/*
* Licensed to ElasticSearch and Shay Banon 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.discovery.zen.ping;
import org.elasticsearch.ElasticSearchException;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.common.component.LifecycleComponent;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Streamable;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.discovery.zen.DiscoveryNodesProvider;
import java.io.IOException;
import static org.elasticsearch.cluster.ClusterName.readClusterName;
import static org.elasticsearch.cluster.node.DiscoveryNode.readNode;
/**
*
*/
public interface ZenPing extends LifecycleComponent<ZenPing> {
void setNodesProvider(DiscoveryNodesProvider nodesProvider);
void ping(PingListener listener, TimeValue timeout) throws ElasticSearchException;
public interface PingListener {
void onPing(PingResponse[] pings);
}
public class PingResponse implements Streamable {
private ClusterName clusterName;
private DiscoveryNode target;
private DiscoveryNode master;
private PingResponse() {
}
public PingResponse(DiscoveryNode target, DiscoveryNode master, ClusterName clusterName) {
this.target = target;
this.master = master;
this.clusterName = clusterName;
}
public ClusterName clusterName() {
return this.clusterName;
}
public DiscoveryNode target() {
return target;
}
public DiscoveryNode master() {
return master;
}
public static PingResponse readPingResponse(StreamInput in) throws IOException {
PingResponse response = new PingResponse();
response.readFrom(in);
return response;
}
@Override
public void readFrom(StreamInput in) throws IOException {
clusterName = readClusterName(in);
target = readNode(in);
if (in.readBoolean()) {
master = readNode(in);
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
clusterName.writeTo(out);
target.writeTo(out);
if (master == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
master.writeTo(out);
}
}
@Override
public String toString() {
return "ping_response{target [" + target + "], master [" + master + "], cluster_name[" + clusterName.value() + "]}";
}
}
}