chris@0: /*
chris@0:  *   StarOffice News Server
chris@0:  *   see AUTHORS for the list of contributors
chris@0:  *
chris@0:  *   This program is free software: you can redistribute it and/or modify
chris@0:  *   it under the terms of the GNU General Public License as published by
chris@0:  *   the Free Software Foundation, either version 3 of the License, or
chris@0:  *   (at your option) any later version.
chris@0:  *
chris@0:  *   This program is distributed in the hope that it will be useful,
chris@0:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
chris@0:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
chris@0:  *   GNU General Public License for more details.
chris@0:  *
chris@0:  *   You should have received a copy of the GNU General Public License
chris@0:  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
chris@0:  */
chris@0: 
chris@0: package com.so.news.io;
chris@0: 
chris@0: import java.io.BufferedReader;
chris@0: import java.io.File;
chris@0: import java.io.FileInputStream;
chris@0: import java.io.IOException;
chris@0: import java.io.InputStream;
chris@0: import java.io.InputStreamReader;
chris@0: import java.net.URL;
chris@0: import java.nio.charset.Charset;
chris@0: 
chris@0: /**
chris@0:  * Provides method for loading of resources.
chris@0:  * @author Christian Lins
chris@0:  */
chris@0: public class Resource
chris@0: {
chris@0:   /**
chris@0:    * Loads a file as array of byte. As the file is completely loaded into
chris@0:    * memory this method should only be used with small files.
chris@0:    * @param file
chris@0:    * @return
chris@0:    */
chris@0:   public static byte[] getBytes(File file)
chris@0:   {
chris@0:     try
chris@0:     {
chris@0:       FileInputStream in = new FileInputStream(file);
chris@0:       byte[] buffer = new byte[(int)file.length()];
chris@0:       
chris@0:       in.read(buffer);
chris@0:       
chris@0:       return buffer;
chris@0:     }
chris@0:     catch(IOException ex)
chris@0:     {
chris@0:       System.err.println(ex.getLocalizedMessage());
chris@0:       return null;
chris@0:     }
chris@0:   }
chris@0:   
chris@0:   /**
chris@0:    * Loads a resource and returns it as URL reference.
chris@0:    * The Resource's classloader is used to load the resource, not
chris@0:    * the System's ClassLoader so it may be safe to use this method
chris@0:    * in a sandboxed environment.
chris@0:    * @return
chris@0:    */
chris@0:   public static URL getAsURL(String name)
chris@0:   {
chris@0:     return Resource.class.getClassLoader().getResource(name);
chris@0:   }
chris@0:   
chris@0:   /**
chris@0:    * Loads a resource and returns an InputStream to it.
chris@0:    * @param name
chris@0:    * @return
chris@0:    */
chris@0:   public static InputStream getAsStream(String name)
chris@0:   {
chris@0:     try
chris@0:     {
chris@0:       URL url = getAsURL(name);
chris@0:       return url.openStream();
chris@0:     }
chris@0:     catch(IOException e)
chris@0:     {
chris@0:       e.printStackTrace();
chris@0:       return null;
chris@0:     }
chris@0:   }
chris@0: 
chris@0:   /**
chris@0:    * Loads a plain text resource.
chris@0:    * @param withNewline If false all newlines are removed from the 
chris@0:    * return String
chris@0:    */
chris@0:   public static String getAsString(String name, boolean withNewline)
chris@0:   {
chris@0:     try
chris@0:     {
chris@0:       BufferedReader in  = new BufferedReader(
chris@0:           new InputStreamReader(getAsStream(name), Charset.forName("UTF-8")));
chris@0:       StringBuffer   buf = new StringBuffer();
chris@0: 
chris@0:       for(;;)
chris@0:       {
chris@0:         String line = in.readLine();
chris@0:         if(line == null)
chris@0:           break;
chris@0: 
chris@0:         buf.append(line);
chris@0:         if(withNewline)
chris@0:           buf.append('\n');
chris@0:       }
chris@0: 
chris@0:       return buf.toString();
chris@0:     }
chris@0:     catch(Exception e)
chris@0:     {
chris@0:       e.printStackTrace();
chris@0:       return null;
chris@0:     }
chris@0:   }
chris@0: }