org.apache.catalina.ha.tcp.SimpleTcpCluster.fireLifecycleEvent java code examples

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/**
 * Remove an application from cluster replication bus.
 * 
 * @see org.apache.catalina.Cluster#removeManager(Manager)
 */
@Override
public void removeManager(Manager manager) {
  if (manager != null && manager instanceof ClusterManager ) {
    ClusterManager cmgr = (ClusterManager) manager;
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(BEFORE_MANAGERUNREGISTER_EVENT,manager);
    managers.remove(getManagerName(cmgr.getName(),manager));
    cmgr.setCluster(null);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(AFTER_MANAGERUNREGISTER_EVENT, manager);
  }
}

/**
 * Remove an application from cluster replication bus.
 *
 * @see org.apache.catalina.Cluster#removeManager(Manager)
 */
@Override
public void removeManager(Manager manager) {
  if (manager != null && manager instanceof ClusterManager ) {
    ClusterManager cmgr = (ClusterManager) manager;
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(BEFORE_MANAGERUNREGISTER_EVENT,manager);
    managers.remove(getManagerName(cmgr.getName(),manager));
    cmgr.setCluster(null);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(AFTER_MANAGERUNREGISTER_EVENT, manager);
  }
}

/**
 * Remove an application from cluster replication bus.
 *
 * @param manager The manager
 * @see org.apache.catalina.Cluster#removeManager(Manager)
 */
@Override
public void removeManager(Manager manager) {
  if (manager instanceof ClusterManager) {
    ClusterManager cmgr = (ClusterManager) manager;
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(BEFORE_MANAGERUNREGISTER_EVENT,manager);
    managers.remove(getManagerName(cmgr.getName(),manager));
    cmgr.setCluster(null);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(AFTER_MANAGERUNREGISTER_EVENT, manager);
  }
}

/**
 * Cluster member is gone
 *
 * @see org.apache.catalina.tribes.MembershipListener#memberDisappeared(org.apache.catalina.tribes.Member)
 */
@Override
public void memberDisappeared(Member member) {
  try {
    hasMembers = channel.hasMembers();
    if (log.isInfoEnabled()) log.info("Received member disappeared:" + member);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(BEFORE_MEMBERUNREGISTER_EVENT, member);
    unregisterMember(member);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(AFTER_MEMBERUNREGISTER_EVENT, member);
  } catch (Exception x) {
    log.error("Unable remove cluster node from replication system.", x);
  }
}

/**
 * New cluster member is registered
 *
 * @see org.apache.catalina.tribes.MembershipListener#memberAdded(org.apache.catalina.tribes.Member)
 */
@Override
public void memberAdded(Member member) {
  try {
    hasMembers = channel.hasMembers();
    if (log.isInfoEnabled()) log.info("Replication member added:" + member);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(BEFORE_MEMBERREGISTER_EVENT, member);
    registerMember(member);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(AFTER_MEMBERREGISTER_EVENT, member);
  } catch (Exception x) {
    log.error("Unable to connect to replication system.", x);
  }
}

@Override
public void registerManager(Manager manager) {
  if (! (manager instanceof ClusterManager)) {
    log.warn(sm.getString("simpleTcpCluster.clustermanager.notImplement", manager));
    return;
  }
  ClusterManager cmanager = (ClusterManager) manager;
  // Notify our interested LifecycleListeners
  fireLifecycleEvent(BEFORE_MANAGERREGISTER_EVENT, manager);
  String clusterName = getManagerName(cmanager.getName(), manager);
  cmanager.setName(clusterName);
  cmanager.setCluster(this);
  managers.put(clusterName, cmanager);
  // Notify our interested LifecycleListeners
  fireLifecycleEvent(AFTER_MANAGERREGISTER_EVENT, manager);
}

@Override
public void registerManager(Manager manager) {
  if (! (manager instanceof ClusterManager)) {
    log.warn("Manager [ " + manager + "] does not implement ClusterManager, addition to cluster has been aborted.");
    return;
  }
  ClusterManager cmanager = (ClusterManager) manager ;
  cmanager.setDistributable(true);
  // Notify our interested LifecycleListeners
  fireLifecycleEvent(BEFORE_MANAGERREGISTER_EVENT, manager);
  String clusterName = getManagerName(cmanager.getName(), manager);
  cmanager.setName(clusterName);
  cmanager.setCluster(this);
  managers.put(clusterName, cmanager);
  // Notify our interested LifecycleListeners
  fireLifecycleEvent(AFTER_MANAGERREGISTER_EVENT, manager);
}

@Override
public void registerManager(Manager manager) {

  if (! (manager instanceof ClusterManager)) {
    log.warn("Manager [ " + manager + "] does not implement ClusterManager, addition to cluster has been aborted.");
    return;
  }
  ClusterManager cmanager = (ClusterManager) manager ;
  cmanager.setDistributable(true);
  // Notify our interested LifecycleListeners
  fireLifecycleEvent(BEFORE_MANAGERREGISTER_EVENT, manager);
  String clusterName = getManagerName(cmanager.getName(), manager);
  cmanager.setName(clusterName);
  cmanager.setCluster(this);

  managers.put(clusterName, cmanager);
  // Notify our interested LifecycleListeners
  fireLifecycleEvent(AFTER_MANAGERREGISTER_EVENT, manager);    
}

/**
 * Cluster member is gone
 * 
 * @see org.apache.catalina.tribes.MembershipListener#memberDisappeared(org.apache.catalina.tribes.Member)
 */
@Override
public void memberDisappeared(Member member) {
  try {
    hasMembers = channel.hasMembers();            
    if (log.isInfoEnabled()) log.info("Received member disappeared:" + member);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(BEFORE_MEMBERUNREGISTER_EVENT, member);
    unregisterMember(member);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(AFTER_MEMBERUNREGISTER_EVENT, member);
  } catch (Exception x) {
    log.error("Unable remove cluster node from replication system.", x);
  }
}

/**
 * New cluster member is registered
 * 
 * @see org.apache.catalina.tribes.MembershipListener#memberAdded(org.apache.catalina.tribes.Member)
 */
@Override
public void memberAdded(Member member) {
  try {
    hasMembers = channel.hasMembers();
    if (log.isInfoEnabled()) log.info("Replication member added:" + member);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(BEFORE_MEMBERREGISTER_EVENT, member);
    registerMember(member);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(AFTER_MEMBERREGISTER_EVENT, member);
  } catch (Exception x) {
    log.error("Unable to connect to replication system.", x);
  }
}

/**
 * Execute a periodic task, such as reloading, etc. This method will be
 * invoked inside the classloading context of this container. Unexpected
 * throwables will be caught and logged.
 * @see org.apache.catalina.ha.deploy.FarmWarDeployer#backgroundProcess()
 * @see org.apache.catalina.tribes.group.GroupChannel#heartbeat()
 *
 */
@Override
public void backgroundProcess() {
  if (clusterDeployer != null) clusterDeployer.backgroundProcess();
  //send a heartbeat through the channel
  if ( isHeartbeatBackgroundEnabled() && channel !=null ) channel.heartbeat();
  // periodic event
  fireLifecycleEvent(Lifecycle.PERIODIC_EVENT, null);
}

/**
 * Execute a periodic task, such as reloading, etc. This method will be
 * invoked inside the classloading context of this container. Unexpected
 * throwables will be caught and logged.
 * @see org.apache.catalina.ha.deploy.FarmWarDeployer#backgroundProcess()
 * @see org.apache.catalina.tribes.group.GroupChannel#heartbeat()
 * @see org.apache.catalina.tribes.group.GroupChannel.HeartbeatThread#run()
 *
 */
@Override
public void backgroundProcess() {
  if (clusterDeployer != null) clusterDeployer.backgroundProcess();
  //send a heartbeat through the channel
  if ( isHeartbeatBackgroundEnabled() && channel !=null ) channel.heartbeat();
  // periodic event
  fireLifecycleEvent(Lifecycle.PERIODIC_EVENT, null);
}

/**
 * Cluster member is gone
 *
 * @see org.apache.catalina.tribes.MembershipListener#memberDisappeared(org.apache.catalina.tribes.Member)
 */
@Override
public void memberDisappeared(Member member) {
  try {
    hasMembers = channel.hasMembers();
    if (log.isInfoEnabled()) log.info(sm.getString("simpleTcpCluster.member.disappeared", member));
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(BEFORE_MEMBERUNREGISTER_EVENT, member);
    unregisterMember(member);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(AFTER_MEMBERUNREGISTER_EVENT, member);
  } catch (Exception x) {
    log.error(sm.getString("simpleTcpCluster.member.removeFailed"), x);
  }
}

Member dest = message.getAddress();
fireLifecycleEvent(RECEIVE_MESSAGE_FAILURE_EVENT,
    new SendMessageData(message, dest, null));
if (log.isDebugEnabled()) {

/**
 * New cluster member is registered
 *
 * @see org.apache.catalina.tribes.MembershipListener#memberAdded(org.apache.catalina.tribes.Member)
 */
@Override
public void memberAdded(Member member) {
  try {
    hasMembers = channel.hasMembers();
    if (log.isInfoEnabled()) log.info(sm.getString("simpleTcpCluster.member.added", member));
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(BEFORE_MEMBERREGISTER_EVENT, member);
    registerMember(member);
    // Notify our interested LifecycleListeners
    fireLifecycleEvent(AFTER_MEMBERREGISTER_EVENT, member);
  } catch (Exception x) {
    log.error(sm.getString("simpleTcpCluster.member.addFailed"), x);
  }
}

Member dest = message.getAddress();
fireLifecycleEvent(RECEIVE_MESSAGE_FAILURE_EVENT,
    new SendMessageData(message, dest, null));
if (log.isDebugEnabled()) {

public void messageReceived(ClusterMessage message) {
  if (log.isDebugEnabled() && message != null)
    log.debug("Assuming clocks are synched: Replication for "
        + message.getUniqueId() + " took="
        + (System.currentTimeMillis() - (message).getTimestamp())
        + " ms.");
  //invoke all the listeners
  boolean accepted = false;
  if (message != null) {
    for (ClusterListener listener : clusterListeners) {
      if (listener.accept(message)) {
        accepted = true;
        listener.messageReceived(message);
      }
    }
    if (!accepted && notifyLifecycleListenerOnFailure) {
      Member dest = message.getAddress();
      // Notify our interested LifecycleListeners
      fireLifecycleEvent(RECEIVE_MESSAGE_FAILURE_EVENT,
          new SendMessageData(message, dest, null));
      if (log.isDebugEnabled()) {
        log.debug("Message " + message.toString() + " from type "
            + message.getClass().getName()
            + " transferred but no listener registered");
      }
    }
  }
}

Popular methods of SimpleTcpCluster

addValve
Add cluster valve Cluster Valves are only add to container when cluster is started!
checkDefaults
getContainer
Get the Container associated with our Cluster
getManagerTemplate
isHeartbeatBackgroundEnabled
Return heartbeat enable flag (default false)
addClusterListener
Add cluster message listener and register cluster to this listener.
getClusterName
Return the name of the cluster that this Server is currently configured to operate within.
getLocalMember
Return the member that represents this node.
getManagerName
messageReceived
register
registerClusterValve
register all cluster valve to host or engine

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How to use fireLifecycleEventmethodin org.apache.catalina.ha.tcp.SimpleTcpCluster

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fireLifecycleEvent
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org.apache.catalina.ha.tcp.SimpleTcpCluster