/**
* Copyright (c) 2012, Andy Janata
* 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.
*
* 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 AND
* FITNESS FOR A PARTICULAR PURPOSE 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 net.socialgamer.cah;
import javax.servlet.http.HttpServletRequest;
import net.socialgamer.cah.Constants.AjaxRequest;
/**
* Wrap around an {@code HttpServletRequest}, to allow parameters to be retrieved by enum value.
*
* @author Andy Janata (ajanata@socialgamer.net)
*/
public class RequestWrapper {
private final HttpServletRequest request;
/**
* Create a new RequestWrapper.
*
* @param request
* An {@code HttpServletRequest} to wrap around.
*/
public RequestWrapper(final HttpServletRequest request) {
this.request = request;
}
/**
* Returns the value of a request parameter as a String, or null if the parameter does not exist.
*
* @param parameter
* Parameter to get.
* @return Value of parameter, or null if parameter does not exist.
*/
public String getParameter(final AjaxRequest parameter) {
return request.getParameter(parameter.toString());
}
/**
* If there is an {@code X-Forwarded-For} header, the <strong>first</strong> entry in that list
* is returned instead.
* @see HttpServletRequest#getRemoteAddr()
*/
public String getRemoteAddr() {
String addr = request.getHeader("X-Forwarded-For");
if (null != addr) {
addr = addr.split(",")[0].trim();
} else {
addr = request.getRemoteAddr();
}
return addr;
}
}