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.content.ComponentName; 22 import android.content.Context; 23 import android.content.Intent; 24 import android.content.ServiceConnection; 25 import android.net.TrafficStats; 26 import android.os.AsyncTask; 27 import android.os.IBinder; 28 import android.os.RemoteException; 29 import android.os.UserHandle; 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 com.android.internal.app.IMediaContainerService; 37 38 import java.util.concurrent.CountDownLatch; 39 import java.util.concurrent.TimeUnit; 40 41 public abstract class MigrateEstimateTask extends AsyncTask<Void, Void, Long> implements 42 ServiceConnection { 43 private static final String EXTRA_SIZE_BYTES = "size_bytes"; 44 45 private static final ComponentName DEFAULT_CONTAINER_COMPONENT = new ComponentName( 46 "com.android.defcontainer", "com.android.defcontainer.DefaultContainerService"); 47 48 /** 49 * Assume roughly a Class 10 card. 50 */ 51 private static final long SPEED_ESTIMATE_BPS = 10 * TrafficStats.MB_IN_BYTES; 52 53 private final Context mContext; 54 private final StorageManager mStorage; 55 56 private final CountDownLatch mConnected = new CountDownLatch(1); 57 private IMediaContainerService mService; 58 59 private long mSizeBytes = -1; 60 private long mTimeMillis = -1; 61 MigrateEstimateTask(Context context)62 public MigrateEstimateTask(Context context) { 63 mContext = context; 64 mStorage = context.getSystemService(StorageManager.class); 65 } 66 copyFrom(Intent intent)67 public void copyFrom(Intent intent) { 68 mSizeBytes = intent.getLongExtra(EXTRA_SIZE_BYTES, -1); 69 } 70 copyTo(Intent intent)71 public void copyTo(Intent intent) { 72 intent.putExtra(EXTRA_SIZE_BYTES, mSizeBytes); 73 } 74 75 @Override doInBackground(Void... params)76 protected Long doInBackground(Void... params) { 77 if (mSizeBytes != -1) { 78 return mSizeBytes; 79 } 80 81 final VolumeInfo privateVol = mContext.getPackageManager().getPrimaryStorageCurrentVolume(); 82 final VolumeInfo emulatedVol = mStorage.findEmulatedForPrivate(privateVol); 83 84 if (emulatedVol == null) { 85 Log.w(TAG, "Failed to find current primary storage"); 86 return -1L; 87 } 88 89 final String path = emulatedVol.getPath().getAbsolutePath(); 90 Log.d(TAG, "Estimating for current path " + path); 91 92 final Intent intent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT); 93 mContext.bindServiceAsUser(intent, this, Context.BIND_AUTO_CREATE, UserHandle.OWNER); 94 95 try { 96 if (mConnected.await(15, TimeUnit.SECONDS)) { 97 return mService.calculateDirectorySize(path); 98 } 99 } catch (InterruptedException | RemoteException e) { 100 Log.w(TAG, "Failed to measure " + path); 101 } finally { 102 mContext.unbindService(this); 103 } 104 105 return -1L; 106 } 107 108 @Override onPostExecute(Long result)109 protected void onPostExecute(Long result) { 110 mSizeBytes = result; 111 mTimeMillis = (mSizeBytes * DateUtils.SECOND_IN_MILLIS) / SPEED_ESTIMATE_BPS; 112 mTimeMillis = Math.max(mTimeMillis, DateUtils.SECOND_IN_MILLIS); 113 114 final String size = Formatter.formatFileSize(mContext, mSizeBytes); 115 final String time = DateUtils.formatDuration(mTimeMillis).toString(); 116 onPostExecute(size, time); 117 } 118 onPostExecute(String size, String time)119 public abstract void onPostExecute(String size, String time); 120 121 @Override onServiceConnected(ComponentName name, IBinder service)122 public void onServiceConnected(ComponentName name, IBinder service) { 123 mService = IMediaContainerService.Stub.asInterface(service); 124 mConnected.countDown(); 125 } 126 127 @Override onServiceDisconnected(ComponentName name)128 public void onServiceDisconnected(ComponentName name) { 129 // Ignored; we leave service in place for the background thread to 130 // run into DeadObjectException 131 } 132 } 133