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* obtain a copy of the License at
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package com.sun.messaging.ums.service;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
public class Client {
private String sid = null;
private CachedConnection cc = null;
private Session session = null;
private MessageProducer producer = null;
private MessageConsumer consumer = null;
private long timestamp = 0;
private Logger logger = UMSServiceImpl.logger;
private Object lock;
private boolean sweeped = false;
//XXX use this for sweep
private boolean inuse = false;
private CachedConnectionPool ccpool = null;
//do not cache me if set to true. default set to false.
private boolean noCache = false;
private boolean transacted = false;
/**
* the destination name that current consumer is associated with.
* Each client consumer can only associate with one destination at a
* time.
*/
private String consumerOnDestName = null;
public Client(String sid, CachedConnectionPool ccPool, boolean transacted)
throws JMSException {
this.sid = sid;
this.ccpool = ccPool;
this.transacted = transacted;
this.cc = ccPool.getCachedConnection();
cc.add(this);
this.lock = new Object();
if (UMSServiceImpl.debug) {
logger.info ("client created: " + sid + ", transacted=" + transacted);
}
}
public String getId() {
return this.sid;
}
public Object getLock() {
return this.lock;
}
/**
* set to true if no cache
* @param flag
*/
public void setNoCache (boolean flag) {
this.noCache = flag;
}
/**
* get if no cache mode is true
* @return
*/
public boolean getNoCache() {
return this.noCache;
}
public void setTransacted (boolean flag) {
this.transacted = flag;
}
public boolean getTransacted () {
return this.transacted;
}
public synchronized Session getSession() throws JMSException {
if (session == null) {
session = cc.getConnection().createSession(transacted, Session.AUTO_ACKNOWLEDGE);
}
this.setTimestamp();
return session;
}
public synchronized MessageProducer getProducer() throws JMSException {
if (producer == null) {
getSession();
producer = session.createProducer(null);
}
return producer;
}
public synchronized MessageConsumer getConsumer(boolean isTopic, String destName) throws JMSException {
if (consumer == null) {
this.createConsumer(isTopic, destName);
} else {
if (UMSServiceImpl.debug) {
logger.info("consumer in cache for clientId ... " + sid + ", on dest: " + destName);
}
if (destName.equals(this.consumerOnDestName) == false) {
//app tries ti receive on diff dest.
this.recreateConsumer(isTopic, destName);
}
}
return consumer;
}
private synchronized void recreateConsumer(boolean isTopic, String destName) throws JMSException {
this.consumer.close();
this.createConsumer (isTopic, destName);
}
private synchronized void createConsumer(boolean isTopic, String destName) throws JMSException {
//set current associated dest name
this.consumerOnDestName = destName;
Destination dest = null;
getSession();
if (UMSServiceImpl.debug) {
logger.info ("got session ..." + session.toString());
}
if (isTopic) {
//debugLog("Creating topic: " + destName);
dest = session.createTopic(destName);
} else {
//debugLog("Creating queue: " + destName);
dest = session.createQueue(destName);
}
//debugLog("Creating consumer on dest: " + destName);
consumer = session.createConsumer(dest);
if (UMSServiceImpl.debug) {
logger.info ("created consumer for clientId=" + sid + ", dest=" + dest + ", isTopic=" + isTopic);
}
}
public synchronized void setTimestamp() {
this.timestamp = System.currentTimeMillis();
this.sweeped = false;
}
public synchronized long getTimestamp() {
return this.timestamp;
}
public synchronized boolean getSweeped() {
return this.sweeped;
}
public synchronized void setSweeped(boolean flag) {
this.sweeped = flag;
}
public synchronized void setInuse(boolean flag) {
this.inuse = flag;
}
public synchronized boolean getInUse() {
return this.inuse;
}
/**
* XXX close
*/
public synchronized void close() {
try {
//remove uuid from authenticator
//ccpool.removeSid(this.clientId);
//decrease semaphore
ccpool.releaseConnection(cc);
//remove myself from cc table
this.cc.remove(this);
//close session
if (session != null) {
this.session.close();
}
} catch (Exception e) {
logger.log(Level.WARNING, e.getMessage(), e);
}
}
public String toString() {
return "Name=" + this.getClass().getName() + ", ClientId=" + this.sid + ", inuse=" + this.inuse + ", timestamp=" + this.timestamp;
}
}