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*
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* 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:
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*
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/*
* @(#)NoCluster.java 1.38 07/23/07
*/
package com.sun.messaging.jmq.jmsserver.cluster.api;
import java.util.*;
import java.io.*;
import com.sun.messaging.jmq.util.UID;
import com.sun.messaging.jmq.io.SysMessageID;
import com.sun.messaging.jmq.jmsserver.core.*;
import com.sun.messaging.jmq.jmsserver.service.ConnectionUID;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
/**
* Simple message bus implementation which can be used
* in non-clustered environments.
*/
public class NoCluster implements ClusterBroadcast {
private static final Object noOwner = new Object();
private static BrokerAddress noAddress =
new BrokerAddress() {
String address="localhost";
public Object clone() {
return this;
}
public boolean equals(Object o) {
return o instanceof BrokerAddress;
}
public int hashCode() {
return address.hashCode();
}
public String toProtocolString() {
return null;
}
public BrokerAddress fromProtocolString(String s) throws Exception {
throw new UnsupportedOperationException(
this.getClass().getName()+".fromProtocolString");
}
public void writeBrokerAddress(DataOutputStream os)
throws IOException
{
}
public void readBrokerAddress(DataInputStream dis)
throws IOException
{
}
public boolean getHAEnabled() {
return false;
}
public String getBrokerID() {
return null;
}
public UID getBrokerSessionUID() {
return null;
}
public UID getStoreSessionUID() {
return null;
}
public void setStoreSessionUID(UID uid) {
}
public String getInstanceName() {
return null;
}
};
public int getClusterVersion() {
return VERSION_350;
}
public void messageDelivered(SysMessageID id, ConsumerUID uid,
BrokerAddress ba)
{
}
public void init(int connLimit, int version)
throws BrokerException {
}
public Object getProtocol() {
return null;
}
/**
* Set the matchProps for the cluster.
*/
public void setMatchProps(Properties matchProps) {
}
/**
*
*/
public boolean waitForConfigSync() {
return false;
}
public void startClusterIO() {
}
public void pauseMessageFlow() throws IOException {
}
public void resumeMessageFlow() throws IOException {
}
public void forwardMessage(PacketReference ref, Collection consumers)
{
}
public void stopClusterIO(boolean requestTakeover, boolean force,
BrokerAddress excludedBroker) {
}
/**
* Returns the address of this broker.
* @return BrokerAddress object representing this
* broker.
*/
public BrokerAddress getMyAddress() {
return noAddress;
}
private static Map map = Collections.synchronizedMap(
new HashMap());
public boolean lockSharedResource(String resource, Object owner) {
return true;
}
public boolean lockExclusiveResource(String resource, Object owner) {
return true;
}
public void unlockExclusiveResource(String resource, Object owner) {
}
public boolean lockDestination(DestinationUID uid, Object owner)
{
// unnecessary in single broker implementation
return true;
}
public void unlockDestination(DestinationUID uid, Object owner) {
// unnecessary in single broker
}
public synchronized boolean lockClientID(String clientid, Object owner, boolean shared)
{
if (shared) {
throw new RuntimeException("shared clientID's not supported w/o cluster");
}
String lockid = "clientid:" + clientid;
if (shared) {
// no reason to lock in multibroker
return true;
}
return lockResource(lockid, System.currentTimeMillis(), owner);
}
public synchronized void unlockClientID(String clientid, Object owner) {
String lockid = "clientid:" + clientid;
unlockResource(lockid);
}
public boolean getConsumerLock(ConsumerUID uid,
DestinationUID duid, int position,
int maxActive, Object owner)
throws BrokerException
{
return true;
}
public void unlockConsumer(ConsumerUID uid, DestinationUID duid, int position) {
// for now, do nothing
}
public boolean lockResource(String id, long timestamp,
Object owner) {
synchronized (map) {
Object val = map.get(id);
if (val != null) {
return false;
}
if (owner == null) {
owner = noOwner;
}
map.put(id, owner);
return true;
}
}
public void unlockResource(String id) {
map.remove(id);
}
public void freeAllLocks(Object owner) {
synchronized (map) {
Iterator itr = map.values().iterator();
while (itr.hasNext()) {
Object o = itr.next();
if (o.equals(owner)) {
itr.remove();
}
}
}
}
public void acknowledgeMessage(BrokerAddress address, SysMessageID sysid,
ConsumerUID cuid, int ackType, Map optionalProps,
boolean ackack) throws BrokerException
{
}
public void acknowledgeMessage2P(BrokerAddress address, SysMessageID[] sysids,
ConsumerUID[] cuids, int type,
Map optProp, Long txnID, UID txnStoreSession,
boolean ackack, boolean async)
throws BrokerException
{
throw new BrokerException("Broker Internal Error: unexpected call acknowledgeMessage");
}
public void recordUpdateDestination(Destination d)
throws BrokerException {
}
public void recordRemoveDestination(Destination d)
throws BrokerException {
}
public void createDestination(Destination dest)
throws BrokerException
{
}
public void recordCreateSubscription(Subscription sub)
throws BrokerException {
}
public void recordUnsubscribe(Subscription sub)
throws BrokerException {
}
public void createSubscription(Subscription sub, Consumer cons)
throws BrokerException
{
}
public void createConsumer(Consumer con)
throws BrokerException {
}
public void updateDestination(Destination dest)
throws BrokerException {
}
public void updateSubscription(Subscription sub)
throws BrokerException {
}
public void updateConsumer(Consumer con)
throws BrokerException {
}
public void destroyDestination(Destination dest)
throws BrokerException {
}
public void destroyConsumer(Consumer con, Map pendingMsgs, boolean cleanup)
throws BrokerException {
}
public void connectionClosed(ConnectionUID uid, boolean admin) {
freeAllLocks(uid);
}
public void reloadCluster() {
}
public Hashtable getAllDebugState() {
return new Hashtable();
}
public boolean lockUIDPrefix(short p){
return true;
}
public void preTakeover(String brokerID, UID storeSession,
String brokerHost, UID brokerSession) throws BrokerException {
throw new BrokerException("Not Supported");
}
public void postTakeover(String brokerID, UID storeSession, boolean aborted, boolean notify) {};
public void sendClusterTransactionInfo(long tid, BrokerAddress address) {};
public BrokerAddress lookupBrokerAddress(String brokerid) {
return null;
};
public BrokerAddress lookupBrokerAddress(BrokerMQAddress mqaddr) {
return null;
};
public String lookupStoreSessionOwner(UID storeSession) {
return null;
}
/**
* Change master broker
*/
public void changeMasterBroker(BrokerMQAddress newmaster, BrokerMQAddress oldmaster)
throws BrokerException {
throw new BrokerException("Not Supported");
}
public String sendTakeoverMEPrepare(String brokerID, byte[] token,
Long syncTimeout, String uuid)
throws BrokerException {
throw new BrokerException("Not Supported");
}
public String sendTakeoverME(String brokerID, String uuid)
throws BrokerException {
throw new BrokerException("Not Supported");
}
public void sendMigrateStoreRequest(String targetBrokerID, Long syncTimeout,
String uuid, String myBrokerID)
throws BrokerException {
throw new BrokerException("Not Supported");
}
public void transferFiles(String[] fileNames, String targetBrokerID,
Long syncTimeout, String uuid, String myBrokerID,
String module, FileTransferCallback callback)
throws BrokerException {
throw new BrokerException("Not Supported");
}
public void syncChangeRecordOnStartup() throws BrokerException {
}
public void notifyPartitionArrival(UID partitionId, String brokerID)
throws BrokerException {
}
}
