use of java.nio.channels.NoConnectionPendingException in project openhab1-addons by openhab.
the class AbstractSocketChannelBinding 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);
channels.add(newChannel);
} 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 == null) {
if (channels.contains(itemName, aCommand, Direction.IN, remoteAddress)) {
logger.warn("We already listen for incoming connections from {}", remoteAddress);
} else {
logger.debug("Setting up the inbound channel {}", newChannel);
channels.add(newChannel);
logger.info("We will accept data coming from the remote end {}", remoteAddress);
}
}
}
} 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 (directionsShareChannels) {
Channel firstChannel = channels.getFirstServed(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) {
SocketChannel newSocketChannel = null;
try {
newSocketChannel = SocketChannel.open();
} catch (IOException e2) {
logger.error("An exception occurred while opening a channel: {}", e2.getMessage());
}
try {
newSocketChannel.socket().setKeepAlive(true);
newSocketChannel.configureBlocking(false);
} catch (IOException e) {
logger.error("An exception occurred while configuring a channel: {}", e.getMessage());
}
synchronized (selector) {
selector.wakeup();
int interestSet = SelectionKey.OP_READ | SelectionKey.OP_WRITE | SelectionKey.OP_CONNECT;
try {
newSocketChannel.register(selector, interestSet);
} catch (ClosedChannelException e1) {
logger.error("An exception occurred while registering a selector: {}", e1.getMessage());
}
}
newChannel.channel = newSocketChannel;
logger.debug("Setting up the outbound channel {}", newChannel);
try {
logger.info("Connecting the channel {} ", newChannel);
newSocketChannel.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()) {
if (selKey == listenerKey) {
if (selKey.isAcceptable()) {
try {
SocketChannel newChannel = listenerChannel.accept();
logger.info("Received connection request from {}", newChannel.getRemoteAddress());
Channel firstChannel = channels.getFirstNotServed(Direction.IN, (InetSocketAddress) newChannel.getRemoteAddress());
if (firstChannel != null) {
if (firstChannel.direction == Direction.IN) {
if (useAddressMask && (firstChannel.host.equals("*") || firstChannel.port.equals("*"))) {
logger.info("{}:{} is an allowed masked remote end. The channel will now be configured", firstChannel.host, firstChannel.port);
} else {
logger.info("{} is an allowed remote end. The channel will now be configured", firstChannel.remote);
}
if (firstChannel.channel == null || !firstChannel.channel.isOpen()) {
firstChannel.channel = newChannel;
firstChannel.isBlocking = false;
firstChannel.buffer = null;
if (itemShareChannels) {
channels.replace(firstChannel.item, firstChannel.direction, (InetSocketAddress) newChannel.getRemoteAddress(), firstChannel.channel);
}
if (bindingShareChannels) {
channels.replace(firstChannel.direction, (InetSocketAddress) newChannel.getRemoteAddress(), firstChannel.channel);
}
if (directionsShareChannels) {
channels.replace((InetSocketAddress) newChannel.getRemoteAddress(), firstChannel.channel);
}
try {
newChannel.configureBlocking(false);
// setKeepAlive(true);
} catch (IOException e) {
logger.error("An exception occurred while configuring a channel: {}", e.getMessage());
}
synchronized (selector) {
selector.wakeup();
try {
newChannel.register(selector, newChannel.validOps());
} catch (ClosedChannelException e1) {
logger.error("An exception occurred while registering a selector: {}", e1.getMessage());
}
}
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", firstChannel);
map.put("Binding", this);
JobDetail job = newJob(ConfigureJob.class).withIdentity(Integer.toHexString(hashCode()) + "-Configure-" + Long.toString(System.currentTimeMillis()), this.toString()).usingJobData(map).build();
Trigger trigger = newTrigger().withIdentity(Integer.toHexString(hashCode()) + "-Configure-" + Long.toString(System.currentTimeMillis()), this.toString()).startNow().build();
try {
if (job != null && trigger != null && selKey != listenerKey) {
scheduler.scheduleJob(job, trigger);
}
} catch (SchedulerException e) {
logger.error("An exception occurred while scheduling a job with the Quartz Scheduler {}", e.getMessage());
}
} else {
logger.info("We previously already accepted a connection from the remote end {} for this channel. Goodbye", firstChannel.remote);
newChannel.close();
}
} else {
logger.info("Disconnecting the remote end {} that tries to connect an outbound only port", newChannel.getRemoteAddress());
newChannel.close();
}
} else {
logger.info("Disconnecting the unallowed remote end {}", newChannel.getRemoteAddress());
newChannel.close();
}
} catch (IOException e) {
logger.error("An exception occurred while configuring a channel: {}", e.getMessage());
}
}
} else {
SocketChannel theSocketChannel = (SocketChannel) selKey.channel();
Channel theChannel = channels.get(theSocketChannel);
if (selKey.isConnectable()) {
channels.setAllReconnecting(theSocketChannel, false);
boolean result = false;
boolean error = false;
try {
result = theSocketChannel.finishConnect();
} catch (NoConnectionPendingException e) {
// this channel is not connected and a connection operation
// has not been initiated
logger.warn("The channel {} has no connection pending ({})", theSocketChannel, e.getMessage());
error = true;
} catch (ClosedChannelException e) {
// If some other I/O error occurs
logger.warn("The channel {} is closed ({})", theSocketChannel, e.getMessage());
error = true;
} catch (IOException e) {
// If some other I/O error occurs
logger.warn("The channel {} has encountered an unknown IO Exception: {}", theSocketChannel, e.getMessage());
error = true;
}
if (error) {
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 = newJob(ReconnectJob.class).withIdentity(Integer.toHexString(hashCode()) + "-Reconnect-" + Long.toString(System.currentTimeMillis()), this.toString()).usingJobData(map).build();
Trigger 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(theSocketChannel, 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 (result) {
InetSocketAddress remote = null;
try {
remote = (InetSocketAddress) theSocketChannel.getRemoteAddress();
} catch (IOException e) {
logger.error("An exception occurred while getting the remote address of channel {} ({})", theSocketChannel, e.getMessage());
}
logger.info("The channel for {} is now connected", remote);
if (itemShareChannels) {
channels.replace(theChannel.item, theChannel.direction, remote, theChannel.channel);
}
if (bindingShareChannels) {
channels.replace(theChannel.direction, remote, theChannel.channel);
}
if (directionsShareChannels) {
channels.replace(remote, theChannel.channel);
}
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 = newJob(ConfigureJob.class).withIdentity(Integer.toHexString(hashCode()) + "-Configure-" + Long.toString(System.currentTimeMillis()), this.toString()).usingJobData(map).build();
Trigger trigger = newTrigger().withIdentity(Integer.toHexString(hashCode()) + "-Configure-" + Long.toString(System.currentTimeMillis()), this.toString()).startNow().build();
try {
if (job != null && trigger != null && selKey != listenerKey) {
scheduler.scheduleJob(job, trigger);
}
} catch (SchedulerException e) {
logger.error("An exception occurred while scheduling a job with the Quartz Scheduler {}", e.getMessage());
}
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()).withSchedule(cronSchedule(reconnectCron)).build();
try {
if (job != null && trigger != null && selKey != listenerKey) {
scheduler.scheduleJob(job, trigger);
}
} catch (SchedulerException e) {
logger.error("An exception occurred while scheduling a job with the Quartz Scheduler {}", e.getMessage());
}
}
}
} else if (selKey.isReadable()) {
ByteBuffer readBuffer = ByteBuffer.allocate(maximumBufferSize);
int numberBytesRead = 0;
boolean error = false;
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 = theSocketChannel.read(readBuffer);
} catch (NotYetConnectedException e) {
logger.warn("The channel for {} has no connection pending ({})", theChannel.remote, e.getMessage());
if (!theSocketChannel.isConnectionPending()) {
error = true;
}
} catch (IOException e) {
// If some other I/O error occurs
logger.warn("The channel for {} has encountered an unknown IO Exception: {}", theChannel.remote, e.getMessage());
error = true;
}
if (numberBytesRead == -1) {
try {
theSocketChannel.close();
} catch (IOException e) {
logger.warn("The channel for {} is closed ({})", theChannel.remote, e.getMessage());
}
error = true;
}
if (error) {
if (theChannel.direction == Direction.OUT) {
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 = newJob(ReconnectJob.class).withIdentity(Integer.toHexString(hashCode()) + "-Reconnect-" + Long.toString(System.currentTimeMillis()), "AbstractSocketChannelBinding").usingJobData(map).build();
Trigger trigger = newTrigger().withIdentity(Integer.toHexString(hashCode()) + "-Reconnect-" + Long.toString(System.currentTimeMillis()), "AbstractSocketChannelBinding").startAt(futureDate(reconnectInterval, IntervalUnit.SECOND)).build();
try {
if (job != null && trigger != null && selKey != listenerKey) {
if (!theChannel.isReconnecting) {
channels.setAllReconnecting(theSocketChannel, true);
scheduler.scheduleJob(job, trigger);
}
}
} catch (SchedulerException e) {
logger.error("An exception occurred while scheduling a job with the Quartz Scheduler {}", e.getMessage());
}
} else {
theChannel.channel = null;
}
} else {
ArrayList<Channel> channelsToServe = new ArrayList<Channel>();
channelsToServe = channels.getAll(theSocketChannel);
if (channelsToServe.size() > 0) {
readBuffer.flip();
boolean isBlocking = channels.isBlocking(theSocketChannel);
if (isBlocking) {
// 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
theChannel = channels.getBlocking(theSocketChannel);
theChannel.buffer = readBuffer;
theChannel.isBlocking = false;
} else {
for (Channel aChannel : channelsToServe) {
// if not, then we parse the buffer as ususal
parseChanneledBuffer(aChannel, readBuffer);
}
}
} else {
try {
logger.warn("No channel is active or defined for the data we received from {}. It will be discarded.", theSocketChannel.getRemoteAddress());
} catch (IOException e) {
logger.error("An exception occurred while getting the remote address of the channel {} ({})", theSocketChannel, e.getMessage());
}
}
}
} else if (selKey.isWritable()) {
boolean isBlocking = channels.isBlocking(theSocketChannel);
if (isBlocking) {
// if this channel is already flagged as being in a blocked write/read operation, we skip
// this selKey
} else {
// pick up a QueueElement for this channel, if any
WriteBufferElement theElement = null;
Iterator<WriteBufferElement> iterator = writeQueue.iterator();
while (iterator.hasNext()) {
WriteBufferElement anElement = iterator.next();
if (anElement.channel.channel.equals(theSocketChannel)) {
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();
try {
logger.debug("Sending {} for the outbound channel {}->{}", new Object[] { new String(theElement.buffer.array()), theElement.channel.channel.getLocalAddress(), theElement.channel.channel.getRemoteAddress() });
theSocketChannel.write(theElement.buffer);
} catch (NotYetConnectedException e) {
logger.warn("The channel for {} has no connection pending ({})", theChannel.remote, e.getMessage());
if (!theSocketChannel.isConnectionPending()) {
error = true;
}
} catch (ClosedChannelException e) {
// If some other I/O error occurs
logger.warn("The channel for {} is closed ({})", theChannel.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: {}", theChannel.remote, e.getMessage());
error = true;
}
if (error) {
if (theElement.channel.direction == Direction.OUT) {
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 = newJob(ReconnectJob.class).withIdentity(Integer.toHexString(hashCode()) + "-Reconnect-" + Long.toString(System.currentTimeMillis()), "AbstractSocketChannelBinding").usingJobData(map).build();
Trigger trigger = newTrigger().withIdentity(Integer.toHexString(hashCode()) + "-Reconnect-" + Long.toString(System.currentTimeMillis()), "AbstractSocketChannelBinding").startAt(futureDate(reconnectInterval, IntervalUnit.SECOND)).build();
try {
if (job != null && trigger != null && selKey != listenerKey) {
if (!theElement.channel.isReconnecting) {
channels.setAllReconnecting(theSocketChannel, true);
scheduler.scheduleJob(job, trigger);
}
}
} catch (SchedulerException e) {
logger.error("An exception occurred while scheduling a job with the Quartz Scheduler {}", e.getMessage());
}
} else {
theElement.channel.channel = null;
}
} else {
if (theElement != null) {
writeQueue.remove(theElement);
}
}
}
}
}
}
}
}
}
use of java.nio.channels.NoConnectionPendingException in project robovm by robovm.
the class SocketChannelTest method testCFII_Data_FinishConnect_Blocking.
public void testCFII_Data_FinishConnect_Blocking() throws IOException {
ensureServerOpen();
java.nio.ByteBuffer writeBuf = java.nio.ByteBuffer.allocate(CAPACITY_NORMAL);
java.nio.ByteBuffer[] writeBufArr = new java.nio.ByteBuffer[1];
writeBufArr[0] = java.nio.ByteBuffer.allocate(CAPACITY_NORMAL);
this.channel1.configureBlocking(true);
try {
this.channel1.finishConnect();
fail("Should throw NoConnectionPendingException");
} catch (NoConnectionPendingException e) {
// correct
}
this.channel1.connect(localAddr1);
assertTrue(this.channel1.isConnected());
assertFalse(this.channel1.isConnectionPending());
assertTrue(this.channel1.isOpen());
if (tryFinish()) {
assertEquals(CAPACITY_NORMAL, this.channel1.write(writeBuf));
assertEquals(CAPACITY_NORMAL, this.channel1.write(writeBufArr, 0, 1));
try {
this.channel1.connect(localAddr1);
fail("Should throw AlreadyConnectedException");
} catch (AlreadyConnectedException e) {
// correct
}
}
assertFalse(this.channel1.isRegistered());
tryFinish();
}
use of java.nio.channels.NoConnectionPendingException in project robovm by robovm.
the class SocketChannelTest method testCFII_Data_FinishConnect_nonBlocking.
/*
* Test method for 'SocketChannelImpl.finishConnect()'
*/
public void testCFII_Data_FinishConnect_nonBlocking() throws IOException {
ensureServerOpen();
java.nio.ByteBuffer writeBuf = java.nio.ByteBuffer.allocate(CAPACITY_NORMAL);
java.nio.ByteBuffer[] writeBufArr = new java.nio.ByteBuffer[1];
writeBufArr[0] = java.nio.ByteBuffer.allocate(CAPACITY_NORMAL);
this.channel1.configureBlocking(false);
try {
this.channel1.finishConnect();
fail("Should throw NoConnectionPendingException");
} catch (NoConnectionPendingException e) {
// correct
}
boolean connected = channel1.connect(localAddr1);
if (!connected) {
assertFalse(this.channel1.isBlocking());
assertFalse(this.channel1.isConnected());
assertTrue(this.channel1.isConnectionPending());
assertTrue(this.channel1.isOpen());
}
this.server1.accept();
if (tryFinish()) {
assertEquals(CAPACITY_NORMAL, this.channel1.write(writeBuf));
assertEquals(CAPACITY_NORMAL, this.channel1.write(writeBufArr, 0, 1));
try {
this.channel1.connect(localAddr1);
fail("Should throw AlreadyConnectedException");
} catch (AlreadyConnectedException e) {
// correct
}
}
assertFalse(this.channel1.isRegistered());
tryFinish();
}
use of java.nio.channels.NoConnectionPendingException in project robovm by robovm.
the class SocketChannelImpl method finishConnect.
@Override
public boolean finishConnect() throws IOException {
synchronized (this) {
if (!isOpen()) {
throw new ClosedChannelException();
}
if (status == SOCKET_STATUS_CONNECTED) {
return true;
}
if (status != SOCKET_STATUS_PENDING) {
throw new NoConnectionPendingException();
}
}
boolean finished = false;
try {
begin();
InetAddress inetAddress = connectAddress.getAddress();
int port = connectAddress.getPort();
// Return immediately.
finished = IoBridge.isConnected(fd, inetAddress, port, 0, 0);
isBound = finished;
} catch (ConnectException e) {
if (isOpen()) {
close();
finished = true;
}
throw e;
} finally {
end(finished);
}
synchronized (this) {
status = (finished ? SOCKET_STATUS_CONNECTED : status);
isBound = finished;
}
return finished;
}
use of java.nio.channels.NoConnectionPendingException in project j2objc by google.
the class SocketChannelImpl method finishConnect.
@Override
public boolean finishConnect() throws IOException {
synchronized (this) {
if (!isOpen()) {
throw new ClosedChannelException();
}
if (status == SOCKET_STATUS_CONNECTED) {
return true;
}
if (status != SOCKET_STATUS_PENDING) {
throw new NoConnectionPendingException();
}
}
boolean finished = false;
try {
begin();
InetAddress inetAddress = connectAddress.getAddress();
int port = connectAddress.getPort();
// Return immediately.
finished = NetworkBridge.isConnected(fd, inetAddress, port, 0, 0);
} catch (ConnectException e) {
if (isOpen()) {
close();
finished = true;
}
throw e;
} finally {
end(finished);
}
synchronized (this) {
status = (finished ? SOCKET_STATUS_CONNECTED : status);
if (finished && socket != null) {
socket.onConnect(connectAddress.getAddress(), connectAddress.getPort());
}
}
return finished;
}
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