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/*
* 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.elasticsearch.common.ParseField;
import org.elasticsearch.common.ParsingException;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.xcontent.XContentParser;
import java.io.IOException;
/**
* Parser for field_masking_span query
*/
public class FieldMaskingSpanQueryParser implements QueryParser<FieldMaskingSpanQueryBuilder> {
public static final ParseField FIELD_FIELD = new ParseField("field");
public static final ParseField QUERY_FIELD = new ParseField("query");
@Override
public String[] names() {
return new String[]{FieldMaskingSpanQueryBuilder.NAME, Strings.toCamelCase(FieldMaskingSpanQueryBuilder.NAME)};
}
@Override
public FieldMaskingSpanQueryBuilder fromXContent(QueryParseContext parseContext) throws IOException {
XContentParser parser = parseContext.parser();
float boost = AbstractQueryBuilder.DEFAULT_BOOST;
SpanQueryBuilder inner = null;
String field = null;
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 (token == XContentParser.Token.START_OBJECT) {
if (parseContext.parseFieldMatcher().match(currentFieldName, QUERY_FIELD)) {
QueryBuilder query = parseContext.parseInnerQueryBuilder();
if (!(query instanceof SpanQueryBuilder)) {
throw new ParsingException(parser.getTokenLocation(), "[field_masking_span] query must be of type span query");
}
inner = (SpanQueryBuilder) query;
} else {
throw new ParsingException(parser.getTokenLocation(), "[field_masking_span] query does not support ["
+ currentFieldName + "]");
}
} else {
if (parseContext.parseFieldMatcher().match(currentFieldName, AbstractQueryBuilder.BOOST_FIELD)) {
boost = parser.floatValue();
} else if (parseContext.parseFieldMatcher().match(currentFieldName, FIELD_FIELD)) {
field = parser.text();
} else if (parseContext.parseFieldMatcher().match(currentFieldName, AbstractQueryBuilder.NAME_FIELD)) {
queryName = parser.text();
} else {
throw new ParsingException(parser.getTokenLocation(), "[field_masking_span] query does not support [" + currentFieldName + "]");
}
}
}
if (inner == null) {
throw new ParsingException(parser.getTokenLocation(), "field_masking_span must have [query] span query clause");
}
if (field == null) {
throw new ParsingException(parser.getTokenLocation(), "field_masking_span must have [field] set for it");
}
FieldMaskingSpanQueryBuilder queryBuilder = new FieldMaskingSpanQueryBuilder(inner, field);
queryBuilder.boost(boost);
queryBuilder.queryName(queryName);
return queryBuilder;
}
@Override
public FieldMaskingSpanQueryBuilder getBuilderPrototype() {
return FieldMaskingSpanQueryBuilder.PROTOTYPE;
}
}
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