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package org.apache.catalina.valves;
import org.apache.catalina.Request;
import org.apache.catalina.Response;
import javax.servlet.ServletException;
import java.io.IOException;
/**
* Concrete implementation of <code>RequestFilterValve</code> that filters
* based on the remote client's host name.
*
* @author Craig R. McClanahan
* @version $Revision: 1.3 $ $Date: 2005/12/08 01:28:24 $
*/
public final class RemoteHostValve
extends RequestFilterValve {
// ----------------------------------------------------- Instance Variables
/**
* The descriptive information related to this implementation.
*/
private static final String info =
"org.apache.catalina.valves.RemoteHostValve/1.0";
// ------------------------------------------------------------- Properties
/**
* Return descriptive information about this Valve implementation.
*/
public String getInfo() {
return (info);
}
// --------------------------------------------------------- Public Methods
/**
* Extract the desired request property, and pass it (along with the
* specified request and response objects) to the protected
* <code>process()</code> method to perform the actual filtering.
* This method must be implemented by a concrete subclass.
*
* @param request The servlet request to be processed
* @param response The servlet response to be created
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet error occurs
*/
public int invoke(Request request, Response response)
throws IOException, ServletException {
return process(request.getRequest().getRemoteHost(),
request, response);
}
}