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/*
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* SONEWS News Server
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* see AUTHORS for the list of contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sonews.util.io;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.net.URL;
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import java.nio.charset.Charset;
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/**
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* Provides method for loading of resources.
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* @author Christian Lins
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* @since sonews/0.5.0
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*/
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public final class Resource
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{
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/**
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* Loads a resource and returns it as URL reference.
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* The Resource's classloader is used to load the resource, not
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* the System's ClassLoader so it may be safe to use this method
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* in a sandboxed environment.
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* @return
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*/
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public static URL getAsURL(final String name)
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{
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if(name == null)
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{
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return null;
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}
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return Resource.class.getClassLoader().getResource(name);
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}
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/**
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* Loads a resource and returns an InputStream to it.
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* @param name
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* @return
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*/
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public static InputStream getAsStream(String name)
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{
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try
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{
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URL url = getAsURL(name);
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if(url == null)
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{
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return null;
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}
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else
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{
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return url.openStream();
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}
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}
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catch(IOException e)
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{
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e.printStackTrace();
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return null;
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}
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}
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/**
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* Loads a plain text resource.
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* @param withNewline If false all newlines are removed from the
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* return String
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*/
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public static String getAsString(String name, boolean withNewline)
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{
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if(name == null)
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return null;
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BufferedReader in = null;
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try
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{
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InputStream ins = getAsStream(name);
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if(ins == null)
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return null;
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in = new BufferedReader(
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new InputStreamReader(ins, Charset.forName("UTF-8")));
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StringBuffer buf = new StringBuffer();
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for(;;)
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{
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String line = in.readLine();
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if(line == null)
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break;
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buf.append(line);
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if(withNewline)
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buf.append('\n');
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}
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return buf.toString();
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}
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catch(Exception e)
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{
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e.printStackTrace();
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return null;
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}
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finally
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{
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try
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{
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if(in != null)
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in.close();
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}
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catch(IOException ex)
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{
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ex.printStackTrace();
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}
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}
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}
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}
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