package io.undertow.websockets.client;
import io.undertow.websockets.core.WebSocketChannel;
import io.undertow.websockets.core.WebSocketVersion;
import org.xnio.ChannelListener;
import org.xnio.FutureResult;
import org.xnio.IoFuture;
import org.xnio.OptionMap;
import org.xnio.Pool;
import org.xnio.StreamConnection;
import org.xnio.XnioWorker;
import org.xnio.http.HttpUpgrade;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.ByteBuffer;
import java.util.Map;
/**
* The Web socket client.
*
* @author Stuart Douglas
*/
public class WebSocketClient {
public static IoFuture<WebSocketChannel> connect(XnioWorker worker, final Pool<ByteBuffer> bufferPool, final OptionMap optionMap, final URI uri, WebSocketVersion version) {
return connect(worker, bufferPool, optionMap, uri, version, null);
}
public static IoFuture<WebSocketChannel> connect(XnioWorker worker, final Pool<ByteBuffer> bufferPool, final OptionMap optionMap, final URI uri, WebSocketVersion version, WebSocketClientNegotiation clientNegotiation) {
final FutureResult<WebSocketChannel> ioFuture = new FutureResult<WebSocketChannel>();
final URI newUri;
try {
newUri = new URI(uri.getScheme().equals("wss") ? "https" : "http", uri.getUserInfo(), uri.getHost(), uri.getPort(), uri.getPath().isEmpty() ? "/" : uri.getPath(), uri.getQuery(), uri.getFragment());
} catch (URISyntaxException e) {
throw new RuntimeException(e);
}
final WebSocketClientHandshake handshake = WebSocketClientHandshake.create(version, newUri, clientNegotiation);
final Map<String, String> headers = handshake.createHeaders();
if(clientNegotiation != null) {
clientNegotiation.beforeRequest(headers);
}
IoFuture<StreamConnection> result = HttpUpgrade.performUpgrade(worker, null, newUri, headers, new ChannelListener<StreamConnection>() {
@Override
public void handleEvent(StreamConnection channel) {
WebSocketChannel result = handshake.createChannel(channel, newUri.toString(), bufferPool);
ioFuture.setResult(result);
}
}, null, optionMap, handshake.handshakeChecker(newUri, headers));
result.addNotifier(new IoFuture.Notifier<StreamConnection, Object>() {
@Override
public void notify(IoFuture<? extends StreamConnection> res, Object attachment) {
if (res.getStatus() == IoFuture.Status.FAILED) {
ioFuture.setException(res.getException());
}
}
}, null);
return ioFuture.getIoFuture();
}
private WebSocketClient() {
}
}