org.elasticsearch.action.search.SearchActionListener 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.action.search;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.search.SearchPhaseResult;
import org.elasticsearch.search.SearchShardTarget;
/**
* A base action listener that ensures shard target and shard index is set on all responses
* received by this listener.
*/
abstract class SearchActionListener implements ActionListener {
final int requestIndex;
private final SearchShardTarget searchShardTarget;
protected SearchActionListener(SearchShardTarget searchShardTarget,
int shardIndex) {
assert shardIndex >= 0 : "shard index must be positive";
this.searchShardTarget = searchShardTarget;
this.requestIndex = shardIndex;
}
@Override
public final void onResponse(T response) {
response.setShardIndex(requestIndex);
setSearchShardTarget(response);
innerOnResponse(response);
}
protected void setSearchShardTarget(T response) { // some impls need to override this
response.setSearchShardTarget(searchShardTarget);
}
protected abstract void innerOnResponse(T response);
}