package org.apache.blur.manager;
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 static org.apache.blur.lucene.LuceneVersionConstant.LUCENE_VERSION;
import org.apache.blur.analysis.FieldManager;
import org.apache.blur.lucene.search.SuperParser;
import org.apache.blur.server.TableContext;
import org.apache.blur.thrift.generated.BlurException;
import org.apache.blur.thrift.generated.ScoreType;
import org.apache.lucene.queryparser.classic.ParseException;
import org.apache.lucene.search.Filter;
import org.apache.lucene.search.FilteredQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.QueryWrapperFilter;
public class QueryParserUtil {
public static Query parseQuery(String query, boolean superQueryOn, FieldManager fieldManager, Filter postFilter,
Filter preFilter, ScoreType scoreType, TableContext tableContext) throws ParseException {
Query result = new SuperParser(LUCENE_VERSION, fieldManager, superQueryOn, preFilter, scoreType,
tableContext.getDefaultPrimeDocTerm()).parse(query);
if (postFilter == null) {
return result;
}
return new FilteredQuery(result, postFilter);
}
public static Filter parseFilter(String table, String filterStr, boolean superQueryOn,
final FieldManager fieldManager, BlurFilterCache filterCache, final TableContext tableContext)
throws ParseException, BlurException {
if (filterStr == null) {
return null;
}
synchronized (filterCache) {
Filter filter;
if (superQueryOn) {
filter = filterCache.fetchPostFilter(table, filterStr);
} else {
filter = filterCache.fetchPreFilter(table, filterStr);
}
if (filter != null) {
return filter;
}
filter = new QueryWrapperFilter(new SuperParser(LUCENE_VERSION, fieldManager, superQueryOn, null,
ScoreType.CONSTANT, tableContext.getDefaultPrimeDocTerm()).parse(filterStr));
if (superQueryOn) {
filter = filterCache.storePostFilter(table, filterStr, filter, new BlurFilterCache.FilterParser() {
@Override
public Query parse(String query) throws ParseException {
return new SuperParser(LUCENE_VERSION, fieldManager, true, null, ScoreType.CONSTANT, tableContext
.getDefaultPrimeDocTerm()).parse(query);
}
});
} else {
filter = filterCache.storePreFilter(table, filterStr, filter, new BlurFilterCache.FilterParser() {
@Override
public Query parse(String query) throws ParseException {
return new SuperParser(LUCENE_VERSION, fieldManager, false, null, ScoreType.CONSTANT, tableContext
.getDefaultPrimeDocTerm()).parse(query);
}
});
}
return filter;
}
}
}