001 /* 002 * Copyright (C) 2012 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 public class IO { 027 028 public static byte[] readAsBytes(InputStream in) throws IOException { 029 return read(in).toByteArray(); 030 } 031 032 public static String readAsUTF8(InputStream in) { 033 try { 034 ByteArrayOutputStream baos = read(in); 035 return baos.toString("UTF-8"); 036 } 037 catch (IOException e) { 038 e.printStackTrace(); 039 return null; 040 } 041 } 042 043 public static void copy(InputStream in, OutputStream out) throws IOException { 044 if (in == null) { 045 throw new NullPointerException(); 046 } 047 try { 048 byte[] buffer = new byte[256]; 049 for (int l = in.read(buffer); l != -1; l = in.read(buffer)) { 050 out.write(buffer, 0, l); 051 } 052 } 053 finally { 054 Safe.close(in); 055 } 056 } 057 058 private static ByteArrayOutputStream read(InputStream in) throws IOException { 059 if (in == null) { 060 throw new NullPointerException(); 061 } 062 ByteArrayOutputStream baos = new ByteArrayOutputStream(); 063 copy(in, baos); 064 return baos; 065 } 066 }