org.elasticsearch.index.query.TypeFilterParser Maven / Gradle / Ivy
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* the Apache License, Version 2.0 (the "License"); you may
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*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.index.query;
import org.apache.lucene.index.Term;
import org.apache.lucene.queries.TermFilter;
import org.apache.lucene.search.Filter;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.index.mapper.DocumentMapper;
import org.elasticsearch.index.mapper.internal.TypeFieldMapper;
import java.io.IOException;
public class TypeFilterParser implements FilterParser {
public static final String NAME = "type";
@Inject
public TypeFilterParser() {
}
@Override
public String[] names() {
return new String[]{NAME};
}
@Override
public Filter parse(QueryParseContext parseContext) throws IOException, QueryParsingException {
XContentParser parser = parseContext.parser();
XContentParser.Token token = parser.nextToken();
if (token != XContentParser.Token.FIELD_NAME) {
throw new QueryParsingException(parseContext.index(), "[type] filter should have a value field, and the type name");
}
String fieldName = parser.currentName();
if (!fieldName.equals("value")) {
throw new QueryParsingException(parseContext.index(), "[type] filter should have a value field, and the type name");
}
token = parser.nextToken();
if (token != XContentParser.Token.VALUE_STRING) {
throw new QueryParsingException(parseContext.index(), "[type] filter should have a value field, and the type name");
}
BytesRef type = parser.bytes();
// move to the next token
parser.nextToken();
Filter filter;
//LUCENE 4 UPGRADE document mapper should use bytesref aswell?
DocumentMapper documentMapper = parseContext.mapperService().documentMapper(type.utf8ToString());
if (documentMapper == null) {
filter = new TermFilter(new Term(TypeFieldMapper.NAME, type));
} else {
filter = documentMapper.typeFilter();
}
return parseContext.cacheFilter(filter, null);
}
}