Examples of org.apache.sshd.common.Channel

org.apache.sshd.common.Channel
TODO Add javadoc @author Apache MINA SSHD Project

     *
     * @param buffer the buffer containing the request
     * @throws Exception if an error occurs
     */
    protected void channelRequest(Buffer buffer) throws IOException {
        Channel channel = getChannel(buffer);
        channel.handleRequest(buffer);
    }

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     *
     * @param buffer the buffer containing the packet
     * @throws Exception if an error occurs
     */
    protected void channelFailure(Buffer buffer) throws Exception {
        Channel channel = getChannel(buffer);
        channel.handleFailure();
    }

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     * @return the target channel
     * @throws IOException if the channel does not exists
     */
    protected Channel getChannel(Buffer buffer) throws IOException {
        int recipient = buffer.getInt();
        Channel channel = channels.get(recipient);
        if (channel == null) {
            buffer.rpos(buffer.rpos() - 5);
            SshConstants.Message cmd = buffer.getCommand();
            throw new SshException("Received " + cmd + " on unknown channel " + recipient);
        }

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            buf.putString("");
            writePacket(buf);
            return;
        }


        final Channel channel = NamedFactory.Utils.create(getServerFactoryManager().getChannelFactories(), type);
        if (channel == null) {
            Buffer buf = createBuffer(SshConstants.Message.SSH_MSG_CHANNEL_OPEN_FAILURE);
            buf.putInt(id);
            buf.putInt(SshConstants.SSH_OPEN_UNKNOWN_CHANNEL_TYPE);
            buf.putString("Unsupported channel type: " + type);
            buf.putString("");
            writePacket(buf);
            return;
        }


        final int channelId = getNextChannelId();
        channels.put(channelId, channel);
        channel.init(this, channelId);
        channel.open(id, rwsize, rmpsize, buffer).addListener(new SshFutureListener<OpenFuture>() {
            public void operationComplete(OpenFuture future) {
                try {
                    if (future.isOpened()) {
                        Buffer buf = createBuffer(SshConstants.Message.SSH_MSG_CHANNEL_OPEN_CONFIRMATION);
                        buf.putInt(id);
                        buf.putInt(channelId);
                        buf.putInt(channel.getLocalWindow().getSize());
                        buf.putInt(channel.getLocalWindow().getPacketSize());
                        writePacket(buf);
                    } else if (future.getException() != null) {
                        Buffer buf = createBuffer(SshConstants.Message.SSH_MSG_CHANNEL_OPEN_FAILURE);
                        buf.putInt(id);
                        if (future.getException() instanceof OpenChannelException) {

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        channels.put(channelId, channel);
        return channelId;
    }


    protected void channelOpenConfirmation(Buffer buffer) throws IOException {
        Channel channel = getChannel(buffer);
        log.info("Received SSH_MSG_CHANNEL_OPEN_CONFIRMATION on channel {}", channel.getId());
        int recipient = buffer.getInt();
        int rwsize = buffer.getInt();
        int rmpsize = buffer.getInt();
        channel.handleOpenSuccess(recipient, rwsize, rmpsize, buffer);
    }

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     *
     * @param buffer the buffer containing the data
     * @throws Exception if an error occurs
     */
    protected void channelData(Buffer buffer) throws Exception {
        Channel channel = getChannel(buffer);
        channel.handleData(buffer);
    }

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     *
     * @param buffer the buffer containing the data
     * @throws Exception if an error occurs
     */
    protected void channelExtendedData(Buffer buffer) throws Exception {
        Channel channel = getChannel(buffer);
        channel.handleExtendedData(buffer);
    }

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     * @param buffer the buffer containing the window adjustement parameters
     * @throws Exception if an error occurs
     */
    protected void channelWindowAdjust(Buffer buffer) throws Exception {
        try {
            Channel channel = getChannel(buffer);
            channel.handleWindowAdjust(buffer);
        } catch (SshException e) {
            log.info(e.getMessage());
        }
    }

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     *
     * @param buffer the buffer containing the packet
     * @throws Exception if an error occurs
     */
    protected void channelEof(Buffer buffer) throws Exception {
        Channel channel = getChannel(buffer);
        channel.handleEof();
    }

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     *
     * @param buffer the buffer containing the packet
     * @throws Exception if an error occurs
     */
    protected void channelClose(Buffer buffer) throws Exception {
        Channel channel = getChannel(buffer);
        channel.handleClose();
        unregisterChannel(channel);
    }

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Related Classes of org.apache.sshd.common.Channel

org.apache.sshd.client.session.ClientSessionImpl

org.apache.sshd.common.session.AbstractConnectionService

org.apache.sshd.common.session.AbstractSession

org.apache.sshd.server.session.ServerSession

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