org.xnio.TranslatingResult Maven / Gradle / Ivy
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* JBoss, Home of Professional Open Source
*
* Copyright 2009 Red Hat, Inc. and/or its affiliates.
*
* Licensed 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.xnio;
import java.io.IOException;
/**
* Abstract base class for {@code Result}s which translate from one type to another.
*
* @param the result type to accept
* @param the result type to pass to the delegate
*/
public abstract class TranslatingResult implements Result {
private final Result output;
protected TranslatingResult(final Result output) {
this.output = output;
}
public boolean setException(final IOException exception) {
return output.setException(exception);
}
public boolean setCancelled() {
return output.setCancelled();
}
public boolean setResult(final T result) {
try {
return output.setResult(translate(result));
} catch (IOException e) {
return output.setException(e);
}
}
protected abstract O translate(T input) throws IOException;
}