1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package jdk.test.failurehandler; 25 26 import java.io.IOException; 27 import java.io.InputStream; 28 import java.io.OutputStream; 29 import java.io.Reader; 30 import java.io.Writer; 31 import java.util.Properties; 32 33 public final class Utils { 34 private static final int BUFFER_LENGTH = 1024; 35 36 public static String prependPrefix(String prefix, String name) { 37 return (prefix == null || prefix.isEmpty()) 38 ? name 39 : (name == null || name.isEmpty()) 40 ? prefix 41 : String.format("%s.%s", prefix, name); 42 } 43 44 public static void copyStream(InputStream in, OutputStream out) 45 throws IOException { 46 int n; 47 byte[] buffer = new byte[BUFFER_LENGTH]; 48 while ((n = in.read(buffer)) != -1) { 49 out.write(buffer, 0, n); 50 } 51 out.flush(); 52 } 53 54 public static void copyStream(Reader in, Writer out) 55 throws IOException { 56 int n; 57 char[] buffer = new char[BUFFER_LENGTH]; 58 while ((n = in.read(buffer)) != -1) { 59 out.write(buffer, 0, n); 60 } 61 out.flush(); 62 } 63 64 public static Properties getProperties(String name) { 65 Properties properties = new Properties(); 66 String resourceName = String.format( 67 "/%s.%s", name.toLowerCase(), "properties"); 68 InputStream stream = Utils.class.getResourceAsStream(resourceName); 69 if (stream == null) { 70 throw new IllegalStateException(String.format( 71 "resource '%s' doesn't exist%n", resourceName)); 72 } 73 try { 74 try { 75 properties.load(stream); 76 } finally { 77 stream.close(); 78 } 79 } catch (IOException e) { 80 throw new IllegalStateException(String.format( 81 "can't read resource '%s' : %s%n", 82 resourceName, e.getMessage()), e); 83 } 84 return properties; 85 } 86 87 private Utils() { } 88 }