/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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.io.BytesStream;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentType;
import java.io.IOException;
/**
* @author kimchy (shay.banon)
*/
public abstract class BaseQueryBuilder implements QueryBuilder {
@Override public String toString() {
try {
XContentBuilder builder = XContentFactory.safeJsonBuilder();
builder.prettyPrint();
toXContent(builder, EMPTY_PARAMS);
return builder.string();
} catch (Exception e) {
throw new QueryBuilderException("Failed to build query", e);
}
}
@Override public BytesStream buildAsUnsafeBytes() throws QueryBuilderException {
return buildAsUnsafeBytes(XContentType.JSON);
}
@Override public BytesStream buildAsUnsafeBytes(XContentType contentType) throws QueryBuilderException {
try {
XContentBuilder builder = XContentFactory.contentBuilder(contentType);
toXContent(builder, EMPTY_PARAMS);
return builder.unsafeStream();
} catch (Exception e) {
throw new QueryBuilderException("Failed to build query", e);
}
}
@Override public byte[] buildAsBytes() throws QueryBuilderException {
return buildAsBytes(XContentType.JSON);
}
@Override public byte[] buildAsBytes(XContentType contentType) throws QueryBuilderException {
try {
XContentBuilder builder = XContentFactory.contentBuilder(contentType);
toXContent(builder, EMPTY_PARAMS);
return builder.copiedBytes();
} catch (Exception e) {
throw new QueryBuilderException("Failed to build query", e);
}
}
@Override public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
doXContent(builder, params);
builder.endObject();
return builder;
}
protected abstract void doXContent(XContentBuilder builder, Params params) throws IOException;
}