1/*
2 * Copyright (C) 2017 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
17package com.android.settings.applications;
18
19import android.annotation.NonNull;
20import android.content.Context;
21import android.content.pm.ApplicationInfo;
22import android.content.pm.PackageManager.NameNotFoundException;
23import android.os.UserHandle;
24import android.util.Log;
25
26import com.android.internal.util.Preconditions;
27import com.android.settings.utils.AsyncLoader;
28import com.android.settingslib.applications.StorageStatsSource;
29import com.android.settingslib.applications.StorageStatsSource.AppStorageStats;
30
31import java.io.IOException;
32
33/**
34 * Fetches the storage stats using the StorageStatsManager for a given package and user tuple.
35 */
36public class FetchPackageStorageAsyncLoader extends AsyncLoader<AppStorageStats> {
37    private static final String TAG = "FetchPackageStorage";
38    private final StorageStatsSource mSource;
39    private final ApplicationInfo mInfo;
40    private final UserHandle mUser;
41
42    public FetchPackageStorageAsyncLoader(Context context, @NonNull StorageStatsSource source,
43            @NonNull ApplicationInfo info, @NonNull UserHandle user) {
44        super(context);
45        mSource = Preconditions.checkNotNull(source);
46        mInfo = info;
47        mUser = user;
48    }
49
50    @Override
51    public AppStorageStats loadInBackground() {
52        AppStorageStats result = null;
53        try {
54            result = mSource.getStatsForPackage(mInfo.volumeUuid, mInfo.packageName, mUser);
55        } catch (NameNotFoundException | IOException e) {
56            Log.w(TAG, "Package may have been removed during query, failing gracefully", e);
57        }
58        return result;
59    }
60
61    @Override
62    protected void onDiscardResult(AppStorageStats result) {
63    }
64}
65