@Override
public int read(byte[] bytes, int off, int len) throws IOException {
if (bytes == null) {
throw new NullPointerException("null destination buffer");
}
if ((len | off | (off + len) | (bytes.length - (off + len))) < 0) {
throw new IndexOutOfBoundsException();
}
if (len == 0) {
return 0;
}
try {
synchronized (stream) {
final int available = stream.bufferedInputBytesRemaining();
if (available >= len) {
return stream.copyBufferedBytes(bytes, off, len);
} else if (stream.getDescriptor().getChannel() instanceof SelectableChannel) {
SelectableChannel ch = (SelectableChannel) stream.getDescriptor().getChannel();
synchronized (ch.blockingLock()) {
boolean oldBlocking = ch.isBlocking();
try {
if (!oldBlocking) {
ch.configureBlocking(true);
}
return stream.bufferedRead(ByteBuffer.wrap(bytes, off, len), true);
} finally {
if (!oldBlocking) {
ch.configureBlocking(oldBlocking);
}
}
}
} else {
return stream.bufferedRead(ByteBuffer.wrap(bytes, off, len), true);
}
}
} catch (BadDescriptorException ex) {
throw new IOException(ex.getMessage());
} catch (EOFException ex) {
return -1;
}
}
@Override
public int available() throws IOException {
synchronized (stream) {
return !stream.eof ? stream.bufferedInputBytesRemaining() : 0;
}
}