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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.voicemail.impl.transcribe;
import android.annotation.TargetApi;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build.VERSION_CODES;
import android.provider.VoicemailContract.Voicemails;
import android.support.annotation.VisibleForTesting;
import android.support.annotation.WorkerThread;
import android.support.v4.os.BuildCompat;
import android.util.Pair;
import com.android.dialer.common.Assert;
import com.android.dialer.common.LogUtil;
import java.util.ArrayList;
import java.util.List;
/** Helper class for reading and writing transcription data in the database */
@TargetApi(VERSION_CODES.O)
public class TranscriptionDbHelper {
@VisibleForTesting
static final String[] PROJECTION =
new String[] {
Voicemails._ID, // 0
Voicemails.TRANSCRIPTION, // 1
VoicemailCompat.TRANSCRIPTION_STATE // 2
};
static final int ID = 0;
static final int TRANSCRIPTION = 1;
static final int TRANSCRIPTION_STATE = 2;
private final ContentResolver contentResolver;
private final Uri uri;
TranscriptionDbHelper(Context context, Uri uri) {
Assert.isNotNull(uri);
this.contentResolver = context.getContentResolver();
this.uri = uri;
}
TranscriptionDbHelper(Context context) {
this(context, Voicemails.buildSourceUri(context.getPackageName()));
}
@WorkerThread
@TargetApi(VERSION_CODES.M) // used for try with resources
Pair<String, Integer> getTranscriptionAndState() {
Assert.checkState(BuildCompat.isAtLeastO());
Assert.isWorkerThread();
try (Cursor cursor = contentResolver.query(uri, PROJECTION, null, null, null)) {
if (cursor == null) {
LogUtil.e("TranscriptionDbHelper.getTranscriptionAndState", "query failed.");
return null;
}
if (cursor.moveToFirst()) {
String transcription = cursor.getString(TRANSCRIPTION);
int transcriptionState = cursor.getInt(TRANSCRIPTION_STATE);
return new Pair<>(transcription, transcriptionState);
}
}
LogUtil.i("TranscriptionDbHelper.getTranscriptionAndState", "query returned no results");
return null;
}
@WorkerThread
@TargetApi(VERSION_CODES.M) // used for try with resources
List<Uri> getUntranscribedVoicemails() {
Assert.checkArgument(BuildCompat.isAtLeastO());
Assert.isWorkerThread();
List<Uri> untranscribed = new ArrayList<>();
String whereClause =
Voicemails.TRANSCRIPTION + " is NULL AND " + VoicemailCompat.TRANSCRIPTION_STATE + "=?";
String[] whereArgs = {String.valueOf(VoicemailCompat.TRANSCRIPTION_NOT_STARTED)};
try (Cursor cursor = contentResolver.query(uri, PROJECTION, whereClause, whereArgs, null)) {
if (cursor == null) {
LogUtil.e("TranscriptionDbHelper.getUntranscribedVoicemails", "query failed.");
} else {
while (cursor.moveToNext()) {
untranscribed.add(ContentUris.withAppendedId(uri, cursor.getLong(ID)));
}
}
}
return untranscribed;
}
@WorkerThread
void setTranscriptionState(int transcriptionState) {
Assert.isWorkerThread();
LogUtil.i(
"TranscriptionDbHelper.setTranscriptionState",
"uri: " + uri + ", state: " + transcriptionState);
ContentValues values = new ContentValues();
values.put(VoicemailCompat.TRANSCRIPTION_STATE, transcriptionState);
updateDatabase(values);
}
@WorkerThread
void setTranscriptionAndState(String transcription, int transcriptionState) {
Assert.isWorkerThread();
LogUtil.i(
"TranscriptionDbHelper.setTranscriptionAndState",
"uri: " + uri + ", state: " + transcriptionState);
ContentValues values = new ContentValues();
values.put(Voicemails.TRANSCRIPTION, transcription);
values.put(VoicemailCompat.TRANSCRIPTION_STATE, transcriptionState);
updateDatabase(values);
}
private void updateDatabase(ContentValues values) {
int updatedCount = contentResolver.update(uri, values, null, null);
if (updatedCount != 1) {
LogUtil.e(
"TranscriptionDbHelper.updateDatabase",
"Wrong row count, should have updated 1 row, was: " + updatedCount);
}
}
}
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