/*
* Copyright (c) 2011-2013 The original author or authors
* ------------------------------------------------------
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* The Apache License v2.0 is available at
* http://www.opensource.org/licenses/apache2.0.php
*
* You may elect to redistribute this code under either of these licenses.
*/
package io.vertx.core.impl;
import io.vertx.core.AsyncResult;
import io.vertx.core.Future;
import io.vertx.core.Handler;
/**
* @author <a href="mailto:julien@julienviet.com">Julien Viet</a>
*/
class SucceededFuture<T> implements Future<T> {
private final T result;
/**
* Create a future that has already succeeded
* @param result the result
*/
SucceededFuture(T result) {
this.result = result;
}
@Override
public boolean isComplete() {
return true;
}
@Override
public Future<T> setHandler(Handler<AsyncResult<T>> handler) {
handler.handle(this);
return this;
}
@Override
public void complete(T result) {
throw new IllegalStateException("Result is already complete: succeeded");
}
@Override
public void complete() {
throw new IllegalStateException("Result is already complete: succeeded");
}
@Override
public void fail(Throwable cause) {
throw new IllegalStateException("Result is already complete: succeeded");
}
@Override
public void fail(String failureMessage) {
throw new IllegalStateException("Result is already complete: succeeded");
}
@Override
public boolean tryComplete(T result) {
return false;
}
@Override
public boolean tryComplete() {
return false;
}
@Override
public boolean tryFail(Throwable cause) {
return false;
}
@Override
public boolean tryFail(String failureMessage) {
return false;
}
@Override
public T result() {
return result;
}
@Override
public Throwable cause() {
return null;
}
@Override
public boolean succeeded() {
return true;
}
@Override
public boolean failed() {
return false;
}
@Override
public void handle(AsyncResult<T> asyncResult) {
throw new IllegalStateException("Result is already complete: succeeded");
}
@Override
public String toString() {
return "Future{result=" + result + "}";
}
}