1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.deviceinfo; 18 19 import static com.android.settings.deviceinfo.StorageSettings.TAG; 20 21 import android.app.usage.ExternalStorageStats; 22 import android.app.usage.StorageStatsManager; 23 import android.content.Context; 24 import android.content.Intent; 25 import android.content.pm.UserInfo; 26 import android.net.TrafficStats; 27 import android.os.AsyncTask; 28 import android.os.UserHandle; 29 import android.os.UserManager; 30 import android.os.storage.StorageManager; 31 import android.os.storage.VolumeInfo; 32 import android.telecom.Log; 33 import android.text.format.DateUtils; 34 import android.text.format.Formatter; 35 36 import java.io.IOException; 37 import java.util.UUID; 38 39 public abstract class MigrateEstimateTask extends AsyncTask<Void, Void, Long> { 40 private static final String EXTRA_SIZE_BYTES = "size_bytes"; 41 42 /** 43 * Assume roughly a Class 10 card. 44 */ 45 private static final long SPEED_ESTIMATE_BPS = 10 * TrafficStats.MB_IN_BYTES; 46 47 private final Context mContext; 48 49 private long mSizeBytes = -1; 50 MigrateEstimateTask(Context context)51 public MigrateEstimateTask(Context context) { 52 mContext = context; 53 } 54 copyFrom(Intent intent)55 public void copyFrom(Intent intent) { 56 mSizeBytes = intent.getLongExtra(EXTRA_SIZE_BYTES, -1); 57 } 58 copyTo(Intent intent)59 public void copyTo(Intent intent) { 60 intent.putExtra(EXTRA_SIZE_BYTES, mSizeBytes); 61 } 62 63 @Override doInBackground(Void... params)64 protected Long doInBackground(Void... params) { 65 if (mSizeBytes != -1) { 66 return mSizeBytes; 67 } 68 69 final UserManager user = mContext.getSystemService(UserManager.class); 70 final StorageManager storage = mContext.getSystemService(StorageManager.class); 71 final StorageStatsManager stats = mContext.getSystemService(StorageStatsManager.class); 72 73 final VolumeInfo privateVol = mContext.getPackageManager().getPrimaryStorageCurrentVolume(); 74 final VolumeInfo emulatedVol = storage.findEmulatedForPrivate(privateVol); 75 76 if (emulatedVol == null) { 77 Log.w(TAG, "Failed to find current primary storage"); 78 return -1L; 79 } 80 81 try { 82 final UUID emulatedUuid = storage.getUuidForPath(emulatedVol.getPath()); 83 Log.d(TAG, "Measuring size of " + emulatedUuid); 84 85 long size = 0; 86 for (UserInfo u : user.getUsers()) { 87 final ExternalStorageStats s = stats.queryExternalStatsForUser(emulatedUuid, 88 UserHandle.of(u.id)); 89 size += s.getTotalBytes(); 90 if (u.id == UserHandle.USER_SYSTEM) { 91 size += s.getObbBytes(); 92 } 93 } 94 return size; 95 } catch (IOException e) { 96 Log.w(TAG, "Failed to measure", e); 97 return -1L; 98 } 99 } 100 101 @Override onPostExecute(Long result)102 protected void onPostExecute(Long result) { 103 mSizeBytes = result; 104 long timeMillis = (mSizeBytes * DateUtils.SECOND_IN_MILLIS) / SPEED_ESTIMATE_BPS; 105 timeMillis = Math.max(timeMillis, DateUtils.SECOND_IN_MILLIS); 106 107 final String size = Formatter.formatFileSize(mContext, mSizeBytes); 108 final String time = DateUtils.formatDuration(timeMillis).toString(); 109 onPostExecute(size, time); 110 } 111 onPostExecute(String size, String time)112 public abstract void onPostExecute(String size, String time); 113 } 114