Ahenk/opt/ahenk/base/plugin/PluginManager.py
2016-03-25 17:56:15 +02:00

90 lines
3.2 KiB
Python

#!/usr/bin/python3
# -*- coding: utf-8 -*-
# Author: İsmail BAŞARAN <ismail.basaran@tubitak.gov.tr> <basaran.ismaill@gmail.com>
import imp
import os
from base.Scope import Scope
from base.plugin.Plugin import Plugin
from base.plugin.PluginQueue import PluginQueue
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):
self.plugins = []
possibleplugins = os.listdir(self.configManager.get("PLUGIN", "pluginFolderPath"))
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 - - ')
continue
try:
self.loadSinglePlugin(pname)
except Exception as e:
# TODO error log
pass
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):
# Not implemented yet
pass
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 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)))