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/*
* @(#)TransactionBroker.java 1.10 06/28/07
*/
package com.sun.messaging.jmq.jmsserver.data;
import com.sun.messaging.jmq.io.SysMessageID;
import com.sun.messaging.jmq.util.UID;
import com.sun.messaging.jmq.jmsserver.core.BrokerAddress;
import com.sun.messaging.jmq.jmsserver.core.ConsumerUID;
import com.sun.messaging.jmq.jmsserver.cluster.ha.HAClusteredBroker;
import com.sun.messaging.jmq.jmsserver.Globals;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
import com.sun.messaging.jmq.util.log.*;
import java.io.*;
/**
* A transaction participant broker
*/
public class TransactionBroker implements Externalizable, Cloneable
{
static final long serialVersionUID = 4331266333483540901L;
transient private static Logger logger = Globals.getLogger();
static final int PENDING = 0;
static final int COMPLETE = 1;
BrokerAddress broker = null;
int state = PENDING;
// default construct for uninitialized object
public TransactionBroker() {
}
/**
*/
public TransactionBroker(BrokerAddress broker) {
this.broker = broker;
state = PENDING;
}
public TransactionBroker(BrokerAddress broker, boolean completed) {
this(broker);
if (completed) state = COMPLETE;
}
public BrokerAddress getBrokerAddress() {
return broker;
}
public boolean isCompleted() {
return state == COMPLETE;
}
public void setCompleted(boolean value) {
state = (value ? COMPLETE : PENDING);
}
public boolean copyState(TransactionBroker b) throws BrokerException {
if (state == b.state) return false;
if (state == PENDING) {
state = b.state;
return true;
}
throw new BrokerException(
"Can't update transaction broker state from "+toString(state)+ " to "+toString(b.state));
}
public int hashCode() {
return broker.hashCode();
}
// just compare the hashcode
public boolean equals(Object o) {
if (!(o instanceof TransactionBroker)) return false;
return (this.broker).equals(((TransactionBroker)o).broker);
}
public BrokerAddress getCurrentBrokerAddress() {
if (!Globals.getHAEnabled()) return getBrokerAddress();
String brokerid = null;
UID ss = broker.getStoreSessionUID();
if (ss == null) return null;
brokerid = Globals.getClusterManager().lookupStoreSessionOwner(ss);
if (brokerid == null) return null;
if (brokerid.equals(Globals.getMyAddress().getBrokerID())) {
return Globals.getMyAddress();
}
return Globals.getClusterBroadcast().lookupBrokerAddress(brokerid);
}
public boolean isSame(UID ssid) {
if (!Globals.getHAEnabled()) return false;
UID ss = broker.getStoreSessionUID();
if (ss.equals(ssid)) return true;
return false;
}
public String toString() {
if (!Globals.getHAEnabled()) {
return "[" + broker.toString() + "]"+
((state == COMPLETE) ? "":toString(state));
}
BrokerAddress curr = getCurrentBrokerAddress();
return "[" + broker.toString() + "("+(curr == null ? "":curr.toString())+")]"+
((state == COMPLETE) ? "":toString(state));
}
private static String toString(int s) {
if (s == PENDING) return "PENDING";
if (s == COMPLETE) return "COMPLETE";
return "UNKNOWN";
}
public void readExternal(ObjectInput in)
throws IOException, ClassNotFoundException {
state = in.readInt();
broker = (BrokerAddress)in.readObject();
}
public void writeExternal(ObjectOutput out) throws IOException {
out.writeInt(state);
out.writeObject(broker);
}
public Object clone() {
try {
return super.clone();
} catch (CloneNotSupportedException e) {
throw new Error ("This should never happen!");
}
}
}