org.elasticsearch.action.support.ChannelActionListener Maven / Gradle / Ivy
/*
* 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.support;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.message.ParameterizedMessage;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.transport.TransportChannel;
import org.elasticsearch.transport.TransportRequest;
import org.elasticsearch.transport.TransportResponse;
public final class ChannelActionListener<
Response extends TransportResponse, Request extends TransportRequest> implements ActionListener {
private static final Logger logger = LogManager.getLogger(ChannelActionListener.class);
private final TransportChannel channel;
private final Request request;
private final String actionName;
public ChannelActionListener(TransportChannel channel, String actionName, Request request) {
this.channel = channel;
this.request = request;
this.actionName = actionName;
}
@Override
public void onResponse(Response response) {
try {
channel.sendResponse(response);
} catch (Exception e) {
onFailure(e);
}
}
@Override
public void onFailure(Exception e) {
try {
channel.sendResponse(e);
} catch (Exception e1) {
e1.addSuppressed(e);
logger.warn(() -> new ParameterizedMessage(
"Failed to send error response for action [{}] and request [{}]", actionName, request), e1);
}
}
}