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.

            this.closeHandler = closeHandler;
        }


        @Override
        protected Channel openChannel(final Connection connection, final String serviceType, final OptionMap options) throws IOException {
            final Channel channel = super.openChannel(connection, serviceType, options);
            channel.addCloseHandler(closeHandler);
            return channel;
        }

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    private volatile Channel channel;
    private volatile boolean closed;


    @Override
    public Channel getChannel() throws IOException {
        final Channel channel = this.channel;
        if(channel == null && closed) {
            throw ProtocolMessages.MESSAGES.channelClosed();
        }
        return channel;
    }

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     *
     * @return the channel
     * @throws IOException for any error
     */
    protected Channel awaitChannel() throws IOException {
        Channel channel = this.channel;
        if(channel != null) {
            return channel;
        }
        synchronized (lock) {
            for(;;) {

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            this.connectionManager = ProtocolConnectionManager.create(configuration, this);
        }


        @Override
        public Channel getChannel() throws IOException {
            final Channel channel = super.getChannel();
            if(channel != null) {
                return channel;
            }
            // Try to connect and wait for the channel
            connectionManager.connect();

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            return awaitChannel();
        }


        @Override
        public void connectionOpened(final Connection connection) throws IOException {
            final Channel channel = openChannel(connection, serviceType, channelOptions);
            if(setChannel(channel)) {
                channel.receiveMessage(receiver);
            } else {
                channel.closeAsync();
            }
        }

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        return true;
    }


   private void connectUsingRemoting(CommandContext cmdCtx, RemotingMBeanServerConnection rmtMBeanSvrConn) throws IOException, CliInitializationException {
        Connection conn = rmtMBeanSvrConn.getConnection();
        Channel channel = conn.openChannel("management", OptionMap.EMPTY).get();
        ModelControllerClient modelCtlrClient = ExistingChannelModelControllerClient.createReceiving(channel, createExecutor());
        cmdCtx.bindClient(modelCtlrClient);
    }

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        this.clientMappingRegistryCollector = clientMappingRegistryCollector;
        this.remoteAsyncInvocationCancelStatus = asyncInvocationCancelStatusService;
    }


    public void startReceiving() {
        final Channel channel = this.channelAssociation.getChannel();
        channel.addCloseHandler(new ChannelCloseHandler());


        channel.receiveMessage(this);
        // listen to module availability/unavailability events
        this.deploymentRepository.addListener(this);
        // listen to new clusters (a.k.a groups) being started/stopped
        this.clientMappingRegistryCollector.addListener(this);
        // Send the cluster topology for existing clusters in the registry

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        return channelHandler;
    }


    @Override
    public Channel getChannel() throws IOException {
        final Channel channel = super.getChannel();
        if(channel == null) {
            // Fail fast, don't try to await a new channel
            throw ProtocolMessages.MESSAGES.channelClosed();
        }
        return channel;

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        }
    }


    @Override
    public void connectionOpened(final Connection connection) throws IOException {
        final Channel channel = openChannel(connection, SERVER_CHANNEL_TYPE, configuration.getOptionMap());
        if(setChannel(channel)) {
            channel.receiveMessage(channelHandler.getReceiver());
            channel.addCloseHandler(channelHandler);
        } else {
            channel.closeAsync();
        }
    }

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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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