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plugin managers were merged

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This commit is contained in:
Volkan Şahin 2016-05-12 17:34:21 +03:00
parent a30213bf51
commit 518acdc784
1 changed files with 0 additions and 162 deletions
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opt/ahenk/base/plugin/PluginManager.py
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#!/usr/bin/python3
# -*- coding: utf-8 -*-
# Author: İsmail BAŞARAN <ismail.basaran@tubitak.gov.tr> <basaran.ismaill@gmail.com>
import imp
import os
import json
from base.Scope import Scope
from base.plugin.Plugin import Plugin
from base.plugin.PluginQueue import PluginQueue
from base.model.PluginKillSignal import PluginKillSignal
from base.model.safe_mode import SafeMode
class PluginManager(object):
"""docstring for PluginManager"""
# implement logger
def __init__(self):
super(PluginManager, self).__init__()
self.scope = Scope.getInstance()
self.configManager = self.scope.getConfigurationManager()
self.db_service = self.scope.getDbService()
self.plugins = []
self.pluginQueueDict = dict()
self.logger = self.scope.getLogger()
#TODO version?
def loadPlugins(self):
"""
This method loads plugins
"""
self.logger.info('[PluginManager] Loading plugins...')
self.plugins = []
self.logger.debug('[PluginManager] Lookup for possible plugins...')
possibleplugins = os.listdir(self.configManager.get("PLUGIN", "pluginFolderPath"))
self.logger.debug('[PluginManager] Possible plugins.. ' + str(possibleplugins))
for pname in possibleplugins:
location = os.path.join(self.configManager.get("PLUGIN", "pluginFolderPath"), pname)
if not os.path.isdir(location) or not self.configManager.get("PLUGIN", "mainModuleName") + ".py" in os.listdir(location):
self.logger.debug('It is not a plugin location ! There is no main module - ' + str(location))
continue
try:
self.loadSinglePlugin(pname)
except Exception as e:
self.logger.error('Exception occured when loading plugin ! Plugin name : ' + str(pname) + ' Exception : ' + str(e))
self.logger.info('[PluginManager] Loaded plugins successfully.')
def loadSinglePlugin(self, pluginName):
# TODO check already loaded plugin
self.pluginQueueDict[pluginName] = PluginQueue()
plugin = Plugin(pluginName, self.pluginQueueDict[pluginName])
plugin.setDaemon(True)
plugin.start()
self.plugins.append(plugin)
def findCommand(self, pluginName, commandId):
location = os.path.join(self.configManager.get("PLUGIN", "pluginFolderPath"), pluginName)
if os.path.isdir(location) and commandId + ".py" in os.listdir(location):
info = imp.find_module(commandId, [location])
return imp.load_module(commandId, *info)
else:
self.logger.warning('Command id -' + commandId + ' - not found')
return None
def processTask(self, task):
try:
if task.plugin.name.lower() in self.pluginQueueDict:
self.pluginQueueDict[task.plugin.name.lower()].put(task, 1)
except Exception as e:
# TODO update task - status to not found command
self.logger.error("[PluginManager] Exception occurred when processing task " + str(e))
def reloadPlugins(self):
#TODO
try:
self.logger.info('[PluginManager] Reloading plugins... ')
kill_sgnl = PluginKillSignal()
for p_queue in self.pluginQueueDict:
p_queue.put(kill_sgnl)
self.plugins = []
self.loadPlugins()
self.logger.info('[PluginManager] Plugin reloaded successfully.')
except Exception as e:
self.logger.error('[PluginManager] Exception occurred when reloading plugins ' + str(e))
def findPolicyModule(self, plugin_name):
location = os.path.join(self.configManager.get("PLUGIN", "pluginFolderPath"), plugin_name)
if os.path.isdir(location) and "policy.py" in os.listdir(location):
info = imp.find_module("policy", [location])
return imp.load_module("policy", *info)
else:
self.logger.warning('[PluginManager] policy.py not found Plugin Name : ' + str(plugin_name))
return None
def processPolicy(self, policy):
username = policy.get_username()
ahenk_profiles = policy.get_ahenk_profiles()
user_profiles = policy.get_user_profiles()
if ahenk_profiles is not None:
for profile in ahenk_profiles:
profile.set_username(None)
self.process_profile(profile)
if user_profiles is not None:
for profile in user_profiles:
profile.set_username(username)
self.process_profile(profile)
def process_profile(self, profile):
try:
plugin_name = profile.get_plugin().get_name()
if plugin_name in self.pluginQueueDict:
self.pluginQueueDict[plugin_name].put(profile, 1)
except Exception as e:
print("Exception occured..")
self.logger.error("Policy profile not processed " + str(profile.plugin.name))
def checkPluginExists(self, plugin_name, version=None):
criteria = ' name=\''+plugin_name+'\''
if version is not None:
criteria += ' and version=\'' + str(version) + '\''
result = self.db_service.select('plugin', 'name', criteria)
if result is None:
return False
else:
return True
def process_safe_mode(self,username):
for plugin_name in self.pluginQueueDict:
try:
self.pluginQueueDict[plugin_name].put(SafeMode(username),1)
except Exception as e:
self.logger.error('Exception occured when switching safe mode ' + str(e))
def find_safe_mode_module(self,plugin_name):
location = os.path.join(self.configManager.get("PLUGIN", "pluginFolderPath"), plugin_name)
if os.path.isdir(location) and "safe.py" in os.listdir(location):
info = imp.find_module("safe", [location])
return imp.load_module("safe", *info)
else:
self.logger.warning('[PluginManager] safe.py not found Plugin Name : ' + str(plugin_name))
return None
def reloadSinglePlugin(self, pluginName):
# Not implemented yet
pass
def checkCommandExist(self, pluginName, commandId):
# Not implemented yet
pass
def printQueueSize(self):
print("size " + str(len(self.pluginQueueDict)))