1 /* 2 * Copyright (C) 2016 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 17 package com.android.compatibility.common.util; 18 19 import java.io.IOException; 20 import java.io.InputStream; 21 import java.io.OutputStream; 22 23 24 public class StreamUtil { 25 26 // 16K buffer size 27 private static final int BUFFER_SIZE = 16 * 1024; 28 /** 29 * Copies contents of origStream to destStream. 30 * <p/> 31 * Recommended to provide a buffered stream for input and output 32 * 33 * @param inStream the {@link InputStream} 34 * @param outStream the {@link OutputStream} 35 * @throws IOException 36 */ copyStreams(InputStream inStream, OutputStream outStream)37 public static void copyStreams(InputStream inStream, OutputStream outStream) 38 throws IOException { 39 byte[] buf = new byte[BUFFER_SIZE]; 40 int size = -1; 41 while ((size = inStream.read(buf)) != -1) { 42 outStream.write(buf, 0, size); 43 } 44 } 45 46 } 47