Examples with NotYetConnectedException java.nio.channels.NotYetConnectedException used on opensource projects

Example 16 with NotYetConnectedException

use of java.nio.channels.NotYetConnectedException in project openhab1-addons by openhab.

the class AbstractDatagramChannelBinding method execute.

/**
     * @{inheritDoc}
     */
@Override
protected void execute() {
    // Cycle through the Items and setup channels if required
    for (P provider : providers) {
        for (String itemName : provider.getItemNames()) {
            for (Command aCommand : provider.getAllCommands(itemName)) {
                String remoteHost = provider.getHost(itemName, aCommand);
                String remotePort = provider.getPortAsString(itemName, aCommand);
                Direction direction = provider.getDirection(itemName, aCommand);
                InetSocketAddress remoteAddress = null;
                if (!(remoteHost.equals("*") || remotePort.equals("*"))) {
                    remoteAddress = new InetSocketAddress(remoteHost, Integer.parseInt(remotePort));
                }
                Channel newChannel = null;
                Channel existingChannel = null;
                if (useAddressMask && (remoteHost.equals("*") || remotePort.equals("*"))) {
                    newChannel = new Channel(itemName, aCommand, remoteHost, remotePort, provider.getDirection(itemName, aCommand), false, null, false, null);
                    existingChannel = channels.get(itemName, aCommand, direction, remoteHost, remotePort);
                } else {
                    newChannel = new Channel(itemName, aCommand, remoteAddress, provider.getDirection(itemName, aCommand), false, null, false, null);
                    existingChannel = channels.get(itemName, aCommand, direction, remoteAddress);
                }
                if (existingChannel == null) {
                    if (direction == Direction.IN) {
                        boolean assigned = false;
                        if (useAddressMask && (remoteHost.equals("*") || remotePort.equals("*"))) {
                            logger.warn("When using address masks we will not verify if we are already listening to similar incoming connections");
                            logger.info("We will accept data coming from the remote end {}:{}", remoteHost, remotePort);
                        } else {
                            if (channels.contains(itemName, aCommand, Direction.IN, remoteAddress)) {
                                logger.warn("We already listen for incoming connections from {}", remoteAddress);
                            } else {
                                if (itemShareChannels) {
                                    Channel firstChannel = channels.getFirstServed(itemName, direction, remoteAddress);
                                    if (firstChannel != null) {
                                        newChannel.channel = firstChannel.channel;
                                        assigned = true;
                                    }
                                }
                                if (bindingShareChannels) {
                                    Channel firstChannel = channels.getFirstServed(direction, remoteAddress);
                                    if (firstChannel != null) {
                                        newChannel.channel = firstChannel.channel;
                                        assigned = true;
                                    }
                                }
                                if (directionsShareChannels) {
                                    Channel firstChannel = channels.getFirstServed(remoteAddress);
                                    if (firstChannel != null) {
                                        newChannel.channel = firstChannel.channel;
                                        assigned = true;
                                    }
                                }
                            }
                        }
                        if (!assigned) {
                            newChannel.channel = listenerChannel;
                        }
                        if (useAddressMask && (remoteHost.equals("*") || remotePort.equals("*"))) {
                            logger.info("We will accept data coming from the remote end with mask {}:{}", remoteHost, remotePort);
                        } else {
                            logger.info("We will accept data coming from the remote end {}", remoteAddress);
                        }
                        logger.debug("Setting up the inbound channel {}", newChannel);
                        channels.add(newChannel);
                    } else if (direction == Direction.OUT) {
                        boolean assigned = false;
                        if (useAddressMask && (remoteHost.equals("*") || remotePort.equals("*"))) {
                            logger.error("We do not accept outgoing connections for Items that do use address masks");
                        } else {
                            channels.add(newChannel);
                            if (newChannel.channel == null) {
                                if (itemShareChannels) {
                                    Channel firstChannel = channels.getFirstServed(itemName, direction, remoteAddress);
                                    if (firstChannel != null) {
                                        newChannel.channel = firstChannel.channel;
                                        assigned = true;
                                    }
                                }
                                if (bindingShareChannels) {
                                    Channel firstChannel = channels.getFirstServed(direction, remoteAddress);
                                    if (firstChannel != null) {
                                        newChannel.channel = firstChannel.channel;
                                        assigned = true;
                                    }
                                }
                                if (assigned) {
                                    logger.debug("Setting up the outbound assigned channel {} ", newChannel);
                                }
                            }
                            synchronized (this) {
                                if (!assigned || newChannel.channel == null) {
                                    DatagramChannel newDatagramChannel = null;
                                    try {
                                        newDatagramChannel = DatagramChannel.open();
                                    } catch (IOException e2) {
                                        logger.error("An exception occurred while opening a channel: {}", e2.getMessage());
                                    }
                                    try {
                                        newDatagramChannel.configureBlocking(false);
                                    // setKeepAlive(true);
                                    } catch (IOException e) {
                                        logger.error("An exception occurred while configuring a channel: {}", e.getMessage());
                                    }
                                    synchronized (selector) {
                                        selector.wakeup();
                                        try {
                                            newDatagramChannel.register(selector, newDatagramChannel.validOps());
                                        } catch (ClosedChannelException e1) {
                                            logger.error("An exception occurred while registering a selector: {}", e1.getMessage());
                                        }
                                    }
                                    newChannel.channel = newDatagramChannel;
                                    logger.debug("Setting up the outbound channel {}", newChannel);
                                    try {
                                        logger.info("'Connecting' the channel {} ", newChannel);
                                        newDatagramChannel.connect(remoteAddress);
                                    } catch (IOException e) {
                                        logger.error("An exception occurred while connecting a channel: {}", e.getMessage());
                                    }
                                } else {
                                    logger.info("There is already an active channel {} for the remote end {}", newChannel.channel, newChannel.remote);
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    // Check on channels for which we have to process data
    synchronized (selector) {
        try {
            // Wait for an event
            selector.selectNow();
        } catch (IOException e) {
            logger.error("An exception occurred while Selecting ({})", e.getMessage());
        }
    }
    // Get list of selection keys with pending events
    Iterator<SelectionKey> it = selector.selectedKeys().iterator();
    // Process each key at a time
    while (it.hasNext()) {
        SelectionKey selKey = it.next();
        it.remove();
        if (selKey.isValid()) {
            DatagramChannel theDatagramChannel = (DatagramChannel) selKey.channel();
            Channel theChannel = channels.get(theDatagramChannel);
            if (selKey.isReadable()) {
                InetSocketAddress clientAddress = null;
                ByteBuffer readBuffer = ByteBuffer.allocate(maximumBufferSize);
                int numberBytesRead = 0;
                boolean error = false;
                if (selKey == listenerKey) {
                    try {
                        clientAddress = (InetSocketAddress) theDatagramChannel.receive(readBuffer);
                        logger.debug("Received {} on the listener port from {}", new String(readBuffer.array()), clientAddress);
                        numberBytesRead = readBuffer.position();
                    } catch (Exception e) {
                        error = true;
                    }
                } else {
                    try {
                        // TODO: Additional code to split readBuffer in multiple parts, in case the data send by the
                        // remote end is not correctly fragemented. Could be handed of to implementation class if
                        // for example, the buffer needs to be split based on a special character like line feed or
                        // carriage return
                        numberBytesRead = theDatagramChannel.read(readBuffer);
                        logger.debug("Received {} bytes ({}) on the channel {}->{}", new Object[] { numberBytesRead, new String(readBuffer.array()), theDatagramChannel.getLocalAddress(), theDatagramChannel.getRemoteAddress() });
                    } catch (NotYetConnectedException e) {
                        try {
                            logger.warn("The channel for {} has no connection pending ({})", theDatagramChannel.getRemoteAddress(), e.getMessage());
                        } catch (IOException e1) {
                            logger.error("An exception occurred while getting the remote address of channel {} ({})", theDatagramChannel, e1.getMessage());
                        }
                        error = true;
                    } catch (IOException e) {
                        // If some other I/O error occurs
                        try {
                            logger.warn("The channel for {} has encountered an unknown IO Exception: {}", theDatagramChannel.getRemoteAddress(), e.getMessage());
                        } catch (IOException e1) {
                            logger.error("An exception occurred while getting the remote address of channel {} ({})", theDatagramChannel, e1.getMessage());
                        }
                        error = true;
                    }
                }
                if (numberBytesRead == -1) {
                    try {
                        if (selKey != listenerKey) {
                            theDatagramChannel.close();
                        }
                    } catch (IOException e) {
                        try {
                            logger.warn("The channel for {} is closed ({})", theDatagramChannel.getRemoteAddress(), e.getMessage());
                        } catch (IOException e1) {
                            logger.error("An exception occurred while getting the remote address of channel {} ({})", theDatagramChannel, e1.getMessage());
                        }
                    }
                    error = true;
                }
                if (error) {
                    if (selKey != listenerKey) {
                        Scheduler scheduler = null;
                        try {
                            scheduler = StdSchedulerFactory.getDefaultScheduler();
                        } catch (SchedulerException e1) {
                            logger.error("An exception occurred while getting the Quartz scheduler: {}", e1.getMessage());
                        }
                        JobDataMap map = new JobDataMap();
                        map.put("Channel", theChannel);
                        map.put("Binding", this);
                        JobDetail job = null;
                        Trigger trigger = null;
                        job = newJob(ReconnectJob.class).withIdentity(Integer.toHexString(hashCode()) + "-Reconnect-" + Long.toString(System.currentTimeMillis()), this.toString()).usingJobData(map).build();
                        trigger = newTrigger().withIdentity(Integer.toHexString(hashCode()) + "-Reconnect-" + Long.toString(System.currentTimeMillis()), this.toString()).startAt(futureDate(reconnectInterval, IntervalUnit.SECOND)).build();
                        try {
                            if (job != null && trigger != null && selKey != listenerKey) {
                                if (!theChannel.isReconnecting) {
                                    channels.setAllReconnecting(theDatagramChannel, true);
                                    scheduler.scheduleJob(job, trigger);
                                }
                            }
                        } catch (SchedulerException e) {
                            logger.error("An exception occurred while scheduling a job with the Quartz Scheduler {}", e.getMessage());
                        }
                    }
                } else {
                    ArrayList<Channel> channelsToServe = new ArrayList<Channel>();
                    if (selKey == listenerKey) {
                        channelsToServe = channels.getAll(Direction.IN, clientAddress);
                        if (channelsToServe.size() == 0) {
                            logger.warn("Received data {} from an undefined remote end {}. We will not process it", new String(readBuffer.array()), clientAddress);
                        }
                    } else {
                        channelsToServe = channels.getAll(theDatagramChannel);
                    }
                    if (channelsToServe.size() > 0) {
                        readBuffer.flip();
                        if (channels.isBlocking(theDatagramChannel)) {
                            // if we are in a blocking operation, we get are now finished and we have to reset the
                            // flag. The read buffer will be returned to the instance
                            // that initiated the write opreation - it has to parse the buffer itself
                            // find the Channel with this DGC that is holding a Blocking flag
                            theChannel = channels.getBlocking(theDatagramChannel);
                            theChannel.buffer = readBuffer;
                        } else {
                            for (Channel aChannel : channelsToServe) {
                                if (useAddressMask) {
                                    aChannel.lastRemote = clientAddress;
                                }
                                // if not, then we parse the buffer as ususal
                                parseChanneledBuffer(aChannel, readBuffer);
                            }
                        }
                    } else {
                        try {
                            if (selKey == listenerKey) {
                                logger.warn("No channel is active or defined for the data we received from {}. It will be discarded.", clientAddress);
                            } else {
                                logger.warn("No channel is active or defined for the data we received from {}. It will be discarded.", theDatagramChannel.getRemoteAddress());
                            }
                        } catch (IOException e) {
                            logger.error("An exception occurred while getting the remote address of channel {} ({})", theDatagramChannel, e.getMessage());
                        }
                    }
                }
            } else if (selKey.isWritable()) {
                WriteBufferElement theElement = null;
                if (selKey == listenerKey) {
                    Iterator<WriteBufferElement> iterator = writeQueue.iterator();
                    while (iterator.hasNext()) {
                        WriteBufferElement anElement = iterator.next();
                        if (anElement.channel.channel.equals(listenerChannel)) {
                            theElement = anElement;
                            break;
                        }
                    }
                }
                // check if any of the Channel using the DatagramChannel is blocking the DGC in a R/W operation
                boolean isBlocking = channels.isBlocking(theDatagramChannel);
                if (isBlocking) {
                // if this channel is already flagged as being in a blocked write/read operation, we skip this
                // selKey
                } else {
                    if (selKey != listenerKey) {
                        Iterator<WriteBufferElement> iterator = writeQueue.iterator();
                        while (iterator.hasNext()) {
                            WriteBufferElement anElement = iterator.next();
                            if (anElement.channel.channel.equals(theDatagramChannel)) {
                                theElement = anElement;
                                break;
                            }
                        }
                    }
                    if (theElement != null && theElement.buffer != null) {
                        logger.debug("Picked {} from the queue", theElement);
                        if (theElement.isBlocking) {
                            theElement.channel.isBlocking = true;
                        }
                        boolean error = false;
                        theElement.buffer.rewind();
                        if (selKey == listenerKey) {
                            try {
                                if (useAddressMask && theElement.channel.remote == null) {
                                    if (theElement.channel.lastRemote != null) {
                                        logger.debug("Sending {} for the masked inbound channel {}:{} to the remote address {}", new Object[] { new String(theElement.buffer.array()), theElement.channel.host, theElement.channel.port, theElement.channel.lastRemote });
                                        listenerChannel.send(theElement.buffer, theElement.channel.lastRemote);
                                    } else {
                                        logger.warn("I do not know where to send the data {}", new String(theElement.buffer.array()));
                                    }
                                } else {
                                    logger.debug("Sending {} for the inbound channel {}:{} to the remote address {}", new Object[] { new String(theElement.buffer.array()), theElement.channel.host, theElement.channel.port, theElement.channel.remote });
                                    listenerChannel.send(theElement.buffer, theElement.channel.remote);
                                }
                            } catch (IOException e) {
                                if (theElement.channel.lastRemote != null) {
                                    logger.error("An exception occurred while sending data to the remote end {} ({})", theElement.channel.lastRemote, e.getMessage());
                                } else {
                                    logger.error("An exception occurred while sending data to the remote end {} ({})", theElement.channel.remote, e.getMessage());
                                }
                            }
                        } else {
                            try {
                                logger.debug("Sending {} for the outbound channel {}:{} to the remote address {}", new Object[] { new String(theElement.buffer.array()), theElement.channel.host, theElement.channel.port, theElement.channel.remote });
                                theDatagramChannel.write(theElement.buffer);
                            } catch (NotYetConnectedException e) {
                                logger.warn("The channel for {} has no connection pending ({})", theElement.channel.remote, e.getMessage());
                                error = true;
                            } catch (ClosedChannelException e) {
                                // If some other I/O error occurs
                                logger.warn("The channel for {} is closed ({})", theElement.channel.remote, e.getMessage());
                                error = true;
                            } catch (IOException e) {
                                // If some other I/O error occurs
                                logger.warn("The channel for {} has encountered an unknown IO Exception: {}", theElement.channel.remote, e.getMessage());
                                error = true;
                            }
                        }
                        if (error) {
                            if (selKey != listenerKey) {
                                Scheduler scheduler = null;
                                try {
                                    scheduler = StdSchedulerFactory.getDefaultScheduler();
                                } catch (SchedulerException e1) {
                                    logger.error("An exception occurred while getting the Quartz scheduler: {}", e1.getMessage());
                                }
                                JobDataMap map = new JobDataMap();
                                map.put("Channel", theElement.channel);
                                map.put("Binding", this);
                                JobDetail job = null;
                                Trigger trigger = null;
                                job = newJob(ReconnectJob.class).withIdentity(Integer.toHexString(hashCode()) + "-Reconnect-" + Long.toString(System.currentTimeMillis()), this.toString()).usingJobData(map).build();
                                trigger = newTrigger().withIdentity(Integer.toHexString(hashCode()) + "-Reconnect-" + Long.toString(System.currentTimeMillis()), this.toString()).startAt(futureDate(reconnectInterval, IntervalUnit.SECOND)).build();
                                try {
                                    if (job != null && trigger != null && selKey != listenerKey) {
                                        if (!theElement.channel.isReconnecting) {
                                            channels.setAllReconnecting(theElement.channel.channel, true);
                                            scheduler.scheduleJob(job, trigger);
                                        }
                                    }
                                } catch (SchedulerException e) {
                                    logger.error("An exception occurred while scheduling a job with the Quartz Scheduler {}", e.getMessage());
                                }
                            }
                        } else {
                            if (theElement != null) {
                                writeQueue.remove(theElement);
                            }
                        }
                    }
                }
            }
        }
    }
}

Example 17 with NotYetConnectedException

use of java.nio.channels.NotYetConnectedException in project netty by netty.

the class OioByteStreamChannel method doWriteBytes.

@Override
protected void doWriteBytes(ByteBuf buf) throws Exception {
    OutputStream os = this.os;
    if (os == null) {
        throw new NotYetConnectedException();
    }
    buf.readBytes(os, buf.readableBytes());
}

Example 18 with NotYetConnectedException

use of java.nio.channels.NotYetConnectedException in project netty by netty.

the class EpollDatagramChannel method doWriteMessage.

private boolean doWriteMessage(Object msg) throws Exception {
    final ByteBuf data;
    InetSocketAddress remoteAddress;
    if (msg instanceof AddressedEnvelope) {
        @SuppressWarnings("unchecked") AddressedEnvelope<ByteBuf, InetSocketAddress> envelope = (AddressedEnvelope<ByteBuf, InetSocketAddress>) msg;
        data = envelope.content();
        remoteAddress = envelope.recipient();
    } else {
        data = (ByteBuf) msg;
        remoteAddress = null;
    }
    final int dataLen = data.readableBytes();
    if (dataLen == 0) {
        return true;
    }
    if (remoteAddress == null) {
        remoteAddress = remote;
        if (remoteAddress == null) {
            throw new NotYetConnectedException();
        }
    }
    final int writtenBytes;
    if (data.hasMemoryAddress()) {
        long memoryAddress = data.memoryAddress();
        writtenBytes = fd().sendToAddress(memoryAddress, data.readerIndex(), data.writerIndex(), remoteAddress.getAddress(), remoteAddress.getPort());
    } else if (data instanceof CompositeByteBuf) {
        IovArray array = ((EpollEventLoop) eventLoop()).cleanArray();
        array.add(data);
        int cnt = array.count();
        assert cnt != 0;
        writtenBytes = fd().sendToAddresses(array.memoryAddress(0), cnt, remoteAddress.getAddress(), remoteAddress.getPort());
    } else {
        ByteBuffer nioData = data.internalNioBuffer(data.readerIndex(), data.readableBytes());
        writtenBytes = fd().sendTo(nioData, nioData.position(), nioData.limit(), remoteAddress.getAddress(), remoteAddress.getPort());
    }
    return writtenBytes > 0;
}

Example 19 with NotYetConnectedException

use of java.nio.channels.NotYetConnectedException in project robovm by robovm.

the class SocketChannelTest method testReadByteBuffer_Direct.

public void testReadByteBuffer_Direct() throws Exception {
    assertTrue(this.server1.isBound());
    java.nio.ByteBuffer readBuf = java.nio.ByteBuffer.allocateDirect(CAPACITY_NORMAL);
    assertFalse(this.channel1.isRegistered());
    assertTrue(this.channel1.isBlocking());
    assertFalse(this.channel1.isConnected());
    assertFalse(this.channel1.isConnectionPending());
    assertTrue(this.channel1.isOpen());
    // note: blocking-mode will make the read process endless!
    this.channel1.configureBlocking(false);
    try {
        channel1.read(readBuf);
        fail("Should throw NotYetConnectedException");
    } catch (NotYetConnectedException e) {
    // correct
    }
    boolean connected = this.channel1.connect(localAddr1);
    if (!connected) {
        assertFalse(this.channel1.isBlocking());
        assertTrue(this.channel1.isConnectionPending());
        assertFalse(this.channel1.isConnected());
    }
    if (tryFinish()) {
        assertEquals(0, this.channel1.read(readBuf));
    }
    this.channel1.close();
    try {
        channel1.read(readBuf);
        fail("Should throw ClosedChannelException");
    } catch (ClosedChannelException e) {
    // correct
    }
}

Example 20 with NotYetConnectedException

use of java.nio.channels.NotYetConnectedException in project robovm by robovm.

the class OldSocketChannelTest method testOpen.

public void testOpen() throws IOException {
    java.nio.ByteBuffer[] buf = new java.nio.ByteBuffer[1];
    buf[0] = java.nio.ByteBuffer.allocateDirect(CAPACITY_NORMAL);
    MockSocketChannel testMSChannel = new MockSocketChannel(null);
    MockSocketChannel testMSChannelnotnull = new MockSocketChannel(SelectorProvider.provider());
    SocketChannel testSChannel = MockSocketChannel.open();
    assertTrue(testSChannel.isOpen());
    assertNull(testMSChannel.provider());
    assertNotNull(testSChannel.provider());
    assertEquals(SelectorProvider.provider(), testSChannel.provider());
    assertNotNull(testMSChannelnotnull.provider());
    assertEquals(this.channel1.provider(), testMSChannelnotnull.provider());
    try {
        this.channel1.write(buf);
        fail("Should throw NotYetConnectedException");
    } catch (NotYetConnectedException e) {
    // correct
    }
}