root/lang/python/otolog4linux/trunk/src/plugin.py @ 2266

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Otolog Plugin Implements
"""
import os
import sys
import ihooks

__author__ = 'mattn <mattn.jp@gmail.com>'
__url__ = 'http://www.ac.cyberhome.ne.jp/~mattn/'
__date__ = "Tue, 07 Feb 2006"
__version__ = "0.04"
__credits__ = """Yasuhro Matsumoto, main developer
"""

class Plugin:
        """
        Otolog Plugin Information Class
        This class load plugins about jacket provider and player.
        """
        def __init__(self, plugin_paths):
                """
                specify plugin path.
                """
                loader = ihooks.BasicModuleLoader()
                self.modules = {}
                try:
                        for plugin_path in plugin_paths:
                                for f in os.listdir(plugin_path):
                                        name, ext = os.path.splitext(f)
                                        if ext != '.py':
                                                continue
                                        try:
                                                m = loader.find_module_in_dir(name, plugin_path)
                                                m = loader.load_module(name, m)
                                                self.modules[name] = m
                                        except Exception, e:
                                                #print e
                                                pass
                except:
                        pass

        def get_module_names(self, kind):
                """
                return server plugin names.
                """
                names = []
                for key in self.modules.keys():
                        try:
                                module = self.modules[key]
                                if kind in module.get_capability():
                                        names.append(self.modules[key].get_name())
                        except:
                                pass
                return names

        def get_module_keys(self, kind):
                """
                return server plugin keys.
                """
                keys = []
                for key in self.modules.keys():
                        try:
                                module = self.modules[key]
                                if kind in module.get_capability():
                                        keys.append(key)
                        except:
                                pass
                return keys

        def get_key(self, kind, name):
                for key in self.get_module_keys(kind):
                        try:
                                module = self.modules[key]
                                if module.get_name() == name:
                                        return key
                        except:
                                pass
                return ''

        def get_name(self, key):
                try:
                        return self.modules[key].get_name()
                except:
                        return key