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CancelExecutionStep.java
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CancelExecutionStep.java
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/*
* Copyright 2018 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.execution.steps;
import org.gradle.api.BuildCancelledException;
import org.gradle.initialization.BuildCancellationToken;
import org.gradle.internal.execution.UnitOfWork;
public class CancelExecutionStep<C extends Context, R extends Result> implements Step<C, R> {
private final BuildCancellationToken cancellationToken;
private final Step<? super C, ? extends R> delegate;
public CancelExecutionStep(
BuildCancellationToken cancellationToken,
Step<? super C, ? extends R> delegate
) {
this.cancellationToken = cancellationToken;
this.delegate = delegate;
}
@SuppressWarnings("Finally")
@Override
public R execute(UnitOfWork work, C context) {
Thread thread = Thread.currentThread();
Runnable interrupt = thread::interrupt;
try {
cancellationToken.addCallback(interrupt);
return delegate.execute(work, context);
} finally {
cancellationToken.removeCallback(interrupt);
if (cancellationToken.isCancellationRequested()) {
Thread.interrupted();
throw new BuildCancelledException("Build cancelled while executing " + work.getDisplayName());
}
}
}
}