/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.sshd.common.io.nio2;
import java.io.IOException;
import java.net.SocketAddress;
import java.nio.channels.AsynchronousChannelGroup;
import java.nio.channels.AsynchronousSocketChannel;
import org.apache.sshd.common.FactoryManager;
import org.apache.sshd.common.future.DefaultSshFuture;
import org.apache.sshd.common.io.IoConnectFuture;
import org.apache.sshd.common.io.IoConnector;
import org.apache.sshd.common.io.IoHandler;
import org.apache.sshd.common.io.IoSession;
/**
*/
public class Nio2Connector extends Nio2Service implements IoConnector {
public Nio2Connector(FactoryManager manager, IoHandler handler, AsynchronousChannelGroup group) {
super(manager, handler, group);
}
public IoConnectFuture connect(SocketAddress address) {
logger.debug("Connecting to {}", address);
final IoConnectFuture future = new DefaultIoConnectFuture(null);
try {
final AsynchronousSocketChannel socket = AsynchronousSocketChannel.open(group);
socket.connect(address, null, new Nio2CompletionHandler<Void, Object>() {
protected void onCompleted(Void result, Object attachment) {
try {
Nio2Session session = new Nio2Session(Nio2Connector.this, handler, socket);
handler.sessionCreated(session);
sessions.put(session.getId(), session);
future.setSession(session);
session.startReading();
} catch (Throwable e) {
try {
socket.close();
} catch (IOException t) {
// Ignore
}
future.setException(e);
}
}
protected void onFailed(final Throwable exc, final Object attachment) {
future.setException(exc);
}
});
} catch (IOException exc) {
future.setException(exc);
}
return future;
}
static class DefaultIoConnectFuture extends DefaultSshFuture<IoConnectFuture> implements IoConnectFuture {
DefaultIoConnectFuture(Object lock) {
super(lock);
}
public IoSession getSession() {
Object v = getValue();
return v instanceof IoSession ? (IoSession) v : null;
}
public Throwable getException() {
Object v = getValue();
return v instanceof Throwable ? (Throwable) v : null;
}
public boolean isConnected() {
return getValue() instanceof IoSession;
}
public void setSession(IoSession session) {
setValue(session);
}
public void setException(Throwable exception) {
setValue(exception);
}
}
}