2ef20fb36d
This adds a deletion service to delete files in the Downloads folder. All of the files there are collected and offered to the user to delete. Bug: 28621781 Change-Id: I94431f9abc3a0afa2d07dbab763312c09e830aef
96 lines
3.1 KiB
Java
96 lines
3.1 KiB
Java
/*
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* Copyright (C) 2016 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.deletionhelper;
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import android.content.Context;
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import android.support.annotation.VisibleForTesting;
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import com.android.settings.utils.AsyncLoader;
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import java.io.File;
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import java.util.ArrayList;
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/**
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* FetchDownloadsLoader is an asynchronous task which returns files in the Downloads
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* directory which have not been modified in longer than 90 days.
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*/
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public class FetchDownloadsLoader extends
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AsyncLoader<FetchDownloadsLoader.DownloadsResult> {
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private File mDirectory;
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/**
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* Sets up a FetchDownloadsLoader in any directory.
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* @param directory The directory to look into.
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*/
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public FetchDownloadsLoader(Context context, File directory) {
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super(context);
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mDirectory = directory;
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}
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@Override
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protected void onDiscardResult(DownloadsResult result) {}
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@Override
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public DownloadsResult loadInBackground() {
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return collectFiles(mDirectory);
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}
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@VisibleForTesting
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static DownloadsResult collectFiles(File dir) {
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return collectFiles(dir, new DownloadsResult());
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}
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private static DownloadsResult collectFiles(File dir, DownloadsResult result) {
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File downloadFiles[] = dir.listFiles();
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if (downloadFiles == null) {
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}
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if (downloadFiles != null && downloadFiles.length > 0) {
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for (File currentFile : downloadFiles) {
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if (currentFile.isDirectory()) {
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collectFiles(currentFile, result);
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} else {
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if (currentFile.lastModified() < result.youngestLastModified) {
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result.youngestLastModified = currentFile.lastModified();
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}
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result.files.add(currentFile);
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result.totalSize += currentFile.length();
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}
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}
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}
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return result;
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}
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/**
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* The DownloadsResult is the result of a {@link FetchDownloadsLoader} with the files
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* and the amount of space they use.
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*/
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public static class DownloadsResult {
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public long totalSize;
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public long youngestLastModified;
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public ArrayList<File> files;
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public DownloadsResult() {
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this(0, Long.MAX_VALUE, new ArrayList<File>());
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}
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public DownloadsResult(long totalSize, long youngestLastModified, ArrayList<File> files) {
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this.totalSize = totalSize;
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this.youngestLastModified = youngestLastModified;
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this.files = files;
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}
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}
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} |