Split quantumclient out.

25 files changed, 2961 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2bd0bd8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,13 @@
+*.pyc
+*.DS_Store
+build/*
+build-stamp
+.coverage
+cover/*
+quantum_client.egg-info/*
+quantum/vcsversion.py
+run_tests.err.log
+run_tests.log
+tests/
+.venv/
+.tox/
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..40817fe
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,4 @@
+[gerrit]
+host=review.openstack.org
+port=29418
+project=openstack/python-quantumclient.git
diff --git a/.pylintrc b/.pylintrc
new file mode 100644
index 0000000..bd677fd
--- /dev/null
+++ b/.pylintrc
@@ -0,0 +1,42 @@
+# The format of this file isn't really documented; just use --generate-rcfile
+[MASTER]
+# Add <file or directory> to the black list. It should be a base name, not a
+# path. You may set this option multiple times.
+ignore=test
+
+[Messages Control]
+# NOTE(justinsb): We might want to have a 2nd strict pylintrc in future
+# C0111: Don't require docstrings on every method
+# W0511: TODOs in code comments are fine.
+# W0142: *args and **kwargs are fine.
+# W0622: Redefining id is fine.
+disable=C0111,W0511,W0142,W0622
+
+[Basic]
+# Variable names can be 1 to 31 characters long, with lowercase and underscores
+variable-rgx=[a-z_][a-z0-9_]{0,30}$
+
+# Argument names can be 2 to 31 characters long, with lowercase and underscores
+argument-rgx=[a-z_][a-z0-9_]{1,30}$
+
+# Method names should be at least 3 characters long
+# and be lowecased with underscores
+method-rgx=([a-z_][a-z0-9_]{2,50}|setUp|tearDown)$
+
+# Module names matching quantum-* are ok (files in bin/)
+module-rgx=(([a-z_][a-z0-9_]*)|([A-Z][a-zA-Z0-9]+)|(quantum-[a-z0-9_-]+))$
+
+# Don't require docstrings on tests.
+no-docstring-rgx=((__.*__)|([tT]est.*)|setUp|tearDown)$
+
+[Design]
+max-public-methods=100
+min-public-methods=0
+max-args=6
+
+[Variables]
+
+# List of additional names supposed to be defined in builtins. Remember that
+# you should avoid to define new builtins when possible.
+# _ is used by our localization
+additional-builtins=_
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..68c771a
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,176 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
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+      the conditions stated in this License.
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+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
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+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
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+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
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+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
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+      of your accepting any such warranty or additional liability.
+
diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..659a195
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1,3 @@
+include tox.ini
+include version.py
+include tools/*
diff --git a/quantum/__init__.py b/quantum/__init__.py
new file mode 100644
index 0000000..d5dcad6
--- /dev/null
+++ b/quantum/__init__.py
@@ -0,0 +1,19 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2011 OpenStack LLC
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from pkgutil import extend_path
+__path__ = extend_path(__path__, __name__)
diff --git a/__init__.py b/quantum/client/__init__.py
index d4e032c..d4e032c 100644
--- a/__init__.py
+++ b/quantum/client/__init__.py
diff --git a/cli.py b/quantum/client/cli.py
index bc06771..bc06771 100755
--- a/cli.py
+++ b/quantum/client/cli.py
diff --git a/cli_lib.py b/quantum/client/cli_lib.py
index d7d8774..d7d8774 100755
--- a/cli_lib.py
+++ b/quantum/client/cli_lib.py
diff --git a/quantum/client/tests/__init__.py b/quantum/client/tests/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/quantum/client/tests/__init__.py
diff --git a/quantum/client/tests/unit/__init__.py b/quantum/client/tests/unit/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/quantum/client/tests/unit/__init__.py
diff --git a/quantum/client/tests/unit/test_cli.py b/quantum/client/tests/unit/test_cli.py
new file mode 100644
index 0000000..09c8445
--- /dev/null
+++ b/quantum/client/tests/unit/test_cli.py
@@ -0,0 +1,422 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2010-2011 ????
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+#    @author: Salvatore Orlando, Citrix Systems
+
+""" Module containing unit tests for Quantum
+    command line interface
+
+"""
+
+
+import logging
+import sys
+import unittest
+
+from quantum import api as server
+from quantum.client import cli_lib as cli
+from quantum.client import Client
+from quantum.db import api as db
+from quantum.tests.unit.client_tools import stubs as client_stubs
+
+LOG = logging.getLogger('quantum.tests.test_cli')
+FORMAT = 'json'
+
+
+class CLITest(unittest.TestCase):
+
+    def setUp(self):
+        """Prepare the test environment"""
+        options = {}
+        options['plugin_provider'] = \
+          'quantum.plugins.sample.SamplePlugin.FakePlugin'
+        #TODO: make the version of the API router configurable
+        self.api = server.APIRouterV11(options)
+
+        self.tenant_id = "test_tenant"
+        self.network_name_1 = "test_network_1"
+        self.network_name_2 = "test_network_2"
+        # Prepare client and plugin manager
+        self.client = Client(tenant=self.tenant_id, format=FORMAT,
+                             testingStub=client_stubs.FakeHTTPConnection)
+        # Redirect stdout
+        self.fake_stdout = client_stubs.FakeStdout()
+        sys.stdout = self.fake_stdout
+
+    def tearDown(self):
+        """Clear the test environment"""
+        db.clear_db()
+        sys.stdout = sys.__stdout__
+
+    def _verify_list_networks(self):
+            # Verification - get raw result from db
+            nw_list = db.network_list(self.tenant_id)
+            networks = [dict(id=nw.uuid, name=nw.name) for nw in nw_list]
+            # Fill CLI template
+            output = cli.prepare_output('list_nets', self.tenant_id,
+                                        dict(networks=networks))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def _verify_create_network(self):
+            # Verification - get raw result from db
+            nw_list = db.network_list(self.tenant_id)
+            if len(nw_list) != 1:
+                self.fail("No network created")
+            network_id = nw_list[0].uuid
+            # Fill CLI template
+            output = cli.prepare_output('create_net', self.tenant_id,
+                                        dict(network_id=network_id))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def _verify_delete_network(self, network_id):
+            # Verification - get raw result from db
+            nw_list = db.network_list(self.tenant_id)
+            if len(nw_list) != 0:
+                self.fail("DB should not contain any network")
+            # Fill CLI template
+            output = cli.prepare_output('delete_net', self.tenant_id,
+                                        dict(network_id=network_id))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def _verify_update_network(self):
+            # Verification - get raw result from db
+            nw_list = db.network_list(self.tenant_id)
+            network_data = {'id': nw_list[0].uuid,
+                            'name': nw_list[0].name}
+            # Fill CLI template
+            output = cli.prepare_output('update_net', self.tenant_id,
+                                        dict(network=network_data))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def _verify_show_network(self):
+            # Verification - get raw result from db
+            nw = db.network_list(self.tenant_id)[0]
+            network = dict(id=nw.uuid, name=nw.name)
+            # Fill CLI template
+            output = cli.prepare_output('show_net', self.tenant_id,
+                                        dict(network=network))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def _verify_list_ports(self, network_id):
+            # Verification - get raw result from db
+            port_list = db.port_list(network_id)
+            ports = [dict(id=port.uuid, state=port.state)
+                     for port in port_list]
+            # Fill CLI template
+            output = cli.prepare_output('list_ports', self.tenant_id,
+                                        dict(network_id=network_id,
+                                             ports=ports))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def _verify_create_port(self, network_id):
+            # Verification - get raw result from db
+            port_list = db.port_list(network_id)
+            if len(port_list) != 1:
+                self.fail("No port created")
+            port_id = port_list[0].uuid
+            # Fill CLI template
+            output = cli.prepare_output('create_port', self.tenant_id,
+                                        dict(network_id=network_id,
+                                             port_id=port_id))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def _verify_delete_port(self, network_id, port_id):
+            # Verification - get raw result from db
+            port_list = db.port_list(network_id)
+            if len(port_list) != 0:
+                self.fail("DB should not contain any port")
+            # Fill CLI template
+            output = cli.prepare_output('delete_port', self.tenant_id,
+                                        dict(network_id=network_id,
+                                             port_id=port_id))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def _verify_update_port(self, network_id, port_id):
+            # Verification - get raw result from db
+            port = db.port_get(port_id, network_id)
+            port_data = {'id': port.uuid, 'state': port.state}
+            # Fill CLI template
+            output = cli.prepare_output('update_port', self.tenant_id,
+                                        dict(network_id=network_id,
+                                             port=port_data))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def _verify_show_port(self, network_id, port_id):
+            # Verification - get raw result from db
+            # TODO(salvatore-orlando): Must resolve this issue with
+            # attachment in separate bug fix.
+            port = db.port_get(port_id, network_id)
+            port_data = {'id': port.uuid, 'state': port.state,
+                         'attachment': "<none>"}
+            if port.interface_id is not None:
+                port_data['attachment'] = port.interface_id
+
+            # Fill CLI template
+            output = cli.prepare_output('show_port', self.tenant_id,
+                                        dict(network_id=network_id,
+                                             port=port_data))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def _verify_plug_iface(self, network_id, port_id):
+            # Verification - get raw result from db
+            port = db.port_get(port_id, network_id)
+            # Fill CLI template
+            output = cli.prepare_output("plug_iface", self.tenant_id,
+                                        dict(network_id=network_id,
+                                             port_id=port['uuid'],
+                                             attachment=port['interface_id']))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def _verify_unplug_iface(self, network_id, port_id):
+            # Verification - get raw result from db
+            port = db.port_get(port_id, network_id)
+            # Fill CLI template
+            output = cli.prepare_output("unplug_iface", self.tenant_id,
+                                        dict(network_id=network_id,
+                                             port_id=port['uuid']))
+            # Verify!
+            # Must add newline at the end to match effect of print call
+            self.assertEquals(self.fake_stdout.make_string(), output + '\n')
+
+    def test_list_networks(self):
+        try:
+            # Pre-populate data for testing using db api
+            db.network_create(self.tenant_id, self.network_name_1)
+            db.network_create(self.tenant_id, self.network_name_2)
+
+            cli.list_nets(self.client, self.tenant_id)
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_list_networks failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_list_networks()
+
+    def test_create_network(self):
+        try:
+            cli.create_net(self.client, self.tenant_id, "test")
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_create_network failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_create_network()
+
+    def test_delete_network(self):
+        try:
+            db.network_create(self.tenant_id, self.network_name_1)
+            network_id = db.network_list(self.tenant_id)[0]['uuid']
+            cli.delete_net(self.client, self.tenant_id, network_id)
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_delete_network failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_delete_network(network_id)
+
+    def test_show_network(self):
+        try:
+            # Load some data into the datbase
+            net = db.network_create(self.tenant_id, self.network_name_1)
+            cli.show_net(self.client, self.tenant_id, net['uuid'])
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_detail_network failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_show_network()
+
+    def test_update_network(self):
+        try:
+            net = db.network_create(self.tenant_id, self.network_name_1)
+            network_id = net['uuid']
+            cli.update_net(self.client, self.tenant_id,
+                           network_id, 'name=%s' % self.network_name_2)
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_update_network failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_update_network()
+
+    def test_list_ports(self):
+        try:
+            # Pre-populate data for testing using db api
+            net = db.network_create(self.tenant_id, self.network_name_1)
+            network_id = net['uuid']
+            db.port_create(network_id)
+            db.port_create(network_id)
+            cli.list_ports(self.client, self.tenant_id, network_id)
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_list_ports failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_list_ports(network_id)
+
+    def test_create_port(self):
+        network_id = None
+        try:
+            # Pre-populate data for testing using db api
+            net = db.network_create(self.tenant_id, self.network_name_1)
+            network_id = net['uuid']
+            cli.create_port(self.client, self.tenant_id, network_id)
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_create_port failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_create_port(network_id)
+
+    def test_delete_port(self):
+        network_id = None
+        port_id = None
+        try:
+            # Pre-populate data for testing using db api
+            net = db.network_create(self.tenant_id, self.network_name_1)
+            network_id = net['uuid']
+            port = db.port_create(network_id)
+            port_id = port['uuid']
+            cli.delete_port(self.client, self.tenant_id, network_id, port_id)
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_delete_port failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_delete_port(network_id, port_id)
+
+    def test_update_port(self):
+        try:
+            net = db.network_create(self.tenant_id, self.network_name_1)
+            network_id = net['uuid']
+            port = db.port_create(network_id)
+            port_id = port['uuid']
+            # Default state is DOWN - change to ACTIVE.
+            cli.update_port(self.client, self.tenant_id, network_id,
+                               port_id, 'state=ACTIVE')
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_update_port failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_update_port(network_id, port_id)
+
+    def test_show_port_no_attach(self):
+        network_id = None
+        port_id = None
+        try:
+            # Pre-populate data for testing using db api
+            net = db.network_create(self.tenant_id, self.network_name_1)
+            network_id = net['uuid']
+            port = db.port_create(network_id)
+            port_id = port['uuid']
+            cli.show_port(self.client, self.tenant_id, network_id, port_id)
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_show_port_no_attach failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_show_port(network_id, port_id)
+
+    def test_show_port_with_attach(self):
+        network_id = None
+        port_id = None
+        iface_id = "flavor crystals"
+        try:
+            # Pre-populate data for testing using db api
+            net = db.network_create(self.tenant_id, self.network_name_1)
+            network_id = net['uuid']
+            port = db.port_create(network_id)
+            port_id = port['uuid']
+            db.port_set_attachment(port_id, network_id, iface_id)
+            cli.show_port(self.client, self.tenant_id, network_id, port_id)
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_show_port_with_attach failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_show_port(network_id, port_id)
+
+    def test_plug_iface(self):
+        network_id = None
+        port_id = None
+        try:
+            # Load some data into the datbase
+            net = db.network_create(self.tenant_id, self.network_name_1)
+            network_id = net['uuid']
+            port = db.port_create(net['uuid'])
+            port_id = port['uuid']
+            cli.plug_iface(self.client, self.tenant_id, network_id,
+                           port_id, "test_iface_id")
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_plug_iface failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_plug_iface(network_id, port_id)
+
+    def test_unplug_iface(self):
+        network_id = None
+        port_id = None
+        try:
+            # Load some data into the datbase
+            net = db.network_create(self.tenant_id, self.network_name_1)
+            network_id = net['uuid']
+            port = db.port_create(net['uuid'])
+            port_id = port['uuid']
+            db.port_set_attachment(port_id, network_id, "test_iface_id")
+            cli.unplug_iface(self.client, self.tenant_id, network_id, port_id)
+        except:
+            LOG.exception("Exception caught: %s", sys.exc_info())
+            self.fail("test_plug_iface failed due to an exception")
+
+        LOG.debug("Operation completed. Verifying result")
+        LOG.debug(self.fake_stdout.content)
+        self._verify_unplug_iface(network_id, port_id)
diff --git a/quantum/client/tests/unit/test_clientlib.py b/quantum/client/tests/unit/test_clientlib.py
new file mode 100644
index 0000000..b87050f
--- /dev/null
+++ b/quantum/client/tests/unit/test_clientlib.py
@@ -0,0 +1,625 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2011 Cisco Systems
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+#    @author: Tyler Smith, Cisco Systems
+
+import logging
+import unittest
+import re
+
+from quantum.common.serializer import Serializer
+from quantum.client import Client
+
+LOG = logging.getLogger('quantum.tests.test_api')
+
+# Set a couple tenants to use for testing
+TENANT_1 = 'totore'
+TENANT_2 = 'totore2'
+
+
+class ServerStub():
+    """This class stubs a basic server for the API client to talk to"""
+
+    class Response(object):
+        """This class stubs a basic response to send the API client"""
+        def __init__(self, content=None, status=None):
+            self.content = content
+            self.status = status
+
+        def read(self):
+            return self.content
+
+        def status(self):
+            return self.status
+
+    # To test error codes, set the host to 10.0.0.1, and the port to the code
+    def __init__(self, host, port=9696, key_file="", cert_file=""):
+        self.host = host
+        self.port = port
+        self.key_file = key_file
+        self.cert_file = cert_file
+
+    def request(self, method, action, body, headers):
+        self.method = method
+        self.action = action
+        self.body = body
+
+    def status(self, status=None):
+        return status or 200
+
+    def getresponse(self):
+        res = self.Response(status=self.status())
+
+        # If the host is 10.0.0.1, return the port as an error code
+        if self.host == "10.0.0.1":
+            res.status = self.port
+            return res
+
+        # Extract important information from the action string to assure sanity
+        match = re.search('tenants/(.+?)/(.+)\.(json|xml)$', self.action)
+
+        tenant = match.group(1)
+        path = match.group(2)
+        format = match.group(3)
+
+        data = {'data': {'method': self.method, 'action': self.action,
+                         'body': self.body, 'tenant': tenant, 'path': path,
+                         'format': format, 'key_file': self.key_file,
+                         'cert_file': self.cert_file}}
+
+        # Serialize it to the proper format so the API client can handle it
+        if data['data']['format'] == 'json':
+            res.content = Serializer().serialize(data, "application/json")
+        else:
+            res.content = Serializer().serialize(data, "application/xml")
+        return res
+
+
+class APITest(unittest.TestCase):
+
+    def setUp(self):
+        """ Setups a test environment for the API client """
+        HOST = '127.0.0.1'
+        PORT = 9696
+        USE_SSL = False
+
+        self.client = Client(HOST, PORT, USE_SSL, TENANT_1, 'json', ServerStub)
+
+    def _assert_sanity(self, call, status, method, path, data=[], params={}):
+        """ Perform common assertions to test the sanity of client requests """
+
+        # Handle an error case first
+        if status != 200:
+            (self.client.host, self.client.port) = ("10.0.0.1", status)
+            self.assertRaises(Exception, call, *data, **params)
+            return
+
+        # Make the call, then get the data from the root node and assert it
+        data = call(*data, **params)['data']
+
+        self.assertEqual(data['method'], method)
+        self.assertEqual(data['format'], params['format'])
+        self.assertEqual(data['tenant'], params['tenant'])
+        self.assertEqual(data['path'], path)
+
+        return data
+
+    def _test_list_networks(self, tenant=TENANT_1, format='json', status=200):
+        LOG.debug("_test_list_networks - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.list_networks,
+                            status,
+                            "GET",
+                            "networks",
+                            data=[],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_list_networks - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_show_network_details(self,
+                                   tenant=TENANT_1, format='json', status=200):
+        LOG.debug("_test_show_network_details - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.show_network_details,
+                            status,
+                            "GET",
+                            "networks/001",
+                            data=["001"],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_show_network_details - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_create_network(self, tenant=TENANT_1, format='json', status=200):
+        LOG.debug("_test_create_network - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.create_network,
+                            status,
+                            "POST",
+                            "networks",
+                            data=[{'network': {'net-name': 'testNetwork'}}],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_create_network - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_update_network(self, tenant=TENANT_1, format='json', status=200):
+        LOG.debug("_test_update_network - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.update_network,
+                            status,
+                            "PUT",
+                            "networks/001",
+                            data=["001",
+                                  {'network': {'net-name': 'newName'}}],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_update_network - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_delete_network(self, tenant=TENANT_1, format='json', status=200):
+        LOG.debug("_test_delete_network - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.delete_network,
+                            status,
+                            "DELETE",
+                            "networks/001",
+                            data=["001"],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_delete_network - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_list_ports(self, tenant=TENANT_1, format='json', status=200):
+        LOG.debug("_test_list_ports - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.list_ports,
+                            status,
+                            "GET",
+                            "networks/001/ports",
+                            data=["001"],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_list_ports - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_show_port_details(self,
+                                tenant=TENANT_1, format='json', status=200):
+        LOG.debug("_test_show_port_details - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.show_port_details,
+                            status,
+                            "GET",
+                            "networks/001/ports/001",
+                            data=["001", "001"],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_show_port_details - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_create_port(self, tenant=TENANT_1, format='json', status=200):
+        LOG.debug("_test_create_port - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.create_port,
+                            status,
+                            "POST",
+                            "networks/001/ports",
+                            data=["001"],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_create_port - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_delete_port(self, tenant=TENANT_1, format='json', status=200):
+        LOG.debug("_test_delete_port - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.delete_port,
+                            status,
+                            "DELETE",
+                            "networks/001/ports/001",
+                            data=["001", "001"],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_delete_port - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_update_port(self, tenant=TENANT_1, format='json', status=200):
+        LOG.debug("_test_update_port - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.update_port,
+                            status,
+                            "PUT",
+                            "networks/001/ports/001",
+                            data=["001", "001",
+                                  {'port': {'state': 'ACTIVE'}}],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_update_port - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_show_port_attachment(self,
+                                   tenant=TENANT_1, format='json', status=200):
+        LOG.debug("_test_show_port_attachment - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.show_port_attachment,
+                            status,
+                            "GET",
+                            "networks/001/ports/001/attachment",
+                            data=["001", "001"],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_show_port_attachment - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_attach_resource(self, tenant=TENANT_1,
+                              format='json', status=200):
+        LOG.debug("_test_attach_resource - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.attach_resource,
+                            status,
+                            "PUT",
+                            "networks/001/ports/001/attachment",
+                            data=["001", "001",
+                                    {'resource': {'id': '1234'}}],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_attach_resource - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_detach_resource(self, tenant=TENANT_1,
+                              format='json', status=200):
+        LOG.debug("_test_detach_resource - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        self._assert_sanity(self.client.detach_resource,
+                            status,
+                            "DELETE",
+                            "networks/001/ports/001/attachment",
+                            data=["001", "001"],
+                            params={'tenant': tenant, 'format': format})
+
+        LOG.debug("_test_detach_resource - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def _test_ssl_certificates(self, tenant=TENANT_1,
+                               format='json', status=200):
+        LOG.debug("_test_ssl_certificates - tenant:%s "\
+                  "- format:%s - START", format, tenant)
+
+        # Set SSL, and our cert file
+        self.client.use_ssl = True
+        cert_file = "/fake.cert"
+        self.client.key_file = self.client.cert_file = cert_file
+
+        data = self._assert_sanity(self.client.list_networks,
+                            status,
+                            "GET",
+                            "networks",
+                            data=[],
+                            params={'tenant': tenant, 'format': format})
+
+        self.assertEquals(data["key_file"], cert_file)
+        self.assertEquals(data["cert_file"], cert_file)
+
+        LOG.debug("_test_ssl_certificates - tenant:%s "\
+                  "- format:%s - END", format, tenant)
+
+    def test_list_networks_json(self):
+        self._test_list_networks(format='json')
+
+    def test_list_networks_xml(self):
+        self._test_list_networks(format='xml')
+
+    def test_list_networks_alt_tenant(self):
+        self._test_list_networks(tenant=TENANT_2)
+
+    def test_list_networks_error_470(self):
+        self._test_list_networks(status=470)
+
+    def test_list_networks_error_401(self):
+        self._test_list_networks(status=401)
+
+    def test_show_network_details_json(self):
+        self._test_show_network_details(format='json')
+
+    def test_show_network_details_xml(self):
+        self._test_show_network_details(format='xml')
+
+    def test_show_network_details_alt_tenant(self):
+        self._test_show_network_details(tenant=TENANT_2)
+
+    def test_show_network_details_error_470(self):
+        self._test_show_network_details(status=470)
+
+    def test_show_network_details_error_401(self):
+        self._test_show_network_details(status=401)
+
+    def test_show_network_details_error_420(self):
+        self._test_show_network_details(status=420)
+
+    def test_create_network_json(self):
+        self._test_create_network(format='json')
+
+    def test_create_network_xml(self):
+        self._test_create_network(format='xml')
+
+    def test_create_network_alt_tenant(self):
+        self._test_create_network(tenant=TENANT_2)
+
+    def test_create_network_error_470(self):
+        self._test_create_network(status=470)
+
+    def test_create_network_error_401(self):
+        self._test_create_network(status=401)
+
+    def test_create_network_error_400(self):
+        self._test_create_network(status=400)
+
+    def test_create_network_error_422(self):
+        self._test_create_network(status=422)
+
+    def test_update_network_json(self):
+        self._test_update_network(format='json')
+
+    def test_update_network_xml(self):
+        self._test_update_network(format='xml')
+
+    def test_update_network_alt_tenant(self):
+        self._test_update_network(tenant=TENANT_2)
+
+    def test_update_network_error_470(self):
+        self._test_update_network(status=470)
+
+    def test_update_network_error_401(self):
+        self._test_update_network(status=401)
+
+    def test_update_network_error_400(self):
+        self._test_update_network(status=400)
+
+    def test_update_network_error_420(self):
+        self._test_update_network(status=420)
+
+    def test_update_network_error_422(self):
+        self._test_update_network(status=422)
+
+    def test_delete_network_json(self):
+        self._test_delete_network(format='json')
+
+    def test_delete_network_xml(self):
+        self._test_delete_network(format='xml')
+
+    def test_delete_network_alt_tenant(self):
+        self._test_delete_network(tenant=TENANT_2)
+
+    def test_delete_network_error_470(self):
+        self._test_delete_network(status=470)
+
+    def test_delete_network_error_401(self):
+        self._test_delete_network(status=401)
+
+    def test_delete_network_error_420(self):
+        self._test_delete_network(status=420)
+
+    def test_delete_network_error_421(self):
+        self._test_delete_network(status=421)
+
+    def test_list_ports_json(self):
+        self._test_list_ports(format='json')
+
+    def test_list_ports_xml(self):
+        self._test_list_ports(format='xml')
+
+    def test_list_ports_alt_tenant(self):
+        self._test_list_ports(tenant=TENANT_2)
+
+    def test_list_ports_error_470(self):
+        self._test_list_ports(status=470)
+
+    def test_list_ports_error_401(self):
+        self._test_list_ports(status=401)
+
+    def test_list_ports_error_420(self):
+        self._test_list_ports(status=420)
+
+    def test_show_port_details_json(self):
+        self._test_list_ports(format='json')
+
+    def test_show_port_details_xml(self):
+        self._test_list_ports(format='xml')
+
+    def test_show_port_details_alt_tenant(self):
+        self._test_list_ports(tenant=TENANT_2)
+
+    def test_show_port_details_error_470(self):
+        self._test_show_port_details(status=470)
+
+    def test_show_port_details_error_401(self):
+        self._test_show_port_details(status=401)
+
+    def test_show_port_details_error_420(self):
+        self._test_show_port_details(status=420)
+
+    def test_show_port_details_error_430(self):
+        self._test_show_port_details(status=430)
+
+    def test_create_port_json(self):
+        self._test_create_port(format='json')
+
+    def test_create_port_xml(self):
+        self._test_create_port(format='xml')
+
+    def test_create_port_alt_tenant(self):
+        self._test_create_port(tenant=TENANT_2)
+
+    def test_create_port_error_470(self):
+        self._test_create_port(status=470)
+
+    def test_create_port_error_401(self):
+        self._test_create_port(status=401)
+
+    def test_create_port_error_400(self):
+        self._test_create_port(status=400)
+
+    def test_create_port_error_420(self):
+        self._test_create_port(status=420)
+
+    def test_create_port_error_430(self):
+        self._test_create_port(status=430)
+
+    def test_create_port_error_431(self):
+        self._test_create_port(status=431)
+
+    def test_delete_port_json(self):
+        self._test_delete_port(format='json')
+
+    def test_delete_port_xml(self):
+        self._test_delete_port(format='xml')
+
+    def test_delete_port_alt_tenant(self):
+        self._test_delete_port(tenant=TENANT_2)
+
+    def test_delete_port_error_470(self):
+        self._test_delete_port(status=470)
+
+    def test_delete_port_error_401(self):
+        self._test_delete_port(status=401)
+
+    def test_delete_port_error_420(self):
+        self._test_delete_port(status=420)
+
+    def test_delete_port_error_430(self):
+        self._test_delete_port(status=430)
+
+    def test_delete_port_error_432(self):
+        self._test_delete_port(status=432)
+
+    def test_update_port_json(self):
+        self._test_update_port(format='json')
+
+    def test_update_port_xml(self):
+        self._test_update_port(format='xml')
+
+    def test_update_port_alt_tenant(self):
+        self._test_update_port(tenant=TENANT_2)
+
+    def test_update_port_error_470(self):
+        self._test_update_port(status=470)
+
+    def test_update_port_error_401(self):
+        self._test_update_port(status=401)
+
+    def test_update_port_error_400(self):
+        self._test_update_port(status=400)
+
+    def test_update_port_error_420(self):
+        self._test_update_port(status=420)
+
+    def test_update_port_error_430(self):
+        self._test_update_port(status=430)
+
+    def test_update_port_error_431(self):
+        self._test_update_port(status=431)
+
+    def test_show_port_attachment_json(self):
+        self._test_show_port_attachment(format='json')
+
+    def test_show_port_attachment_xml(self):
+        self._test_show_port_attachment(format='xml')
+
+    def test_show_port_attachment_alt_tenant(self):
+        self._test_show_port_attachment(tenant=TENANT_2)
+
+    def test_show_port_attachment_error_470(self):
+        self._test_show_port_attachment(status=470)
+
+    def test_show_port_attachment_error_401(self):
+        self._test_show_port_attachment(status=401)
+
+    def test_show_port_attachment_error_400(self):
+        self._test_show_port_attachment(status=400)
+
+    def test_show_port_attachment_error_420(self):
+        self._test_show_port_attachment(status=420)
+
+    def test_show_port_attachment_error_430(self):
+        self._test_show_port_attachment(status=430)
+
+    def test_attach_resource_json(self):
+        self._test_attach_resource(format='json')
+
+    def test_attach_resource_xml(self):
+        self._test_attach_resource(format='xml')
+
+    def test_attach_resource_alt_tenant(self):
+        self._test_attach_resource(tenant=TENANT_2)
+
+    def test_attach_resource_error_470(self):
+        self._test_attach_resource(status=470)
+
+    def test_attach_resource_error_401(self):
+        self._test_attach_resource(status=401)
+
+    def test_attach_resource_error_400(self):
+        self._test_attach_resource(status=400)
+
+    def test_attach_resource_error_420(self):
+        self._test_attach_resource(status=420)
+
+    def test_attach_resource_error_430(self):
+        self._test_attach_resource(status=430)
+
+    def test_attach_resource_error_432(self):
+        self._test_attach_resource(status=432)
+
+    def test_attach_resource_error_440(self):
+        self._test_attach_resource(status=440)
+
+    def test_detach_resource_json(self):
+        self._test_detach_resource(format='json')
+
+    def test_detach_resource_xml(self):
+        self._test_detach_resource(format='xml')
+
+    def test_detach_resource_alt_tenant(self):
+        self._test_detach_resource(tenant=TENANT_2)
+
+    def test_detach_resource_error_470(self):
+        self._test_detach_resource(status=470)
+
+    def test_detach_resource_error_401(self):
+        self._test_detach_resource(status=401)
+
+    def test_detach_resource_error_420(self):
+        self._test_detach_resource(status=420)
+
+    def test_detach_resource_error_430(self):
+        self._test_detach_resource(status=430)
+
+    def test_ssl_certificates(self):
+        self._test_ssl_certificates()
diff --git a/quantum/common/__init__.py b/quantum/common/__init__.py
new file mode 100644
index 0000000..7e695ff
--- /dev/null
+++ b/quantum/common/__init__.py
@@ -0,0 +1,16 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+# Copyright 2011 Nicira Networks, Inc.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+# @author: Somik Behera, Nicira Networks, Inc.
diff --git a/quantum/common/config.py b/quantum/common/config.py
new file mode 100644
index 0000000..3788b5c
--- /dev/null
+++ b/quantum/common/config.py
@@ -0,0 +1,327 @@
+#!/usr/bin/env python
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2011 Nicira Networks, Inc.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Routines for configuring Quantum
+"""
+
+import ConfigParser
+import logging
+import logging.config
+import logging.handlers
+import optparse
+import os
+import re
+import sys
+
+from paste import deploy
+
+from quantum.common import flags
+from quantum.common import exceptions as exception
+
+DEFAULT_LOG_FORMAT = "%(asctime)s %(levelname)8s [%(name)s] %(message)s"
+DEFAULT_LOG_DATE_FORMAT = "%Y-%m-%d %H:%M:%S"
+
+FLAGS = flags.FLAGS
+LOG = logging.getLogger('quantum.wsgi')
+
+
+def parse_options(parser, cli_args=None):
+    """
+    Returns the parsed CLI options, command to run and its arguments, merged
+    with any same-named options found in a configuration file.
+
+    The function returns a tuple of (options, args), where options is a
+    mapping of option key/str(value) pairs, and args is the set of arguments
+    (not options) supplied on the command-line.
+
+    The reason that the option values are returned as strings only is that
+    ConfigParser and paste.deploy only accept string values...
+
+    :param parser: The option parser
+    :param cli_args: (Optional) Set of arguments to process. If not present,
+                     sys.argv[1:] is used.
+    :retval tuple of (options, args)
+    """
+
+    (options, args) = parser.parse_args(cli_args)
+
+    return (vars(options), args)
+
+
+def add_common_options(parser):
+    """
+    Given a supplied optparse.OptionParser, adds an OptionGroup that
+    represents all common configuration options.
+
+    :param parser: optparse.OptionParser
+    """
+    help_text = "The following configuration options are common to "\
+                "all quantum programs."
+
+    group = optparse.OptionGroup(parser, "Common Options", help_text)
+    group.add_option('-v', '--verbose', default=False, dest="verbose",
+                     action="store_true",
+                     help="Print more verbose output")
+    group.add_option('-d', '--debug', default=False, dest="debug",
+                     action="store_true",
+                     help="Print debugging output")
+    group.add_option('--config-file', default=None, metavar="PATH",
+                     help="Path to the config file to use. When not specified "
+                          "(the default), we generally look at the first "
+                          "argument specified to be a config file, and if "
+                          "that is also missing, we search standard "
+                          "directories for a config file.")
+    parser.add_option_group(group)
+
+
+def add_log_options(parser):
+    """
+    Given a supplied optparse.OptionParser, adds an OptionGroup that
+    represents all the configuration options around logging.
+
+    :param parser: optparse.OptionParser
+    """
+    help_text = "The following configuration options are specific to logging "\
+                "functionality for this program."
+
+    group = optparse.OptionGroup(parser, "Logging Options", help_text)
+    group.add_option('--log-config', default=None, metavar="PATH",
+                     help="If this option is specified, the logging "
+                          "configuration file specified is used and overrides "
+                          "any other logging options specified. Please see "
+                          "the Python logging module documentation for "
+                          "details on logging configuration files.")
+    group.add_option('--log-date-format', metavar="FORMAT",
+                      default=DEFAULT_LOG_DATE_FORMAT,
+                      help="Format string for %(asctime)s in log records. "
+                           "Default: %default")
+    group.add_option('--log-file', default=None, metavar="PATH",
+                      help="(Optional) Name of log file to output to. "
+                           "If not set, logging will go to stdout.")
+    group.add_option("--log-dir", default=None,
+                      help="(Optional) The directory to keep log files in "
+                           "(will be prepended to --logfile)")
+    parser.add_option_group(group)
+
+
+def setup_logging(options, conf):
+    """
+    Sets up the logging options for a log with supplied name
+
+    :param options: Mapping of typed option key/values
+    :param conf: Mapping of untyped key/values from config file
+    """
+
+    if options.get('log_config', None):
+        # Use a logging configuration file for all settings...
+        if os.path.exists(options['log_config']):
+            logging.config.fileConfig(options['log_config'])
+            return
+        else:
+            raise RuntimeError("Unable to locate specified logging "
+                               "config file: %s" % options['log_config'])
+
+    # If either the CLI option or the conf value
+    # is True, we set to True
+    debug = options.get('debug') or \
+            get_option(conf, 'debug', type='bool', default=False)
+    verbose = options.get('verbose') or \
+            get_option(conf, 'verbose', type='bool', default=False)
+    root_logger = logging.root
+    if debug:
+        root_logger.setLevel(logging.DEBUG)
+    elif verbose:
+        root_logger.setLevel(logging.INFO)
+    else:
+        root_logger.setLevel(logging.WARNING)
+
+    # Set log configuration from options...
+    # Note that we use a hard-coded log format in the options
+    # because of Paste.Deploy bug #379
+    # http://trac.pythonpaste.org/pythonpaste/ticket/379
+    log_format = options.get('log_format', DEFAULT_LOG_FORMAT)
+    log_date_format = options.get('log_date_format', DEFAULT_LOG_DATE_FORMAT)
+    formatter = logging.Formatter(log_format, log_date_format)
+
+    logfile = options.get('log_file')
+    if not logfile:
+        logfile = conf.get('log_file')
+
+    if logfile:
+        logdir = options.get('log_dir')
+        if not logdir:
+            logdir = conf.get('log_dir')
+        if logdir:
+            logfile = os.path.join(logdir, logfile)
+        logfile = logging.FileHandler(logfile)
+        logfile.setFormatter(formatter)
+        logfile.setFormatter(formatter)
+        root_logger.addHandler(logfile)
+    else:
+        handler = logging.StreamHandler(sys.stdout)
+        handler.setFormatter(formatter)
+        root_logger.addHandler(handler)
+
+
+def find_config_file(options, args, config_file='quantum.conf'):
+    """
+    Return the first config file found.
+
+    We search for the paste config file in the following order:
+    * If --config-file option is used, use that
+    * If args[0] is a file, use that
+    * Search for the configuration file in standard directories:
+        * .
+        * ~.quantum/
+        * ~
+        * $FLAGS.state_path/etc/quantum
+        * $FLAGS.state_path/etc
+
+    :retval Full path to config file, or None if no config file found
+    """
+
+    fix_path = lambda p: os.path.abspath(os.path.expanduser(p))
+    if options.get('config_file'):
+        if os.path.exists(options['config_file']):
+            return fix_path(options['config_file'])
+    elif args:
+        if os.path.exists(args[0]):
+            return fix_path(args[0])
+
+    dir_to_common = os.path.dirname(os.path.abspath(__file__))
+    root = os.path.join(dir_to_common, '..', '..', '..', '..')
+    # Handle standard directory search for the config file
+    config_file_dirs = [fix_path(os.path.join(os.getcwd(), 'etc')),
+                        fix_path(os.path.join('~', '.quantum-venv', 'etc',
+                                 'quantum')),
+                        fix_path('~'),
+                        os.path.join(FLAGS.state_path, 'etc'),
+                        os.path.join(FLAGS.state_path, 'etc', 'quantum'),
+                        fix_path(os.path.join('~', '.local',
+                                              'etc', 'quantum')),
+                        '/usr/etc/quantum',
+                        '/usr/local/etc/quantum',
+                        '/etc/quantum/',
+                        '/etc']
+
+    if 'plugin' in options:
+        config_file_dirs = [os.path.join(x, 'quantum', 'plugins',
+                                             options['plugin'])
+                            for x in config_file_dirs]
+
+    if os.path.exists(os.path.join(root, 'plugins')):
+        plugins = [fix_path(os.path.join(root, 'plugins', p, 'etc'))
+                  for p in os.listdir(os.path.join(root, 'plugins'))]
+        plugins = [p for p in plugins if os.path.isdir(p)]
+        config_file_dirs.extend(plugins)
+
+    for cfg_dir in config_file_dirs:
+        cfg_file = os.path.join(cfg_dir, config_file)
+        if os.path.exists(cfg_file):
+            return cfg_file
+
+
+def load_paste_config(app_name, options, args):
+    """
+    Looks for a config file to use for an app and returns the
+    config file path and a configuration mapping from a paste config file.
+
+    We search for the paste config file in the following order:
+    * If --config-file option is used, use that
+    * If args[0] is a file, use that
+    * Search for quantum.conf in standard directories:
+        * .
+        * ~.quantum/
+        * ~
+        * /etc/quantum
+        * /etc
+
+    :param app_name: Name of the application to load config for, or None.
+                     None signifies to only load the [DEFAULT] section of
+                     the config file.
+    :param options: Set of typed options returned from parse_options()
+    :param args: Command line arguments from argv[1:]
+    :retval Tuple of (conf_file, conf)
+
+    :raises RuntimeError when config file cannot be located or there was a
+            problem loading the configuration file.
+    """
+    conf_file = find_config_file(options, args)
+    if not conf_file:
+        raise RuntimeError("Unable to locate any configuration file. "
+                            "Cannot load application %s" % app_name)
+    try:
+        conf = deploy.appconfig("config:%s" % conf_file, name=app_name)
+        return conf_file, conf
+    except Exception, e:
+        raise RuntimeError("Error trying to load config %s: %s"
+                           % (conf_file, e))
+
+
+def load_paste_app(app_name, options, args):
+    """
+    Builds and returns a WSGI app from a paste config file.
+
+    We search for the paste config file in the following order:
+    * If --config-file option is used, use that
+    * If args[0] is a file, use that
+    * Search for quantum.conf in standard directories:
+        * .
+        * ~.quantum/
+        * ~
+        * /etc/quantum
+        * /etc
+
+    :param app_name: Name of the application to load
+    :param options: Set of typed options returned from parse_options()
+    :param args: Command line arguments from argv[1:]
+
+    :raises RuntimeError when config file cannot be located or application
+            cannot be loaded from config file
+    """
+    conf_file, conf = load_paste_config(app_name, options, args)
+
+    try:
+        app = deploy.loadapp("config:%s" % conf_file, name=app_name)
+    except (LookupError, ImportError), e:
+        raise RuntimeError("Unable to load %(app_name)s from "
+                           "configuration file %(conf_file)s."
+                           "\nGot: %(e)r" % locals())
+    return conf, app
+
+
+def get_option(options, option, **kwargs):
+    if option in options:
+        value = options[option]
+        type_ = kwargs.get('type', 'str')
+        if type_ == 'bool':
+            if hasattr(value, 'lower'):
+                return value.lower() == 'true'
+            else:
+                return value
+        elif type_ == 'int':
+            return int(value)
+        elif type_ == 'float':
+            return float(value)
+        else:
+            return value
+    elif 'default' in kwargs:
+        return kwargs['default']
+    else:
+        raise KeyError("option '%s' not found" % option)
diff --git a/quantum/common/exceptions.py b/quantum/common/exceptions.py
new file mode 100644
index 0000000..0975435
--- /dev/null
+++ b/quantum/common/exceptions.py
@@ -0,0 +1,174 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2011 Nicira Networks, Inc
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Quantum base exception handling, including decorator for re-raising
+Quantum-type exceptions. SHOULD include dedicated exception logging.
+"""
+
+import logging
+import gettext
+
+gettext.install('quantum', unicode=1)
+
+
+class QuantumException(Exception):
+    """Base Quantum Exception
+
+    Taken from nova.exception.NovaException
+    To correctly use this class, inherit from it and define
+    a 'message' property. That message will get printf'd
+    with the keyword arguments provided to the constructor.
+
+    """
+    message = _("An unknown exception occurred.")
+
+    def __init__(self, **kwargs):
+        try:
+            self._error_string = self.message % kwargs
+
+        except Exception:
+            # at least get the core message out if something happened
+            self._error_string = self.message
+
+    def __str__(self):
+        return self._error_string
+
+
+class ProcessExecutionError(IOError):
+    def __init__(self, stdout=None, stderr=None, exit_code=None, cmd=None,
+                 description=None):
+        if description is None:
+            description = "Unexpected error while running command."
+        if exit_code is None:
+            exit_code = '-'
+        message = "%s\nCommand: %s\nExit code: %s\nStdout: %r\nStderr: %r" % (
+                  description, cmd, exit_code, stdout, stderr)
+        IOError.__init__(self, message)
+
+
+class Error(Exception):
+    def __init__(self, message=None):
+        super(Error, self).__init__(message)
+
+
+class ApiError(Error):
+    def __init__(self, message='Unknown', code='Unknown'):
+        self.message = message
+        self.code = code
+        super(ApiError, self).__init__('%s: %s' % (code, message))
+
+
+class NotFound(QuantumException):
+    pass
+
+
+class ClassNotFound(NotFound):
+    message = _("Class %(class_name)s could not be found")
+
+
+class NetworkNotFound(NotFound):
+    message = _("Network %(net_id)s could not be found")
+
+
+class PortNotFound(NotFound):
+    message = _("Port %(port_id)s could not be found " \
+                "on network %(net_id)s")
+
+
+class StateInvalid(QuantumException):
+    message = _("Unsupported port state: %(port_state)s")
+
+
+class NetworkInUse(QuantumException):
+    message = _("Unable to complete operation on network %(net_id)s. " \
+                "There is one or more attachments plugged into its ports.")
+
+
+class PortInUse(QuantumException):
+    message = _("Unable to complete operation on port %(port_id)s " \
+                "for network %(net_id)s. The attachment '%(att_id)s" \
+                "is plugged into the logical port.")
+
+
+class AlreadyAttached(QuantumException):
+    message = _("Unable to plug the attachment %(att_id)s into port " \
+                "%(port_id)s for network %(net_id)s. The attachment is " \
+                "already plugged into port %(att_port_id)s")
+
+
+# NOTE: on the client side, we often do not know all of the information
+# that is known on the server, thus, we create separate exception for
+# those scenarios
+class PortInUseClient(QuantumException):
+    message = _("Unable to complete operation on port %(port_id)s " \
+                "for network %(net_id)s. An attachment " \
+                "is plugged into the logical port.")
+
+
+class AlreadyAttachedClient(QuantumException):
+    message = _("Unable to plug the attachment %(att_id)s into port " \
+                "%(port_id)s for network %(net_id)s. The attachment is " \
+                "already plugged into another port.")
+
+
+class MalformedRequestBody(QuantumException):
+    message = _("Malformed request body: %(reason)s")
+
+
+class Duplicate(Error):
+    pass
+
+
+class NotAuthorized(Error):
+    pass
+
+
+class NotEmpty(Error):
+    pass
+
+
+class Invalid(Error):
+    pass
+
+
+class InvalidContentType(Invalid):
+    message = _("Invalid content type %(content_type)s.")
+
+
+class BadInputError(Exception):
+    """Error resulting from a client sending bad input to a server"""
+    pass
+
+
+class MissingArgumentError(Error):
+    pass
+
+
+def wrap_exception(f):
+    def _wrap(*args, **kw):
+        try:
+            return f(*args, **kw)
+        except Exception, e:
+            if not isinstance(e, Error):
+                #exc_type, exc_value, exc_traceback = sys.exc_info()
+                logging.exception('Uncaught exception')
+                #logging.error(traceback.extract_stack(exc_traceback))
+                raise Error(str(e))
+            raise
+    _wrap.func_name = f.func_name
+    return _wrap
diff --git a/quantum/common/flags.py b/quantum/common/flags.py
new file mode 100644
index 0000000..16badd3
--- /dev/null
+++ b/quantum/common/flags.py
@@ -0,0 +1,249 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2011 Citrix Systems, Inc.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""Command-line flag library.
+
+Wraps gflags.
+Global flags should be defined here, the rest are defined where they're used.
+
+"""
+import getopt
+import gflags
+import os
+import string
+import sys
+
+
+class FlagValues(gflags.FlagValues):
+    """Extension of gflags.FlagValues that allows undefined and runtime flags.
+
+    Unknown flags will be ignored when parsing the command line, but the
+    command line will be kept so that it can be replayed if new flags are
+    defined after the initial parsing.
+
+    """
+
+    def __init__(self, extra_context=None):
+        gflags.FlagValues.__init__(self)
+        self.__dict__['__dirty'] = []
+        self.__dict__['__was_already_parsed'] = False
+        self.__dict__['__stored_argv'] = []
+        self.__dict__['__extra_context'] = extra_context
+
+    def __call__(self, argv):
+        # We're doing some hacky stuff here so that we don't have to copy
+        # out all the code of the original verbatim and then tweak a few lines.
+        # We're hijacking the output of getopt so we can still return the
+        # leftover args at the end
+        sneaky_unparsed_args = {"value": None}
+        original_argv = list(argv)
+
+        if self.IsGnuGetOpt():
+            orig_getopt = getattr(getopt, 'gnu_getopt')
+            orig_name = 'gnu_getopt'
+        else:
+            orig_getopt = getattr(getopt, 'getopt')
+            orig_name = 'getopt'
+
+        def _sneaky(*args, **kw):
+            optlist, unparsed_args = orig_getopt(*args, **kw)
+            sneaky_unparsed_args['value'] = unparsed_args
+            return optlist, unparsed_args
+
+        try:
+            setattr(getopt, orig_name, _sneaky)
+            args = gflags.FlagValues.__call__(self, argv)
+        except gflags.UnrecognizedFlagError:
+            # Undefined args were found, for now we don't care so just
+            # act like everything went well
+            # (these three lines are copied pretty much verbatim from the end
+            # of the __call__ function we are wrapping)
+            unparsed_args = sneaky_unparsed_args['value']
+            if unparsed_args:
+                if self.IsGnuGetOpt():
+                    args = argv[:1] + unparsed_args
+                else:
+                    args = argv[:1] + original_argv[-len(unparsed_args):]
+            else:
+                args = argv[:1]
+        finally:
+            setattr(getopt, orig_name, orig_getopt)
+
+        # Store the arguments for later, we'll need them for new flags
+        # added at runtime
+        self.__dict__['__stored_argv'] = original_argv
+        self.__dict__['__was_already_parsed'] = True
+        self.ClearDirty()
+        return args
+
+    def Reset(self):
+        gflags.FlagValues.Reset(self)
+        self.__dict__['__dirty'] = []
+        self.__dict__['__was_already_parsed'] = False
+        self.__dict__['__stored_argv'] = []
+
+    def SetDirty(self, name):
+        """Mark a flag as dirty so that accessing it will case a reparse."""
+        self.__dict__['__dirty'].append(name)
+
+    def IsDirty(self, name):
+        return name in self.__dict__['__dirty']
+
+    def ClearDirty(self):
+        self.__dict__['__is_dirty'] = []
+
+    def WasAlreadyParsed(self):
+        return self.__dict__['__was_already_parsed']
+
+    def ParseNewFlags(self):
+        if '__stored_argv' not in self.__dict__:
+            return
+        new_flags = FlagValues(self)
+        for k in self.__dict__['__dirty']:
+            new_flags[k] = gflags.FlagValues.__getitem__(self, k)
+
+        new_flags(self.__dict__['__stored_argv'])
+        for k in self.__dict__['__dirty']:
+            setattr(self, k, getattr(new_flags, k))
+        self.ClearDirty()
+
+    def __setitem__(self, name, flag):
+        gflags.FlagValues.__setitem__(self, name, flag)
+        if self.WasAlreadyParsed():
+            self.SetDirty(name)
+
+    def __getitem__(self, name):
+        if self.IsDirty(name):
+            self.ParseNewFlags()
+        return gflags.FlagValues.__getitem__(self, name)
+
+    def __getattr__(self, name):
+        if self.IsDirty(name):
+            self.ParseNewFlags()
+        val = gflags.FlagValues.__getattr__(self, name)
+        if type(val) is str:
+            tmpl = string.Template(val)
+            context = [self, self.__dict__['__extra_context']]
+            return tmpl.substitute(StrWrapper(context))
+        return val
+
+
+class StrWrapper(object):
+    """Wrapper around FlagValues objects.
+
+    Wraps FlagValues objects for string.Template so that we're
+    sure to return strings.
+
+    """
+    def __init__(self, context_objs):
+        self.context_objs = context_objs
+
+    def __getitem__(self, name):
+        for context in self.context_objs:
+            val = getattr(context, name, False)
+            if val:
+                return str(val)
+        raise KeyError(name)
+
+
+# Copied from gflags with small mods to get the naming correct.
+# Originally gflags checks for the first module that is not gflags that is
+# in the call chain, we want to check for the first module that is not gflags
+# and not this module.
+def _GetCallingModule():
+    """Returns the name of the module that's calling into this module.
+
+    We generally use this function to get the name of the module calling a
+    DEFINE_foo... function.
+
+    """
+    # Walk down the stack to find the first globals dict that's not ours.
+    for depth in range(1, sys.getrecursionlimit()):
+        if not sys._getframe(depth).f_globals is globals():
+            module_name = __GetModuleName(sys._getframe(depth).f_globals)
+            if module_name == 'gflags':
+                continue
+            if module_name is not None:
+                return module_name
+    raise AssertionError("No module was found")
+
+
+# Copied from gflags because it is a private function
+def __GetModuleName(globals_dict):
+    """Given a globals dict, returns the name of the module that defines it.
+
+    Args:
+    globals_dict: A dictionary that should correspond to an environment
+      providing the values of the globals.
+
+    Returns:
+    A string (the name of the module) or None (if the module could not
+    be identified.
+
+    """
+    for name, module in sys.modules.iteritems():
+        if getattr(module, '__dict__', None) is globals_dict:
+            if name == '__main__':
+                return sys.argv[0]
+            return name
+    return None
+
+
+def _wrapper(func):
+    def _wrapped(*args, **kw):
+        kw.setdefault('flag_values', FLAGS)
+        func(*args, **kw)
+    _wrapped.func_name = func.func_name
+    return _wrapped
+
+
+FLAGS = FlagValues()
+gflags.FLAGS = FLAGS
+gflags._GetCallingModule = _GetCallingModule
+
+
+DEFINE = _wrapper(gflags.DEFINE)
+DEFINE_string = _wrapper(gflags.DEFINE_string)
+DEFINE_integer = _wrapper(gflags.DEFINE_integer)
+DEFINE_bool = _wrapper(gflags.DEFINE_bool)
+DEFINE_boolean = _wrapper(gflags.DEFINE_boolean)
+DEFINE_float = _wrapper(gflags.DEFINE_float)
+DEFINE_enum = _wrapper(gflags.DEFINE_enum)
+DEFINE_list = _wrapper(gflags.DEFINE_list)
+DEFINE_spaceseplist = _wrapper(gflags.DEFINE_spaceseplist)
+DEFINE_multistring = _wrapper(gflags.DEFINE_multistring)
+DEFINE_multi_int = _wrapper(gflags.DEFINE_multi_int)
+DEFINE_flag = _wrapper(gflags.DEFINE_flag)
+HelpFlag = gflags.HelpFlag
+HelpshortFlag = gflags.HelpshortFlag
+HelpXMLFlag = gflags.HelpXMLFlag
+
+
+def DECLARE(name, module_string, flag_values=FLAGS):
+    if module_string not in sys.modules:
+        __import__(module_string, globals(), locals())
+    if name not in flag_values:
+        raise gflags.UnrecognizedFlag(
+                "%s not defined by %s" % (name, module_string))
+
+
+# __GLOBAL FLAGS ONLY__
+# Define any app-specific flags in their own files, docs at:
+# http://code.google.com/p/python-gflags/source/browse/trunk/gflags.py#a9
+
+DEFINE_string('state_path', os.path.join(os.path.dirname(__file__), '../../'),
+              "Top-level directory for maintaining quantum's state")
diff --git a/quantum/common/serializer.py b/quantum/common/serializer.py
new file mode 100644
index 0000000..b596cf8
--- /dev/null
+++ b/quantum/common/serializer.py
@@ -0,0 +1,153 @@
+from xml.dom import minidom
+import webob.exc
+
+from quantum.common import utils
+
+
+class Serializer(object):
+    """Serializes and deserializes dictionaries to certain MIME types."""
+
+    def __init__(self, metadata=None, default_xmlns=None):
+        """Create a serializer based on the given WSGI environment.
+
+        'metadata' is an optional dict mapping MIME types to information
+        needed to serialize a dictionary to that type.
+
+        """
+        self.metadata = metadata or {}
+        self.default_xmlns = default_xmlns
+
+    def _get_serialize_handler(self, content_type):
+        handlers = {
+            'application/json': self._to_json,
+            'application/xml': self._to_xml,
+        }
+
+        try:
+            return handlers[content_type]
+        except Exception:
+            raise exception.InvalidContentType(content_type=content_type)
+
+    def serialize(self, data, content_type):
+        """Serialize a dictionary into the specified content type."""
+        return self._get_serialize_handler(content_type)(data)
+
+    def deserialize(self, datastring, content_type):
+        """Deserialize a string to a dictionary.
+
+        The string must be in the format of a supported MIME type.
+
+        """
+        try:
+            return self.get_deserialize_handler(content_type)(datastring)
+        except Exception:
+            raise webob.exc.HTTPBadRequest("Could not deserialize data")
+
+    def get_deserialize_handler(self, content_type):
+        handlers = {
+            'application/json': self._from_json,
+            'application/xml': self._from_xml,
+        }
+
+        try:
+            return handlers[content_type]
+        except Exception:
+            raise exception.InvalidContentType(content_type=content_type)
+
+    def _from_json(self, datastring):
+        return utils.loads(datastring)
+
+    def _from_xml(self, datastring):
+        xmldata = self.metadata.get('application/xml', {})
+        plurals = set(xmldata.get('plurals', {}))
+        node = minidom.parseString(datastring).childNodes[0]
+        return {node.nodeName: self._from_xml_node(node, plurals)}
+
+    def _from_xml_node(self, node, listnames):
+        """Convert a minidom node to a simple Python type.
+
+        listnames is a collection of names of XML nodes whose subnodes should
+        be considered list items.
+
+        """
+        if len(node.childNodes) == 1 and node.childNodes[0].nodeType == 3:
+            return node.childNodes[0].nodeValue
+        elif node.nodeName in listnames:
+            return [self._from_xml_node(n, listnames)
+                    for n in node.childNodes if n.nodeType != node.TEXT_NODE]
+        else:
+            result = dict()
+            for attr in node.attributes.keys():
+                result[attr] = node.attributes[attr].nodeValue
+            for child in node.childNodes:
+                if child.nodeType != node.TEXT_NODE:
+                    result[child.nodeName] = self._from_xml_node(child,
+                                                                 listnames)
+            return result
+
+    def _to_json(self, data):
+        return utils.dumps(data)
+
+    def _to_xml(self, data):
+        metadata = self.metadata.get('application/xml', {})
+        # We expect data to contain a single key which is the XML root.
+        root_key = data.keys()[0]
+        doc = minidom.Document()
+        node = self._to_xml_node(doc, metadata, root_key, data[root_key])
+
+        xmlns = node.getAttribute('xmlns')
+        if not xmlns and self.default_xmlns:
+            node.setAttribute('xmlns', self.default_xmlns)
+
+        return node.toprettyxml(indent='', newl='')
+
+    def _to_xml_node(self, doc, metadata, nodename, data):
+        """Recursive method to convert data members to XML nodes."""
+        result = doc.createElement(nodename)
+
+        # Set the xml namespace if one is specified
+        # TODO(justinsb): We could also use prefixes on the keys
+        xmlns = metadata.get('xmlns', None)
+        if xmlns:
+            result.setAttribute('xmlns', xmlns)
+        if type(data) is list:
+            collections = metadata.get('list_collections', {})
+            if nodename in collections:
+                metadata = collections[nodename]
+                for item in data:
+                    node = doc.createElement(metadata['item_name'])
+                    node.setAttribute(metadata['item_key'], str(item))
+                    result.appendChild(node)
+                return result
+            singular = metadata.get('plurals', {}).get(nodename, None)
+            if singular is None:
+                if nodename.endswith('s'):
+                    singular = nodename[:-1]
+                else:
+                    singular = 'item'
+            for item in data:
+                node = self._to_xml_node(doc, metadata, singular, item)
+                result.appendChild(node)
+        elif type(data) is dict:
+            collections = metadata.get('dict_collections', {})
+            if nodename in collections:
+                metadata = collections[nodename]
+                for k, v in data.items():
+                    node = doc.createElement(metadata['item_name'])
+                    node.setAttribute(metadata['item_key'], str(k))
+                    text = doc.createTextNode(str(v))
+                    node.appendChild(text)
+                    result.appendChild(node)
+                return result
+            attrs = metadata.get('attributes', {}).get(nodename, {})
+            for k, v in data.items():
+                if k in attrs:
+                    result.setAttribute(k, str(v))
+                else:
+                    node = self._to_xml_node(doc, metadata, k, v)
+                    result.appendChild(node)
+        else:
+            # Type is atom.
+            node = doc.createTextNode(str(data))
+            result.appendChild(node)
+        return result
diff --git a/quantum/common/test_lib.py b/quantum/common/test_lib.py
new file mode 100644
index 0000000..0357881
--- /dev/null
+++ b/quantum/common/test_lib.py
@@ -0,0 +1,291 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2010 OpenStack, LLC
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License");
+#    you may not use this file except in compliance with the License.
+#    You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS,
+#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#    See the License for the specific language governing permissions and
+#    limitations under the License.
+
+# Colorizer Code is borrowed from Twisted:
+# Copyright (c) 2001-2010 Twisted Matrix Laboratories.
+#
+#    Permission is hereby granted, free of charge, to any person obtaining
+#    a copy of this software and associated documentation files (the
+#    "Software"), to deal in the Software without restriction, including
+#    without limitation the rights to use, copy, modify, merge, publish,
+#    distribute, sublicense, and/or sell copies of the Software, and to
+#    permit persons to whom the Software is furnished to do so, subject to
+#    the following conditions:
+#
+#    The above copyright notice and this permission notice shall be
+#    included in all copies or substantial portions of the Software.
+#
+#    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+#    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+#    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+#    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+#    LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+#    OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+#    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import gettext
+import os
+import unittest
+import sys
+import logging
+
+from nose import result
+from nose import core
+from nose import config
+
+
+class _AnsiColorizer(object):
+    """
+    A colorizer is an object that loosely wraps around a stream, allowing
+    callers to write text to the stream in a particular color.
+
+    Colorizer classes must implement C{supported()} and C{write(text, color)}.
+    """
+    _colors = dict(black=30, red=31, green=32, yellow=33,
+                   blue=34, magenta=35, cyan=36, white=37)
+
+    def __init__(self, stream):
+        self.stream = stream
+
+    def supported(cls, stream=sys.stdout):
+        """
+        A class method that returns True if the current platform supports
+        coloring terminal output using this method. Returns False otherwise.
+        """
+        if not stream.isatty():
+            return False  # auto color only on TTYs
+        try:
+            import curses
+        except ImportError:
+            return False
+        else:
+            try:
+                try:
+                    return curses.tigetnum("colors") > 2
+                except curses.error:
+                    curses.setupterm()
+                    return curses.tigetnum("colors") > 2
+            except:
+                raise
+                # guess false in case of error
+                return False
+    supported = classmethod(supported)
+
+    def write(self, text, color):
+        """
+        Write the given text to the stream in the given color.
+
+        @param text: Text to be written to the stream.
+
+        @param color: A string label for a color. e.g. 'red', 'white'.
+        """
+        color = self._colors[color]
+        self.stream.write('\x1b[%s;1m%s\x1b[0m' % (color, text))
+
+
+class _Win32Colorizer(object):
+    """
+    See _AnsiColorizer docstring.
+    """
+    def __init__(self, stream):
+        from win32console import GetStdHandle, STD_OUT_HANDLE, \
+             FOREGROUND_RED, FOREGROUND_BLUE, FOREGROUND_GREEN, \
+             FOREGROUND_INTENSITY
+        red, green, blue, bold = (FOREGROUND_RED, FOREGROUND_GREEN,
+                                  FOREGROUND_BLUE, FOREGROUND_INTENSITY)
+        self.stream = stream
+        self.screenBuffer = GetStdHandle(STD_OUT_HANDLE)
+        self._colors = {
+            'normal': red | green | blue,
+            'red': red | bold,
+            'green': green | bold,
+            'blue': blue | bold,
+            'yellow': red | green | bold,
+            'magenta': red | blue | bold,
+            'cyan': green | blue | bold,
+            'white': red | green | blue | bold}
+
+    def supported(cls, stream=sys.stdout):
+        try:
+            import win32console
+            screenBuffer = win32console.GetStdHandle(
+                win32console.STD_OUT_HANDLE)
+        except ImportError:
+            return False
+        import pywintypes
+        try:
+            screenBuffer.SetConsoleTextAttribute(
+                win32console.FOREGROUND_RED |
+                win32console.FOREGROUND_GREEN |
+                win32console.FOREGROUND_BLUE)
+        except pywintypes.error:
+            return False
+        else:
+            return True
+    supported = classmethod(supported)
+
+    def write(self, text, color):
+        color = self._colors[color]
+        self.screenBuffer.SetConsoleTextAttribute(color)
+        self.stream.write(text)
+        self.screenBuffer.SetConsoleTextAttribute(self._colors['normal'])
+
+
+class _NullColorizer(object):
+    """
+    See _AnsiColorizer docstring.
+    """
+    def __init__(self, stream):
+        self.stream = stream
+
+    def supported(cls, stream=sys.stdout):
+        return True
+    supported = classmethod(supported)
+
+    def write(self, text, color):
+        self.stream.write(text)
+
+
+class QuantumTestResult(result.TextTestResult):
+    def __init__(self, *args, **kw):
+        result.TextTestResult.__init__(self, *args, **kw)
+        self._last_case = None
+        self.colorizer = None
+        # NOTE(vish, tfukushima): reset stdout for the terminal check
+        stdout = sys.__stdout__
+        sys.stdout = sys.__stdout__
+        for colorizer in [_Win32Colorizer, _AnsiColorizer, _NullColorizer]:
+            if colorizer.supported():
+                self.colorizer = colorizer(self.stream)
+                break
+        sys.stdout = stdout
+
+    def getDescription(self, test):
+        return str(test)
+
+    # NOTE(vish, tfukushima): copied from unittest with edit to add color
+    def addSuccess(self, test):
+        unittest.TestResult.addSuccess(self, test)
+        if self.showAll:
+            self.colorizer.write("OK", 'green')
+            self.stream.writeln()
+        elif self.dots:
+            self.stream.write('.')
+            self.stream.flush()
+
+    # NOTE(vish, tfukushima): copied from unittest with edit to add color
+    def addFailure(self, test, err):
+        unittest.TestResult.addFailure(self, test, err)
+        if self.showAll:
+            self.colorizer.write("FAIL", 'red')
+            self.stream.writeln()
+        elif self.dots:
+            self.stream.write('F')
+            self.stream.flush()
+
+    # NOTE(vish, tfukushima): copied from unittest with edit to add color
+    def addError(self, test, err):
+        """Overrides normal addError to add support for errorClasses.
+        If the exception is a registered class, the error will be added
+        to the list for that class, not errors.
+        """
+        stream = getattr(self, 'stream', None)
+        ec, ev, tb = err
+        try:
+            exc_info = self._exc_info_to_string(err, test)
+        except TypeError:
+            # This is for compatibility with Python 2.3.
+            exc_info = self._exc_info_to_string(err)
+        for cls, (storage, label, isfail) in self.errorClasses.items():
+            if result.isclass(ec) and issubclass(ec, cls):
+                if isfail:
+                    test.passwd = False
+                storage.append((test, exc_info))
+                # Might get patched into a streamless result
+                if stream is not None:
+                    if self.showAll:
+                        message = [label]
+                        detail = result._exception_details(err[1])
+                        if detail:
+                            message.append(detail)
+                        stream.writeln(": ".join(message))
+                    elif self.dots:
+                        stream.write(label[:1])
+                return
+        self.errors.append((test, exc_info))
+        test.passed = False
+        if stream is not None:
+            if self.showAll:
+                self.colorizer.write("ERROR", 'red')
+                self.stream.writeln()
+            elif self.dots:
+                stream.write('E')
+
+    def startTest(self, test):
+        unittest.TestResult.startTest(self, test)
+        current_case = test.test.__class__.__name__
+
+        if self.showAll:
+            if current_case != self._last_case:
+                self.stream.writeln(current_case)
+                self._last_case = current_case
+            #NOTE(salvatore-orlando):
+            #slightly changed in order to print test case class
+            #together with unit test name
+            self.stream.write(
+                '    %s' % str(test.test).ljust(60))
+            self.stream.flush()
+
+
+class QuantumTestRunner(core.TextTestRunner):
+    def _makeResult(self):
+        return QuantumTestResult(self.stream,
+                              self.descriptions,
+                              self.verbosity,
+                              self.config)
+
+
+def run_tests(c=None):
+    logger = logging.getLogger()
+    hdlr = logging.StreamHandler()
+    formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
+    hdlr.setFormatter(formatter)
+    logger.addHandler(hdlr)
+    logger.setLevel(logging.DEBUG)
+
+    # NOTE(bgh): I'm not entirely sure why but nose gets confused here when
+    # calling run_tests from a plugin directory run_tests.py (instead of the
+    # main run_tests.py).  It will call run_tests with no arguments and the
+    # testing of run_tests will fail (though the plugin tests will pass).  For
+    # now we just return True to let the run_tests test pass.
+    if not c:
+        return True
+
+    runner = QuantumTestRunner(stream=c.stream,
+                            verbosity=c.verbosity,
+                            config=c)
+    return not core.run(config=c, testRunner=runner)
+
+# describes parameters used by different unit/functional tests
+# a plugin-specific testing mechanism should import this dictionary
+# and override the values in it if needed (e.g., run_tests.py in
+# quantum/plugins/openvswitch/ )
+test_config = {
+    "plugin_name": "quantum.plugins.sample.SamplePlugin.FakePlugin",
+    "default_net_op_status": "UP",
+    "default_port_op_status": "UP",
+}
diff --git a/quantum/common/utils.py b/quantum/common/utils.py
new file mode 100644
index 0000000..1d425a0
--- /dev/null
+++ b/quantum/common/utils.py
@@ -0,0 +1,268 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2011, Nicira Networks, Inc.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+#
+# Borrowed from nova code base, more utilities will be added/borrowed as and
+# when needed.
+# @author: Somik Behera, Nicira Networks, Inc.
+
+"""Utilities and helper functions."""
+
+import ConfigParser
+import datetime
+import exceptions as exception
+import inspect
+import logging
+import os
+import random
+import subprocess
+import socket
+import sys
+import base64
+import functools
+import json
+import re
+import string
+import struct
+import time
+import types
+
+from quantum.common import flags
+from quantum.common import exceptions as exception
+from quantum.common.exceptions import ProcessExecutionError
+
+
+def import_class(import_str):
+    """Returns a class from a string including module and class."""
+    mod_str, _sep, class_str = import_str.rpartition('.')
+    try:
+        __import__(mod_str)
+        return getattr(sys.modules[mod_str], class_str)
+    except (ImportError, ValueError, AttributeError), exc:
+        print(('Inner Exception: %s'), exc)
+        raise exception.ClassNotFound(class_name=class_str)
+
+
+def import_object(import_str):
+    """Returns an object including a module or module and class."""
+    try:
+        __import__(import_str)
+        return sys.modules[import_str]
+    except ImportError:
+        cls = import_class(import_str)
+        return cls()
+
+
+def to_primitive(value):
+    if type(value) is type([]) or type(value) is type((None,)):
+        o = []
+        for v in value:
+            o.append(to_primitive(v))
+        return o
+    elif type(value) is type({}):
+        o = {}
+        for k, v in value.iteritems():
+            o[k] = to_primitive(v)
+        return o
+    elif isinstance(value, datetime.datetime):
+        return str(value)
+    elif hasattr(value, 'iteritems'):
+        return to_primitive(dict(value.iteritems()))
+    elif hasattr(value, '__iter__'):
+        return to_primitive(list(value))
+    else:
+        return value
+
+
+def dumps(value):
+    try:
+        return json.dumps(value)
+    except TypeError:
+        pass
+    return json.dumps(to_primitive(value))
+
+
+def loads(s):
+    return json.loads(s)
+
+TIME_FORMAT = "%Y-%m-%dT%H:%M:%SZ"
+FLAGS = flags.FLAGS
+
+
+def int_from_bool_as_string(subject):
+    """
+    Interpret a string as a boolean and return either 1 or 0.
+
+    Any string value in:
+        ('True', 'true', 'On', 'on', '1')
+    is interpreted as a boolean True.
+
+    Useful for JSON-decoded stuff and config file parsing
+    """
+    return bool_from_string(subject) and 1 or 0
+
+
+def bool_from_string(subject):
+    """
+    Interpret a string as a boolean.
+
+    Any string value in:
+        ('True', 'true', 'On', 'on', '1')
+    is interpreted as a boolean True.
+
+    Useful for JSON-decoded stuff and config file parsing
+    """
+    if type(subject) == type(bool):
+        return subject
+    if hasattr(subject, 'startswith'):  # str or unicode...
+        if subject.strip().lower() in ('true', 'on', '1'):
+            return True
+    return False
+
+
+def fetchfile(url, target):
+    logging.debug("Fetching %s" % url)
+#    c = pycurl.Curl()
+#    fp = open(target, "wb")
+#    c.setopt(c.URL, url)
+#    c.setopt(c.WRITEDATA, fp)
+#    c.perform()
+#    c.close()
+#    fp.close()
+    execute("curl --fail %s -o %s" % (url, target))
+
+
+def execute(cmd, process_input=None, addl_env=None, check_exit_code=True):
+    logging.debug("Running cmd: %s", cmd)
+    env = os.environ.copy()
+    if addl_env:
+        env.update(addl_env)
+    obj = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE,
+        stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env)
+    result = None
+    if process_input != None:
+        result = obj.communicate(process_input)
+    else:
+        result = obj.communicate()
+    obj.stdin.close()
+    if obj.returncode:
+        logging.debug("Result was %s" % (obj.returncode))
+        if check_exit_code and obj.returncode != 0:
+            (stdout, stderr) = result
+            raise ProcessExecutionError(exit_code=obj.returncode,
+                                        stdout=stdout,
+                                        stderr=stderr,
+                                        cmd=cmd)
+    return result
+
+
+def abspath(s):
+    return os.path.join(os.path.dirname(__file__), s)
+
+
+# TODO(sirp): when/if utils is extracted to common library, we should remove
+# the argument's default.
+#def default_flagfile(filename='nova.conf'):
+def default_flagfile(filename='quantum.conf'):
+    for arg in sys.argv:
+        if arg.find('flagfile') != -1:
+            break
+    else:
+        if not os.path.isabs(filename):
+            # turn relative filename into an absolute path
+            script_dir = os.path.dirname(inspect.stack()[-1][1])
+            filename = os.path.abspath(os.path.join(script_dir, filename))
+        if os.path.exists(filename):
+            sys.argv = \
+                sys.argv[:1] + ['--flagfile=%s' % filename] + sys.argv[1:]
+
+
+def debug(arg):
+    logging.debug('debug in callback: %s', arg)
+    return arg
+
+
+def runthis(prompt, cmd, check_exit_code=True):
+    logging.debug("Running %s" % (cmd))
+    exit_code = subprocess.call(cmd.split(" "))
+    logging.debug(prompt % (exit_code))
+    if check_exit_code and exit_code != 0:
+        raise ProcessExecutionError(exit_code=exit_code,
+                                    stdout=None,
+                                    stderr=None,
+                                    cmd=cmd)
+
+
+def generate_uid(topic, size=8):
+    return '%s-%s' % (topic, ''.join(
+        [random.choice('01234567890abcdefghijklmnopqrstuvwxyz')
+         for x in xrange(size)]))
+
+
+def generate_mac():
+    mac = [0x02, 0x16, 0x3e, random.randint(0x00, 0x7f),
+           random.randint(0x00, 0xff), random.randint(0x00, 0xff)]
+    return ':'.join(map(lambda x: "%02x" % x, mac))
+
+
+def last_octet(address):
+    return int(address.split(".")[-1])
+
+
+def isotime(at=None):
+    if not at:
+        at = datetime.datetime.utcnow()
+    return at.strftime(TIME_FORMAT)
+
+
+def parse_isotime(timestr):
+    return datetime.datetime.strptime(timestr, TIME_FORMAT)
+
+
+def get_plugin_from_config(file="config.ini"):
+        Config = ConfigParser.ConfigParser()
+        Config.read(file)
+        return Config.get("PLUGIN", "provider")
+
+
+class LazyPluggable(object):
+    """A pluggable backend loaded lazily based on some value."""
+
+    def __init__(self, pivot, **backends):
+        self.__backends = backends
+        self.__pivot = pivot
+        self.__backend = None
+
+    def __get_backend(self):
+        if not self.__backend:
+            backend_name = self.__pivot.value
+            if backend_name not in self.__backends:
+                raise exception.Error('Invalid backend: %s' % backend_name)
+
+            backend = self.__backends[backend_name]
+            if type(backend) == type(tuple()):
+                name = backend[0]
+                fromlist = backend[1]
+            else:
+                name = backend
+                fromlist = backend
+
+            self.__backend = __import__(name, None, None, fromlist)
+            logging.info('backend %s', self.__backend)
+        return self.__backend
+
+    def __getattr__(self, key):
+        backend = self.__get_backend()
+        return getattr(backend, key)
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..f72c0a4
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,12 @@
+[nosetests]
+# NOTE(jkoelker) To run the test suite under nose install the following
+#                coverage http://pypi.python.org/pypi/coverage
+#                tissue http://pypi.python.org/pypi/tissue (pep8 checker)
+#                openstack-nose https://github.com/jkoelker/openstack-nose
+verbosity=2
+detailed-errors=1
+with-openstack=1
+openstack-red=0.05
+openstack-yellow=0.025
+openstack-show-elapsed=1
+
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..c840644
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,95 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2011 Citrix Systems
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+try:
+    from setuptools import setup, find_packages
+except ImportError:
+    from ez_setup import use_setuptools
+    use_setuptools()
+    from setuptools import setup, find_packages
+
+import os
+import subprocess
+import version
+
+def run_git_command(cmd):
+    output = subprocess.Popen(["/bin/sh", "-c", cmd],
+                              stdout=subprocess.PIPE)
+    return output.communicate()[0].strip()
+
+if os.path.isdir('.git'):
+    branch_nick_cmd = 'git branch | grep -Ei "\* (.*)" | cut -f2 -d" "'
+    branch_nick = run_git_command(branch_nick_cmd)
+    revid_cmd = "git --no-pager log --max-count=1 | cut -f2 -d' ' | head -1"
+    revid = run_git_command(revid_cmd)
+    revno_cmd = "git --no-pager log --oneline | wc -l"
+    revno = run_git_command(revno_cmd)
+    with open("quantum/vcsversion.py", 'w') as version_file:
+        version_file.write("""
+# This file is automatically generated by setup.py, So don't edit it. :)
+version_info = {
+    'branch_nick': '%s',
+    'revision_id': '%s',
+    'revno': %s
+}
+""" % (branch_nick, revid, revno))
+
+Name = 'quantum-client'
+Url = "https://launchpad.net/quantum"
+Version = version.canonical_version_string()
+License = 'Apache License 2.0'
+Author = 'Netstack'
+AuthorEmail = 'netstack@lists.launchpad.net'
+Maintainer = ''
+Summary = 'Client functionalities for Quantum'
+ShortDescription = Summary
+Description = Summary
+
+requires = [
+]
+
+EagerResources = [
+]
+
+ProjectScripts = [
+]
+
+PackageData = {
+}
+
+
+setup(
+    name=Name,
+    version=Version,
+    url=Url,
+    author=Author,
+    author_email=AuthorEmail,
+    description=ShortDescription,
+    long_description=Description,
+    license=License,
+    scripts=ProjectScripts,
+    install_requires=requires,
+    include_package_data=False,
+    packages=["quantum.client","quantum.common"],
+    package_data=PackageData,
+    eager_resources=EagerResources,
+    entry_points={
+        'console_scripts': [
+            'quantum = quantum.client.cli:main'
+        ]
+    },
+)
diff --git a/tools/pip-requires b/tools/pip-requires
new file mode 100644
index 0000000..cd11114
--- /dev/null
+++ b/tools/pip-requires
@@ -0,0 +1,19 @@
+Paste
+PasteDeploy
+Routes>=1.12.3
+distribute>=0.6.24
+eventlet>=0.9.12
+lxml
+python-gflags
+simplejson
+sqlalchemy
+webob
+
+coverage
+nose
+nosexcover
+pep8==0.6.1
+tissue
+
+-e git+https://review.openstack.org/p/openstack-dev/openstack-nose.git#egg=openstack.nose_plugin
+-e git+https://review.openstack.org/p/openstack/quantum#egg=quantum-dev
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..7e73e93
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,7 @@
+[tox]
+envlist = py26,py27
+
+[testenv]
+deps = -r{toxinidir}/tools/pip-requires
+commands = nosetests
+
diff --git a/version.py b/version.py
new file mode 100644
index 0000000..a108bb8
--- /dev/null
+++ b/version.py
@@ -0,0 +1,46 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+#    Copyright 2011 OpenStack LLC
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+try:
+    from quantum.vcsversion import version_info
+except ImportError:
+    version_info = {'branch_nick': u'LOCALBRANCH',
+                    'revision_id': 'LOCALREVISION',
+                    'revno': 0}
+
+QUANTUM_VERSION = ['2012', '1', None]
+YEAR, COUNT, REVSISION = QUANTUM_VERSION
+
+FINAL = False   # This becomes true at Release Candidate time
+
+
+def canonical_version_string():
+    return '.'.join(filter(None, QUANTUM_VERSION))
+
+
+def version_string():
+    if FINAL:
+        return canonical_version_string()
+    else:
+        return '%s-dev' % (canonical_version_string(),)
+
+
+def vcs_version_string():
+    return "%s:%s" % (version_info['branch_nick'], version_info['revision_id'])
+
+
+def version_string_with_vcs():
+    return "%s-%s" % (canonical_version_string(), vcs_version_string())