@Override
public void open() throws IOException {
if (channel == null) {
channel = SocketChannel.open();
channel.configureBlocking(false);
if (maxSendBufferSize > 0) {
channel.setOption(StandardSocketOptions.SO_SNDBUF, maxSendBufferSize);
final int actualSendBufSize = channel.getOption(StandardSocketOptions.SO_SNDBUF);
if (actualSendBufSize < maxSendBufferSize) {
logger.warn(
"Attempted to set Socket Send Buffer Size to "
+ maxSendBufferSize
+ " bytes but could only set to "
+ actualSendBufSize
+ "bytes. You may want to "
+ "consider changing the Operating System's maximum receive buffer");
}
}
}
if (!channel.isConnected()) {
final long startTime = System.currentTimeMillis();
final InetSocketAddress socketAddress =
new InetSocketAddress(InetAddress.getByName(host), port);
if (!channel.connect(socketAddress)) {
while (!channel.finishConnect()) {
if (System.currentTimeMillis() > startTime + timeout) {
throw new SocketTimeoutException("Timed out connecting to " + host + ":" + port);
}
try {
Thread.sleep(50L);
} catch (final InterruptedException e) {
}
}
}
socketChannelOutput = new SocketChannelOutputStream(channel);
socketChannelOutput.setTimeout(timeout);
}
}
@Override
public <T> T getOption(SocketOption<T> name) throws IOException {
return socketChannel.getOption(name);
}