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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.catalina.ha.tcp;
import java.beans.PropertyChangeSupport;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.catalina.Container;
import org.apache.catalina.Context;
import org.apache.catalina.Engine;
import org.apache.catalina.Host;
import org.apache.catalina.LifecycleEvent;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.LifecycleListener;
import org.apache.catalina.LifecycleState;
import org.apache.catalina.Manager;
import org.apache.catalina.Valve;
import org.apache.catalina.ha.CatalinaCluster;
import org.apache.catalina.ha.ClusterListener;
import org.apache.catalina.ha.ClusterManager;
import org.apache.catalina.ha.ClusterMessage;
import org.apache.catalina.ha.ClusterValve;
import org.apache.catalina.ha.session.DeltaManager;
import org.apache.catalina.ha.util.IDynamicProperty;
import org.apache.catalina.tribes.Channel;
import org.apache.catalina.tribes.ChannelListener;
import org.apache.catalina.tribes.Member;
import org.apache.catalina.tribes.MembershipListener;
import org.apache.catalina.tribes.group.GroupChannel;
import org.apache.catalina.util.LifecycleBase;
import org.apache.tomcat.util.res.StringManager;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.IntrospectionUtils;
import org.apache.catalina.ha.session.ClusterSessionListener;
import org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor;
import org.apache.catalina.tribes.group.interceptors.TcpFailureDetector;
import org.apache.catalina.ha.session.JvmRouteBinderValve;
import org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener;
import org.apache.catalina.ha.jmx.ClusterJmxHelper;
/**
* A Cluster implementation using simple multicast. Responsible for
* setting up a cluster and provides callers with a valid multicast
* receiver/sender.
*
* FIXME remove install/remove/start/stop context dummys
* FIXME wrote testcases
*
* @author Filip Hanik
* @author Remy Maucherat
* @author Peter Rossbach
* @version $Id: SimpleTcpCluster.java 940008 2010-05-01 13:31:46Z markt $
*/
public class SimpleTcpCluster extends LifecycleBase
implements CatalinaCluster, LifecycleListener, IDynamicProperty,
MembershipListener, ChannelListener{
public static final Log log = LogFactory.getLog(SimpleTcpCluster.class);
// ----------------------------------------------------- Instance Variables
/**
* Descriptive information about this component implementation.
*/
protected static final String info = "SimpleTcpCluster/2.2";
public static final String BEFORE_MEMBERREGISTER_EVENT = "before_member_register";
public static final String AFTER_MEMBERREGISTER_EVENT = "after_member_register";
public static final String BEFORE_MANAGERREGISTER_EVENT = "before_manager_register";
public static final String AFTER_MANAGERREGISTER_EVENT = "after_manager_register";
public static final String BEFORE_MANAGERUNREGISTER_EVENT = "before_manager_unregister";
public static final String AFTER_MANAGERUNREGISTER_EVENT = "after_manager_unregister";
public static final String BEFORE_MEMBERUNREGISTER_EVENT = "before_member_unregister";
public static final String AFTER_MEMBERUNREGISTER_EVENT = "after_member_unregister";
public static final String SEND_MESSAGE_FAILURE_EVENT = "send_message_failure";
public static final String RECEIVE_MESSAGE_FAILURE_EVENT = "receive_message_failure";
/**
* Group channel.
*/
protected Channel channel = new GroupChannel();
/**
* Name for logging purpose
*/
protected String clusterImpName = "SimpleTcpCluster";
/**
* The string manager for this package.
*/
protected static final StringManager sm = StringManager.getManager(Constants.Package);
/**
* The cluster name to join
*/
protected String clusterName ;
/**
* call Channel.heartbeat() at container background thread
* @see org.apache.catalina.tribes.group.GroupChannel#heartbeat()
*/
protected boolean heartbeatBackgroundEnabled =false ;
/**
* The Container associated with this Cluster.
*/
protected Container container = null;
/**
* The property change support for this component.
*/
protected PropertyChangeSupport support = new PropertyChangeSupport(this);
/**
* The context name <->manager association for distributed contexts.
*/
protected Map managers =
new HashMap();
protected ClusterManager managerTemplate = new DeltaManager();
private List valves = new ArrayList();
private org.apache.catalina.ha.ClusterDeployer clusterDeployer;
/**
* Listeners of messages
*/
protected List clusterListeners = new ArrayList();
/**
* Comment for notifyLifecycleListenerOnFailure
*/
private boolean notifyLifecycleListenerOnFailure = false;
/**
* dynamic sender properties
*/
private Map properties = new HashMap();
private int channelSendOptions = Channel.SEND_OPTIONS_ASYNCHRONOUS;
private int channelStartOptions = Channel.DEFAULT;
// ------------------------------------------------------------- Properties
public SimpleTcpCluster() {
}
/**
* Return descriptive information about this Cluster implementation and the
* corresponding version number, in the format
* <description>/<version>.
*/
public String getInfo() {
return (info);
}
/**
* Return heartbeat enable flag (default false)
* @return the heartbeatBackgroundEnabled
*/
public boolean isHeartbeatBackgroundEnabled() {
return heartbeatBackgroundEnabled;
}
/**
* enabled that container backgroundThread call heartbeat at channel
* @param heartbeatBackgroundEnabled the heartbeatBackgroundEnabled to set
*/
public void setHeartbeatBackgroundEnabled(boolean heartbeatBackgroundEnabled) {
this.heartbeatBackgroundEnabled = heartbeatBackgroundEnabled;
}
/**
* Set the name of the cluster to join, if no cluster with this name is
* present create one.
*
* @param clusterName
* The clustername to join
*/
public void setClusterName(String clusterName) {
this.clusterName = clusterName;
}
/**
* Return the name of the cluster that this Server is currently configured
* to operate within.
*
* @return The name of the cluster associated with this server
*/
public String getClusterName() {
if(clusterName == null && container != null)
return container.getName() ;
return clusterName;
}
/**
* Set the Container associated with our Cluster
*
* @param container
* The Container to use
*/
public void setContainer(Container container) {
Container oldContainer = this.container;
this.container = container;
support.firePropertyChange("container", oldContainer, this.container);
}
/**
* Get the Container associated with our Cluster
*
* @return The Container associated with our Cluster
*/
public Container getContainer() {
return (this.container);
}
/**
* @return Returns the notifyLifecycleListenerOnFailure.
*/
public boolean isNotifyLifecycleListenerOnFailure() {
return notifyLifecycleListenerOnFailure;
}
/**
* @param notifyListenerOnFailure
* The notifyLifecycleListenerOnFailure to set.
*/
public void setNotifyLifecycleListenerOnFailure(
boolean notifyListenerOnFailure) {
boolean oldNotifyListenerOnFailure = this.notifyLifecycleListenerOnFailure;
this.notifyLifecycleListenerOnFailure = notifyListenerOnFailure;
support.firePropertyChange("notifyLifecycleListenerOnFailure",
oldNotifyListenerOnFailure,
this.notifyLifecycleListenerOnFailure);
}
/**
* @deprecated use getManagerTemplate().getClass().getName() instead.
* @return String
*/
@Deprecated
public String getManagerClassName() {
return managerTemplate.getClass().getName();
}
/**
* @deprecated use nested <Manager> element inside the cluster config instead.
* @param managerClassName String
*/
@Deprecated
public void setManagerClassName(String managerClassName) {
log.warn("setManagerClassName is deprecated, use nested element inside the element instead, this request will be ignored.");
}
/**
* Add cluster valve
* Cluster Valves are only add to container when cluster is started!
* @param valve The new cluster Valve.
*/
public void addValve(Valve valve) {
if (valve instanceof ClusterValve && (!valves.contains(valve)))
valves.add(valve);
}
/**
* get all cluster valves
* @return current cluster valves
*/
public Valve[] getValves() {
return valves.toArray(new Valve[valves.size()]);
}
/**
* Get the cluster listeners associated with this cluster. If this Array has
* no listeners registered, a zero-length array is returned.
*/
public ClusterListener[] findClusterListeners() {
if (clusterListeners.size() > 0) {
ClusterListener[] listener = new ClusterListener[clusterListeners.size()];
clusterListeners.toArray(listener);
return listener;
} else
return new ClusterListener[0];
}
/**
* add cluster message listener and register cluster to this listener
*
* @see org.apache.catalina.ha.CatalinaCluster#addClusterListener(org.apache.catalina.ha.MessageListener)
*/
public void addClusterListener(ClusterListener listener) {
if (listener != null && !clusterListeners.contains(listener)) {
clusterListeners.add(listener);
listener.setCluster(this);
}
}
/**
* remove message listener and deregister Cluster from listener
*
* @see org.apache.catalina.ha.CatalinaCluster#removeClusterListener(org.apache.catalina.ha.MessageListener)
*/
public void removeClusterListener(ClusterListener listener) {
if (listener != null) {
clusterListeners.remove(listener);
listener.setCluster(null);
}
}
/**
* get current Deployer
*/
public org.apache.catalina.ha.ClusterDeployer getClusterDeployer() {
return clusterDeployer;
}
/**
* set a new Deployer, must be set before cluster started!
*/
public void setClusterDeployer(
org.apache.catalina.ha.ClusterDeployer clusterDeployer) {
this.clusterDeployer = clusterDeployer;
}
public void setChannel(Channel channel) {
this.channel = channel;
}
public void setManagerTemplate(ClusterManager managerTemplate) {
this.managerTemplate = managerTemplate;
}
public void setChannelSendOptions(int channelSendOptions) {
this.channelSendOptions = channelSendOptions;
}
/**
* has members
*/
protected boolean hasMembers = false;
public boolean hasMembers() {
return hasMembers;
}
/**
* Get all current cluster members
* @return all members or empty array
*/
public Member[] getMembers() {
return channel.getMembers();
}
/**
* Return the member that represents this node.
*
* @return Member
*/
public Member getLocalMember() {
return channel.getLocalMember(true);
}
// ------------------------------------------------------------- dynamic
// manager property handling
/**
* JMX hack to direct use at jconsole
*
* @param name
* @param value
*/
public boolean setProperty(String name, String value) {
return setProperty(name, (Object) value);
}
/**
* set config attributes with reflect and propagate to all managers
*
* @param name
* @param value
*/
public boolean setProperty(String name, Object value) {
if (log.isTraceEnabled())
log.trace(sm.getString("SimpleTcpCluster.setProperty", name, value,properties.get(name)));
properties.put(name, value);
//using a dynamic way of setting properties is nice, but a security risk
//if exposed through JMX. This way you can sit and try to guess property names,
//we will only allow explicit property names
log.warn("Dynamic setProperty("+name+",value) has been disabled, please use explicit properties for the element you are trying to identify");
return false;
}
/**
* get current config
*
* @param key
* @return The property
*/
public Object getProperty(String key) {
if (log.isTraceEnabled())
log.trace(sm.getString("SimpleTcpCluster.getProperty", key));
return properties.get(key);
}
/**
* Get all properties keys
*
* @return An iterator over the property names.
*/
public Iterator getPropertyNames() {
return properties.keySet().iterator();
}
/**
* remove a configured property.
*
* @param key
*/
public void removeProperty(String key) {
properties.remove(key);
}
/**
* transfer properties from cluster configuration to subelement bean.
* @param prefix
* @param bean
*/
protected void transferProperty(String prefix, Object bean) {
if (prefix != null) {
for (Iterator iter = getPropertyNames(); iter.hasNext();) {
String pkey = iter.next();
if (pkey.startsWith(prefix)) {
String key = pkey.substring(prefix.length() + 1);
Object value = getProperty(pkey);
IntrospectionUtils.setProperty(bean, key, value.toString());
}
}
}
}
// --------------------------------------------------------- Public Methods
/**
* @return Returns the managers.
*/
public Map getManagers() {
return managers;
}
public Channel getChannel() {
return channel;
}
public ClusterManager getManagerTemplate() {
return managerTemplate;
}
public int getChannelSendOptions() {
return channelSendOptions;
}
/**
* Create new Manager without add to cluster (comes with start the manager)
*
* @param name
* Context Name of this manager
* @see org.apache.catalina.Cluster#createManager(java.lang.String)
* @see #addManager(String, Manager)
* @see DeltaManager#start()
*/
public synchronized Manager createManager(String name) {
if (log.isDebugEnabled()) log.debug("Creating ClusterManager for context " + name + " using class " + getManagerClassName());
Manager manager = null;
try {
manager = managerTemplate.cloneFromTemplate();
((ClusterManager)manager).setName(name);
} catch (Exception x) {
log.error("Unable to clone cluster manager, defaulting to org.apache.catalina.ha.session.DeltaManager", x);
manager = new org.apache.catalina.ha.session.DeltaManager();
} finally {
if ( manager != null && (manager instanceof ClusterManager)) ((ClusterManager)manager).setCluster(this);
}
return manager;
}
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);
cmanager.setDefaultMode(false);
managers.put(clusterName, cmanager);
// Notify our interested LifecycleListeners
fireLifecycleEvent(AFTER_MANAGERREGISTER_EVENT, manager);
}
/**
* remove an application form cluster replication bus
*
* @see org.apache.catalina.ha.CatalinaCluster#removeManager(java.lang.String,Manager)
*/
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);
}
}
/**
* @param name
* @param manager
* @return
*/
public String getManagerName(String name, Manager manager) {
String clusterName = name ;
if ( clusterName == null ) clusterName = manager.getContainer().getName();
if(getContainer() instanceof Engine) {
Container context = manager.getContainer() ;
if(context != null && context instanceof Context) {
Container host = ((Context)context).getParent();
if(host != null && host instanceof Host && clusterName!=null && !(clusterName.indexOf("#")>=0))
clusterName = host.getName() +"#" + clusterName ;
}
}
return clusterName;
}
/*
* Get Manager
*
* @see org.apache.catalina.ha.CatalinaCluster#getManager(java.lang.String)
*/
public Manager getManager(String name) {
return managers.get(name);
}
// ------------------------------------------------------ Lifecycle Methods
/**
* 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()
*
*/
public void backgroundProcess() {
if (clusterDeployer != null) clusterDeployer.backgroundProcess();
//send a heartbeat through the channel
if ( isHeartbeatBackgroundEnabled() && channel !=null ) channel.heartbeat();
}
/**
* Use as base to handle start/stop/periodic Events from host. Currently
* only log the messages as trace level.
*
* @see org.apache.catalina.LifecycleListener#lifecycleEvent(org.apache.catalina.LifecycleEvent)
*/
public void lifecycleEvent(LifecycleEvent lifecycleEvent) {
if (log.isTraceEnabled())
log.trace(sm.getString("SimpleTcpCluster.event.log", lifecycleEvent.getType(), lifecycleEvent.getData()));
}
// ------------------------------------------------------ public
@Override
protected void initInternal() {
// NOOP
}
/**
* Start Cluster and implement the requirements
* of {@link LifecycleBase#startInternal()}.
*
* @exception LifecycleException if this component detects a fatal error
* that prevents this component from being used
*/
@Override
protected void startInternal() throws LifecycleException {
if (log.isInfoEnabled()) log.info("Cluster is about to start");
try {
checkDefaults();
registerClusterValve();
channel.addMembershipListener(this);
channel.addChannelListener(this);
channel.start(channelStartOptions);
if (clusterDeployer != null) clusterDeployer.start();
//register JMX objects
ClusterJmxHelper.registerDefaultCluster(this);
// Notify our interested LifecycleListeners
} catch (Exception x) {
log.error("Unable to start cluster.", x);
throw new LifecycleException(x);
}
setState(LifecycleState.STARTING);
}
protected void checkDefaults() {
if ( clusterListeners.size() == 0 ) {
addClusterListener(new JvmRouteSessionIDBinderListener());
addClusterListener(new ClusterSessionListener());
}
if ( valves.size() == 0 ) {
addValve(new JvmRouteBinderValve());
addValve(new ReplicationValve());
}
if ( clusterDeployer != null ) clusterDeployer.setCluster(this);
if ( channel == null ) channel = new GroupChannel();
if ( channel instanceof GroupChannel && !((GroupChannel)channel).getInterceptors().hasNext()) {
channel.addInterceptor(new MessageDispatch15Interceptor());
channel.addInterceptor(new TcpFailureDetector());
}
}
/**
* register all cluster valve to host or engine
* @throws Exception
* @throws ClassNotFoundException
*/
protected void registerClusterValve() throws Exception {
if(container != null ) {
for (Iterator iter = valves.iterator(); iter.hasNext();) {
ClusterValve valve = (ClusterValve) iter.next();
if (log.isDebugEnabled())
log.debug("Invoking addValve on " + getContainer()
+ " with class=" + valve.getClass().getName());
if (valve != null) {
IntrospectionUtils.callMethodN(getContainer(), "addValve",
new Object[] { valve },
new Class[] { org.apache.catalina.Valve.class });
}
valve.setCluster(this);
}
}
}
/**
* unregister all cluster valve to host or engine
* @throws Exception
* @throws ClassNotFoundException
*/
protected void unregisterClusterValve() throws Exception {
for (Iterator iter = valves.iterator(); iter.hasNext();) {
ClusterValve valve = (ClusterValve) iter.next();
if (log.isDebugEnabled())
log.debug("Invoking removeValve on " + getContainer()
+ " with class=" + valve.getClass().getName());
if (valve != null) {
IntrospectionUtils.callMethodN(getContainer(), "removeValve",
new Object[] { valve }, new Class[] { org.apache.catalina.Valve.class });
}
valve.setCluster(this);
}
}
/**
* Stop Cluster and implement the requirements
* of {@link LifecycleBase#startInternal()}.
*
* @exception LifecycleException if this component detects a fatal error
* that prevents this component from being used
*/
@Override
protected void stopInternal() throws LifecycleException {
setState(LifecycleState.STOPPING);
if (clusterDeployer != null) clusterDeployer.stop();
this.managers.clear();
try {
if ( clusterDeployer != null ) clusterDeployer.setCluster(null);
channel.stop(channelStartOptions);
channel.removeChannelListener(this);
channel.removeMembershipListener(this);
this.unregisterClusterValve();
//unregister JMX objects
ClusterJmxHelper.unregisterDefaultCluster(this);
} catch (Exception x) {
log.error("Unable to stop cluster valve.", x);
}
}
@Override
protected void destroyInternal() {
// NOOP
}
/**
* Return a String rendering of this object.
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder(this.getClass().getName());
sb.append('[');
if (container == null) {
sb.append("Container is null");
} else {
sb.append(container.getName());
}
sb.append(']');
return sb.toString();
}
/**
* send message to all cluster members
* @param msg message to transfer
*
* @see org.apache.catalina.ha.CatalinaCluster#send(org.apache.catalina.ha.ClusterMessage)
*/
public void send(ClusterMessage msg) {
send(msg, null);
}
/**
* send message to all cluster members same cluster domain
*
* @see org.apache.catalina.ha.CatalinaCluster#send(org.apache.catalina.ha.ClusterMessage)
*/
public void sendClusterDomain(ClusterMessage msg) {
send(msg,null);
}
/**
* send a cluster message to one member
*
* @param msg message to transfer
* @param dest Receiver member
* @see org.apache.catalina.ha.CatalinaCluster#send(org.apache.catalina.ha.ClusterMessage,
* org.apache.catalina.ha.Member)
*/
public void send(ClusterMessage msg, Member dest) {
try {
msg.setAddress(getLocalMember());
if (dest != null) {
if (!getLocalMember().equals(dest)) {
channel.send(new Member[] {dest}, msg,channelSendOptions);
} else
log.error("Unable to send message to local member " + msg);
} else {
Member[] destmembers = channel.getMembers();
if (destmembers.length>0)
channel.send(destmembers,msg,channelSendOptions);
else if (log.isDebugEnabled())
log.debug("No members in cluster, ignoring message:"+msg);
}
} catch (Exception x) {
log.error("Unable to send message through cluster sender.", x);
}
}
/**
* New cluster member is registered
*
* @see org.apache.catalina.ha.MembershipListener#memberAdded(org.apache.catalina.ha.Member)
*/
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);
// Notify our interested LifecycleListeners
fireLifecycleEvent(AFTER_MEMBERREGISTER_EVENT, member);
} catch (Exception x) {
log.error("Unable to connect to replication system.", x);
}
}
/**
* Cluster member is gone
*
* @see org.apache.catalina.ha.MembershipListener#memberDisappeared(org.apache.catalina.ha.Member)
*/
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);
// Notify our interested LifecycleListeners
fireLifecycleEvent(AFTER_MEMBERUNREGISTER_EVENT, member);
} catch (Exception x) {
log.error("Unable remove cluster node from replication system.", x);
}
}
// --------------------------------------------------------- receiver
// messages
/**
* notify all listeners from receiving a new message is not ClusterMessage
* emit Failure Event to LifecylceListener
*
* @param msg
* received Message
*/
public boolean accept(Serializable msg, Member sender) {
return (msg instanceof ClusterMessage);
}
public void messageReceived(Serializable message, Member sender) {
ClusterMessage fwd = (ClusterMessage)message;
fwd.setAddress(sender);
messageReceived(fwd);
}
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 (Iterator iter = clusterListeners.iterator(); iter.hasNext();) {
ClusterListener listener = iter.next();
if (listener.accept(message)) {
accepted = true;
listener.messageReceived(message);
}
}
}
if (!accepted && log.isDebugEnabled()) {
if (notifyLifecycleListenerOnFailure) {
Member dest = message.getAddress();
// Notify our interested LifecycleListeners
fireLifecycleEvent(RECEIVE_MESSAGE_FAILURE_EVENT,
new SendMessageData(message, dest, null));
}
log.debug("Message " + message.toString() + " from type "
+ message.getClass().getName()
+ " transfered but no listener registered");
}
return;
}
// --------------------------------------------------------- Logger
public Log getLogger() {
return log;
}
// ------------------------------------------------------------- deprecated
/**
*
* @see org.apache.catalina.Cluster#setProtocol(java.lang.String)
*/
public void setProtocol(String protocol) {
}
/**
* @see org.apache.catalina.Cluster#getProtocol()
*/
public String getProtocol() {
return null;
}
public int getChannelStartOptions() {
return channelStartOptions;
}
public void setChannelStartOptions(int channelStartOptions) {
this.channelStartOptions = channelStartOptions;
}
}
