| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Copyright 1999-2004 The Apache Software Foundation. |
| * |
| * 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.sun.org.apache.xml.internal.security.utils; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| /** |
| * A collection of different, general-purpose methods for JAVA-specific things |
| * @author Christian Geuer-Pollmann |
| */ |
| public class JavaUtils { |
| |
| /** {@link java.util.logging} logging facility */ |
| static java.util.logging.Logger log = |
| java.util.logging.Logger.getLogger(JavaUtils.class.getName()); |
| |
| private JavaUtils() { |
| // we don't allow instantiation |
| } |
| |
| /** |
| * Method getBytesFromFile |
| * |
| * @param fileName |
| * @return the bytes readed from the file |
| * |
| * @throws FileNotFoundException |
| * @throws IOException |
| */ |
| public static byte[] getBytesFromFile(String fileName) |
| throws FileNotFoundException, IOException { |
| |
| byte refBytes[] = null; |
| |
| FileInputStream fisRef = new FileInputStream(fileName); |
| try { |
| UnsyncByteArrayOutputStream baos = new UnsyncByteArrayOutputStream(); |
| byte buf[] = new byte[1024]; |
| int len; |
| |
| while ((len = fisRef.read(buf)) > 0) { |
| baos.write(buf, 0, len); |
| } |
| |
| refBytes = baos.toByteArray(); |
| } finally { |
| fisRef.close(); |
| } |
| |
| return refBytes; |
| } |
| |
| /** |
| * Method writeBytesToFilename |
| * |
| * @param filename |
| * @param bytes |
| */ |
| public static void writeBytesToFilename(String filename, byte[] bytes) { |
| |
| FileOutputStream fos = null; |
| try { |
| if (filename != null && bytes != null) { |
| File f = new File(filename); |
| |
| fos = new FileOutputStream(f); |
| |
| fos.write(bytes); |
| fos.close(); |
| } else { |
| log.log(java.util.logging.Level.FINE, "writeBytesToFilename got null byte[] pointed"); |
| } |
| } catch (IOException ex) { |
| if (fos != null) { |
| try { |
| fos.close(); |
| } catch (IOException ioe) {} |
| } |
| } |
| } |
| |
| /** |
| * This method reads all bytes from the given InputStream till EOF and |
| * returns them as a byte array. |
| * |
| * @param inputStream |
| * @return the bytes readed from the stream |
| * |
| * @throws FileNotFoundException |
| * @throws IOException |
| */ |
| public static byte[] getBytesFromStream(InputStream inputStream) |
| throws IOException { |
| |
| byte refBytes[] = null; |
| |
| UnsyncByteArrayOutputStream baos = new UnsyncByteArrayOutputStream(); |
| byte buf[] = new byte[1024]; |
| int len; |
| |
| while ((len = inputStream.read(buf)) > 0) { |
| baos.write(buf, 0, len); |
| } |
| |
| refBytes = baos.toByteArray(); |
| return refBytes; |
| } |
| } |