def visitSEARCH_CLAUSE(self, node):
# possible children:
# CQL_QUERY
# SEARCH_TERM
# INDEX, RELATION, SEARCH_TERM
firstChild = node.children[0].name
results = CqlVisitor.visitSEARCH_CLAUSE(self, node)
if firstChild == 'SEARCH_TERM':
(unqualifiedRhs,) = results
unqualifiedTermFields = [
_formatBoost(_formatTerm(fieldname, unqualifiedRhs), boost)
for fieldname, boost in self._unqualifiedTermFields
]
if len(unqualifiedTermFields) == 1:
return unqualifiedTermFields[0]
return "(%s)" % ' OR '.join(unqualifiedTermFields)
elif firstChild == 'INDEX':
(index, (relation, boost), term) = results
if relation in ['==', 'exact']:
query = '%s:"%s"' % (index, term)
elif relation == '=':
query = _formatTerm(index, term)
elif relation in ['>', '<', '>=', '<=']:
query = _formatRangeTerm(index, relation, term)
else:
raise UnsupportedCQL("Only =, ==, exact, <, <=, > and >= are supported.")
return _formatBoost(query, boost)
else:
((query,),) = results
return query
def visitSEARCH_CLAUSE(self, node):
# possible children:
# CQL_QUERY
# SEARCH_TERM
# INDEX, RELATION, SEARCH_TERM
firstChild = node.children[0].name
results = CqlVisitor.visitSEARCH_CLAUSE(self, node)
if firstChild == 'SEARCH_TERM':
(unqualifiedRhs, ) = results
unqualifiedTermFields = [
_formatBoost(_formatTerm(fieldname, unqualifiedRhs), boost)
for fieldname, boost in self._unqualifiedTermFields
]
if len(unqualifiedTermFields) == 1:
return unqualifiedTermFields[0]
return "(%s)" % ' OR '.join(unqualifiedTermFields)
elif firstChild == 'INDEX':
(index, (relation, boost), term) = results
if relation in ['==', 'exact']:
query = '%s:"%s"' % (index, term)
elif relation == '=':
query = _formatTerm(index, term)
elif relation in ['>', '<', '>=', '<=']:
query = _formatRangeTerm(index, relation, term)
else:
raise UnsupportedCQL(
"Only =, ==, exact, <, <=, > and >= are supported.")
return _formatBoost(query, boost)
else:
((query, ), ) = results
return query
def visitSEARCH_CLAUSE(self, node):
firstChild = node.children[0].name
result = CqlVisitor.visitSEARCH_CLAUSE(self, node)
if firstChild == 'SEARCH_TERM':
self._logger(clause = result[0].lower())
elif firstChild == 'INDEX':
self._logger(clause = "%s %s %s" % (result[0], result[1], quot(result[2].lower())))
return result
def visitSCOPED_CLAUSE(self, node):
clause = CqlVisitor.visitSCOPED_CLAUSE(self, node)
if len(clause) == 1:
return clause[0]
lhs, operator, rhs = clause
query = BooleanQuery()
query.add(lhs, LHS_OCCUR[operator])
query.add(rhs, RHS_OCCUR[operator])
return query
def visitSEARCH_CLAUSE(self, node):
firstChild = node.children[0].name
result = CqlVisitor.visitSEARCH_CLAUSE(self, node)
if firstChild == 'SEARCH_TERM':
self._logger(clause=result[0].lower())
elif firstChild == 'INDEX':
self._logger(clause="%s %s %s" %
(result[0], result[1], quot(result[2].lower())))
return result
def visitRELATION(self, node):
results = CqlVisitor.visitRELATION(self, node)
if len(results) == 1:
relation = results[0]
boost = 1.0
else:
(relation, (modifier, comparitor, value)) = results
boost = float(value)
return relation, boost
def visitSCOPED_CLAUSE(self, node):
clause = CqlVisitor.visitSCOPED_CLAUSE(self, node)
if len(clause) == 1:
return clause[0]
lhs, operator, rhs = clause
query = BooleanQuery()
query.add(lhs, LHS_OCCUR[operator])
query.add(rhs, RHS_OCCUR[operator])
return query
def visitRELATION(self, node):
results = CqlVisitor.visitRELATION(self, node)
if len(results) == 1:
relation = results[0]
boost = 1.0
else:
(relation, (modifier, comparitor, value)) = results
boost = float(value)
return relation, boost
def visitSEARCH_CLAUSE(self, node):
# possible children:
# CQL_QUERY
# SEARCH_TERM
# INDEX, RELATION, SEARCH_TERM
firstChild = node.children[0].name
results = CqlVisitor.visitSEARCH_CLAUSE(self, node)
if firstChild == 'SEARCH_TERM':
(unqualifiedRhs, ) = results
if unqualifiedRhs == '*':
return MatchAllDocsQuery()
subQueries = []
for fieldname, boost in self._unqualifiedTermFields:
subQuery = self._termOrPhraseQuery(fieldname, unqualifiedRhs)
if isinstance(
subQuery, PhraseQuery
) and not self._fieldRegistry.phraseQueryPossible(fieldname):
continue
subQuery.setBoost(boost)
subQueries.append(subQuery)
if len(subQueries) == 1:
query = subQueries[0]
else:
query = BooleanQuery()
for subQuery in subQueries:
query.add(subQuery, BooleanClause.Occur.SHOULD)
return query
elif firstChild == 'INDEX':
(left, (relation, boost), right) = results
if relation in [
'==', 'exact'
] or (relation == '=' and self._fieldRegistry.isUntokenized(left)):
query = TermQuery(self._createTerm(left, right))
elif relation == '=':
query = self._termOrPhraseQuery(left, right)
elif relation in ['<', '<=', '>=', '>']:
query = self._termRangeQuery(left, relation, right)
else:
raise UnsupportedCQL("'%s' not supported for the field '%s'" %
(relation, left))
query.setBoost(boost)
return query
else:
((query, ), ) = results
return query
def visitSEARCH_CLAUSE(self, node):
# possible children:
# CQL_QUERY
# SEARCH_TERM
# INDEX, RELATION, SEARCH_TERM
firstChild = node.children[0].name
results = CqlVisitor.visitSEARCH_CLAUSE(self, node)
if firstChild == 'SEARCH_TERM':
(unqualifiedRhs,) = results
if unqualifiedRhs == '*':
return MatchAllDocsQuery()
subQueries = []
for fieldname, boost in self._unqualifiedTermFields:
subQuery = self._termOrPhraseQuery(fieldname, unqualifiedRhs)
if isinstance(subQuery, PhraseQuery) and not self._fieldRegistry.phraseQueryPossible(fieldname):
continue
subQuery.setBoost(boost)
subQueries.append(subQuery)
if len(subQueries) == 1:
query = subQueries[0]
else:
query = BooleanQuery()
for subQuery in subQueries:
query.add(subQuery, BooleanClause.Occur.SHOULD)
return query
elif firstChild == 'INDEX':
(left, (relation, boost), right) = results
if relation in ['==', 'exact'] or (relation == '=' and self._fieldRegistry.isUntokenized(left)):
query = TermQuery(self._createTerm(left, right))
elif relation == '=':
query = self._termOrPhraseQuery(left, right)
elif relation in ['<','<=','>=','>']:
query = self._termRangeQuery(left, relation, right)
else:
raise UnsupportedCQL("'%s' not supported for the field '%s'" % (relation, left))
query.setBoost(boost)
return query
else:
((query,),) = results
return query
def visitRELATION(self, node):
result = CqlVisitor.visitRELATION(self, node)
if len(result) == 1:
return result[0]
relation, (modifier, comparitor, value) = result
return "%s/%s%s%s" % (relation, modifier, comparitor, value)
def __init__(self, astTree, logger):
CqlVisitor.__init__(self, astTree)
self._logger = logger
def __init__(self, unqualifiedTermFields, node, analyzer, fieldRegistry):
CqlVisitor.__init__(self, node)
self._unqualifiedTermFields = unqualifiedTermFields
self._analyzer = analyzer
self._fieldRegistry = fieldRegistry
def visitRELATION(self, node):
result = CqlVisitor.visitRELATION(self, node)
if len(result) == 1:
return result[0]
relation, (modifier, comparitor, value) = result
return "%s/%s%s%s" % (relation, modifier, comparitor, value)
def visitINDEX(self, node):
results = CqlVisitor.visitINDEX(self, node)
return results.replace(':', '\\:')
def __init__(self, ast, unqualifiedTermFields):
CqlVisitor.__init__(self, ast)
self._unqualifiedTermFields = unqualifiedTermFields
def visitSCOPED_CLAUSE(self, node):
clause = CqlVisitor.visitSCOPED_CLAUSE(self, node)
if len(clause) == 1:
return clause[0]
return "(%s)" % ' '.join(clause)
def visitINDEX(self, node):
results = CqlVisitor.visitINDEX(self, node)
return results.replace(':', '\\:')
def __init__(self, unqualifiedTermFields, node, analyzer, fieldRegistry):
CqlVisitor.__init__(self, node)
self._unqualifiedTermFields = unqualifiedTermFields
self._analyzer = analyzer
self._fieldRegistry = fieldRegistry
def __init__(self, ast, unqualifiedTermFields):
CqlVisitor.__init__(self, ast)
self._unqualifiedTermFields = unqualifiedTermFields
def visitSCOPED_CLAUSE(self, node):
clause = CqlVisitor.visitSCOPED_CLAUSE(self, node)
if len(clause) == 1:
return clause[0]
return "(%s)" % ' '.join(clause)
def __init__(self, astTree, logger):
CqlVisitor.__init__(self, astTree)
self._logger = logger
