@Override
public int read(ScatteringByteChannel channel) throws IOException {
int read = 0;
if (sizeBuffer.hasRemaining()) {
int num = channel.read(sizeBuffer);
if (num < 0) {
throw new IOException("end-of-stream reached");
}
read += num;
if (sizeBuffer.hasRemaining()) {
return read;
} else {
sizeBuffer.flip();
size = sizeBuffer.getInt();
contentBuffer = ByteBuffer.allocate(size);
}
}
if (!sizeBuffer.hasRemaining()) {
int num = channel.read(contentBuffer);
if (num < 0) {
throw new IOException("end-of-stream reached");
}
read += num;
if (!contentBuffer.hasRemaining()) {
contentBuffer.flip();
complete = true;
}
}
return read;
}
@Override
public int writeBytes(ScatteringByteChannel in, int length) throws IOException {
byte[] array = new byte[length];
int read = in.read(ByteBuffer.wrap(array));
writeBytes(array, 0, read);
return read;
}
@Override
public int setBytes(int index, ScatteringByteChannel in, int length) throws IOException {
ensureAccessible();
try {
return in.read(
(ByteBuffer) internalNioBuffer().clear().position(index).limit(index + length));
} catch (ClosedChannelException e) {
return -1;
}
}
@Override
public int setBytes(int index, ScatteringByteChannel in, int length) throws IOException {
checkIndex(index, length);
ByteBuffer tmpNioBuf = internalNioBuffer();
index = idx(index);
tmpNioBuf.clear().position(index).limit(index + length);
try {
return in.read(tmpNioBuf);
} catch (ClosedChannelException e) {
return -1;
}
}
public int setBytes(int var1, ScatteringByteChannel var2, int var3) throws IOException {
this.checkIndex(var1, var3);
ByteBuffer var4 = this.internalNioBuffer();
var1 = this.idx(var1);
var4.clear().position(var1).limit(var1 + var3);
try {
return var2.read(var4);
} catch (ClosedChannelException var6) {
return -1;
}
}
@Override
public long readFrom(ScatteringByteChannel channel) throws IOException {
long read = channel.read(buffers);
remaining += read;
return read;
}
@Test
public void testSendDatagramWithoutCallback() throws Exception {
// Single datagram sending
Pipe readPipe = Pipe.open();
Pipe writePipe = Pipe.open();
GatheringByteChannel gatheringByteChannel = writePipe.sink();
ScatteringByteChannel scatteringByteChannel = readPipe.source();
SelectionKeyRegistrationReference registrationReference =
(SelectionKeyRegistrationReference)
_selectorIntraband.registerChannel(writePipe.source(), readPipe.sink());
Thread wakeUpThread = new Thread(new WakeUpRunnable(_selectorIntraband));
wakeUpThread.start();
Selector selector = _selectorIntraband.selector;
synchronized (selector) {
wakeUpThread.interrupt();
wakeUpThread.join();
Datagram requestDatagram = Datagram.createRequestDatagram(_type, _data);
_selectorIntraband.sendDatagram(registrationReference, requestDatagram);
SelectionKey writeSelectionKey = registrationReference.writeSelectionKey;
ChannelContext channelContext = (ChannelContext) writeSelectionKey.attachment();
Queue<Datagram> sendingQueue = channelContext.getSendingQueue();
Assert.assertEquals(1, sendingQueue.size());
Assert.assertSame(requestDatagram, sendingQueue.peek());
}
Datagram receiveDatagram = IntrabandTestUtil.readDatagramFully(scatteringByteChannel);
Assert.assertEquals(_type, receiveDatagram.getType());
ByteBuffer dataByteBuffer = receiveDatagram.getDataByteBuffer();
Assert.assertArrayEquals(_data, dataByteBuffer.array());
// Two datagrams continuous sending
Datagram requestDatagram1 = Datagram.createRequestDatagram(_type, _data);
Datagram requestDatagram2 = Datagram.createRequestDatagram(_type, _data);
wakeUpThread = new Thread(new WakeUpRunnable(_selectorIntraband));
wakeUpThread.start();
synchronized (selector) {
wakeUpThread.interrupt();
wakeUpThread.join();
_selectorIntraband.sendDatagram(registrationReference, requestDatagram1);
_selectorIntraband.sendDatagram(registrationReference, requestDatagram2);
SelectionKey writeSelectionKey = registrationReference.writeSelectionKey;
ChannelContext channelContext = (ChannelContext) writeSelectionKey.attachment();
Queue<Datagram> sendingQueue = channelContext.getSendingQueue();
Assert.assertEquals(2, sendingQueue.size());
Datagram[] datagrams = sendingQueue.toArray(new Datagram[2]);
Assert.assertSame(requestDatagram1, datagrams[0]);
Assert.assertSame(requestDatagram2, datagrams[1]);
}
Datagram receiveDatagram1 = IntrabandTestUtil.readDatagramFully(scatteringByteChannel);
Assert.assertEquals(_type, receiveDatagram1.getType());
dataByteBuffer = receiveDatagram1.getDataByteBuffer();
Assert.assertArrayEquals(_data, dataByteBuffer.array());
Datagram receiveDatagram2 = IntrabandTestUtil.readDatagramFully(scatteringByteChannel);
Assert.assertEquals(_type, receiveDatagram2.getType());
dataByteBuffer = receiveDatagram2.getDataByteBuffer();
Assert.assertArrayEquals(_data, dataByteBuffer.array());
// Two datagrams delay sending
requestDatagram1 = Datagram.createRequestDatagram(_type, _data);
requestDatagram2 = Datagram.createRequestDatagram(_type, _data);
wakeUpThread = new Thread(new WakeUpRunnable(_selectorIntraband));
wakeUpThread.start();
SelectionKey writeSelectionKey = registrationReference.writeSelectionKey;
ChannelContext channelContext = (ChannelContext) writeSelectionKey.attachment();
Queue<Datagram> sendingQueue = channelContext.getSendingQueue();
synchronized (writeSelectionKey) {
synchronized (selector) {
wakeUpThread.interrupt();
wakeUpThread.join();
_selectorIntraband.sendDatagram(registrationReference, requestDatagram1);
Assert.assertEquals(1, sendingQueue.size());
Assert.assertSame(requestDatagram1, sendingQueue.peek());
}
receiveDatagram1 = IntrabandTestUtil.readDatagramFully(scatteringByteChannel);
Assert.assertEquals(_type, receiveDatagram1.getType());
dataByteBuffer = receiveDatagram1.getDataByteBuffer();
Assert.assertArrayEquals(_data, dataByteBuffer.array());
Thread pollingThread = _selectorIntraband.pollingThread;
while (pollingThread.getState() == Thread.State.RUNNABLE) ;
_selectorIntraband.sendDatagram(registrationReference, requestDatagram2);
Assert.assertEquals(1, sendingQueue.size());
Assert.assertSame(requestDatagram2, sendingQueue.peek());
}
receiveDatagram2 = IntrabandTestUtil.readDatagramFully(scatteringByteChannel);
Assert.assertEquals(_type, receiveDatagram2.getType());
dataByteBuffer = receiveDatagram2.getDataByteBuffer();
Assert.assertArrayEquals(_data, dataByteBuffer.array());
// Huge datagram sending
int hugeBufferSize = 1024 * 1024 * 10;
ByteBuffer hugeBuffer = ByteBuffer.allocate(hugeBufferSize);
for (int i = 0; i < hugeBufferSize; i++) {
hugeBuffer.put(i, (byte) i);
}
_selectorIntraband.sendDatagram(
registrationReference, Datagram.createRequestDatagram(_type, hugeBuffer));
receiveDatagram = DatagramHelper.createReceiveDatagram();
channelContext = (ChannelContext) writeSelectionKey.attachment();
int count = 0;
while (!DatagramHelper.readFrom(receiveDatagram, scatteringByteChannel)) {
count++;
}
Assert.assertTrue(count > 0);
sendingQueue = channelContext.getSendingQueue();
Assert.assertTrue(sendingQueue.isEmpty());
dataByteBuffer = receiveDatagram.getDataByteBuffer();
Assert.assertArrayEquals(hugeBuffer.array(), dataByteBuffer.array());
unregisterChannels(registrationReference);
gatheringByteChannel.close();
scatteringByteChannel.close();
}
@AdviseWith(adviceClasses = {Jdk14LogImplAdvice.class})
@Test
public void testSendDatagramWithCallback() throws Exception {
// Submitted callback
Pipe readPipe = Pipe.open();
Pipe writePipe = Pipe.open();
GatheringByteChannel gatheringByteChannel = writePipe.sink();
ScatteringByteChannel scatteringByteChannel = readPipe.source();
RegistrationReference registrationReference =
_selectorIntraband.registerChannel(writePipe.source(), readPipe.sink());
Object attachment = new Object();
RecordCompletionHandler<Object> recordCompletionHandler = new RecordCompletionHandler<Object>();
_selectorIntraband.sendDatagram(
registrationReference,
Datagram.createRequestDatagram(_type, _data),
attachment,
EnumSet.of(CompletionType.SUBMITTED),
recordCompletionHandler);
Datagram receiveDatagram = IntrabandTestUtil.readDatagramFully(scatteringByteChannel);
recordCompletionHandler.waitUntilSubmitted();
Assert.assertSame(attachment, recordCompletionHandler.getAttachment());
Assert.assertEquals(_type, receiveDatagram.getType());
ByteBuffer dataByteBuffer = receiveDatagram.getDataByteBuffer();
Assert.assertArrayEquals(_data, dataByteBuffer.array());
CaptureHandler captureHandler = null;
try {
// Callback timeout, with log
captureHandler =
JDKLoggerTestUtil.configureJDKLogger(BaseIntraband.class.getName(), Level.WARNING);
List<LogRecord> logRecords = captureHandler.getLogRecords();
recordCompletionHandler = new RecordCompletionHandler<Object>();
_selectorIntraband.sendDatagram(
registrationReference,
Datagram.createRequestDatagram(_type, _data),
attachment,
EnumSet.of(CompletionType.DELIVERED),
recordCompletionHandler,
10,
TimeUnit.MILLISECONDS);
Selector selector = _selectorIntraband.selector;
recordCompletionHandler.waitUntilTimeouted(selector);
Assert.assertSame(attachment, recordCompletionHandler.getAttachment());
Assert.assertEquals(1, logRecords.size());
IntrabandTestUtil.assertMessageStartWith(
logRecords.get(0), "Removed timeout response waiting datagram");
// Callback timeout, without log
logRecords = captureHandler.resetLogLevel(Level.OFF);
recordCompletionHandler = new RecordCompletionHandler<Object>();
_selectorIntraband.sendDatagram(
registrationReference,
Datagram.createRequestDatagram(_type, _data),
attachment,
EnumSet.of(CompletionType.DELIVERED),
recordCompletionHandler,
10,
TimeUnit.MILLISECONDS);
recordCompletionHandler.waitUntilTimeouted(selector);
Assert.assertSame(attachment, recordCompletionHandler.getAttachment());
Assert.assertTrue(logRecords.isEmpty());
} finally {
if (captureHandler != null) {
captureHandler.close();
}
}
// Callback timeout, completion handler causes NPE
captureHandler =
JDKLoggerTestUtil.configureJDKLogger(SelectorIntraband.class.getName(), Level.SEVERE);
try {
List<LogRecord> logRecords = captureHandler.getLogRecords();
recordCompletionHandler =
new RecordCompletionHandler<Object>() {
@Override
public void timedOut(Object attachment) {
super.timedOut(attachment);
throw new NullPointerException();
}
};
Jdk14LogImplAdvice.reset();
Selector selector = _selectorIntraband.selector;
try {
_selectorIntraband.sendDatagram(
registrationReference,
Datagram.createRequestDatagram(_type, _data),
attachment,
EnumSet.of(CompletionType.DELIVERED),
recordCompletionHandler,
10,
TimeUnit.MILLISECONDS);
} finally {
recordCompletionHandler.waitUntilTimeouted(selector);
Jdk14LogImplAdvice.waitUntilErrorCalled();
}
Assert.assertFalse(selector.isOpen());
Assert.assertEquals(1, logRecords.size());
IntrabandTestUtil.assertMessageStartWith(
logRecords.get(0), SelectorIntraband.class + ".threadFactory-1 exiting exceptionally");
gatheringByteChannel.close();
scatteringByteChannel.close();
} finally {
captureHandler.close();
}
}
@AdviseWith(adviceClasses = {Jdk14LogImplAdvice.class})
@Test
public void testReceiveDatagram() throws Exception {
Pipe readPipe = Pipe.open();
Pipe writePipe = Pipe.open();
GatheringByteChannel gatheringByteChannel = writePipe.sink();
ScatteringByteChannel scatteringByteChannel = readPipe.source();
SelectionKeyRegistrationReference registrationReference =
(SelectionKeyRegistrationReference)
_selectorIntraband.registerChannel(writePipe.source(), readPipe.sink());
long sequenceId = 100;
CaptureHandler captureHandler = null;
try {
// Receive ACK response, no ACK request, with log
captureHandler =
JDKLoggerTestUtil.configureJDKLogger(BaseIntraband.class.getName(), Level.WARNING);
List<LogRecord> logRecords = captureHandler.getLogRecords();
Jdk14LogImplAdvice.reset();
try {
DatagramHelper.writeTo(
DatagramHelper.createACKResponseDatagram(sequenceId), gatheringByteChannel);
} finally {
Jdk14LogImplAdvice.waitUntilWarnCalled();
}
Assert.assertEquals(1, logRecords.size());
IntrabandTestUtil.assertMessageStartWith(
logRecords.get(0), "Dropped ownerless ACK response ");
// Receive ACK response, no ACK request, without log
logRecords = captureHandler.resetLogLevel(Level.OFF);
Jdk14LogImplAdvice.reset();
try {
DatagramHelper.writeTo(
DatagramHelper.createACKResponseDatagram(sequenceId), gatheringByteChannel);
} finally {
Jdk14LogImplAdvice.waitUntilIsWarnEnableCalled();
}
Assert.assertTrue(logRecords.isEmpty());
// Receive ACK response, with ACK request
Datagram requestDatagram = Datagram.createRequestDatagram(_type, _data);
DatagramHelper.setAttachment(requestDatagram, new Object());
RecordCompletionHandler<Object> recordCompletionHandler =
new RecordCompletionHandler<Object>();
DatagramHelper.setCompletionHandler(requestDatagram, recordCompletionHandler);
DatagramHelper.setSequenceId(requestDatagram, sequenceId);
DatagramHelper.setTimeout(requestDatagram, 10000);
BaseIntrabandHelper.addResponseWaitingDatagram(_selectorIntraband, requestDatagram);
DatagramHelper.writeTo(
DatagramHelper.createACKResponseDatagram(sequenceId), gatheringByteChannel);
recordCompletionHandler.waitUntilDelivered();
Assert.assertSame(
DatagramHelper.getAttachment(requestDatagram), recordCompletionHandler.getAttachment());
// Receive response, no request, with log
logRecords = captureHandler.resetLogLevel(Level.WARNING);
Jdk14LogImplAdvice.reset();
try {
DatagramHelper.writeTo(
Datagram.createResponseDatagram(requestDatagram, _data), gatheringByteChannel);
} finally {
Jdk14LogImplAdvice.waitUntilWarnCalled();
}
Assert.assertEquals(1, logRecords.size());
IntrabandTestUtil.assertMessageStartWith(logRecords.get(0), "Dropped ownerless response ");
// Receive response, no request, without log
logRecords = captureHandler.resetLogLevel(Level.OFF);
Jdk14LogImplAdvice.reset();
try {
requestDatagram = Datagram.createRequestDatagram(_type, _data);
DatagramHelper.setSequenceId(requestDatagram, sequenceId);
DatagramHelper.writeTo(
Datagram.createResponseDatagram(requestDatagram, _data), gatheringByteChannel);
} finally {
Jdk14LogImplAdvice.waitUntilIsWarnEnableCalled();
}
Assert.assertTrue(logRecords.isEmpty());
// Receive response, with request, with replied completion handler
requestDatagram = Datagram.createRequestDatagram(_type, _data);
DatagramHelper.setAttachment(requestDatagram, new Object());
recordCompletionHandler = new RecordCompletionHandler<Object>();
DatagramHelper.setCompletionHandler(requestDatagram, recordCompletionHandler);
DatagramHelper.setCompletionTypes(requestDatagram, EnumSet.of(CompletionType.REPLIED));
DatagramHelper.setSequenceId(requestDatagram, sequenceId);
DatagramHelper.setTimeout(requestDatagram, 10000);
BaseIntrabandHelper.addResponseWaitingDatagram(_selectorIntraband, requestDatagram);
DatagramHelper.writeTo(
Datagram.createResponseDatagram(requestDatagram, _data), gatheringByteChannel);
recordCompletionHandler.waitUntilReplied();
Assert.assertSame(
DatagramHelper.getAttachment(requestDatagram), recordCompletionHandler.getAttachment());
// Receive response, with request, without replied completion
// handler, with log
logRecords = captureHandler.resetLogLevel(Level.WARNING);
requestDatagram = Datagram.createRequestDatagram(_type, _data);
DatagramHelper.setCompletionTypes(requestDatagram, EnumSet.noneOf(CompletionType.class));
recordCompletionHandler = new RecordCompletionHandler<Object>();
DatagramHelper.setCompletionHandler(requestDatagram, recordCompletionHandler);
DatagramHelper.setSequenceId(requestDatagram, sequenceId);
DatagramHelper.setTimeout(requestDatagram, 10000);
BaseIntrabandHelper.addResponseWaitingDatagram(_selectorIntraband, requestDatagram);
Jdk14LogImplAdvice.reset();
try {
DatagramHelper.writeTo(
Datagram.createResponseDatagram(requestDatagram, _data), gatheringByteChannel);
} finally {
Jdk14LogImplAdvice.waitUntilWarnCalled();
}
Assert.assertEquals(1, logRecords.size());
IntrabandTestUtil.assertMessageStartWith(logRecords.get(0), "Dropped unconcerned response ");
// Receive response, with request, without replied completion
// handler, without log
logRecords = captureHandler.resetLogLevel(Level.OFF);
requestDatagram = Datagram.createRequestDatagram(_type, _data);
DatagramHelper.setCompletionTypes(requestDatagram, EnumSet.noneOf(CompletionType.class));
recordCompletionHandler = new RecordCompletionHandler<Object>();
DatagramHelper.setCompletionHandler(requestDatagram, recordCompletionHandler);
DatagramHelper.setSequenceId(requestDatagram, sequenceId);
DatagramHelper.setTimeout(requestDatagram, 10000);
BaseIntrabandHelper.addResponseWaitingDatagram(_selectorIntraband, requestDatagram);
Jdk14LogImplAdvice.reset();
try {
DatagramHelper.writeTo(
Datagram.createResponseDatagram(requestDatagram, _data), gatheringByteChannel);
} finally {
Jdk14LogImplAdvice.waitUntilIsWarnEnableCalled();
}
Assert.assertTrue(logRecords.isEmpty());
// Receive request, requires ACK, no datagram receive handler,
// with log
logRecords = captureHandler.resetLogLevel(Level.WARNING);
requestDatagram = Datagram.createRequestDatagram(_type, _data);
DatagramHelper.setAckRequest(requestDatagram);
DatagramHelper.setSequenceId(requestDatagram, sequenceId);
Jdk14LogImplAdvice.reset();
try {
DatagramHelper.writeTo(requestDatagram, gatheringByteChannel);
} finally {
Jdk14LogImplAdvice.waitUntilWarnCalled();
}
Datagram ackResponseDatagram = IntrabandTestUtil.readDatagramFully(scatteringByteChannel);
Assert.assertEquals(sequenceId, DatagramHelper.getSequenceId(ackResponseDatagram));
Assert.assertTrue(DatagramHelper.isAckResponse(ackResponseDatagram));
ByteBuffer dataByteBuffer = ackResponseDatagram.getDataByteBuffer();
Assert.assertEquals(0, dataByteBuffer.capacity());
Assert.assertEquals(1, logRecords.size());
IntrabandTestUtil.assertMessageStartWith(logRecords.get(0), "Dropped ownerless request ");
// Receive request, no datagram receive handler, without log
logRecords = captureHandler.resetLogLevel(Level.OFF);
requestDatagram = Datagram.createRequestDatagram(_type, _data);
DatagramHelper.setSequenceId(requestDatagram, sequenceId);
Jdk14LogImplAdvice.reset();
try {
DatagramHelper.writeTo(requestDatagram, gatheringByteChannel);
} finally {
Jdk14LogImplAdvice.waitUntilIsWarnEnableCalled();
}
Assert.assertTrue(logRecords.isEmpty());
// Receive request, with datagram receive handler,
logRecords = captureHandler.resetLogLevel(Level.SEVERE);
requestDatagram = Datagram.createRequestDatagram(_type, _data);
DatagramHelper.setSequenceId(requestDatagram, sequenceId);
RecordDatagramReceiveHandler recordDatagramReceiveHandler =
new RecordDatagramReceiveHandler();
_selectorIntraband.registerDatagramReceiveHandler(_type, recordDatagramReceiveHandler);
Jdk14LogImplAdvice.reset();
try {
DatagramHelper.writeTo(requestDatagram, gatheringByteChannel);
} finally {
Jdk14LogImplAdvice.waitUntilErrorCalled();
}
Datagram receiveDatagram = recordDatagramReceiveHandler.getReceiveDatagram();
Assert.assertEquals(sequenceId, DatagramHelper.getSequenceId(receiveDatagram));
Assert.assertEquals(_type, receiveDatagram.getType());
dataByteBuffer = receiveDatagram.getDataByteBuffer();
Assert.assertArrayEquals(_data, dataByteBuffer.array());
Assert.assertEquals(1, logRecords.size());
IntrabandTestUtil.assertMessageStartWith(logRecords.get(0), "Unable to dispatch");
unregisterChannels(registrationReference);
gatheringByteChannel.close();
scatteringByteChannel.close();
} finally {
if (captureHandler != null) {
captureHandler.close();
}
}
}