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/*
* Copyright (C) 2017 The Android Open Source Project
*
* 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.android.dialer.common.concurrent;
import com.google.common.util.concurrent.AsyncCallable;
import com.google.common.util.concurrent.ListenableFuture;
import java.util.concurrent.Executor;
/**
* Serializes execution of a set of operations. This class guarantees that a submitted callable will
* not be called before previously submitted callables have completed.
*/
public final class DialerFutureSerializer {
/** Enqueues a task to run when the previous task (if any) completes. */
public <T> ListenableFuture<T> submitAsync(final AsyncCallable<T> callable, Executor executor) {
// TODO(zachh): This is just a dummy implementation until we fix guava API level issues.
try {
return callable.call();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
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