/*
* Copyright 2013 the original author or authors.
*
* Licensed under the MIT License (the "License"); you may not use this
* file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://opensource.org/licenses/MIT
*
* 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 io.vertx.lang.php;
import org.vertx.java.core.AsyncResult;
/**
* An implementation of the ArgumentWrapper interface
* that wraps asynchronous results.
*
* @author Jordan Halterman
*/
public abstract class AsyncResultWrapper<T, E> implements ResultModifier<AsyncResult<T>, AsyncResult<E>> {
@Override
public AsyncResult<E> modify(final AsyncResult<T> result) {
return new AsyncResult<E>() {
@Override
public Throwable cause() {
return result.cause();
}
@Override
public boolean failed() {
return result.failed();
}
@Override
public E result() {
if (result.succeeded()) {
return wrap(result.result());
}
return null;
}
@Override
public boolean succeeded() {
return result.succeeded();
}
};
}
/**
* Wraps the result in the appropriate wrapper.
*/
public abstract E wrap(T result);
}
