/*
* Copyright 2016 the original author or authors.
*
* 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.gradle.internal.resolve.result;
import org.gradle.api.Nullable;
public class DefaultBuildableTypedResolveResult<T, E extends Throwable> extends DefaultResourceAwareResolveResult implements BuildableTypedResolveResult<T, E> {
private T result;
private E failure;
@Override
public void failed(E failure) {
this.result = null;
this.failure = failure;
}
@Override
public void resolved(T result) {
this.result = result;
this.failure = null;
}
@Override
public T getResult() throws E {
assertHasResult();
if (failure != null) {
throw failure;
}
return result;
}
@Nullable
@Override
public E getFailure() {
assertHasResult();
return failure;
}
public boolean isSuccessful() {
return result != null;
}
@Override
public boolean hasResult() {
return failure != null || result != null;
}
protected void assertHasResult() {
if (!hasResult()) {
throw new IllegalStateException("No result has been specified.");
}
}
}