move decision about being a slave from the Broker to the ConnectionContext - so can be done on a Connection basis if required

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@557748 13f79535-47bb-0310-9956-ffa450edef68

activemq-core/src/main/java/org/apache/activemq/broker/Broker.java

@@ -192,11 +192,6 @@ public interface Broker extends Region, Service {
      */
     public void processDispatch(MessageDispatch messageDispatch);
   
-    /**
-     * @return true if the broker is running as a slave
-     */
-    public boolean isSlaveBroker();
-    
     /**
      * @return true if the broker has stopped
      */

activemq-core/src/main/java/org/apache/activemq/broker/BrokerFilter.java

@@ -201,10 +201,6 @@ public class BrokerFilter implements Broker {
         next.processDispatchNotification(messageDispatchNotification);
     }
         
-    public boolean isSlaveBroker(){
-        return next.isSlaveBroker();
-    }
-    
     public boolean isStopped(){
         return next.isStopped();
     }

activemq-core/src/main/java/org/apache/activemq/broker/BrokerService.java

@@ -154,6 +154,7 @@ public class BrokerService implements Service {
     private boolean useLocalHostBrokerName = false;
     private CountDownLatch stoppedLatch = new CountDownLatch(1);
     private boolean supportFailOver = false;
+    private boolean clustered = false;
 
     static{
         String localHostName = "localhost";
@@ -1121,6 +1122,20 @@ public class BrokerService implements Service {
         this.supportFailOver=supportFailOver;
     }    
     
+    /**
+     * @return the clustered
+     */
+    public boolean isClustered(){
+        return this.clustered;
+    }
+
+    /**
+     * @param clustered the clustered to set
+     */
+    public void setClustered(boolean clustered){
+        this.clustered=clustered;
+    }
+
     // Implementation methods
     // -------------------------------------------------------------------------
     /**
@@ -1698,5 +1713,4 @@ public class BrokerService implements Service {
             }
         }
     }   
-   
 }

activemq-core/src/main/java/org/apache/activemq/broker/ConnectionContext.java

@@ -59,6 +59,7 @@ public class ConnectionContext {
     private final AtomicBoolean stopping = new AtomicBoolean();
     private final MessageEvaluationContext messageEvaluationContext = new MessageEvaluationContext();
 	private boolean dontSendReponse;
+    private boolean clientMaster=true;
     
     public ConnectionContext() {
     }
@@ -269,4 +270,27 @@ public class ConnectionContext {
 		return dontSendReponse;
 	}
 
+    
+    /**
+     * @return the slave
+     */
+    public boolean isSlave(){
+        return (this.broker!=null&&this.broker.getBrokerService().isSlave())||!this.clientMaster;
+    }
+
+    
+    /**
+     * @return the clientMaster
+     */
+    public boolean isClientMaster(){
+        return this.clientMaster;
+    }
+
+    
+    /**
+     * @param clientMaster the clientMaster to set
+     */
+    public void setClientMaster(boolean clientMaster){
+        this.clientMaster=clientMaster;
+    }	
 }

activemq-core/src/main/java/org/apache/activemq/broker/EmptyBroker.java

@@ -199,9 +199,6 @@ public class EmptyBroker implements Broker {
 
     }
 
-    public boolean isSlaveBroker() {
-        return false;
-    }
     
     public boolean isStopped() {
         return false;

activemq-core/src/main/java/org/apache/activemq/broker/ErrorBroker.java

@@ -197,9 +197,6 @@ public class ErrorBroker implements Broker {
         throw new BrokerStoppedException(this.message);
     }
 
-    public boolean isSlaveBroker() {
-        throw new BrokerStoppedException(this.message);
-    }
    
     public boolean isStopped() {
         return true;

activemq-core/src/main/java/org/apache/activemq/broker/MutableBrokerFilter.java

@@ -209,9 +209,6 @@ public class MutableBrokerFilter implements Broker {
         getNext().processDispatchNotification(messageDispatchNotification);
     }
     
-    public boolean isSlaveBroker(){
-        return getNext().isSlaveBroker();
-    }
        
     public boolean isStopped(){
         return getNext().isStopped();

activemq-core/src/main/java/org/apache/activemq/broker/TransportConnection.java

@@ -658,6 +658,7 @@ public class TransportConnection implements Service,Connection,Task,CommandVisit
         context.setClientId(clientId);
         context.setUserName(info.getUserName());
         context.setConnectionId(info.getConnectionId());
+        context.setClientMaster(info.isClientMaster());
         context.setWireFormatInfo(wireFormatInfo);
         context.setNetworkConnection(networkConnection);
         context.incrementReference();
@@ -1211,6 +1212,7 @@ public class TransportConnection implements Service,Connection,Task,CommandVisit
         }
     }
     
+   	
 	public int getProtocolVersion() {
 		return protocolVersion.get();
 	}

activemq-core/src/main/java/org/apache/activemq/broker/region/AbstractSubscription.java

@@ -115,8 +115,8 @@ abstract public class AbstractSubscription implements Subscription {
     public void gc() {        
     }
     
-    public boolean isSlaveBroker(){
+    public boolean isSlave(){
-        return broker.isSlaveBroker();
+        return getContext().isSlave();
     }
 
     public ConnectionContext getContext() {

activemq-core/src/main/java/org/apache/activemq/broker/region/PrefetchSubscription.java

@@ -74,7 +74,7 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
         // The slave should not deliver pull messages. TODO: when the slave becomes a master,
         // He should send a NULL message to all the consumers to 'wake them up' in case
         // they were waiting for a message.
-        if(getPrefetchSize()==0&&!isSlaveBroker()){
+        if(getPrefetchSize()==0&&!isSlave()){
             prefetchExtension++;
             final long dispatchCounterBeforePull=dispatchCounter;
             dispatchMatched();
@@ -119,7 +119,7 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
         pendingEmpty=pending.isEmpty();
         enqueueCounter++;
        
-        if(!isFull()&&pendingEmpty&&!broker.isSlaveBroker()){
+        if(!isFull()&&pendingEmpty&&!isSlave()){
             dispatch(node);
         }else{
             optimizePrefetch();
@@ -260,7 +260,7 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
         if(callDispatchMatched){
             dispatchMatched();
         }else{
-            if(isSlaveBroker()){
+            if(isSlave()){
                 throw new JMSException("Slave broker out of sync with master: Acknowledgment ("+ack
                         +") was not in the dispatch list: "+dispatched);
             }else{
@@ -295,7 +295,7 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
      * @return
      */
     protected synchronized boolean isFull(){
-        return isSlaveBroker()||dispatched.size()-prefetchExtension>=info.getPrefetchSize();
+        return isSlave()||dispatched.size()-prefetchExtension>=info.getPrefetchSize();
     }
 
     /**
@@ -377,7 +377,7 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
     }
 
     protected synchronized void dispatchMatched() throws IOException{
-        if(!broker.isSlaveBroker()){
+        if(!isSlave()){
             try{
                 int numberToDispatch=countBeforeFull();
                 if(numberToDispatch>0){
@@ -412,7 +412,7 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
             return false;
         }
         // Make sure we can dispatch a message.
-        if(canDispatch(node)&&!isSlaveBroker()){
+        if(canDispatch(node)&&!isSlave()){
             MessageDispatch md=createMessageDispatch(node,message);
             // NULL messages don't count... they don't get Acked.
             if(node!=QueueMessageReference.NULL_MESSAGE){

activemq-core/src/main/java/org/apache/activemq/broker/region/Subscription.java

@@ -111,7 +111,7 @@ public interface Subscription extends SubscriptionRecovery {
     /**
      * @return true if the broker is currently in slave mode
      */
-    boolean isSlaveBroker();
+    boolean isSlave();
     
     /**
      * @return number of messages pending delivery

activemq-core/src/main/java/org/apache/activemq/broker/region/TopicSubscription.java

@@ -74,7 +74,7 @@ public class TopicSubscription extends AbstractSubscription{
     public void add(MessageReference node) throws Exception{
         enqueueCounter.incrementAndGet();
         node.incrementReferenceCount();
-        if(!isFull()&&!isSlaveBroker()){
+        if(!isFull()&&!isSlave()){
             optimizePrefetch();
             // if maximumPendingMessages is set we will only discard messages which
             // have not been dispatched (i.e. we allow the prefetch buffer to be filled)

activemq-core/src/main/java/org/apache/activemq/command/ConnectionInfo.java

@@ -36,7 +36,7 @@ public class ConnectionInfo extends BaseCommand {
     protected BrokerId[] brokerPath;
     protected boolean brokerMasterConnector;
     protected boolean manageable;
-    protected boolean clientMaster;
+    protected boolean clientMaster=true;
     protected transient Object transportContext; 
     
     public ConnectionInfo() {