203f0fe89d
Remove some unused import lines within source code based on https://source.android.com/setup/contribute/code-style Bug: 182867979 Test: build pass Change-Id: I76dbcfa9e5b435b2838401dfee15b12f472d07d0
114 lines
3.8 KiB
Java
114 lines
3.8 KiB
Java
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.deviceinfo;
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import static com.android.settings.deviceinfo.StorageSettings.TAG;
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import android.app.usage.ExternalStorageStats;
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import android.app.usage.StorageStatsManager;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.UserInfo;
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import android.net.TrafficStats;
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import android.os.AsyncTask;
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import android.os.UserHandle;
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import android.os.UserManager;
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import android.os.storage.StorageManager;
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import android.os.storage.VolumeInfo;
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import android.text.format.DateUtils;
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import android.text.format.Formatter;
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import android.util.Log;
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import java.io.IOException;
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import java.util.UUID;
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public abstract class MigrateEstimateTask extends AsyncTask<Void, Void, Long> {
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private static final String EXTRA_SIZE_BYTES = "size_bytes";
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/**
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* Assume roughly a Class 10 card.
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*/
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private static final long SPEED_ESTIMATE_BPS = 10 * TrafficStats.MB_IN_BYTES;
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private final Context mContext;
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private long mSizeBytes = -1;
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public MigrateEstimateTask(Context context) {
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mContext = context;
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}
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public void copyFrom(Intent intent) {
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mSizeBytes = intent.getLongExtra(EXTRA_SIZE_BYTES, -1);
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}
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public void copyTo(Intent intent) {
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intent.putExtra(EXTRA_SIZE_BYTES, mSizeBytes);
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}
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@Override
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protected Long doInBackground(Void... params) {
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if (mSizeBytes != -1) {
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return mSizeBytes;
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}
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final UserManager user = mContext.getSystemService(UserManager.class);
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final StorageManager storage = mContext.getSystemService(StorageManager.class);
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final StorageStatsManager stats = mContext.getSystemService(StorageStatsManager.class);
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final VolumeInfo privateVol = mContext.getPackageManager().getPrimaryStorageCurrentVolume();
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final VolumeInfo emulatedVol = storage.findEmulatedForPrivate(privateVol);
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if (emulatedVol == null) {
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Log.w(TAG, "Failed to find current primary storage");
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return -1L;
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}
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try {
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final UUID emulatedUuid = storage.getUuidForPath(emulatedVol.getPath());
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Log.d(TAG, "Measuring size of " + emulatedUuid);
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long size = 0;
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for (UserInfo u : user.getUsers()) {
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final ExternalStorageStats s = stats.queryExternalStatsForUser(emulatedUuid,
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UserHandle.of(u.id));
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size += s.getTotalBytes();
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if (u.id == UserHandle.USER_SYSTEM) {
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size += s.getObbBytes();
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}
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}
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return size;
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} catch (IOException e) {
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Log.w(TAG, "Failed to measure", e);
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return -1L;
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}
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}
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@Override
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protected void onPostExecute(Long result) {
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mSizeBytes = result;
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long timeMillis = (mSizeBytes * DateUtils.SECOND_IN_MILLIS) / SPEED_ESTIMATE_BPS;
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timeMillis = Math.max(timeMillis, DateUtils.SECOND_IN_MILLIS);
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final String size = Formatter.formatFileSize(mContext, mSizeBytes);
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final String time = DateUtils.formatDuration(timeMillis).toString();
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onPostExecute(size, time);
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}
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public abstract void onPostExecute(String size, String time);
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}
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