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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.common.concurrent.DialerExecutorComponent;
import com.android.dialer.common.database.Selection;
import com.android.dialer.rtt.RttTranscriptContract.RttTranscriptColumn;
import com.google.common.collect.ImmutableSet;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.protobuf.InvalidProtocolBufferException;
/** Util class to save and load RTT transcript. */
public final class RttTranscriptUtil {
public static ListenableFuture<ImmutableSet<String>> getAvailableRttTranscriptIds(
Context context, ImmutableSet<String> transcriptIds) {
return DialerExecutorComponent.get(context)
.backgroundExecutor()
.submit(() -> checkRttTranscriptAvailability(context, transcriptIds));
}
@WorkerThread
private static ImmutableSet<String> checkRttTranscriptAvailability(
Context context, ImmutableSet<String> transcriptIds) {
Assert.isWorkerThread();
RttTranscriptDatabaseHelper databaseHelper = new RttTranscriptDatabaseHelper(context);
ImmutableSet.Builder<String> builder = ImmutableSet.builder();
Selection selection =
Selection.builder()
.and(Selection.column(RttTranscriptColumn.TRANSCRIPT_ID).in(transcriptIds))
.build();
try (Cursor cursor =
databaseHelper
.getReadableDatabase()
.query(
RttTranscriptDatabaseHelper.TABLE,
new String[] {RttTranscriptColumn.TRANSCRIPT_ID},
selection.getSelection(),
selection.getSelectionArgs(),
null,
null,
null)) {
if (cursor != null) {
while (cursor.moveToNext()) {
builder.add(cursor.getString(0));
}
}
}
databaseHelper.close();
return builder.build();
}
static ListenableFuture<RttTranscript> loadRttTranscript(Context context, String transcriptId) {
return DialerExecutorComponent.get(context)
.lightweightExecutor()
.submit(() -> getRttTranscript(context, transcriptId));
}
@WorkerThread
private static RttTranscript getRttTranscript(Context context, String transcriptId) {
Assert.isWorkerThread();
RttTranscriptDatabaseHelper databaseHelper = new RttTranscriptDatabaseHelper(context);
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;
}
} finally {
databaseHelper.close();
}
}
public static ListenableFuture<Void> saveRttTranscript(
Context context, RttTranscript rttTranscript) {
return DialerExecutorComponent.get(context)
.backgroundExecutor()
.submit(
() -> {
save(context, rttTranscript);
return null;
});
}
@WorkerThread
private static void save(Context context, RttTranscript rttTranscript) {
Assert.isWorkerThread();
RttTranscriptDatabaseHelper databaseHelper = new RttTranscriptDatabaseHelper(context);
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);
databaseHelper.close();
if (id < 0) {
throw new RuntimeException("Failed to save RTT transcript");
}
}
}
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