Examples of org.apache.catalina.tribes.io.ReplicationStream

org.apache.catalina.tribes.io.ReplicationStream
Custom subclass of ObjectInputStream that loads from the class loader for this web application. This allows classes defined only with the web application to be found correctly. @author Craig R. McClanahan @author Bip Thelin @author Filip Hanik @version $Revision: 377484 $, $Date: 2006-02-13 15:00:05 -0600 (Mon, 13 Feb 2006) $

     * @throws IOException
     */
    protected DeltaRequest deserializeDeltaRequest(DeltaSession session, byte[] data) throws ClassNotFoundException, IOException {
        try {
            session.lock();
            ReplicationStream ois = getReplicationStream(data);
            session.getDeltaRequest().readExternal(ois);
            ois.close();
            return session.getDeltaRequest();
        }finally {
            session.unlock();
        }
    }

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         * @throws IOException
         */
        public void applyDiff(byte[] diff, int offset, int length) throws IOException, ClassNotFoundException {
            try {
                lock();
                ReplicationStream stream = ( (ClusterManager) getManager()).getReplicationStream(diff, offset, length);
                ClassLoader contextLoader = Thread.currentThread().getContextClassLoader();
                try {
                    ClassLoader[] loaders = getClassLoaders();
                    if (loaders != null && loaders.length > 0)
                        Thread.currentThread().setContextClassLoader(loaders[0]);

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        return getReplicationStream(data,0,data.length);
    }


    public ReplicationStream getReplicationStream(byte[] data, int offset, int length) throws IOException {
        ByteArrayInputStream fis = new ByteArrayInputStream(data, offset, length);
        return new ReplicationStream(fis, getClassLoaders());
    }

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        return getReplicationStream(data,0,data.length);
    }


    public ReplicationStream getReplicationStream(byte[] data, int offset, int length) throws IOException {
        ByteArrayInputStream fis = new ByteArrayInputStream(data, offset, length);
        return new ReplicationStream(fis, getClassLoaders());
    }

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     * @return The request
     * @throws ClassNotFoundException
     * @throws IOException
     */
    protected DeltaRequest deserializeDeltaRequest(DeltaSession session, byte[] data) throws ClassNotFoundException, IOException {
        ReplicationStream ois = getReplicationStream(data);
        session.getDeltaRequest().readExternal(ois);
        ois.close();
        return session.getDeltaRequest();
    }

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         * @param offset int
         * @param length int
         * @throws IOException
         */
        public void applyDiff(byte[] diff, int offset, int length) throws IOException, ClassNotFoundException {
            ReplicationStream stream = ((ClusterManager)getManager()).getReplicationStream(diff,offset,length);
            getDeltaRequest().readExternal(stream);
            getDeltaRequest().execute(this);
        }

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        return getReplicationStream(data,0,data.length);
    }
    
    public ReplicationStream getReplicationStream(byte[] data, int offset, int length) throws IOException {
        ByteArrayInputStream fis =null;
        ReplicationStream ois = null;
        Loader loader = null;
        ClassLoader classLoader = null;
        //fix to be able to run the DeltaManager
        //stand alone without a container.
        //use the Threads context class loader
        if (container != null)
            loader = container.getLoader();
        if (loader != null)
            classLoader = loader.getClassLoader();
        else
            classLoader = Thread.currentThread().getContextClassLoader();
        //end fix
        fis = new ByteArrayInputStream(data, offset, length);
        if ( classLoader == Thread.currentThread().getContextClassLoader() ) {
            ois = new ReplicationStream(fis, new ClassLoader[] {classLoader});
        } else {
            ois = new ReplicationStream(fis, new ClassLoader[] {classLoader,Thread.currentThread().getContextClassLoader()});
        }
        return ois;
    }

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     */
    protected Session readSession( byte[] data, String sessionId )
    {
        try
        {
            ReplicationStream session_in = getReplicationStream(data);


            Session session = sessionId!=null?this.findSession(sessionId):null;
            boolean isNew = (session==null);
            //clear the old values from the existing session
            if ( session!=null ) {
                ReplicatedSession rs = (ReplicatedSession)session;
                rs.expire(false);  //cleans up the previous values, since we are not doing removes
                session = null;
            }//end if


            if (session==null) {
                session = createSession(null,false, false);
                sessions.remove(session.getIdInternal());
            }
            
            
            boolean hasPrincipal = session_in.readBoolean();
            SerializablePrincipal p = null;
            if ( hasPrincipal )
                p = (SerializablePrincipal)session_in.readObject();
            ((ReplicatedSession)session).readObjectData(session_in);
            if ( hasPrincipal )
                session.setPrincipal(p.getPrincipal(getContainer().getRealm()));
            ((ReplicatedSession)session).setId(sessionId,isNew);
            ReplicatedSession rsession = (ReplicatedSession)session;

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     */
    @Override
    public void applyDiff(byte[] diff, int offset, int length) throws IOException, ClassNotFoundException {
        try {
            lock();
            ReplicationStream stream = ( (ClusterManager) getManager()).getReplicationStream(diff, offset, length);
            ClassLoader contextLoader = Thread.currentThread().getContextClassLoader();
            try {
                ClassLoader[] loaders = getClassLoaders();
                if (loaders != null && loaders.length > 0)
                    Thread.currentThread().setContextClassLoader(loaders[0]);

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    /**
     * Load sessionID
     * @throws IOException if an input/output error occurs
     */
    protected String deserializeSessionId(byte[] data) throws IOException {
        ReplicationStream ois = getReplicationStream(data);
        String sessionId = ois.readUTF();
        ois.close();
        return sessionId;
    }

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Related Classes of org.apache.catalina.tribes.io.ReplicationStream

org.apache.catalina.ha.session.BackupManager

org.apache.catalina.ha.session.ClusterManagerBase

org.apache.catalina.ha.session.DeltaManager

org.apache.catalina.ha.session.DeltaSession

org.apache.catalina.ha.session.SimpleTcpReplicationManager

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