1 files changed, 85 insertions, 0 deletions
diff --git a/java/com/android/voicemail/impl/transcribe/TranscriptionBackfillService.java b/java/com/android/voicemail/impl/transcribe/TranscriptionBackfillService.java
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index 000000000..f3c6e64f4
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+++ b/java/com/android/voicemail/impl/transcribe/TranscriptionBackfillService.java
@@ -0,0 +1,85 @@
+/*
+ * 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.voicemail.impl.transcribe;
+
+import android.app.job.JobInfo;
+import android.app.job.JobScheduler;
+import android.app.job.JobWorkItem;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.support.annotation.WorkerThread;
+import android.support.v4.app.JobIntentService;
+import android.support.v4.os.BuildCompat;
+import com.android.dialer.common.LogUtil;
+import com.android.dialer.common.concurrent.ThreadUtil;
+import com.android.dialer.constants.ScheduledJobIds;
+import java.util.List;
+
+/**
+ * JobScheduler service for transcribing old voicemails. This service does a database scan for
+ * un-transcribed voicemails and schedules transcription tasks for them, once we have an un-metered
+ * network connection.
+ */
+public class TranscriptionBackfillService extends JobIntentService {
+
+  /** Schedule a task to scan the database for untranscribed voicemails */
+  public static boolean scheduleTask(Context context) {
+    if (BuildCompat.isAtLeastO()) {
+      LogUtil.enterBlock("TranscriptionBackfillService.transcribeOldVoicemails");
+      ComponentName componentName = new ComponentName(context, TranscriptionBackfillService.class);
+      JobInfo.Builder builder =
+          new JobInfo.Builder(ScheduledJobIds.VVM_TRANSCRIPTION_BACKFILL_JOB, componentName)
+              .setRequiredNetworkType(JobInfo.NETWORK_TYPE_UNMETERED);
+      JobScheduler scheduler = context.getSystemService(JobScheduler.class);
+      return scheduler.enqueue(builder.build(), makeWorkItem()) == JobScheduler.RESULT_SUCCESS;
+    } else {
+      LogUtil.i("TranscriptionBackfillService.transcribeOldVoicemails", "not supported");
+      return false;
+    }
+  }
+
+  private static JobWorkItem makeWorkItem() {
+    Intent intent = new Intent();
+    return new JobWorkItem(intent);
+  }
+
+  @Override
+  @WorkerThread
+  protected void onHandleWork(Intent intent) {
+    LogUtil.enterBlock("TranscriptionBackfillService.onHandleWork");
+
+    TranscriptionDbHelper dbHelper = new TranscriptionDbHelper(this);
+    List<Uri> untranscribed = dbHelper.getUntranscribedVoicemails();
+    LogUtil.i(
+        "TranscriptionBackfillService.onHandleWork",
+        "found " + untranscribed.size() + " untranscribed voicemails");
+    // TODO(mdooley): Consider doing the actual transcriptions here instead of scheduling jobs.
+    for (Uri uri : untranscribed) {
+      ThreadUtil.postOnUiThread(
+          () -> {
+            TranscriptionService.scheduleNewVoicemailTranscriptionJob(this, uri, false);
+          });
+    }
+  }
+
+  @Override
+  public void onDestroy() {
+    LogUtil.enterBlock("TranscriptionBackfillService.onDestroy");
+    super.onDestroy();
+  }
+}