Examples of org.apache.catalina.cluster.Member

org.apache.catalina.cluster.Member
The Member interface, defines a member in the Cluster. A member is a Tomcat process that participates in session replication.
Each member can carry a set of properties, defined by the actual implementation.
For TCP replication has been targeted for the first release, the hostname and listen port of the member is defined as hardcoded stuff.
The Member interface together with MembershipListener, MembershipService are interfaces used to switch out the service used to establish membership in between the cluster nodes. @author Filip Hanik @version $Revision: 1.4 $, $Date: 2004/02/27 14:58:55 $


    public void send(SessionMessage msg, Member dest) {
        try
        {
            msg.setAddress(service.getLocalMember());
            Member destination = dest;
            if ( (destination == null) && (msg.getEventType() == SessionMessage.EVT_GET_ALL_SESSIONS) ) {
                if (service.getMembers().length > 0)
                    destination = service.getMembers()[0];
            }
            msg.setTimestamp(System.currentTimeMillis());
            java.io.ByteArrayOutputStream outs = new java.io.ByteArrayOutputStream();
            java.io.ObjectOutputStream out = new java.io.ObjectOutputStream(outs);
            out.writeObject(msg);
            byte[] data = outs.toByteArray();
            if(destination != null) {
                  Member tcpdest = dest;
                  if ( (tcpdest != null) && (!service.getLocalMember().equals(tcpdest)))  {
                       mReplicationTransmitter.sendMessage(msg.getSessionID(),
                                                           data,
                                                           InetAddress.getByName(tcpdest.getHost()),
                                                           tcpdest.getPort());
                  }//end if
            }
            else {
                mReplicationTransmitter.sendMessage(msg.getSessionID(),data);
            }

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    public void memberAdded(Member member) {
        try  {
            log.info("Replication member added:" + member);
            Member mbr = member;
            mReplicationTransmitter.add(IDataSenderFactory.getIDataSender(replicationMode,mbr));
        } catch ( Exception x ) {
            log.error("Unable to connect to replication system.",x);
        }

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    public void memberDisappeared(Member member)
    {
        log.info("Received member disappeared:"+member);
        try
        {
            Member mbr = member;
            mReplicationTransmitter.remove(InetAddress.getByName(mbr.getHost()),
                                 mbr.getPort());
        }
        catch ( Exception x )
        {
            log.error("Unable remove cluster node from replication system.",x);
        }

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                log.info("Starting... no cluster associated with this context:"+getName());
                return;
            }


            if (cluster.getMembers().length > 0) {
                Member mbr = cluster.getMembers()[0];
                SessionMessage msg =
                    new SessionMessage(this.getName(),
                                       SessionMessage.EVT_GET_ALL_SESSIONS,
                                       null,
                                       "GET-ALL");

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    public void send(ClusterMessage msg, Member dest) {
        try
        {
            msg.setAddress(membershipService.getLocalMember());
            Member destination = dest;
            
            if ( msg instanceof SessionMessage ) {
                SessionMessage smsg = (SessionMessage) msg;
                //if we request session state, send to the oldest of members
                if ((destination == null) &&
                    (smsg.getEventType() == SessionMessage.EVT_GET_ALL_SESSIONS) &&
                    (membershipService.getMembers().length > 0)) {
                        destination = membershipService.getMembers()[0];
                }//end if
            }//end if
            msg.setTimestamp(System.currentTimeMillis());
            java.io.ByteArrayOutputStream outs = new java.io.ByteArrayOutputStream();
            java.io.ObjectOutputStream out = new java.io.ObjectOutputStream(outs);
            out.writeObject(msg);
            byte[] data = outs.toByteArray();
            if(destination != null) {
                  Member tcpdest = dest;
                  if ( (tcpdest != null) && (!membershipService.getLocalMember().equals(tcpdest)))  {
                       clusterSender.sendMessage(msg.getUniqueId(), data, tcpdest);
                  }//end if
            }
            else {

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            getDeployer().remove(contextPath, true);
            //step 1. Install it locally
        getDeployer().install(contextPath, war);
        //step 2. Send it to each member in the cluster
        Member[] members = getCluster().getMembers();
        Member localMember = getCluster().getLocalMember();
        FileMessageFactory factory = FileMessageFactory.getInstance(new File(
            war.getFile()), false);
        FileMessage msg = new FileMessage(localMember, war.getFile(),
                                          contextPath);
        msg = factory.readMessage(msg);

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        //step 1. Remove it locally
        if (getDeployer().findDeployedApp(contextPath) != null)
            getDeployer().remove(contextPath, undeploy);
            //step 2. Send it to each member in the cluster
        Member[] members = getCluster().getMembers();
        Member localMember = getCluster().getLocalMember();
        UndeployMessage msg = new UndeployMessage(localMember,
                                                  System.currentTimeMillis(),
                                                  "Undeploy:" + contextPath +
                                                  ":" +
                                                  System.currentTimeMillis(),

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                log.error("Starting... no cluster associated with this context:"+getName());
                return;
            }


            if (cluster.getMembers().length > 0) {
                Member mbr = cluster.getMembers()[0];
                SessionMessage msg =
                    new SessionMessageImpl(this.getName(),
                                       SessionMessage.EVT_GET_ALL_SESSIONS,
                                       null,
                                       "GET-ALL",

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                return;
            }
            cluster.addManager(getName(),this);


            if (cluster.getMembers().length > 0) {
                Member mbr = cluster.getMembers()[0];
                SessionMessage msg =
                    new SessionMessageImpl(this.getName(),
                                       SessionMessage.EVT_GET_ALL_SESSIONS,
                                       null,
                                       "GET-ALL",

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        assertEquals(session, manager.findSession(session.getId()));
        for (int i = 0; i < 10; i++) {
            manager.createSession(null,false);
        }
        assertEquals(11,manager.getSessionCounter());
        Member sender = new McastMember("test","d10","localhost",8080,3000);
        MockCluster cluster = new MockCluster ();
        manager.setCluster(cluster);
        manager.setSendAllSessionsSize(2);
        manager.handleGET_ALL_SESSIONS(null,sender);
        // send all session activ - 6 sessions message and one transfer complete

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Related Classes of org.apache.catalina.cluster.Member

org.apache.catalina.cluster.deploy.FarmWarDeployer

org.apache.catalina.cluster.session.DeltaManager

org.apache.catalina.cluster.session.DeltaManagerTest

org.apache.catalina.cluster.session.SimpleTcpReplicationManager

org.apache.catalina.cluster.tcp.SimpleTcpCluster

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