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/*
* @(#)TakingoverTracker.java 1.3 06/29/07
*/
package com.sun.messaging.jmq.jmsserver.service;
import java.util.Map;
import com.sun.messaging.jmq.io.Packet;
import com.sun.messaging.jmq.util.UID;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
import com.sun.messaging.jmq.jmsserver.core.Destination;
import com.sun.messaging.jmq.jmsserver.cluster.ha.HAClusteredBroker;
/**
*/
public final class TakingoverTracker {
public static final int BEFORE_GET_LOCK = 0;
public static final int AFTER_GET_LOCK = 1;
public static final int BEFORE_TAKE_STORE = 2;
public static final int BEFORE_DB_SWITCH_OWNER = 3;
public static final int AFTER_DB_SWITCH_OWNER = 4;
public static final int AFTER_TAKE_STORE = 5;
public static final int BEFORE_PROCESSING = 6;
public static final int AFTER_PROCESSING = 7;
private String brokerID = null; // Broker that is being taken over
private UID storeSession = null;
private Thread runner = null;
private Map msgMap = null; // Message IDs & destination IDS to be takeover
private int stage = -1;
private int substage = -1;
private UID brokerSession = null;
private UID downStoreSession = null;
private long lastHeartbeat = 0;
/**
*/
public TakingoverTracker(String brokerid, Thread runnerThread) {
brokerID = brokerid;
runner = runnerThread;
}
public void setStoreSession(long sid) {
storeSession = new UID(sid);
}
public UID getStoreSessionUID() {
return storeSession;
}
public void setBrokerSessionUID(UID bss) {
brokerSession = bss;
}
public UID getBrokerSessionUID() {
return brokerSession;
}
public void setDownStoreSessionUID(UID ss) {
downStoreSession = ss;
}
public UID getDownStoreSessionUID() {
return downStoreSession;
}
public void setLastHeartbeat(long ts) {
lastHeartbeat = ts;
}
public long getLastHeartbeat() {
return lastHeartbeat;
}
/**
* Return the brokerID that is being taken over.
* @return the brokerID that is being taken over
*/
public final String getBrokerID() {
return brokerID;
}
public final Thread getTakeoverRunner() {
return runner;
}
public final int getStage() {
if (substage != -1) return substage;
return stage;
}
/**
* @param mMap of message IDs and corresponding destination IDs to be taken over
*/
public final void setMessageMap(Map mMap) throws BrokerException {
if (Thread.currentThread() != runner) {
throw new BrokerException(
"Internal Error: TakingoverTracker.setMessageMap() not runner thread");
}
if (stage < AFTER_GET_LOCK ||
stage > BEFORE_DB_SWITCH_OWNER) {
throw new BrokerException(
"Internal Error: TakingoverTracker.setMessageMap() unexpected stage "+
stage+"("+substage+")");
}
msgMap = mMap;
}
public final boolean containDestination(Destination d) {
if (msgMap == null) return false;
return msgMap.containsValue(d.getDestinationUID().toString());
}
public final boolean containMessage(Packet m) {
if (msgMap == null) return false;
return msgMap.containsKey(m.getSysMessageID().toString());
}
public final void setStage_BEFORE_GET_LOCK() {
stage = BEFORE_GET_LOCK;
}
public final void setStage_AFTER_GET_LOCK() {
stage = AFTER_GET_LOCK;
}
public final void setStage_BEFORE_TAKE_STORE() {
stage = BEFORE_TAKE_STORE;
}
public final void setStage_BEFORE_DB_SWITCH_OWNER() {
substage = BEFORE_DB_SWITCH_OWNER;
}
public final void setStage_AFTER_DB_SWITCH_OWNER() {
substage = AFTER_DB_SWITCH_OWNER;
}
public final void setStage_AFTER_TAKE_STORE() {
stage = AFTER_TAKE_STORE;
}
public final void setStage_BEFORE_PROCESSING() {
stage = BEFORE_PROCESSING;
}
public final void setStage_AFTER_PROCESSING() {
stage = AFTER_PROCESSING;
}
public String toString() {
return getBrokerID()+"[StoreSession:"+
(getStoreSessionUID() == null ? "":getStoreSessionUID())+"], "+
(getBrokerSessionUID() == null ? "":getBrokerSessionUID())+
", "+lastHeartbeat+", ("+getStage()+")";
}
}