package org.arquillian.cube.kubernetes.impl.portforward;
import io.undertow.UndertowLogger;
import io.undertow.UndertowMessages;
import io.undertow.UndertowOptions;
import io.undertow.client.ClientConnection;
import io.undertow.conduits.ReadTimeoutStreamSourceConduit;
import io.undertow.conduits.WriteTimeoutStreamSinkConduit;
import io.undertow.connector.ByteBufferPool;
import io.undertow.server.ConnectorStatistics;
import io.undertow.server.HttpHandler;
import io.undertow.server.OpenListener;
import io.undertow.server.XnioByteBufferPool;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.concurrent.atomic.AtomicInteger;
import org.xnio.IoUtils;
import org.xnio.OptionMap;
import org.xnio.Options;
import org.xnio.Pool;
import org.xnio.Pooled;
import org.xnio.StreamConnection;
/**
* PortForwardOpenListener
*
* @author Rob Cernich
*/
public class PortForwardOpenListener implements OpenListener {
private final ByteBufferPool bufferPool;
private final int bufferSize;
private final String urlPath;
private final int targetPort;
private final AtomicInteger requestId;
private volatile OptionMap undertowOptions;
private ClientConnection masterPortForwardConnection;
public PortForwardOpenListener(ClientConnection masterPortForwardConnection, final String urlPath,
final int targetPort, final AtomicInteger requestId, final Pool<ByteBuffer> pool,
final OptionMap undertowOptions) {
this.masterPortForwardConnection = masterPortForwardConnection;
this.urlPath = urlPath;
this.targetPort = targetPort;
this.requestId = requestId;
this.undertowOptions = undertowOptions;
this.bufferPool = new XnioByteBufferPool(pool);
Pooled<ByteBuffer> buf = pool.allocate();
this.bufferSize = buf.getResource().remaining();
buf.free();
}
@Override
public void handleEvent(StreamConnection channel) {
//set read and write timeouts
try {
Integer readTimeout = channel.getOption(Options.READ_TIMEOUT);
Integer idleTimeout = undertowOptions.get(UndertowOptions.IDLE_TIMEOUT);
if ((readTimeout == null || readTimeout <= 0) && idleTimeout != null) {
readTimeout = idleTimeout;
} else if (readTimeout != null && idleTimeout != null && idleTimeout > 0) {
readTimeout = Math.min(readTimeout, idleTimeout);
}
if (readTimeout != null && readTimeout > 0) {
channel.getSourceChannel()
.setConduit(
new ReadTimeoutStreamSourceConduit(channel.getSourceChannel().getConduit(), channel, this));
}
Integer writeTimeout = channel.getOption(Options.WRITE_TIMEOUT);
if ((writeTimeout == null || writeTimeout <= 0) && idleTimeout != null) {
writeTimeout = idleTimeout;
} else if (writeTimeout != null && idleTimeout != null && idleTimeout > 0) {
writeTimeout = Math.min(writeTimeout, idleTimeout);
}
if (writeTimeout != null && writeTimeout > 0) {
channel.getSinkChannel()
.setConduit(new WriteTimeoutStreamSinkConduit(channel.getSinkChannel().getConduit(), channel, this));
}
} catch (IOException e) {
IoUtils.safeClose(channel);
UndertowLogger.REQUEST_IO_LOGGER.ioException(e);
}
final PortForwardServerConnection connection =
new PortForwardServerConnection(channel, bufferPool, undertowOptions, bufferSize);
connection.getWorker().execute(new Runnable() {
@Override
public void run() {
try {
connection.startForwarding(masterPortForwardConnection, urlPath, targetPort,
requestId.getAndIncrement());
} catch (IOException e) {
} finally {
IoUtils.safeClose(connection);
}
}
});
}
@Override
public HttpHandler getRootHandler() {
return null;
}
@Override
public void setRootHandler(HttpHandler rootHandler) {
}
@Override
public OptionMap getUndertowOptions() {
return undertowOptions;
}
@Override
public void setUndertowOptions(OptionMap undertowOptions) {
if (undertowOptions == null) {
throw UndertowMessages.MESSAGES.argumentCannotBeNull("undertowOptions");
}
this.undertowOptions = undertowOptions;
}
@Override
public ByteBufferPool getBufferPool() {
return bufferPool;
}
@Override
public ConnectorStatistics getConnectorStatistics() {
return null;
}
}