/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.console.plugins.helpers.servlet;
/**
* Helper class
*
* @author <a href="mailto:sacha.labourey@cogito-info.ch">Sacha Labourey</a>
* @author <a href="mailto:dimitris@jboss.org">Dimitris Andredis</a>
* @version $Revision: 81010 $
*/
public class ServletHelper
{
/**
* Encode '<', '>', '"', '&' characters to their html equivalent
*/
public static String filter(String input)
{
if (input == null)
{
return null;
}
else
{
StringBuffer filtered = new StringBuffer(input.length() * 2);
char c;
for (int i = 0; i < input.length(); i++)
{
c = input.charAt(i);
switch (c)
{
case '<':
filtered.append("<");
break;
case '>':
filtered.append(">");
break;
case '"':
filtered.append(""");
break;
case '&':
filtered.append("&");
break;
default:
filtered.append(c);
break;
}
}
return filtered.toString();
}
}
}