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95 lines
2.8 KiB
95 lines
2.8 KiB
'''
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依靠给各个组件的 dispatch 调用接口发指令来驱动所有工作
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这是一个示例性质的原型，具体环境下需要调整
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'''
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from cppy.cp_util import *
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class DataStorageManager():
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""" Models the contents of the file """
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def __init__(self):
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self._data = []
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def dispatch(self, message):
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if message[0] == 'init':
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return self._init(message[1])
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elif message[0] == 'words':
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return self._words()
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else:
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raise Exception("Message not understood " + message[0])
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def _init(self, path_to_file):
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self._data = re_split( read_file(path_to_file) )
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def _words(self):
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return self._data
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class StopWordManager():
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""" Models the stop word filter """
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_stop_words = []
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def dispatch(self, message):
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if message[0] == 'init':
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return self._init()
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elif message[0] == 'is_stop_word':
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return self._is_stop_word(message[1])
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else:
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raise Exception("Message not understood " + message[0])
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def _init(self):
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self._stop_words = get_stopwords()
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def _is_stop_word(self, word):
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return word in self._stop_words
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class WordFrequencyManager():
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""" Keeps the word frequency data """
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_word_freqs = {}
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def dispatch(self, message):
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if message[0] == 'increment_count':
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return self._increment_count(message[1])
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elif message[0] == 'sorted':
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return self._sorted()
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else:
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raise Exception("Message not understood " + message[0])
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def _increment_count(self, word):
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self._word_freqs[word] = self._word_freqs.get(word,0) + 1
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def _sorted(self):
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return sort_dict(self._word_freqs)
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class WordFrequencyController():
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def dispatch(self, message):
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if message[0] == 'init':
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return self._init(message[1])
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elif message[0] == 'run':
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return self._run()
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else:
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raise Exception("Message not understood " + message[0])
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def _init(self, path_to_file):
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self._storage_manager = DataStorageManager()
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self._stop_word_manager = StopWordManager()
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self._word_freq_manager = WordFrequencyManager()
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self._storage_manager.dispatch(['init', path_to_file])
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self._stop_word_manager.dispatch(['init'])
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def _run(self):
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for w in self._storage_manager.dispatch(['words']):
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if not self._stop_word_manager.dispatch(['is_stop_word', w]):
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self._word_freq_manager.dispatch(['increment_count', w])
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word_freqs = self._word_freq_manager.dispatch(['sorted'])
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print_word_freqs(word_freqs)
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if __name__ == '__main__':
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wfcontroller = WordFrequencyController()
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wfcontroller.dispatch(['init', testfilepath])
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wfcontroller.dispatch(['run'])
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