/*
* 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.
*/
/*
* @(#)ClusterTakeoverInfo.java 1.12 06/28/07
*/
package com.sun.messaging.jmq.jmsserver.multibroker.raptor;
import java.io.*;
import java.util.*;
import java.nio.*;
import com.sun.messaging.jmq.io.GPacket;
import com.sun.messaging.jmq.io.Status;
import com.sun.messaging.jmq.util.UID;
import com.sun.messaging.jmq.jmsserver.Globals;
import com.sun.messaging.jmq.jmsserver.resources.BrokerResources;
import com.sun.messaging.jmq.jmsserver.cluster.ClusteredBroker;
import com.sun.messaging.jmq.jmsserver.cluster.ha.HAClusteredBroker;
import com.sun.messaging.jmq.jmsserver.multibroker.raptor.ProtocolGlobals;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
/**
* An instance of this class is intended to be used one direction only
*/
public class ClusterTakeoverInfo
{
private static boolean DEBUG = false;
private GPacket pkt = null;
private String brokerID = null;
private UID storeSession = null;
private UID brokerSession = null;
private String brokerHost = null;
private Long xid = null;
private boolean fromTaker = true;
private String taker = null;
private Long timestamp = null;
private boolean timedout = false;
private ClusterTakeoverInfo(String brokerID, UID storeSession,
String brokerHost, UID brokerSession,
Long xid, boolean fromTaker, boolean timedout) {
this.brokerID = brokerID;
this.storeSession = storeSession;
this.brokerHost = brokerHost;
this.brokerSession = brokerSession;
this.xid = xid;
this.fromTaker = fromTaker;
this.timedout = timedout;
}
private ClusterTakeoverInfo(GPacket pkt) {
assert ( pkt.getType() == ProtocolGlobals.G_TAKEOVER_COMPLETE ||
pkt.getType() == ProtocolGlobals.G_TAKEOVER_PENDING ||
pkt.getType() == ProtocolGlobals.G_TAKEOVER_ABORT );
this.pkt = pkt;
brokerID = (String)pkt.getProp("brokerID");
storeSession = new UID(((Long)pkt.getProp("storeSession")).longValue());
Long v = (Long)pkt.getProp("brokerSession");
if (v != null) brokerSession = new UID(v.longValue());
brokerHost =(String)pkt.getProp("brokerHost");
taker = (String)pkt.getProp("taker");
fromTaker = (taker != null);
timestamp = (Long)pkt.getProp("timestamp");
if (timestamp != null) timedout = (timestamp.equals(new Long(0)));
xid = (Long)pkt.getProp("X");
}
/**
*/
public static ClusterTakeoverInfo newInstance(String brokerID, UID storeSession) {
return new ClusterTakeoverInfo(brokerID, storeSession, null, null, null, false, false);
}
public static ClusterTakeoverInfo newInstance(String brokerID, UID storeSession,
String brokerHost, UID brokerSession,
Long xid, boolean fromTaker) {
return new ClusterTakeoverInfo(brokerID, storeSession, brokerHost,
brokerSession, xid, fromTaker, false);
}
public static ClusterTakeoverInfo newInstance(String brokerID, UID storeSession,
String brokerHost, UID brokerSession, Long xid,
boolean fromTaker, boolean timedout) {
return new ClusterTakeoverInfo(brokerID, storeSession, brokerHost,
brokerSession, xid, fromTaker, timedout);
}
/**
*
* @param pkt The GPacket to be unmarsheled
*/
public static ClusterTakeoverInfo newInstance(GPacket pkt) {
return new ClusterTakeoverInfo(pkt);
}
public GPacket getGPacket(short protocol) throws BrokerException {
assert ( protocol == ProtocolGlobals.G_TAKEOVER_COMPLETE ||
protocol == ProtocolGlobals.G_TAKEOVER_PENDING ||
protocol == ProtocolGlobals.G_TAKEOVER_ABORT );
if (!Globals.getHAEnabled()) {
throw new BrokerException(
Globals.getBrokerResources().getKString(
BrokerResources.E_INTERNAL_BROKER_ERROR,
"Broker is not running in HA mode"));
}
if (pkt != null) {
assert ( pkt.getType() == protocol );
return pkt;
}
GPacket gp = GPacket.getInstance();
gp.putProp("brokerID", brokerID);
gp.putProp("storeSession", new Long(storeSession.longValue()));
if (protocol == ProtocolGlobals.G_TAKEOVER_COMPLETE) {
gp.setType(protocol);
gp.setBit(gp.A_BIT, false);
return gp;
}
HAClusteredBroker cb = (HAClusteredBroker)Globals.getClusterManager().getLocalBroker();
if (protocol == ProtocolGlobals.G_TAKEOVER_PENDING) {
gp.setType(ProtocolGlobals.G_TAKEOVER_PENDING);
gp.setBit(gp.A_BIT, false);
gp.putProp("brokerSession", new Long(brokerSession.longValue()));
gp.putProp("brokerHost", brokerHost);
if (fromTaker) {
taker = cb.getBrokerName();
gp.putProp("taker", taker);
gp.putProp("timestamp", new Long(cb.getHeartbeat()));
gp.setBit(gp.A_BIT, true);
} else if (timedout) {
gp.putProp("timestamp", new Long(0));
}
gp.putProp("X", xid);
return gp;
}
if (protocol == ProtocolGlobals.G_TAKEOVER_ABORT) {
gp.setType(ProtocolGlobals.G_TAKEOVER_ABORT);
if (fromTaker) {
gp.putProp("taker", cb.getBrokerName());
}
gp.setBit(gp.A_BIT, false);
gp.putProp("X", xid);
return gp;
}
throw new BrokerException("Unknown protocol: "+protocol);
}
public String getBrokerID() {
return brokerID;
}
public UID getStoreSession() {
return storeSession;
}
public Long getXid() {
return xid;
}
public UID getBrokerSession() {
return brokerSession;
}
public String getBrokerHost() {
return brokerHost;
}
public String getTaker() {
return taker;
}
public Long getTimestamp() {
assert (pkt != null);
return timestamp;
}
public boolean isTimedout() {
return timedout;
}
public boolean isFromTaker() {
return fromTaker;
}
public String toString() {
if (pkt == null) {
return getTaker()+
":[brokerID="+getBrokerID()+
", storeSession="+getStoreSession()+"]"+
(getBrokerSession() == null ? "":"brokerSession="+getBrokerSession())+", "+xid;
}
if (pkt.getType() == ProtocolGlobals.G_TAKEOVER_COMPLETE) {
return "[brokerID="+getBrokerID()+", storeSession="+getStoreSession()+"]";
}
if (pkt.getType() == ProtocolGlobals.G_TAKEOVER_PENDING) {
String prefix = "";
if (DEBUG) {
if (getTaker() != null) prefix = getTaker()+"("+ ((timestamp == null) ? "":""+timestamp)+":";
return prefix+ "[brokerID="+getBrokerID()+
", storeSession="+getStoreSession()+"]"+
(getBrokerSession() == null ? "":"brokerSession="+getBrokerSession())+
", "+getBrokerHost()+", "+xid;
}
return prefix+ "[brokerID="+getBrokerID()+
", storeSession="+getStoreSession()+"]"+
(getBrokerSession() == null ? "":"brokerSession="+getBrokerSession())+", "+xid;
}
return getTaker()+
":[brokerID="+getBrokerID()+
", storeSession="+getStoreSession()+"]"+
(getBrokerSession() == null ? "":"brokerSession="+getBrokerSession())+", "+xid;
}
public boolean needReply() {
assert ( pkt != null );
return pkt.getBit(pkt.A_BIT);
}
public GPacket getReplyGPacket(short protocol, int status, String reason) {
assert ( pkt != null );
assert ( protocol == ProtocolGlobals.G_TAKEOVER_PENDING_REPLY );
GPacket gp = GPacket.getInstance();
gp.setType(protocol);
gp.putProp("X", (Long)pkt.getProp("X"));
gp.putProp("brokerID", pkt.getProp("brokerID"));
gp.putProp("storeSession", pkt.getProp("storeSession"));
gp.putProp("taker", pkt.getProp("taker"));
gp.putProp("S", new Integer(status));
if (reason != null) gp.putProp("reason", reason);
return gp;
}
public static int getReplyStatus(GPacket reply) {
return ((Integer)reply.getProp("S")).intValue();
}
public static String getReplyStatusReason(GPacket reply) {
return (String)reply.getProp("reason");
}
public static Long getReplyXid(GPacket reply) {
return (Long)reply.getProp("X");
}
public static String toString(GPacket reply) {
StringBuffer buf = new StringBuffer();
buf.append("\n\treplyStatus = ").append(Status.getString(getReplyStatus(reply)));
if (reply.getProp("reason") != null) {
buf.append("\n\treason = ").append(getReplyStatusReason(reply));
}
buf.append("[brokerID = ").append((String)reply.getProp("brokerID"));
buf.append(", storeSession = ").append((Long)reply.getProp("storeSession"));
buf.append("], ").append((Long)reply.getProp("X"));
buf.append(" - ").append((String)reply.getProp("taker"));
return buf.toString();
}
}