J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * reserved comment block |
| 3 | * DO NOT REMOVE OR ALTER! |
| 4 | */ |
| 5 | /* |
| 6 | * Copyright 1999-2004 The Apache Software Foundation. |
| 7 | * |
| 8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 9 | * you may not use this file except in compliance with the License. |
| 10 | * You may obtain a copy of the License at |
| 11 | * |
| 12 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 13 | * |
| 14 | * Unless required by applicable law or agreed to in writing, software |
| 15 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 17 | * See the License for the specific language governing permissions and |
| 18 | * limitations under the License. |
| 19 | * |
| 20 | */ |
| 21 | package com.sun.org.apache.xml.internal.security.utils; |
| 22 | |
| 23 | |
| 24 | |
| 25 | import java.io.File; |
| 26 | import java.io.FileInputStream; |
| 27 | import java.io.FileNotFoundException; |
| 28 | import java.io.FileOutputStream; |
| 29 | import java.io.IOException; |
| 30 | import java.io.InputStream; |
| 31 | |
| 32 | |
| 33 | /** |
| 34 | * A collection of different, general-purpose methods for JAVA-specific things |
| 35 | * @author Christian Geuer-Pollmann |
| 36 | * |
| 37 | */ |
| 38 | public class JavaUtils { |
| 39 | |
| 40 | /** {@link java.util.logging} logging facility */ |
| 41 | static java.util.logging.Logger log = |
| 42 | java.util.logging.Logger.getLogger(JavaUtils.class.getName()); |
| 43 | |
| 44 | private JavaUtils() { |
| 45 | // we don't allow instantiation |
| 46 | } |
| 47 | /** |
| 48 | * Method getBytesFromFile |
| 49 | * |
| 50 | * @param fileName |
| 51 | * @return the bytes readed from the file |
| 52 | * |
| 53 | * @throws FileNotFoundException |
| 54 | * @throws IOException |
| 55 | */ |
| 56 | public static byte[] getBytesFromFile(String fileName) |
| 57 | throws FileNotFoundException, IOException { |
| 58 | |
| 59 | byte refBytes[] = null; |
| 60 | |
| 61 | { |
| 62 | FileInputStream fisRef = new FileInputStream(fileName); |
| 63 | UnsyncByteArrayOutputStream baos = new UnsyncByteArrayOutputStream(); |
| 64 | byte buf[] = new byte[1024]; |
| 65 | int len; |
| 66 | |
| 67 | while ((len = fisRef.read(buf)) > 0) { |
| 68 | baos.write(buf, 0, len); |
| 69 | } |
| 70 | |
| 71 | refBytes = baos.toByteArray(); |
| 72 | } |
| 73 | |
| 74 | return refBytes; |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Method writeBytesToFilename |
| 79 | * |
| 80 | * @param filename |
| 81 | * @param bytes |
| 82 | */ |
| 83 | public static void writeBytesToFilename(String filename, byte[] bytes) { |
| 84 | |
| 85 | try { |
| 86 | if (filename != null && bytes != null) { |
| 87 | File f = new File(filename); |
| 88 | |
| 89 | FileOutputStream fos = new FileOutputStream(f); |
| 90 | |
| 91 | fos.write(bytes); |
| 92 | fos.close(); |
| 93 | } else { |
| 94 | if (log.isLoggable(java.util.logging.Level.FINE)) log.log(java.util.logging.Level.FINE, "writeBytesToFilename got null byte[] pointed"); |
| 95 | } |
| 96 | } catch (Exception ex) {} |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * This method reads all bytes from the given InputStream till EOF and returns |
| 101 | * them as a byte array. |
| 102 | * |
| 103 | * @param inputStream |
| 104 | * @return the bytes readed from the stream |
| 105 | * |
| 106 | * @throws FileNotFoundException |
| 107 | * @throws IOException |
| 108 | */ |
| 109 | public static byte[] getBytesFromStream(InputStream inputStream) throws IOException { |
| 110 | |
| 111 | byte refBytes[] = null; |
| 112 | |
| 113 | { |
| 114 | UnsyncByteArrayOutputStream baos = new UnsyncByteArrayOutputStream(); |
| 115 | byte buf[] = new byte[1024]; |
| 116 | int len; |
| 117 | |
| 118 | while ((len = inputStream.read(buf)) > 0) { |
| 119 | baos.write(buf, 0, len); |
| 120 | } |
| 121 | |
| 122 | refBytes = baos.toByteArray(); |
| 123 | } |
| 124 | |
| 125 | return refBytes; |
| 126 | } |
| 127 | } |