001 /* 002 * Copyright (C) 2003-2009 eXo Platform SAS. 003 * 004 * This is free software; you can redistribute it and/or modify it 005 * under the terms of the GNU Lesser General Public License as 006 * published by the Free Software Foundation; either version 2.1 of 007 * the License, or (at your option) any later version. 008 * 009 * This software is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * You should have received a copy of the GNU Lesser General Public 015 * License along with this software; if not, write to the Free 016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 018 */ 019 package org.crsh.util; 020 021 import java.io.ByteArrayOutputStream; 022 import java.io.IOException; 023 import java.io.InputStream; 024 import java.io.OutputStream; 025 026 /** 027 * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> 028 * @version $Revision$ 029 */ 030 public class IO { 031 032 public static byte[] readAsBytes(InputStream in) throws IOException { 033 return read(in).toByteArray(); 034 } 035 036 public static String readAsUTF8(InputStream in) { 037 try { 038 ByteArrayOutputStream baos = read(in); 039 return baos.toString("UTF-8"); 040 } 041 catch (IOException e) { 042 e.printStackTrace(); 043 return null; 044 } 045 } 046 047 public static void copy(InputStream in, OutputStream out) throws IOException { 048 if (in == null) { 049 throw new NullPointerException(); 050 } 051 try { 052 byte[] buffer = new byte[256]; 053 for (int l = in.read(buffer); l != -1; l = in.read(buffer)) { 054 out.write(buffer, 0, l); 055 } 056 } 057 finally { 058 Safe.close(in); 059 } 060 } 061 062 private static ByteArrayOutputStream read(InputStream in) throws IOException { 063 if (in == null) { 064 throw new NullPointerException(); 065 } 066 ByteArrayOutputStream baos = new ByteArrayOutputStream(); 067 copy(in, baos); 068 return baos; 069 } 070 }