/*
* 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.mina;
import java.net.SocketAddress;
import java.util.concurrent.atomic.AtomicReference;
import org.apache.mina.core.future.ConnectFuture;
import org.apache.mina.core.future.IoFutureListener;
import org.apache.mina.core.service.IoConnector;
import org.apache.mina.core.service.IoHandler;
import org.apache.mina.core.service.IoProcessor;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.transport.socket.nio.NioSession;
import org.apache.mina.transport.socket.nio.NioSocketConnector;
import org.apache.sshd.common.FactoryManager;
import org.apache.sshd.common.future.DefaultSshFuture;
import org.apache.sshd.common.io.IoConnectFuture;
/**
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
public class MinaConnector extends MinaService implements org.apache.sshd.common.io.IoConnector, IoHandler {
protected final AtomicReference<IoConnector> connectorHolder = new AtomicReference<>(null);
public MinaConnector(FactoryManager manager, org.apache.sshd.common.io.IoHandler handler, IoProcessor<NioSession> ioProcessor) {
super(manager, handler, ioProcessor);
}
protected IoConnector createConnector() {
NioSocketConnector connector = new NioSocketConnector(ioProcessor);
configure(connector.getSessionConfig());
return connector;
}
protected IoConnector getConnector() {
IoConnector connector;
synchronized (connectorHolder) {
connector = connectorHolder.get();
if (connector != null) {
return connector;
}
connector = createConnector();
connector.setHandler(this);
connectorHolder.set(connector);
}
if (log.isDebugEnabled()) {
log.debug("Created IoConnector");
}
return connector;
}
@Override
protected org.apache.mina.core.service.IoService getIoService() {
return getConnector();
}
@Override
public IoConnectFuture connect(SocketAddress address) {
class Future extends DefaultSshFuture<IoConnectFuture> implements IoConnectFuture {
Future(Object lock) {
super(lock);
}
@Override
public org.apache.sshd.common.io.IoSession getSession() {
Object v = getValue();
return v instanceof org.apache.sshd.common.io.IoSession ? (org.apache.sshd.common.io.IoSession) v : null;
}
@Override
public Throwable getException() {
Object v = getValue();
return v instanceof Throwable ? (Throwable) v : null;
}
@Override
public boolean isConnected() {
return getValue() instanceof org.apache.sshd.common.io.IoSession;
}
@Override
public void setSession(org.apache.sshd.common.io.IoSession session) {
setValue(session);
}
@Override
public void setException(Throwable exception) {
setValue(exception);
}
}
IoConnectFuture future = new Future(null);
IoConnector connector = getConnector();
ConnectFuture connectFuture = connector.connect(address);
connectFuture.addListener((IoFutureListener<ConnectFuture>) cf -> {
Throwable t = cf.getException();
if (t != null) {
future.setException(t);
} else if (cf.isCanceled()) {
future.cancel();
} else {
IoSession ioSession = cf.getSession();
org.apache.sshd.common.io.IoSession sshSession = getSession(ioSession);
future.setSession(sshSession);
}
});
return future;
}
}