Change package name to androidx.work.

Bug: 73305035
Test: Ran tests.
Change-Id: Ie19083c92bb2486a26dd8b408b2e51c8f6850da7

diff --git a/background/workmanager/src/main/java/androidx/work/impl/background/systemjob/SystemJobService.java b/background/workmanager/src/main/java/androidx/work/impl/background/systemjob/SystemJobService.java
new file mode 100644
index 0000000..34a2cbe
--- /dev/null
+++ b/background/workmanager/src/main/java/androidx/work/impl/background/systemjob/SystemJobService.java

@@ -0,0 +1,115 @@
+/*
+ * Copyright 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 androidx.work.impl.background.systemjob;
+
+import android.annotation.TargetApi;
+import android.app.job.JobParameters;
+import android.app.job.JobService;
+import android.os.PersistableBundle;
+import android.support.annotation.NonNull;
+import android.support.annotation.RestrictTo;
+import android.text.TextUtils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import androidx.work.impl.ExecutionListener;
+import androidx.work.impl.WorkManagerImpl;
+import androidx.work.impl.logger.Logger;
+
+/**
+ * Service invoked by {@link android.app.job.JobScheduler} to run work tasks.
+ *
+ * @hide
+ */
+@RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
+@TargetApi(WorkManagerImpl.MIN_JOB_SCHEDULER_API_LEVEL)
+public class SystemJobService extends JobService implements ExecutionListener {
+    private static final String TAG = "SystemJobService";
+    private WorkManagerImpl mWorkManagerImpl;
+    private final Map<String, JobParameters> mJobParameters = new HashMap<>();
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        mWorkManagerImpl = WorkManagerImpl.getInstance();
+        mWorkManagerImpl.getProcessor().addExecutionListener(this);
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        mWorkManagerImpl.getProcessor().removeExecutionListener(this);
+    }
+
+    @Override
+    public boolean onStartJob(JobParameters params) {
+        PersistableBundle extras = params.getExtras();
+        String workSpecId = extras.getString(SystemJobInfoConverter.EXTRA_WORK_SPEC_ID);
+        if (TextUtils.isEmpty(workSpecId)) {
+            Logger.error(TAG, "WorkSpec id not found!");
+            return false;
+        }
+
+        boolean isPeriodic = extras.getBoolean(SystemJobInfoConverter.EXTRA_IS_PERIODIC, false);
+        if (isPeriodic && params.isOverrideDeadlineExpired()) {
+            Logger.debug(TAG, "Override deadline expired for id %s. Retry requested", workSpecId);
+            jobFinished(params, true);
+            return false;
+        }
+
+        Logger.debug(TAG, "onStartJob for %s", workSpecId);
+
+        synchronized (mJobParameters) {
+            mJobParameters.put(workSpecId, params);
+        }
+        mWorkManagerImpl.startWork(workSpecId);
+        return true;
+    }
+
+    @Override
+    public boolean onStopJob(JobParameters params) {
+        String workSpecId = params.getExtras().getString(SystemJobInfoConverter.EXTRA_WORK_SPEC_ID);
+        if (TextUtils.isEmpty(workSpecId)) {
+            Logger.error(TAG, "WorkSpec id not found!");
+            return false;
+        }
+
+        Logger.debug(TAG, "onStopJob for %s", workSpecId);
+
+        synchronized (mJobParameters) {
+            mJobParameters.remove(workSpecId);
+        }
+        mWorkManagerImpl.stopWork(workSpecId);
+        return !mWorkManagerImpl.getProcessor().isCancelled(workSpecId);
+    }
+
+    @Override
+    public void onExecuted(
+            @NonNull String workSpecId,
+            boolean isSuccessful,
+            boolean needsReschedule) {
+        Logger.debug(TAG, "%s executed on JobScheduler", workSpecId);
+        JobParameters parameters;
+        synchronized (mJobParameters) {
+            parameters = mJobParameters.get(workSpecId);
+        }
+        if (parameters != null) {
+            jobFinished(parameters, needsReschedule);
+        }
+    }
+}