Add resources and meters to the v2 shell

This also moves the build_url function to a common file.

Change-Id: Ia94f9fa37c83fc756a395a918ad254111951f67b
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>

7 files changed, 184 insertions, 28 deletions

diff --git a/ceilometerclient/v2/client.py b/ceilometerclient/v2/client.py
index 82b29e0..71622a6 100644
--- a/ceilometerclient/v2/client.py
+++ b/ceilometerclient/v2/client.py
@@ -14,6 +14,8 @@
 #    under the License.
 
 from ceilometerclient.common import http
+from ceilometerclient.v2 import meters
+from ceilometerclient.v2 import resources
 from ceilometerclient.v2 import samples
 from ceilometerclient.v2 import statistics
 
@@ -31,5 +33,7 @@ class Client(http.HTTPClient):
     def __init__(self, *args, **kwargs):
         """ Initialize a new client for the Ceilometer v1 API. """
         super(Client, self).__init__(*args, **kwargs)
+        self.meters = meters.MeterManager(self)
         self.samples = samples.SampleManager(self)
         self.statistics = statistics.StatisticsManager(self)
+        self.resources = resources.ResourceManager(self)
diff --git a/ceilometerclient/v2/meters.py b/ceilometerclient/v2/meters.py
new file mode 100644
index 0000000..baa7cbd
--- /dev/null
+++ b/ceilometerclient/v2/meters.py
@@ -0,0 +1,31 @@
+# -*- encoding: utf-8 -*-
+#
+# Copyright © 2013 Red Hat, 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.
+
+from ceilometerclient.common import base
+from ceilometerclient.v2 import options
+
+
+class Meter(base.Resource):
+    def __repr__(self):
+        return "<Meter %s>" % self._info
+
+
+class MeterManager(base.Manager):
+    resource_class = Meter
+
+    def list(self, q=None):
+        path = '/v2/meters'
+        return self._list(options.build_url(path, q))
diff --git a/ceilometerclient/v2/options.py b/ceilometerclient/v2/options.py
new file mode 100644
index 0000000..debf6b2
--- /dev/null
+++ b/ceilometerclient/v2/options.py
@@ -0,0 +1,83 @@
+#
+#    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.
+
+import re
+import urllib
+
+
+def build_url(path, q):
+    '''
+    This converts from a list of dict's to what the rest api needs
+    so from:
+    "[{field=this,op=le,value=34},{field=that,op=eq,value=foo}]"
+    to:
+    "?q.field=this&q.op=le&q.value=34&
+      q.field=that&q.op=eq&q.value=foo"
+    '''
+    if q:
+        query_params = {'q.field': [],
+                        'q.value': [],
+                        'q.op': []}
+
+        for query in q:
+            for name in ['field', 'op', 'value']:
+                query_params['q.%s' % name].append(query.get(name, ''))
+
+        path += "?" + urllib.urlencode(query_params, doseq=True)
+
+    return path
+
+
+def cli_to_array(cli_query):
+    '''
+    This converts from the cli list of queries to what is required
+    by the python api.
+    so from:
+    "this<=34;that=foo"
+    to
+    "[{field=this,op=le,value=34},{field=that,op=eq,value=foo}]"
+    '''
+    if cli_query is None:
+        return None
+
+    op_lookup = {'!=': 'ne',
+                 '>=': 'ge',
+                 '<=': 'le',
+                 '>': 'gt',
+                 '<': 'lt',
+                 '=': 'eq'}
+
+    def split_by_op(string):
+        # two character split (<=,!=)
+        fragments = re.findall(r'(\w+)([><!]=)([^ -,\t\n\r\f\v]+)', string)
+        if len(fragments) == 0:
+            #single char split (<,=)
+            fragments = re.findall(r'(\w+)([><=])([^ -,\t\n\r\f\v]+)', string)
+        return fragments
+
+    opts = []
+    queries = cli_query.split(';')
+    for q in queries:
+        frag = split_by_op(q)
+        if len(frag) > 1:
+            raise ValueError('incorrect seperator %s in query "%s"' %
+                             ('(should be ";")', q))
+        if len(frag) == 0:
+            raise ValueError('invalid query %s' % q)
+        query = frag[0]
+        opt = {}
+        opt['field'] = query[0]
+        opt['op'] = op_lookup[query[1]]
+        opt['value'] = query[2]
+        opts.append(opt)
+    return opts
diff --git a/ceilometerclient/v2/resources.py b/ceilometerclient/v2/resources.py
new file mode 100644
index 0000000..9b80671
--- /dev/null
+++ b/ceilometerclient/v2/resources.py
@@ -0,0 +1,31 @@
+# -*- encoding: utf-8 -*-
+#
+# Copyright © 2013 Red Hat, 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.
+
+from ceilometerclient.common import base
+from ceilometerclient.v2 import options
+
+
+class Resource(base.Resource):
+    def __repr__(self):
+        return "<Resource %s>" % self._info
+
+
+class ResourceManager(base.Manager):
+    resource_class = Resource
+
+    def list(self, q=None):
+        path = '/v2/resources'
+        return self._list(options.build_url(path, q))
diff --git a/ceilometerclient/v2/samples.py b/ceilometerclient/v2/samples.py
index f7e4268..11258a5 100644
--- a/ceilometerclient/v2/samples.py
+++ b/ceilometerclient/v2/samples.py
@@ -1,5 +1,3 @@
-# Copyright 2012 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
@@ -13,9 +11,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import urllib
-
 from ceilometerclient.common import base
+from ceilometerclient.v2 import options
 
 
 class Sample(base.Resource):
@@ -26,23 +23,8 @@ class Sample(base.Resource):
 class SampleManager(base.Manager):
     resource_class = Sample
 
-    @staticmethod
-    def build_url(path, q):
-        if q:
-            query_params = {'q.field': [],
-                            'q.value': [],
-                            'q.op': []}
-
-            for query in q:
-                for name in ['field', 'op', 'value']:
-                    query_params['q.%s' % name].append(query.get(name, ''))
-
-            path += "?" + urllib.urlencode(query_params, doseq=True)
-
-        return path
-
     def list(self, meter_name=None, q=None):
         path = '/v2/meters'
         if meter_name:
             path += '/' + meter_name
-        return self._list(self.build_url(path, q))
+        return self._list(options.build_url(path, q))
diff --git a/ceilometerclient/v2/shell.py b/ceilometerclient/v2/shell.py
index 524d46a..1f11dc5 100644
--- a/ceilometerclient/v2/shell.py
+++ b/ceilometerclient/v2/shell.py
@@ -1,5 +1,6 @@
+# -*- encoding: utf-8 -*-
 #
-# Copyright © 2013 Red Hat
+# Copyright © 2013 Red Hat, Inc
 #
 # Author:  Angus Salkeld <asalkeld@redhat.com>
 #
@@ -16,6 +17,7 @@
 #    under the License.
 
 from ceilometerclient.common import utils
+from ceilometerclient.v2 import options
 import ceilometerclient.exc as exc
 
 
@@ -26,7 +28,7 @@ import ceilometerclient.exc as exc
 def do_statistics(cc, args):
     '''List the statistics for this meters'''
     fields = {'meter_name': args.meter,
-              'q': args.query}
+              'q': options.cli_to_array(args.query)}
     if args.meter is None:
         raise exc.CommandError('Meter name not provided (-m <meter name>)')
     try:
@@ -50,7 +52,7 @@ def do_statistics(cc, args):
 def do_sample_list(cc, args):
     '''List the samples for this meters'''
     fields = {'meter_name': args.meter,
-              'q': args.query}
+              'q': options.cli_to_array(args.query)}
     if args.meter is None:
         raise exc.CommandError('Meter name not provided (-m <meter name>)')
     try:
@@ -64,3 +66,28 @@ def do_sample_list(cc, args):
                   'counter_volume', 'counter_unit', 'timestamp']
         utils.print_list(samples, fields, field_labels,
                          sortby=0)
+
+
+@utils.arg('-q', '--query', metavar='<QUERY>',
+           help='key[op]value; list.')
+def do_meter_list(cc, args={}):
+    '''List the user's meter'''
+    meters = cc.meters.list(q=options.cli_to_array(args.query))
+    field_labels = ['Name', 'Type', 'Unit', 'Resource ID', 'User ID',
+                    'Project ID']
+    fields = ['name', 'type', 'unit', 'resource_id', 'user_id',
+              'project_id']
+    utils.print_list(meters, fields, field_labels,
+                     sortby=0)
+
+
+@utils.arg('-q', '--query', metavar='<QUERY>',
+           help='key[op]value; list.')
+def do_resource_list(cc, args={}):
+    '''List the resources'''
+    resources = cc.resources.list(q=options.cli_to_array(args.query))
+
+    field_labels = ['Resource ID', 'Source', 'User ID', 'Project ID']
+    fields = ['resource_id', 'source', 'user_id', 'project_id']
+    utils.print_list(resources, fields, field_labels,
+                     sortby=1)
diff --git a/ceilometerclient/v2/statistics.py b/ceilometerclient/v2/statistics.py
index 9cf4198..f663942 100644
--- a/ceilometerclient/v2/statistics.py
+++ b/ceilometerclient/v2/statistics.py
@@ -1,5 +1,3 @@
-# Copyright 2012 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
@@ -13,8 +11,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from ceilometerclient.v2 import samples
 from ceilometerclient.common import base
+from ceilometerclient.v2 import options
 
 
 class Statistics(base.Resource):
@@ -22,10 +20,10 @@ class Statistics(base.Resource):
         return "<Statistics %s>" % self._info
 
 
-class StatisticsManager(samples.SampleManager):
+class StatisticsManager(base.Manager):
     resource_class = Statistics
 
     def list(self, meter_name, q=None):
-        return self._list(self.build_url(
+        return self._list(options.build_url(
             '/v2/meters/' + meter_name + '/statistics',
             q))