90 wiersze
3.4 KiB
Python
90 wiersze
3.4 KiB
Python
"""
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mbed SDK
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Copyright (c) 2011-2013 ARM Limited
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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class HostTestRegistry:
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""" Simple class used to register and store
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host test plugins for further usage
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"""
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# Here we actually store all the plugins
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PLUGINS = {} # 'Plugin Name' : Plugin Object
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def print_error(self, text):
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print "Plugin load failed. Reason: %s"% text
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def register_plugin(self, plugin):
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""" Registers and stores plugin inside registry for further use.
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Method also calls plugin's setup() function to configure plugin if needed.
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Note: Different groups of plugins may demand different extra parameter. Plugins
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should be at least for one type of plugin configured with the same parameters
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because we do not know which of them will actually use particular parameter.
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"""
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# TODO:
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# - check for unique caps for specified type
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if plugin.name not in self.PLUGINS:
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if plugin.setup(): # Setup plugin can be completed without errors
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self.PLUGINS[plugin.name] = plugin
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return True
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else:
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self.print_error("%s setup failed"% plugin.name)
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else:
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self.print_error("%s already loaded"% plugin.name)
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return False
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def call_plugin(self, type, capability, *args, **kwargs):
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""" Execute plugin functionality respectively to its purpose
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"""
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for plugin_name in self.PLUGINS:
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plugin = self.PLUGINS[plugin_name]
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if plugin.type == type and capability in plugin.capabilities:
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return plugin.execute(capability, *args, **kwargs)
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return False
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def get_plugin_caps(self, type):
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""" Returns list of all capabilities for plugin family with the same type.
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If there are no capabilities empty list is returned
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"""
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result = []
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for plugin_name in self.PLUGINS:
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plugin = self.PLUGINS[plugin_name]
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if plugin.type == type:
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result.extend(plugin.capabilities)
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return sorted(result)
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def load_plugin(self, name):
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""" Used to load module from
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"""
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mod = __import__("module_%s"% name)
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return mod
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def __str__(self):
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""" User friendly printing method to show hooked plugins
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"""
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from prettytable import PrettyTable
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column_names = ['name', 'type', 'capabilities', 'stable']
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pt = PrettyTable(column_names)
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for column in column_names:
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pt.align[column] = 'l'
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for plugin_name in sorted(self.PLUGINS.keys()):
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name = self.PLUGINS[plugin_name].name
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type = self.PLUGINS[plugin_name].type
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stable = self.PLUGINS[plugin_name].stable
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capabilities = ', '.join(self.PLUGINS[plugin_name].capabilities)
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row = [name, type, capabilities, stable]
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pt.add_row(row)
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return pt.get_string()
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