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/*
* Copyright (C) 2018 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.rtt;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.support.annotation.WorkerThread;
import com.android.dialer.common.Assert;
import com.android.dialer.rtt.RttTranscriptContract.RttTranscriptColumn;
import com.google.protobuf.InvalidProtocolBufferException;
/** Util class to save and load RTT transcript. */
public final class RttTranscriptUtil {
private final RttTranscriptDatabaseHelper databaseHelper;
public RttTranscriptUtil(Context context) {
databaseHelper = new RttTranscriptDatabaseHelper(context.getApplicationContext());
}
@Override
protected void finalize() throws Throwable {
databaseHelper.close();
super.finalize();
}
/** @return true if there is RTT transcript available. */
@WorkerThread
public boolean checkRttTranscriptAvailability(String transcriptId) {
Assert.isWorkerThread();
try (Cursor cursor =
databaseHelper
.getReadableDatabase()
.query(
RttTranscriptDatabaseHelper.TABLE,
new String[] {RttTranscriptColumn.TRANSCRIPT_ID},
RttTranscriptColumn.TRANSCRIPT_ID + " = ?",
new String[] {transcriptId},
null,
null,
null)) {
if (cursor != null && cursor.moveToFirst()) {
return true;
} else {
return false;
}
}
}
@WorkerThread
public RttTranscript getRttTranscript(String transcriptId) {
Assert.isWorkerThread();
try (Cursor cursor =
databaseHelper
.getReadableDatabase()
.query(
RttTranscriptDatabaseHelper.TABLE,
new String[] {RttTranscriptColumn.TRANSCRIPT_DATA},
RttTranscriptColumn.TRANSCRIPT_ID + " = ?",
new String[] {transcriptId},
null,
null,
null)) {
if (cursor != null && cursor.moveToFirst()) {
try {
return RttTranscript.parseFrom(cursor.getBlob(0));
} catch (InvalidProtocolBufferException e) {
throw new RuntimeException("Parse failed for RTT transcript", e);
}
} else {
return null;
}
}
}
@WorkerThread
public void saveRttTranscript(RttTranscript rttTranscript) {
Assert.isWorkerThread();
ContentValues value = new ContentValues();
value.put(RttTranscriptColumn.TRANSCRIPT_ID, rttTranscript.getId());
value.put(RttTranscriptColumn.TRANSCRIPT_DATA, rttTranscript.toByteArray());
long id =
databaseHelper.getWritableDatabase().insert(RttTranscriptDatabaseHelper.TABLE, null, value);
if (id < 0) {
throw new RuntimeException("Failed to save RTT transcript");
}
}
}
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