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SimpleJobService.java
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SimpleJobService.java
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// Copyright 2016 Google, Inc.
//
// 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.firebase.jobdispatcher;
import android.os.AsyncTask;
import android.support.annotation.CallSuper;
// import android.support.annotation.GuardedBy;
import android.support.annotation.NonNull;
import android.support.v4.util.SimpleArrayMap;
/**
* SimpleJobService provides a simple way of doing background work in a JobService.
*
* <p>Users should override onRunJob and return one of the {@link JobResult} ints.
*/
public abstract class SimpleJobService extends JobService {
// @GuardedBy("runningJobs")
private final SimpleArrayMap<JobParameters, AsyncJobTask> runningJobs = new SimpleArrayMap<>();
@CallSuper
@Override
public boolean onStartJob(@NonNull JobParameters job) {
AsyncJobTask async = new AsyncJobTask(this, job);
synchronized (runningJobs) {
runningJobs.put(job, async);
}
async.execute();
return true; // more work to do
}
@CallSuper
@Override
public boolean onStopJob(@NonNull JobParameters job) {
synchronized (runningJobs) {
AsyncJobTask async = runningJobs.remove(job);
if (async != null) {
async.cancel(true);
return true;
}
}
return false;
}
private void onJobFinished(JobParameters jobParameters, boolean b) {
synchronized (runningJobs) {
runningJobs.remove(jobParameters);
}
jobFinished(jobParameters, b);
}
@JobResult
public abstract int onRunJob(@NonNull JobParameters job);
private static class AsyncJobTask extends AsyncTask<Void, Void, Integer> {
private final SimpleJobService jobService;
private final JobParameters jobParameters;
private AsyncJobTask(SimpleJobService jobService, JobParameters jobParameters) {
this.jobService = jobService;
this.jobParameters = jobParameters;
}
@Override
protected Integer doInBackground(Void... params) {
return jobService.onRunJob(jobParameters);
}
@Override
protected void onPostExecute(Integer integer) {
jobService.onJobFinished(jobParameters, integer == JobService.RESULT_FAIL_RETRY);
}
}
}