@Override
public void flush() throws IOException {
while (true) {
switch (_state.get()) {
case OPEN:
if (BufferUtil.hasContent(_aggregate)) _channel.write(_aggregate, false);
else _channel.write(BufferUtil.EMPTY_BUFFER, false);
return;
case ASYNC:
throw new IllegalStateException("isReady() not called");
case READY:
if (!_state.compareAndSet(State.READY, State.PENDING)) continue;
new AsyncFlush().process();
return;
case PENDING:
case UNREADY:
throw new WritePendingException();
case CLOSED:
return;
}
break;
}
}
/**
* Blocking send of content.
*
* @param content The content to send.
* @throws IOException
*/
public void sendContent(ByteBuffer content) throws IOException {
final BlockingCallback callback = _channel.getWriteBlockingCallback();
if (content.hasArray() && content.limit() < content.capacity())
content = content.asReadOnlyBuffer();
_channel.write(content, true, callback);
callback.block();
}
public void write(ByteBuffer buffer) throws IOException {
_written += buffer.remaining();
boolean complete = _channel.getResponse().isAllContentWritten(_written);
// Async or Blocking ?
while (true) {
switch (_state.get()) {
case OPEN:
// process blocking below
break;
case ASYNC:
throw new IllegalStateException("isReady() not called");
case READY:
if (!_state.compareAndSet(State.READY, State.PENDING)) continue;
// Do the asynchronous writing from the callback
new AsyncWrite(buffer, complete).process();
return;
case PENDING:
case UNREADY:
throw new WritePendingException();
case CLOSED:
throw new EofException("Closed");
}
break;
}
// handle blocking write
int len = BufferUtil.length(buffer);
// flush any content from the aggregate
if (BufferUtil.hasContent(_aggregate)) _channel.write(_aggregate, complete && len == 0);
// write any remaining content in the buffer directly
if (len > 0) _channel.write(buffer, complete);
else if (complete) _channel.write(BufferUtil.EMPTY_BUFFER, complete);
if (complete) closed();
}
@Override
public void close() {
State state = _state.get();
while (state != State.CLOSED) {
if (_state.compareAndSet(state, State.CLOSED)) {
try {
if (BufferUtil.hasContent(_aggregate))
_channel.write(_aggregate, !_channel.getResponse().isIncluding());
else _channel.write(BufferUtil.EMPTY_BUFFER, !_channel.getResponse().isIncluding());
} catch (IOException e) {
LOG.debug(e);
_channel.failed();
}
releaseBuffer();
return;
}
state = _state.get();
}
}
@Override
public void write(int b) throws IOException {
_written += 1;
boolean complete = _channel.getResponse().isAllContentWritten(_written);
// Async or Blocking ?
while (true) {
switch (_state.get()) {
case OPEN:
if (_aggregate == null)
_aggregate = _channel.getByteBufferPool().acquire(getBufferSize(), false);
BufferUtil.append(_aggregate, (byte) b);
// Check if all written or full
if (complete || BufferUtil.isFull(_aggregate)) {
BlockingCallback callback = _channel.getWriteBlockingCallback();
_channel.write(_aggregate, complete, callback);
callback.block();
if (complete) closed();
}
break;
case ASYNC:
throw new IllegalStateException("isReady() not called");
case READY:
if (!_state.compareAndSet(State.READY, State.PENDING)) continue;
if (_aggregate == null)
_aggregate = _channel.getByteBufferPool().acquire(getBufferSize(), false);
BufferUtil.append(_aggregate, (byte) b);
// Check if all written or full
if (!complete && !BufferUtil.isFull(_aggregate)) {
if (!_state.compareAndSet(State.PENDING, State.ASYNC))
throw new IllegalStateException();
return;
}
// Do the asynchronous writing from the callback
new AsyncFlush().process();
return;
case PENDING:
case UNREADY:
throw new WritePendingException();
case CLOSED:
throw new EofException("Closed");
}
break;
}
}
/**
* Asynchronous send of content.
*
* @param content The content to send
* @param callback The callback to use to notify success or failure
*/
public void sendContent(ByteBuffer content, final Callback callback) {
if (content.hasArray() && content.limit() < content.capacity())
content = content.asReadOnlyBuffer();
_channel.write(
content,
true,
new Callback() {
@Override
public void succeeded() {
closed();
callback.succeeded();
}
@Override
public void failed(Throwable x) {
callback.failed(x);
}
});
}
@Override
public void write(byte[] b, int off, int len) throws IOException {
_written += len;
boolean complete = _channel.getResponse().isAllContentWritten(_written);
// Async or Blocking ?
while (true) {
switch (_state.get()) {
case OPEN:
// process blocking below
break;
case ASYNC:
throw new IllegalStateException("isReady() not called");
case READY:
if (!_state.compareAndSet(State.READY, State.PENDING)) continue;
// Should we aggregate?
int capacity = getBufferSize();
if (!complete && len <= _commitSize) {
if (_aggregate == null)
_aggregate = _channel.getByteBufferPool().acquire(capacity, false);
// YES - fill the aggregate with content from the buffer
int filled = BufferUtil.fill(_aggregate, b, off, len);
// return if we are not complete, not full and filled all the content
if (filled == len && !BufferUtil.isFull(_aggregate)) {
if (!_state.compareAndSet(State.PENDING, State.ASYNC))
throw new IllegalStateException();
return;
}
// adjust offset/length
off += filled;
len -= filled;
}
// Do the asynchronous writing from the callback
new AsyncWrite(b, off, len, complete).process();
return;
case PENDING:
case UNREADY:
throw new WritePendingException();
case CLOSED:
throw new EofException("Closed");
}
break;
}
// handle blocking write
// Should we aggregate?
int capacity = getBufferSize();
if (!complete && len <= _commitSize) {
if (_aggregate == null) _aggregate = _channel.getByteBufferPool().acquire(capacity, false);
// YES - fill the aggregate with content from the buffer
int filled = BufferUtil.fill(_aggregate, b, off, len);
// return if we are not complete, not full and filled all the content
if (filled == len && !BufferUtil.isFull(_aggregate)) return;
// adjust offset/length
off += filled;
len -= filled;
}
// flush any content from the aggregate
if (BufferUtil.hasContent(_aggregate)) {
_channel.write(_aggregate, complete && len == 0);
// should we fill aggregate again from the buffer?
if (len > 0 && !complete && len <= _commitSize) {
BufferUtil.append(_aggregate, b, off, len);
return;
}
}
// write any remaining content in the buffer directly
if (len > 0)
// pass as readonly to avoid space stealing optimisation in HttpConnection
_channel.write(ByteBuffer.wrap(b, off, len).asReadOnlyBuffer(), complete);
else if (complete) _channel.write(BufferUtil.EMPTY_BUFFER, complete);
if (complete) {
closed();
}
}
