org.elasticsearch.index.query.WrapperQueryBuilder Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
Elasticsearch subproject :server
/*
* 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 com.google.common.base.Charsets;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
/**
* A Query builder which allows building a query given JSON string or binary data provided as input. This is useful when you want
* to use the Java Builder API but still have JSON query strings at hand that you want to combine with other
* query builders.
*
* Example usage in a boolean query :
*
*
* BoolQueryBuilder bool = new BoolQueryBuilder();
* bool.must(new WrapperQueryBuilder("{\"term\": {\"field\":\"value\"}}");
* bool.must(new TermQueryBuilder("field2","value2");
*
*
*/
public class WrapperQueryBuilder extends QueryBuilder {
private final byte[] source;
private final int offset;
private final int length;
/**
* Creates a query builder given a query provided as a string
*/
public WrapperQueryBuilder(String source) {
this.source = source.getBytes(Charsets.UTF_8);
this.offset = 0;
this.length = this.source.length;
}
/**
* Creates a query builder given a query provided as a bytes array
*/
public WrapperQueryBuilder(byte[] source, int offset, int length) {
this.source = source;
this.offset = offset;
this.length = length;
}
/**
* Creates a query builder given a query provided as a {@link BytesReference}
*/
public WrapperQueryBuilder(BytesReference source) {
this.source = source.array();
this.offset = source.arrayOffset();
this.length = source.length();
}
@Override
protected void doXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(WrapperQueryParser.NAME);
builder.field("query", source, offset, length);
builder.endObject();
}
}