org.apache.mina.core.future.DefaultConnectFuture Maven / Gradle / Ivy
/*
* 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.mina.core.future;
import org.apache.mina.core.RuntimeIoException;
import org.apache.mina.core.session.IoSession;
/**
* A default implementation of {@link ConnectFuture}.
*
* @author Apache MINA Project
*/
public class DefaultConnectFuture extends DefaultIoFuture implements ConnectFuture {
/** A static object stored into the ConnectFuture when teh connection has been cancelled */
private static final Object CANCELED = new Object();
/**
* Creates a new instance.
*/
public DefaultConnectFuture() {
super(null);
}
/**
* Creates a new instance of a Connection Failure, with the associated cause.
*
* @param exception The exception that caused the failure
* @return a new {@link ConnectFuture} which is already marked as 'failed to connect'.
*/
public static ConnectFuture newFailedFuture(Throwable exception) {
DefaultConnectFuture failedFuture = new DefaultConnectFuture();
failedFuture.setException(exception);
return failedFuture;
}
/**
* {@inheritDoc}
*/
@Override
public IoSession getSession() {
Object v = getValue();
if (v instanceof IoSession) {
return (IoSession) v;
} else if (v instanceof RuntimeException) {
throw (RuntimeException) v;
} else if (v instanceof Error) {
throw (Error) v;
} else if (v instanceof Throwable) {
throw (RuntimeIoException) new RuntimeIoException("Failed to get the session.").initCause((Throwable) v);
} else {
return null;
}
}
/**
* {@inheritDoc}
*/
@Override
public Throwable getException() {
Object v = getValue();
if (v instanceof Throwable) {
return (Throwable) v;
} else {
return null;
}
}
/**
* {@inheritDoc}
*/
@Override
public boolean isConnected() {
return getValue() instanceof IoSession;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isCanceled() {
return getValue() == CANCELED;
}
/**
* {@inheritDoc}
*/
@Override
public void setSession(IoSession session) {
if (session == null) {
throw new IllegalArgumentException("session");
}
setValue(session);
}
/**
* {@inheritDoc}
*/
@Override
public void setException(Throwable exception) {
if (exception == null) {
throw new IllegalArgumentException("exception");
}
setValue(exception);
}
/**
* {@inheritDoc}
*/
@Override
public boolean cancel() {
return setValue(CANCELED);
}
/**
* {@inheritDoc}
*/
@Override
public ConnectFuture await() throws InterruptedException {
return (ConnectFuture) super.await();
}
/**
* {@inheritDoc}
*/
@Override
public ConnectFuture awaitUninterruptibly() {
return (ConnectFuture) super.awaitUninterruptibly();
}
/**
* {@inheritDoc}
*/
@Override
public ConnectFuture addListener(IoFutureListener listener) {
return (ConnectFuture) super.addListener(listener);
}
/**
* {@inheritDoc}
*/
@Override
public ConnectFuture removeListener(IoFutureListener listener) {
return (ConnectFuture) super.removeListener(listener);
}
}