| /* |
| * Copyright (C) 2020 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.systemui.bubbles.storage |
| |
| import android.content.Context |
| import android.util.AtomicFile |
| import android.util.Log |
| import java.io.File |
| import java.io.FileOutputStream |
| import java.io.IOException |
| import javax.inject.Inject |
| import javax.inject.Singleton |
| |
| @Singleton |
| class BubblePersistentRepository @Inject constructor( |
| context: Context |
| ) { |
| |
| private val bubbleFile: AtomicFile = AtomicFile(File(context.filesDir, |
| "overflow_bubbles.xml"), "overflow-bubbles") |
| |
| fun persistsToDisk(bubbles: List<BubbleEntity>): Boolean { |
| if (DEBUG) Log.d(TAG, "persisting ${bubbles.size} bubbles") |
| synchronized(bubbleFile) { |
| val stream: FileOutputStream = try { bubbleFile.startWrite() } catch (e: IOException) { |
| Log.e(TAG, "Failed to save bubble file", e) |
| return false |
| } |
| try { |
| writeXml(stream, bubbles) |
| bubbleFile.finishWrite(stream) |
| if (DEBUG) Log.d(TAG, "persisted ${bubbles.size} bubbles") |
| return true |
| } catch (e: Exception) { |
| Log.e(TAG, "Failed to save bubble file, restoring backup", e) |
| bubbleFile.failWrite(stream) |
| } |
| } |
| return false |
| } |
| |
| fun readFromDisk(): List<BubbleEntity> { |
| synchronized(bubbleFile) { |
| try { return bubbleFile.openRead().use(::readXml) } catch (e: Throwable) { |
| Log.e(TAG, "Failed to open bubble file", e) |
| } |
| return emptyList() |
| } |
| } |
| } |
| |
| private const val TAG = "BubblePersistentRepository" |
| private const val DEBUG = false |