/*
* Copyright (c) 2013, OpenCloudDB/MyCAT and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software;Designed and Developed mainly by many Chinese
* opensource volunteers. you can redistribute it and/or modify it under the
* terms of the GNU General Public License version 2 only, as published by the
* Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Any questions about this component can be directed to it's project Web address
* https://code.google.com/p/opencloudb/.
*
*/
package org.opencloudb.server.response;
import org.apache.log4j.Logger;
import org.opencloudb.MycatServer;
import org.opencloudb.config.ErrorCode;
import org.opencloudb.net.mysql.ErrorPacket;
import org.opencloudb.net.mysql.HeartbeatPacket;
import org.opencloudb.net.mysql.OkPacket;
import org.opencloudb.server.ServerConnection;
import org.opencloudb.util.TimeUtil;
/**
* @author mycat
*/
public class Heartbeat {
private static final Logger HEARTBEAT = Logger.getLogger("heartbeat");
public static void response(ServerConnection c, byte[] data) {
HeartbeatPacket hp = new HeartbeatPacket();
hp.read(data);
if (MycatServer.getInstance().isOnline()) {
OkPacket ok = new OkPacket();
ok.packetId = 1;
ok.affectedRows = hp.id;
ok.serverStatus = 2;
ok.write(c);
if (HEARTBEAT.isInfoEnabled()) {
HEARTBEAT.info(responseMessage("OK", c, hp.id));
}
} else {
ErrorPacket error = new ErrorPacket();
error.packetId = 1;
error.errno = ErrorCode.ER_SERVER_SHUTDOWN;
error.message = String.valueOf(hp.id).getBytes();
error.write(c);
if (HEARTBEAT.isInfoEnabled()) {
HEARTBEAT.info(responseMessage("ERROR", c, hp.id));
}
}
}
private static String responseMessage(String action, ServerConnection c, long id) {
return new StringBuilder("RESPONSE:").append(action).append(", id=").append(id).append(", host=")
.append(c.getHost()).append(", port=").append(c.getPort()).append(", time=")
.append(TimeUtil.currentTimeMillis()).toString();
}
}