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// Copyright 2017 The Bazel Authors. All rights reserved.
//
// 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 com.google.devtools.build.android;
import com.google.common.util.concurrent.ListeningExecutorService;
import java.io.Closeable;
import java.io.IOException;
import java.util.List;
/** Shutdowns and verifies that no tasks are running in the executor service. */
final class ExecutorServiceCloser implements Closeable {
private final ListeningExecutorService executorService;
private ExecutorServiceCloser(ListeningExecutorService executorService) {
this.executorService = executorService;
}
@Override
public void close() throws IOException {
List<Runnable> unfinishedTasks = executorService.shutdownNow();
if (!unfinishedTasks.isEmpty()) {
throw new IOException("Shutting down the executor with unfinished tasks:" + unfinishedTasks);
}
}
public static Closeable createWith(ListeningExecutorService executorService) {
return new ExecutorServiceCloser(executorService);
}
}
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