/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.
*/
package org.elasticsearch.index.query;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermRangeQuery;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.joda.DateMathParser;
import org.elasticsearch.common.joda.Joda;
import org.elasticsearch.common.lucene.BytesRefs;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.index.mapper.MappedFieldType;
import org.elasticsearch.index.mapper.core.DateFieldMapper;
import org.joda.time.DateTimeZone;
import java.io.IOException;
/**
*
*/
public class RangeQueryParser implements QueryParser {
public static final String NAME = "range";
private static final ParseField FIELDDATA_FIELD = new ParseField("fielddata").withAllDeprecated("[no replacement]");
private static final ParseField NAME_FIELD = new ParseField("_name").withAllDeprecated("query name is not supported in short version of range query");
@Inject
public RangeQueryParser() {
}
@Override
public String[] names() {
return new String[]{NAME};
}
@Override
public Query parse(QueryParseContext parseContext) throws IOException, QueryParsingException {
XContentParser parser = parseContext.parser();
String fieldName = null;
Object from = null;
Object to = null;
boolean includeLower = true;
boolean includeUpper = true;
DateTimeZone timeZone = null;
DateMathParser forcedDateParser = null;
float boost = 1.0f;
String queryName = null;
String currentFieldName = null;
XContentParser.Token token;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (parseContext.isDeprecatedSetting(currentFieldName)) {
// skip
} else if (token == XContentParser.Token.START_OBJECT) {
fieldName = currentFieldName;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else {
if ("from".equals(currentFieldName)) {
from = parser.objectBytes();
} else if ("to".equals(currentFieldName)) {
to = parser.objectBytes();
} else if ("include_lower".equals(currentFieldName) || "includeLower".equals(currentFieldName)) {
includeLower = parser.booleanValue();
} else if ("include_upper".equals(currentFieldName) || "includeUpper".equals(currentFieldName)) {
includeUpper = parser.booleanValue();
} else if ("boost".equals(currentFieldName)) {
boost = parser.floatValue();
} else if ("gt".equals(currentFieldName)) {
from = parser.objectBytes();
includeLower = false;
} else if ("gte".equals(currentFieldName) || "ge".equals(currentFieldName)) {
from = parser.objectBytes();
includeLower = true;
} else if ("lt".equals(currentFieldName)) {
to = parser.objectBytes();
includeUpper = false;
} else if ("lte".equals(currentFieldName) || "le".equals(currentFieldName)) {
to = parser.objectBytes();
includeUpper = true;
} else if ("time_zone".equals(currentFieldName) || "timeZone".equals(currentFieldName)) {
timeZone = DateTimeZone.forID(parser.text());
} else if ("format".equals(currentFieldName)) {
forcedDateParser = new DateMathParser(Joda.forPattern(parser.text()));
} else if ("_name".equals(currentFieldName)) {
queryName = parser.text();
} else {
throw new QueryParsingException(parseContext, "[range] query does not support [" + currentFieldName + "]");
}
}
}
} else if (token.isValue()) {
if (parseContext.parseFieldMatcher().match(currentFieldName, NAME_FIELD)) {
queryName = parser.text();
} else if (parseContext.parseFieldMatcher().match(currentFieldName, FIELDDATA_FIELD)) {
// ignore
} else {
throw new QueryParsingException(parseContext, "[range] query does not support [" + currentFieldName + "]");
}
}
}
Query query = null;
MappedFieldType mapper = parseContext.fieldMapper(fieldName);
if (mapper != null) {
if (mapper instanceof DateFieldMapper.DateFieldType) {
query = ((DateFieldMapper.DateFieldType) mapper).rangeQuery(from, to, includeLower, includeUpper, timeZone, forcedDateParser);
} else {
if (timeZone != null) {
throw new QueryParsingException(parseContext, "[range] time_zone can not be applied to non date field ["
+ fieldName + "]");
}
//LUCENE 4 UPGRADE Mapper#rangeQuery should use bytesref as well?
query = mapper.rangeQuery(from, to, includeLower, includeUpper);
}
}
if (query == null) {
query = new TermRangeQuery(fieldName, BytesRefs.toBytesRef(from), BytesRefs.toBytesRef(to), includeLower, includeUpper);
}
query.setBoost(boost);
if (queryName != null) {
parseContext.addNamedQuery(queryName, query);
}
return query;
}
}