# ====================================================================
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ====================================================================
import os
from lucene import \
SimpleAnalyzer, Document, QueryParser, Explanation, \
IndexSearcher, SimpleFSDirectory, File, Version
class Explainer(object):
def main(cls, argv):
if len(argv) != 3:
print "Usage: Explainer <index dir> <query>"
else:
indexDir = argv[1]
queryExpression = argv[2]
directory = SimpleFSDirectory(File(indexDir))
query = QueryParser(Version.LUCENE_CURRENT, "contents",
SimpleAnalyzer()).parse(queryExpression)
print "Query:", queryExpression
searcher = IndexSearcher(directory)
scoreDocs = searcher.search(query, 50).scoreDocs
for scoreDoc in scoreDocs:
doc = searcher.doc(scoreDoc.doc)
explanation = searcher.explain(query, scoreDoc.doc)
print "----------"
print doc["title"].encode('utf-8')
print explanation
main = classmethod(main)
if __name__ == "__main__":
import sys
Explainer.main(sys.argv)
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