Copyright (c) 2013, Coverity, Inc. 
  All rights reserved.
  Redistribution and use in source and binary forms, with or without modification, 
  are permitted provided that the following conditions are met:
  - Redistributions of source code must retain the above copyright notice, this 
  list of conditions and the following disclaimer.
  - Redistributions in binary form must reproduce the above copyright notice, this
  list of conditions and the following disclaimer in the documentation and/or other
  materials provided with the distribution.
  - Neither the name of Coverity, Inc. nor the names of its contributors may be used
  to endorse or promote products derived from this software without specific prior 
  written permission from Coverity, Inc.
  
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND INFRINGEMENT ARE DISCLAIMED.
  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR  CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
  WHETHER IN CONTRACT,  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
  OF SUCH DAMAGE.
/**
 *   Copyright (c) 2013, Coverity, Inc. 
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or without modification, 
 *   are permitted provided that the following conditions are met:
 *   - Redistributions of source code must retain the above copyright notice, this 
 *   list of conditions and the following disclaimer.
 *   - Redistributions in binary form must reproduce the above copyright notice, this
 *   list of conditions and the following disclaimer in the documentation and/or other
 *   materials provided with the distribution.
 *   - Neither the name of Coverity, Inc. nor the names of its contributors may be used
 *   to endorse or promote products derived from this software without specific prior 
 *   written permission from Coverity, Inc.
 *   
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
 *   EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND INFRINGEMENT ARE DISCLAIMED.
 *   IN NO EVENT SHALL THE COPYRIGHT HOLDER OR  CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
 *   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 *   WHETHER IN CONTRACT,  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 *   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
 *   OF SUCH DAMAGE.
 */
package com.coverity.security;

import com.coverity.security.Filter;

FilterEL is a wrapper class the provides alternative names for the filtering
methods in com.coverity.security.Filter. These alternative names are useful
primarily as EL functions in JSP files.

To use these functions in EL, use mvn package and then drop
coverity-escapers-X.X.jar into WEB-INF/lib. Then you can use the
following incantation to incorporate the tag library into EL to invoke these
functions:
<%@ taglib uri="http://coverity.com/security" prefix="cov" %>
<!-- Example of usage within a JSP --> 
<script>
var userNum = ${cov:asNumber(param.index)};
</script>

Author:
Alex Kouzemtchenko, Romain Gaucher/**
 * FilterEL is a wrapper class the provides alternative names for the filtering
 * methods in com.coverity.security.Filter. These alternative names are useful
 * primarily as EL functions in JSP files.
 * <p>
 * To use these functions in EL, use mvn package and then drop
 * <code>coverity-escapers-X.X.jar</code> into <code>WEB-INF/lib</code>. Then you can use the
 * following incantation to incorporate the tag library into EL to invoke these
 * functions:
 * <pre>
 * &lt;%@ taglib uri="http://coverity.com/security" prefix="cov" %&gt;
 * 
 * &lt;!-- Example of usage within a JSP --&gt; 
 * &lt;script>
 * var userNum = ${cov:asNumber(param.index)};
 * &lt;/script>
 * </pre>
 * @author Alex Kouzemtchenko
 * @author Romain Gaucher
 */
public class FilterEL {

    public static String asNumber(String input) {
        return Filter.asNumber(input);
    }
    
    public static String asNumberDefault(String input, String defaultNumber) {
        return Filter.asNumber(input, defaultNumber);
    }

    public static String asCssColor(String input) {
        return Filter.asCssColor(input);
    }
    
    public static String asCssColorDefault(String input, String defaultColor) {
        return Filter.asCssColor(input, defaultColor);
    }
    
    public static String asURL(String input) {
        return Filter.asURL(input);
    }
    
    public static String asFlexibleURL(String input) {
        return Filter.asFlexibleURL(input);
    }
}