org.xins.server.Interceptor Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of xins-server Show documentation

The XINS server framework

There is a newer version: 3.0

package org.xins.server;

import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.xins.common.manageable.Manageable;

/**
 * Intercepter are similar in concept to Servlet filters except for the following points:
 * 
 *  More anchor points: before the calling convention, before the function request, 
 *      after the function request and after the calling convention.
 * 
 They are manageable, bootstrap properties, runtime properties, runtime changes.
 * 
 They could be added and removed at runtime
 * 
 * 
 * Example of uses: Statistics, transaction logging, load balancing and fail over.
 *
 * @author Anthony Goubard
 */
public class Interceptor extends Manageable {

   public boolean beforeCallingConvention(HttpServletRequest httpRequest) {
      return true;
   }

   public boolean beforeFunctionCall(HttpServletRequest httpRequest, FunctionRequest functionRequest) {
      return true;
   }

   public boolean afterFunctionCall(FunctionResult xinsResult, HttpServletResponse httpResponse, Map backpack) {
      return true;
   }

   public boolean afterCallingConvention(FunctionResult xinsResult, HttpServletResponse httpResponse, Map backpack) {
      return true;
   }
}