| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.bumptech.glide.disklrucache; |
| |
| import java.io.Closeable; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.Reader; |
| import java.io.StringWriter; |
| import java.nio.charset.Charset; |
| |
| /** Junk drawer of utility methods. */ |
| final class Util { |
| static final Charset US_ASCII = Charset.forName("US-ASCII"); |
| static final Charset UTF_8 = Charset.forName("UTF-8"); |
| |
| private Util() { |
| } |
| |
| static String readFully(Reader reader) throws IOException { |
| try { |
| StringWriter writer = new StringWriter(); |
| char[] buffer = new char[1024]; |
| int count; |
| while ((count = reader.read(buffer)) != -1) { |
| writer.write(buffer, 0, count); |
| } |
| return writer.toString(); |
| } finally { |
| reader.close(); |
| } |
| } |
| |
| /** |
| * Deletes the contents of {@code dir}. Throws an IOException if any file |
| * could not be deleted, or if {@code dir} is not a readable directory. |
| */ |
| static void deleteContents(File dir) throws IOException { |
| File[] files = dir.listFiles(); |
| if (files == null) { |
| throw new IOException("not a readable directory: " + dir); |
| } |
| for (File file : files) { |
| if (file.isDirectory()) { |
| deleteContents(file); |
| } |
| if (!file.delete()) { |
| throw new IOException("failed to delete file: " + file); |
| } |
| } |
| } |
| |
| static void closeQuietly(/*Auto*/Closeable closeable) { |
| if (closeable != null) { |
| try { |
| closeable.close(); |
| } catch (RuntimeException rethrown) { |
| throw rethrown; |
| } catch (Exception ignored) { |
| } |
| } |
| } |
| } |