/*
* Copyright 2008-2009 the original author or authors.
*
* Licensed 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 net.hasor.land.node;
import net.hasor.core.future.FutureCallback;
import net.hasor.land.bootstrap.LandContext;
import net.hasor.land.domain.NodeStatus;
import net.hasor.land.election.CollectVoteData;
import net.hasor.land.election.CollectVoteResult;
import net.hasor.land.election.LeaderBeatData;
import net.hasor.land.election.LeaderBeatResult;
import net.hasor.land.replicator.DataContext;
import net.hasor.rsf.RsfBindInfo;
import net.hasor.rsf.RsfClient;
/**
* 集群中服务器节点信息
* @version : 2016年09月10日
* @author 赵永春(zyc@hasor.net)
*/
public class NodeData {
private String serverID = null; //服务器ID
private NodeStatus nodeStatus = null; //节点状态
private LandContext landContext = null;
private RsfBindInfo<?> bindInfo = null;
private RsfClient rsfClient = null;
//
protected NodeData(String serverID, LandContext landContext) {
this.serverID = serverID;
this.nodeStatus = NodeStatus.Online;
this.landContext = landContext;
this.bindInfo = landContext.getElectionService();
this.rsfClient = landContext.wrapperApi(serverID);
}
//
/** 获取集群节点名称 */
public String getServerID() {
return serverID;
}
/** 集群节点是否为当前服务器节点 */
public boolean isSelf() {
return this.serverID.equalsIgnoreCase(this.landContext.getServerID());
}
/** 集群节点是否在线 */
public boolean isOnline() {
return this.nodeStatus == NodeStatus.Online;
}
//
//
/** 请求选票,并获得选票结果(异步) */
public void collectVote(Server server, DataContext data, final FutureCallback<CollectVoteResult> callBack) {
CollectVoteData voteData = new CollectVoteData();
voteData.setServerID(this.landContext.getServerID());
voteData.setTerm(server.getCurrentTerm());
//
this.rsfClient.callBackInvoke(this.bindInfo, "collectVote",//
new Class[] { CollectVoteData.class },//
new Object[] { voteData }, //
new FutureCallback<Object>() {
public void completed(Object result) {
callBack.completed((CollectVoteResult) result);
}
public void failed(Throwable ex) {
callBack.failed(ex);
}
public void cancelled() {
callBack.cancelled();
}
});
//
}
/** leader心跳(异步) */
public void leaderHeartbeat(Server server, DataContext data, final FutureCallback<LeaderBeatResult> callBack) {
LeaderBeatData leaderData = new LeaderBeatData();
leaderData.setServerID(this.landContext.getServerID());
leaderData.setCurrentTerm(server.getCurrentTerm());
leaderData.setLastApplied(data.getLastApplied());
leaderData.setCommitIndex(data.getCommitIndex());
//
this.rsfClient.callBackInvoke(this.bindInfo, "leaderHeartbeat",//
new Class[] { LeaderBeatData.class },//
new Object[] { leaderData }, //
new FutureCallback<Object>() {
public void completed(Object result) {
callBack.completed((LeaderBeatResult) result);
}
public void failed(Throwable ex) {
callBack.failed(ex);
}
public void cancelled() {
callBack.cancelled();
}
});
//
}
}