Examples of org.jgroups.stack.ProtocolStack

org.jgroups.stack.ProtocolStack
A ProtocolStack manages a number of protocols layered above each other. It creates all protocol classes, initializes them and, when ready, starts all of them, beginning with the bottom most protocol. It also dispatches messages received from the stack to registered objects (e.g. channel, GMP) and sends messages sent by those objects down the stack.
The ProtocolStack makes use of the Configurator to setup and initialize stacks, and to destroy them again when not needed anymore @author Bela Ban

         return;
      //bundling is not good for sync caches
      Configuration.CacheMode cacheMode = configuration.getCacheMode();
      if (!cacheMode.equals(Configuration.CacheMode.LOCAL) && configuration.getCacheMode().isSynchronous())
      {
         ProtocolStack stack = ((JChannel) channel).getProtocolStack();
         TP transport = stack.getTransport();
         if (transport.isEnableBundling())
         {
            log.warn("You have enabled jgroups's message bundling, which is not recommended for sync replication. If there is no particular " +
                  "reason for this we strongly recommend to disable message bundling in JGroups config (enable_bundling=\"false\").");
         }
      }
      //bundling is good for async caches
      if (!cacheMode.isSynchronous())
      {
         ProtocolStack stack = ((JChannel) channel).getProtocolStack();
         TP transport = stack.getTransport();
         if (!transport.isEnableBundling())
         {
            log.warn("You have disabled jgroups's message bundling, which is not recommended for async replication. If there is no particular " +
                  "reason for this we strongly recommend to enable message bundling in JGroups config (enable_bundling=\"true\").");
         }

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   }




   public boolean isSupportStateTransfer() {
      // tests whether state transfer is supported.  We *need* STREAMING_STATE_TRANSFER.
      ProtocolStack stack;
      if (channel != null && (stack = channel.getProtocolStack()) != null) {
         if (stack.findProtocol(STREAMING_STATE_TRANSFER.class) == null) {
            log.error("Channel does not contain STREAMING_STATE_TRANSFER.  Cannot support state transfers!");
            return false;
         }
      } else {
         log.warn("Channel not set up properly!");

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   }




   public boolean isSupportStateTransfer() {
      // tests whether state transfer is supported.  We *need* STREAMING_STATE_TRANSFER.
      ProtocolStack stack;
      if (channel != null && (stack = channel.getProtocolStack()) != null) {
         if (stack.findProtocol(STREAMING_STATE_TRANSFER.class) == null) {
            log.error("Channel does not contain STREAMING_STATE_TRANSFER.  Cannot support state transfers!");
            return false;
         }
      } else {
         log.warn("Channel not set up properly!");

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   }


   public static DISCARD getDiscardForCache(Cache<?, ?> c) throws Exception {
      JGroupsTransport jgt = (JGroupsTransport) TestingUtil.extractComponent(c, Transport.class);
      Channel ch = jgt.getChannel();
      ProtocolStack ps = ch.getProtocolStack();
      DISCARD discard = new DISCARD();
      ps.insertProtocol(discard, ProtocolStack.ABOVE, TP.class);
      return discard;
   }

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    * @throws Exception
    */
   public static DELAY setDelayForCache(Cache<?, ?> cache, int in_delay_millis, int out_delay_millis) throws Exception {
      JGroupsTransport jgt = (JGroupsTransport) TestingUtil.extractComponent(cache, Transport.class);
      Channel ch = jgt.getChannel();
      ProtocolStack ps = ch.getProtocolStack();
      DELAY delay = (DELAY) ps.findProtocol(DELAY.class);
      if (delay==null) {
         delay = new DELAY();
         ps.insertProtocol(delay, ProtocolStack.ABOVE, TP.class);
      }
      delay.setInDelay(in_delay_millis);
      delay.setOutDelay(out_delay_millis);
      return delay;
   }

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   }




   public boolean isSupportStateTransfer() {
      // tests whether state transfer is supported.  We *need* STREAMING_STATE_TRANSFER.
      ProtocolStack stack;
      if (channel != null && (stack = channel.getProtocolStack()) != null) {
         if (stack.findProtocol(STREAMING_STATE_TRANSFER.class) == null) {
            log.error("Channel does not contain STREAMING_STATE_TRANSFER.  Cannot support state transfers!");
            return false;
         }
      } else {
         log.warn("Channel not set up properly!");

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   }




   public boolean isSupportStateTransfer() {
      // tests whether state transfer is supported.  We *need* STREAMING_STATE_TRANSFER.
      ProtocolStack stack;
      if (channel != null && (stack = channel.getProtocolStack()) != null) {
         if (stack.findProtocol(STREAMING_STATE_TRANSFER.class) == null) {
            log.error("Channel does not contain STREAMING_STATE_TRANSFER.  Cannot support state transfers!");
            return false;
         }
      } else {
         log.warn("Channel not set up properly!");

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   }




   public boolean isSupportStateTransfer() {
      // tests whether state transfer is supported.  We *need* STREAMING_STATE_TRANSFER.
      ProtocolStack stack;
      if (channel != null && (stack = channel.getProtocolStack()) != null) {
         if (stack.findProtocol(STREAMING_STATE_TRANSFER.class) == null) {
            log.streamingStateTransferNotPresent();
            return false;
         }
      } else {
         log.channelNotSetUp();

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   }


   public static DISCARD getDiscardForCache(Cache<?, ?> c) throws Exception {
      JGroupsTransport jgt = (JGroupsTransport) TestingUtil.extractComponent(c, Transport.class);
      Channel ch = jgt.getChannel();
      ProtocolStack ps = ch.getProtocolStack();
      DISCARD discard = new DISCARD();
      ps.insertProtocol(discard, ProtocolStack.ABOVE, TP.class);
      return discard;
   }

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    * @throws Exception
    */
   public static DELAY setDelayForCache(Cache<?, ?> cache, int in_delay_millis, int out_delay_millis) throws Exception {
      JGroupsTransport jgt = (JGroupsTransport) TestingUtil.extractComponent(cache, Transport.class);
      Channel ch = jgt.getChannel();
      ProtocolStack ps = ch.getProtocolStack();
      DELAY delay = new DELAY();
      delay.setInDelay(in_delay_millis);
      delay.setOutDelay(out_delay_millis);
      ps.insertProtocol(delay, ProtocolStack.ABOVE, TP.class);
      return delay;
   }

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