def topicsearch(query):
global topic_searcher_, LAST_QUERY, LAST_RESPONSE
if DEBUG:
print "Raw Query: ", query
analyzer = PerFieldAnalyzerWrapper(StandardAnalyzer(Version.LUCENE_CURRENT))
analyzer.addAnalyzer("loc", KeywordAnalyzer(Version.LUCENE_CURRENT))
#analyzer = StandardAnalyzer(Version.LUCENE_CURRENT)
parsed_query = process_query(query)
if parsed_query is None:
return ""
#create query for lucene
real_query = text_query = parsed_query["text_query"]
parsed_query["real_query"] = real_query
if DEBUG:
print "Real Query: ", real_query
if LAST_QUERY == real_query:
return LAST_RESPONSE
#parse query using lucene parser and get docs
p_query = QueryParser(Version.LUCENE_CURRENT, "text", analyzer).parse(real_query)
print str(p_query)
scoreDocs = topic_searcher_.search(p_query, 500).scoreDocs
print "%s total matching documents." % len(scoreDocs)
#rank results
experts = []
rankedDocs = rankDocs_topic(parsed_query, topic_searcher_, scoreDocs)
for i in rankedDocs:
if parsed_query["profile"] == "yes":
experts.append({"u": i["user"], "d": i["details"],
"p": i["profile"]})
else:
experts.append({"u": i["user"], "d": i["details"]})
response = {"sid": str(uuid.uuid1()), "es": experts}
if "with_request" in parsed_query and parsed_query["with_request"] == "yes":
response = {"q": parsed_query, "e": experts}
if "user_study" in parsed_query and parsed_query["user_study"] == "yes":
#write session to db
session = {"q": text_query, "l": parsed_query["location"],
"_id": response["sid"], "ur": {}}
conn = Connection("wheezy.cs.tamu.edu", 27017)
db = conn["ole_evaluation"]
db["user_response"].insert(session)
#print response
LAST_QUERY = real_query
LAST_RESPONSE = cjson.encode(response)
#return cjson.encode(response)
return LAST_RESPONSE
def testPerFieldAnalyzer(self):
analyzer = PerFieldAnalyzerWrapper(SimpleAnalyzer())
analyzer.addAnalyzer("partnum", KeywordAnalyzer())
query = QueryParser(Version.LUCENE_CURRENT, "description",
analyzer).parse("partnum:Q36 AND SPACE")
scoreDocs = self.searcher.search(query, 50).scoreDocs
#self.assertEqual("+partnum:Q36 +space", query.toString("description"))
self.assertEqual(1, len(scoreDocs), "doc found!")
def testPerFieldAnalyzer(self):
analyzer = PerFieldAnalyzerWrapper(SimpleAnalyzer())
analyzer.addAnalyzer("partnum", KeywordAnalyzer())
query = QueryParser(Version.LUCENE_CURRENT, "description",
analyzer).parse("partnum:Q36 AND SPACE")
scoreDocs = self.searcher.search(query, 50).scoreDocs
#self.assertEqual("+partnum:Q36 +space", query.toString("description"))
self.assertEqual(1, len(scoreDocs), "doc found!")
def build_perfield_analyzer(index_fields):
"""
This function creates a PerFieldAnalyzerWrapper which allows us
to associate different Lucene Analyzers to specific fields in our
Lucene index.
"""
analyzer = PerFieldAnalyzerWrapper(StandardAnalyzer(Version.LUCENE_CURRENT))
for (index_name, analyzer_type) in index_fields.iteritems():
if analyzer_type == "standard":
continue
analyzer.addAnalyzer(index_name, ANALYZER_LOOKUP.get(analyzer_type))
return analyzer
def build_perfield_analyzer(index_fields):
"""
This function creates a PerFieldAnalyzerWrapper which allows us
to associate different Lucene Analyzers to specific fields in our
Lucene index.
"""
analyzer = PerFieldAnalyzerWrapper(StandardAnalyzer(
Version.LUCENE_CURRENT))
for (index_name, analyzer_type) in index_fields.iteritems():
if analyzer_type == "standard":
continue
analyzer.addAnalyzer(index_name, ANALYZER_LOOKUP.get(analyzer_type))
return analyzer
def testAnalyzer(self):
analyzer = StandardAnalyzer(Version.LUCENE_CURRENT)
queryString = "category:/philosophy/eastern"
query = QueryParser(Version.LUCENE_CURRENT,
"contents", analyzer).parse(queryString)
self.assertEqual("category:\"philosophy eastern\"",
query.toString("contents"), "path got split, yikes!")
perFieldAnalyzer = PerFieldAnalyzerWrapper(analyzer)
perFieldAnalyzer.addAnalyzer("category", WhitespaceAnalyzer())
query = QueryParser(Version.LUCENE_CURRENT,
"contents", perFieldAnalyzer).parse(queryString)
self.assertEqual("category:/philosophy/eastern",
query.toString("contents"),
"leave category field alone")
def testAnalyzer(self):
analyzer = StandardAnalyzer(Version.LUCENE_CURRENT)
queryString = "category:/philosophy/eastern"
parser = QueryParser(Version.LUCENE_CURRENT, "contents", analyzer)
parser.setAutoGeneratePhraseQueries(True)
query = parser.parse(queryString)
self.assertEqual("category:\"philosophy eastern\"",
query.toString("contents"), "path got split, yikes!")
perFieldAnalyzer = PerFieldAnalyzerWrapper(analyzer)
perFieldAnalyzer.addAnalyzer("category", WhitespaceAnalyzer())
query = QueryParser(Version.LUCENE_CURRENT, "contents",
perFieldAnalyzer).parse(queryString)
self.assertEqual("category:/philosophy/eastern",
query.toString("contents"),
"leave category field alone")
# running as foreground process
#indexer.setDaemon(True)
#indexer.start()
#print 'Starting Indexer in background...'
# If return from Searcher, then call the signal handler to clean up the indexer cleanly
quit_gracefully()
"""
# what directory we want to index
directoryToWalk = dir_user_location_map
env=lucene.initVM()
# For now I just use the StandardAnalyzer, but you can change this
#analyzer = StandardAnalyzer(Version.LUCENE_CURRENT)
analyzer = PerFieldAnalyzerWrapper(StandardAnalyzer(Version.LUCENE_CURRENT))
analyzer.addAnalyzer("loc", UnderscoreSeparatorAnalyzer(Version.LUCENE_CURRENT))
"""
#location indexer
LOCATION_INDEX_STORE_DIR = location_index_store_dir
print location_index_store_dir
location_index_dir = createIndexDir(LOCATION_INDEX_STORE_DIR)
# we will need a writer
writer = IndexWriter(location_index_dir, analyzer, True,
IndexWriter.MaxFieldLength.LIMITED)
writer.setMaxFieldLength(1048576)
# and start the indexer
location_indexer = LocationIndexer(LOCATION_INDEX_STORE_DIR, writer, directoryToWalk)
location_indexer.run()
writer.close()
def search(query=None):
global location_searcher_, LAST_QUERY, LAST_RESPONSE
if DEBUG:
print "Raw Query: ", query
analyzer = PerFieldAnalyzerWrapper(StandardAnalyzer(Version.LUCENE_CURRENT))
analyzer.addAnalyzer("loc", KeywordAnalyzer(Version.LUCENE_CURRENT))
#analyzer = StandardAnalyzer(Version.LUCENE_CURRENT)
parsed_query = process_query(query, "l")
if parsed_query is None:
return ""
#create query for lucene
real_query = ""
locations = {}
if "epsilon" in parsed_query:
locations = get_nearby_locations(parsed_query["location"], parsed_query["epsilon"])
else:
locations = get_nearby_locations(parsed_query["location"], 0)
parsed_query["locations"] = locations
if len(locations.keys()) == 1:
real_query = real_query + "\"" + parsed_query["location"] + "\""
else:
"""
locations_query = []
for l in locations:
locations_query.append(l + "^" + str(locations[l]["dwt"]))
real_query = real_query + " OR ".join(locations_query)
"""
real_query = real_query + " OR ".join(["\"" + l + "\"" for l in locations])
parsed_query["real_query"] = real_query
if DEBUG:
print "Lucene Query: ", real_query
if LAST_QUERY == real_query:
return LAST_RESPONSE
#parse query using lucene parser and get docs
p_query = QueryParser(Version.LUCENE_CURRENT, "loc", analyzer).parse(real_query)
scoreDocs = location_searcher_.search(p_query, 500).scoreDocs
print "%s total matching documents." % len(scoreDocs)
#rank results
experts = []
rankedDocs = rankDocs(parsed_query, location_searcher_, scoreDocs)
for i in rankedDocs:
if parsed_query["profile"] == "yes":
experts.append({"u": i["user"], "d": i["details"],
"p": i["profile"], "t": i["tweets"]})
else:
experts.append({"u": i["user"], "d": i["details"]})
response = {"sid": str(uuid.uuid1()), "es": experts}
if "with_request" in parsed_query and parsed_query["with_request"] == "yes":
response = {"q": parsed_query, "e": experts}
if "user_study" in parsed_query and parsed_query["user_study"] == "yes":
#write session to db
session = {"l": parsed_query["location"],
"_id": response["sid"], "ur": {}}
conn = Connection("wheezy.cs.tamu.edu", 27017)
db = conn["ole_evaluation"]
db["user_response"].insert(session)
LAST_QUERY = real_query
LAST_RESPONSE = cjson.encode(response)
#return cjson.encode(response)
return LAST_RESPONSE
