| /* |
| * Copyright (C) 2011 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 android.provider.cts; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| /** Bits and pieces copied from hidden API of android.os.FileUtils. */ |
| public class FileUtils { |
| |
| /** |
| * Copy data from a source stream to destFile. |
| * Return true if succeed, return false if failed. |
| */ |
| public static boolean copyToFile(InputStream inputStream, File destFile) { |
| try { |
| if (destFile.exists()) { |
| destFile.delete(); |
| } |
| FileOutputStream out = new FileOutputStream(destFile); |
| try { |
| byte[] buffer = new byte[4096]; |
| int bytesRead; |
| while ((bytesRead = inputStream.read(buffer)) >= 0) { |
| out.write(buffer, 0, bytesRead); |
| } |
| } finally { |
| out.flush(); |
| try { |
| out.getFD().sync(); |
| } catch (IOException e) { |
| } |
| out.close(); |
| } |
| return true; |
| } catch (IOException e) { |
| return false; |
| } |
| } |
| |
| public static void createFile(File file, int numBytes) throws IOException { |
| File parentFile = file.getParentFile(); |
| if (parentFile != null) { |
| parentFile.mkdirs(); |
| } |
| byte[] buffer = new byte[numBytes]; |
| FileOutputStream output = new FileOutputStream(file); |
| try { |
| output.write(buffer); |
| } finally { |
| output.close(); |
| } |
| } |
| |
| public static byte[] readInputStreamFully(InputStream is) { |
| ByteArrayOutputStream os = new ByteArrayOutputStream(); |
| byte[] buffer = new byte[32768]; |
| int count; |
| try { |
| while ((count = is.read(buffer)) != -1) { |
| os.write(buffer, 0, count); |
| } |
| is.close(); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| return os.toByteArray(); |
| } |
| } |