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# Copyright (c) 2013 Mirantis 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 saharaclient.api import parameters as params
class Helpers(object):
def __init__(self, sahara_client):
self.sahara = sahara_client
self.plugins = self.sahara.plugins
def _get_node_processes(self, plugin):
processes = []
for proc_lst in plugin.node_processes.values():
processes += proc_lst
return [(proc_name, proc_name) for proc_name in processes]
def get_node_processes(self, plugin_name, hadoop_version):
plugin = self.plugins.get_version_details(plugin_name, hadoop_version)
return self._get_node_processes(plugin)
def _extract_parameters(self, configs, scope, applicable_target):
parameters = []
for config in configs:
if (config['scope'] == scope and
config['applicable_target'] == applicable_target):
parameters.append(params.Parameter(config))
return parameters
def get_cluster_general_configs(self, plugin_name, hadoop_version):
plugin = self.plugins.get_version_details(plugin_name, hadoop_version)
return self._extract_parameters(plugin.configs, 'cluster', "general")
def get_general_node_group_configs(self, plugin_name, hadoop_version):
plugin = self.plugins.get_version_details(plugin_name, hadoop_version)
return self._extract_parameters(plugin.configs, 'node', 'general')
def get_targeted_node_group_configs(self, plugin_name, hadoop_version):
plugin = self.plugins.get_version_details(plugin_name, hadoop_version)
parameters = dict()
for service in plugin.node_processes.keys():
parameters[service] = self._extract_parameters(plugin.configs,
'node', service)
return parameters
def get_targeted_cluster_configs(self, plugin_name, hadoop_version):
plugin = self.plugins.get_version_details(plugin_name, hadoop_version)
parameters = dict()
for service in plugin.node_processes.keys():
parameters[service] = self._extract_parameters(plugin.configs,
'cluster', service)
return parameters
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