Examples of org.jboss.dna.graph.connector.federation.ForkRequestProcessor$Channel

Package org.jboss.dna.graph.connector.federation

Examples of org.jboss.dna.graph.connector.federation.ForkRequestProcessor$Channel

org.jboss.remoting3.Channel
Represents the channel for a specific source into which this processor submits the requests for that source. To use, create a Channel, {@link Channel#start(ExecutorService,ExecutionContext,RepositoryConnectionFactory) start it}, and then {@link Channel#add(Request) add} requests (optionally with a {@link Channel#add(Request,CountDownLatch) latch} or via a{@link Channel#addAndAwait(Request) add and await}). Finally, call {@link Channel#done()} when there are no more requests.
When the channel is {@link Channel#start(ExecutorService,ExecutionContext,RepositoryConnectionFactory) started}, it creates a {@link Callable} and submits it to the supplied {@link ExecutorService}. (The resulting {@link Future} is thencaptured so that the channel can be {@link Channel#cancel(boolean) cancelled}.) The Callable obtains a {@link RepositoryConnection connection} to the channel's source, and then has the connection process a single{@link CompositeRequest} that fronts the queue of Request instances added to this channel. Because a blocking queue isused, the CompositeRequest's {@link CompositeRequest#iterator() iterator} blocks (on {@link Iterator#hasNext()}) until the next request is available. When {@link Channel#done()} is called, the iterator stops blocking and completes.

        if(server == null) {
            ROOT_LOGGER.noServerAvailable(serverName);
            return;
        }
        try {
            final Channel channel = channelAssociation.getChannel();
            channel.addCloseHandler(new CloseHandler<Channel>() {


                public void handleClose(final Channel closed, final IOException exception) {
                    server.callbackUnregistered();
                    domainController.unregisterRunningServer(server.getServerName());
                }

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        this.serverProcessName = serverProcessName;
    }


    /** {@inheritDoc} */
    public synchronized void start(final StartContext context) throws StartException {
        final Channel channel = hcChannel.getValue();
        final HostControllerServerHandler handler = new HostControllerServerHandler(controller.getValue(), executor);
        channel.addCloseHandler(new CloseHandler<Channel>() {
            @Override
            public void handleClose(final Channel closed, final IOException exception) {
                handler.shutdownNow();
            }
        });
        // Notify MSC asynchronously when the server gets registered
        context.asynchronous();
        try {
            handler.executeRegistrationRequest(channel, new ServerRegisterRequest(), context);
        } catch (Exception e) {
            throw ServerMessages.MESSAGES.failedToConnectToHC(e);
        }
        this.handler = handler;
        channel.receiveMessage(ManagementChannelReceiver.createDelegating(handler));
    }

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    }


    private boolean connectUsingRemoting(CommandContext cmdCtx, RemotingMBeanServerConnection rmtMBeanSvrConn)
            throws IOException, CliInitializationException {
        Connection conn = rmtMBeanSvrConn.getConnection();
        Channel channel;
        final IoFuture<Channel> futureChannel = conn.openChannel("management", OptionMap.EMPTY);
        IoFuture.Status result = futureChannel.await(5, TimeUnit.SECONDS);
        if (result == IoFuture.Status.DONE) {
            channel = futureChannel.get();
        } else {

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        return ProtocolConnectionUtils.connectSync(config);
    }


    @Override
    public void connectionOpened(final Connection connection) throws IOException {
        final Channel channel = openChannel(connection, CHANNEL_SERVICE_TYPE, configuration.getOptionMap());
        if(setChannel(channel)) {
            channel.receiveMessage(channelHandler.getReceiver());
            channel.addCloseHandler(channelHandler);
            try {
                // Start the registration process
                channelHandler.executeRequest(new RegisterHostControllerRequest(), null).getResult().get();
            } catch (Exception e) {
                if(e.getCause() instanceof IOException) {
                    throw (IOException) e.getCause();
                }
                throw new IOException(e);
            }
            // Registered
            registered();
        } else {
            channel.closeAsync();
        }
    }

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                    fail = true;
                    safeCancel(future);
                    HostControllerLogger.DOMAIN_LOGGER.masterHostControllerUnreachable(TIMEOUT);
                } finally {
                    if (fail) {
                        Channel channel = null;
                        try {
                            channel = channelHandler.getChannel();
                        } catch (IOException e) {
                            // ignore; shouldn't happen as the channel is already established if this task is running
                        }

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        @Override
        public void handleRequest(final DataInput input, final ActiveOperation.ResultHandler<Void> resultHandler, final ManagementRequestContext<Void> context) throws IOException {
            expectHeader(input, DomainServerProtocol.PARAM_SERVER_NAME);
            final String serverName = input.readUTF();
            final Channel channel = context.getChannel();
            CONTROLLER_MANAGEMENT_LOGGER.serverRegistered(serverName, channel);
            context.executeAsync(new ManagementRequestContext.AsyncTask<Void>() {
                @Override
                public void execute(final ManagementRequestContext<Void> requestContext) throws Exception {
                    final OperationStepHandler stepHandler = new OperationStepHandler() {

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                        HostControllerLogger.DOMAIN_LOGGER.slaveHostControllerUnreachable(hostName, timeout);
                    }
                    safeCancel(future);
                } finally {
                    if (fail) {
                        Channel channel = null;
                        try {
                            channel = channelHandler.getChannel();
                        } catch (IOException e) {
                            // ignore; shouldn't happen as the channel is already established if this task is running
                        }

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            ROOT_LOGGER.noServerAvailable(serverName);
            return null;
        }
        try {
            final TransactionalProtocolClient client = server.channelRegistered(channelAssociation);
            final Channel channel = channelAssociation.getChannel();
            channel.addCloseHandler(new CloseHandler<Channel>() {


                public void handleClose(final Channel closed, final IOException exception) {
                    final boolean shuttingDown = shutdown || connectionFinished;
                    // Unregister right away
                    if(server.callbackUnregistered(client, shuttingDown)) {

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    public T openChannel(String channelName) throws IOException {
        if (connection == null) {
            throw new IllegalStateException("Not connected");
        }
        Channel channel = connection.openChannel(channelName, OptionMap.EMPTY).get();
        T wrapped = channelFactory.create(channelName, channel);
        channels.add(wrapped);
        return wrapped;
    }

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    public T openChannel(String channelName) throws IOException {
        if (connection == null) {
            throw MESSAGES.notConnected();
        }
        Channel channel = connection.openChannel(channelName, OptionMap.EMPTY).get();
        T wrapped = channelFactory.create(channelName, channel);
        channels.add(wrapped);
        return wrapped;
    }

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