/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2000-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
/*
*/
package com.sun.messaging.jmq.jmsserver.data.handlers.admin;
import java.util.Set;
import java.util.Hashtable;
import java.util.Properties;
import com.sun.messaging.jmq.io.Packet;
import com.sun.messaging.jmq.io.Status;
import com.sun.messaging.jmq.io.PacketType;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQConnection;
import com.sun.messaging.jmq.util.admin.MessageType;
import com.sun.messaging.jmq.util.log.Logger;
import com.sun.messaging.jmq.jmsserver.Globals;
import com.sun.messaging.jmq.jmsserver.Broker;
import com.sun.messaging.jmq.jmsservice.BrokerEvent;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
import com.sun.messaging.jmq.jmsserver.resources.BrokerResources;
import com.sun.messaging.jmq.jmsserver.config.*;
import com.sun.messaging.jmq.jmsserver.cluster.ClusterManagerImpl;
import com.sun.messaging.jmq.jmsserver.cluster.ClusterManager;
import com.sun.messaging.jmq.jmsserver.core.BrokerMQAddress;
public class ChangeClusterMasterBrokerHandler extends AdminCmdHandler
{
private static boolean DEBUG = getDEBUG();
public ChangeClusterMasterBrokerHandler(AdminDataHandler parent) {
super(parent);
}
/**
* Handle the incomming administration message.
*
* @param con The Connection the message came in on.
* @param cmd_msg The administration message
* @param cmd_props The properties from the administration message
*/
public boolean handle(IMQConnection con, Packet cmd_msg,
Hashtable cmd_props) {
int status = Status.OK;
String emsg = null;
if (DEBUG) {
logger.log(Logger.INFO, this.getClass().getName()+": "+cmd_props);
}
boolean notificationOnly = false, fromJMSRA = false;
String oldmb = (String)cmd_props.get(MessageType.JMQ_CLUSTER_OLD_MASTER_BROKER);
String newmb = (String)cmd_props.get(MessageType.JMQ_CLUSTER_NEW_MASTER_BROKER);
Object val = cmd_props.get(MessageType.JMQ_JMSRA_MANAGED_BROKER);
if (val != null && Boolean.valueOf(val.toString()).booleanValue()) {
fromJMSRA = true;
}
val = cmd_props.get(MessageType.JMQ_JMSRA_NOTIFICATION_ONLY);
if (val != null && Boolean.valueOf(val.toString()).booleanValue()
&& fromJMSRA && Globals.isJMSRAManagedBroker()) {
notificationOnly = true;
}
logger.log(logger.INFO, Globals.getBrokerResources().getKString(
BrokerResources.I_ADMIN_RECEIVED_CMD,
MessageType.getString(MessageType.CHANGE_CLUSTER_MASTER_BROKER)+
"["+MessageType.JMQ_CLUSTER_NEW_MASTER_BROKER+"="+newmb+", "+
MessageType.JMQ_CLUSTER_OLD_MASTER_BROKER+"="+oldmb+"]"+
(fromJMSRA ? "JMSRA":"")+
(notificationOnly ? "("+MessageType.JMQ_JMSRA_NOTIFICATION_ONLY+")":"")));
if (Globals.getHAEnabled()) {
status = Status.PRECONDITION_FAILED;
emsg = rb.getKString(rb.E_OP_NOT_APPLY_TO_HA_BROKER,
MessageType.getString(MessageType.CHANGE_CLUSTER_MASTER_BROKER));
logger.log(Logger.ERROR, emsg);
sendReply(status, emsg, con, cmd_msg);
return true;
}
if (Globals.useSharedConfigRecord()) {
status = Status.PRECONDITION_FAILED;
emsg = rb.getKString(rb.E_OP_NOT_APPLY_NO_MASTER_BROKER_MODE,
MessageType.getString(MessageType.CHANGE_CLUSTER_MASTER_BROKER));
logger.log(Logger.ERROR, emsg);
sendReply(status, emsg, con, cmd_msg);
return true;
}
try {
if (!Globals.dynamicChangeMasterBrokerEnabled()) {
throw new BrokerException(Globals.getBrokerResources().getKString(
BrokerResources.X_NO_SUPPORT_DYNAMIC_CHANGE_MASTER_BROKER),
Status.NOT_ALLOWED);
}
if (newmb == null) {
throw new IllegalArgumentException("null "+
MessageType.JMQ_CLUSTER_NEW_MASTER_BROKER);
}
if (!fromJMSRA && Globals.isJMSRAManagedBroker()) {
throw new IllegalAccessException(
Globals.getBrokerResources().getKString(
BrokerResources.X_ADMIN_CHANGE_MASTER_NOT_FROM_JMSRA));
}
ClusterManager cm = Globals.getClusterManager();
BrokerMQAddress self = (BrokerMQAddress)cm.getMQAddress();
BrokerMQAddress master = (cm.getMasterBroker() == null ?
null:(BrokerMQAddress)cm.getMasterBroker().getBrokerURL());
BrokerMQAddress newmba = BrokerMQAddress.createAddress(newmb);
BrokerMQAddress oldmba = null;
if (oldmb != null) {
oldmba = BrokerMQAddress.createAddress(oldmb);
}
if (notificationOnly) {
if (master == null) {
emsg = "IllegalStateException for notification "+
MessageType.getString(MessageType.CHANGE_CLUSTER_MASTER_BROKER)+
": No master broker";
logger.log(logger.ERROR, emsg);
sendReply(Status.ERROR, emsg, con, cmd_msg);
Broker.getBroker().exit(1, emsg, BrokerEvent.Type.ERROR);
throw new IllegalStateException(emsg);
}
if (newmba.equals(self)) {
if (!master.equals(self)) {
emsg = "IllegalStateException for notification "+
MessageType.getString(MessageType.CHANGE_CLUSTER_MASTER_BROKER)+
": This broker, which has master broker "+master+
", is not the master broker as expected";
logger.log(logger.ERROR, emsg);
sendReply(Status.ERROR, emsg, con, cmd_msg);
Broker.getBroker().exit(1, emsg, BrokerEvent.Type.ERROR);
return true;
}
}
if (oldmba != null && oldmba.equals(self)) {
if (!master.equals(newmba)) {
emsg = "IllegalStateException for notification "+
MessageType.getString(MessageType.CHANGE_CLUSTER_MASTER_BROKER)+
": This broker, which is the old master broker "+oldmba+
", does not have "+newmba+" as the master broker as expected";
logger.log(logger.ERROR, emsg);
sendReply(Status.ERROR, emsg, con, cmd_msg);
Broker.getBroker().exit(1, emsg, BrokerEvent.Type.ERROR);
return true;
}
}
sendReply(Status.OK, null, con, cmd_msg);
return true;
}
if (master == null) {
throw new BrokerException(Globals.getBrokerResources().getKString(
BrokerResources.X_CLUSTER_NO_MASTER_BROKER_REJECT_CHANGE_MASTER),
Status.PRECONDITION_FAILED);
}
if (newmba.equals(master)) {
logger.log(logger.INFO, Globals.getBrokerResources().getKString(
BrokerResources.I_CLUSTER_CHANGE_MASTER_BROKER_SAME, newmba));
sendReply(Status.OK, null, con, cmd_msg);
return true;
}
if (oldmba == null) {
oldmba = master;
}
if (!oldmba.equals(master)) {
throw new BrokerException(Globals.getBrokerResources().getKString(
BrokerResources.X_CLUSTER_CHANGE_MASTER_BROKER_MISMATCH,
oldmba.toString(), master), Status.PRECONDITION_FAILED);
}
if (!self.equals(master)) {
if (!Globals.isJMSRAManagedBroker()) {
throw new BrokerException(Globals.getBrokerResources().getKString(
BrokerResources.X_CLUSTER_THIS_BROKER_NOT_MASTER_BROKER_REJECT_CHANGE_MASTER,
master.toString()), Status.NOT_ALLOWED);
}
sendReply(Status.OK, null, con, cmd_msg);
return true;
}
Globals.getClusterBroadcast().changeMasterBroker(newmba, oldmba);
sendReply(Status.OK, null, con, cmd_msg);
return true;
} catch (Exception e) {
status = Status.ERROR;
emsg = e.getMessage();
if (e instanceof BrokerException) {
status = ((BrokerException)e).getStatusCode();
emsg = emsg+"["+Status.getString(status)+"]";
}
logger.logStack(Logger.ERROR, emsg, e);
sendReply(status, emsg, con, cmd_msg);
return true;
}
}
private void sendReply(int status, String emsg, IMQConnection con, Packet cmd_msg) {
Packet reply = new Packet(con.useDirectBuffers());
reply.setPacketType(PacketType.OBJECT_MESSAGE);
setProperties(reply, MessageType.CHANGE_CLUSTER_MASTER_BROKER_REPLY, status, emsg);
parent.sendReply(con, cmd_msg, reply);
}
}