package com.sun.j2ee.blueprints.waf.controller.web;
import java.util.Collection;
import java.util.HashMap;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.ServletException;
import com.sun.j2ee.blueprints.waf.util.JNDINames;
import com.sun.j2ee.blueprints.util.tracer.Debug;
import com.sun.j2ee.blueprints.waf.controller.web.util.WebKeys;
import com.sun.j2ee.blueprints.waf.event.Event;
import com.sun.j2ee.blueprints.waf.event.EventException;
import com.sun.j2ee.blueprints.waf.event.EventResponse;
import com.sun.j2ee.blueprints.waf.controller.web.action.HTMLAction;
import com.sun.j2ee.blueprints.waf.controller.web.action.HTMLActionException;
import com.sun.j2ee.blueprints.waf.controller.web.ComponentManager;
public class RequestProcessor implements java.io.Serializable {
private HashMap urlMappings;
private HashMap eventMappings;
public RequestProcessor() {}
public void init(ServletContext context) {
urlMappings = (HashMap)context.getAttribute(WebKeys.URL_MAPPINGS);
eventMappings = (HashMap)context.getAttribute(WebKeys.EVENT_MAPPINGS);
}
private URLMapping getURLMapping(String urlPattern) {
if ((urlMappings != null) && urlMappings.containsKey(urlPattern)) {
return (URLMapping)urlMappings.get(urlPattern);
} else {
return null;
}
}
private EventMapping getEventMapping(Event eventClass) {
String eventClassName = eventClass.getClass().getName();
if ((eventMappings != null) && eventMappings.containsKey(eventClassName)) {
return (EventMapping)eventMappings.get(eventClassName);
} else {
return null;
}
}
public void processRequest(HttpServletRequest request) throws HTMLActionException, EventException, ServletException {
Event ev = null;
String fullURL = request.getRequestURI();
String selectedURL = null;
int lastPathSeparator = fullURL.lastIndexOf("/") + 1;
if (lastPathSeparator != -1) {
selectedURL = fullURL.substring(lastPathSeparator, fullURL.length());
}
URLMapping urlMapping = getURLMapping(selectedURL);
HTMLAction action = getAction(urlMapping);
if (action != null) {
action.setServletContext(request.getSession().getServletContext());
action.doStart(request);
ev = action.perform(request);
EventResponse eventResponse = null;
if (ev != null) {
EventMapping eventMapping = getEventMapping(ev);
if (eventMapping != null) {
ev.setEJBActionClassName(eventMapping.getEJBActionClassName());
}
ComponentManager sl = (ComponentManager)request.getSession().getAttribute(WebKeys.COMPONENT_MANAGER);
WebController wcc = sl.getWebController(request.getSession());
eventResponse = wcc.handleEvent(ev, request.getSession());
}
action.doEnd(request, eventResponse);
}
}
private HTMLAction getAction(URLMapping urlMapping) {
HTMLAction handler = null;
String actionClassString = null;
if (urlMapping != null) {
actionClassString = urlMapping.getWebAction();
if (urlMapping.isAction()) {
try {
handler = (HTMLAction)getClass().getClassLoader().loadClass(actionClassString).newInstance();
} catch (Exception ex) {
System.err.println("RequestProcessor caught loading action: " + ex);
}
}
}
return handler;
}
}