1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portlet;
21  
22  import com.liferay.portal.kernel.language.LanguageUtil;
23  import com.liferay.portal.kernel.log.Log;
24  import com.liferay.portal.kernel.log.LogFactoryUtil;
25  import com.liferay.portal.kernel.portlet.LiferayPortletRequest;
26  import com.liferay.portal.kernel.portlet.LiferayPortletResponse;
27  import com.liferay.portal.kernel.portlet.PortletFilterUtil;
28  import com.liferay.portal.kernel.servlet.PortletServlet;
29  import com.liferay.portal.kernel.servlet.StringServletResponse;
30  import com.liferay.portal.kernel.util.ClassUtil;
31  import com.liferay.portal.kernel.util.GetterUtil;
32  import com.liferay.portal.kernel.util.JavaConstants;
33  import com.liferay.portal.kernel.util.StringPool;
34  import com.liferay.portal.kernel.util.Time;
35  import com.liferay.portal.model.Layout;
36  import com.liferay.portal.tools.deploy.PortletDeployer;
37  import com.liferay.portal.util.WebKeys;
38  
39  import com.sun.portal.portletcontainer.appengine.filter.FilterChainImpl;
40  
41  import java.io.IOException;
42  
43  import java.util.ArrayList;
44  import java.util.HashMap;
45  import java.util.List;
46  import java.util.Map;
47  import java.util.Set;
48  
49  import javax.portlet.ActionRequest;
50  import javax.portlet.ActionResponse;
51  import javax.portlet.EventRequest;
52  import javax.portlet.EventResponse;
53  import javax.portlet.Portlet;
54  import javax.portlet.PortletConfig;
55  import javax.portlet.PortletContext;
56  import javax.portlet.PortletException;
57  import javax.portlet.PortletRequest;
58  import javax.portlet.PortletSession;
59  import javax.portlet.RenderRequest;
60  import javax.portlet.RenderResponse;
61  import javax.portlet.ResourceRequest;
62  import javax.portlet.ResourceResponse;
63  import javax.portlet.filter.ActionFilter;
64  import javax.portlet.filter.EventFilter;
65  import javax.portlet.filter.FilterChain;
66  import javax.portlet.filter.PortletFilter;
67  import javax.portlet.filter.RenderFilter;
68  import javax.portlet.filter.ResourceFilter;
69  
70  import javax.servlet.RequestDispatcher;
71  import javax.servlet.ServletException;
72  import javax.servlet.http.HttpServletRequest;
73  import javax.servlet.http.HttpServletResponse;
74  import javax.servlet.http.HttpSession;
75  
76  import org.apache.commons.lang.time.StopWatch;
77  
78  /**
79   * <a href="InvokerPortletImpl.java.html"><b><i>View Source</i></b></a>
80   *
81   * @author Brian Wing Shun Chan
82   * @author Brian Myunghun Kim
83   *
84   */
85  public class InvokerPortletImpl implements InvokerPortlet {
86  
87      public static void clearResponse(
88          HttpSession session, long plid, String portletId, String languageId) {
89  
90          String sesResponseId = encodeResponseKey(plid, portletId, languageId);
91  
92          getResponses(session).remove(sesResponseId);
93      }
94  
95      public static void clearResponses(HttpSession session) {
96          getResponses(session).clear();
97      }
98  
99      public static void clearResponses(PortletSession session) {
100         getResponses(session).clear();
101     }
102 
103     public static String encodeResponseKey(
104         long plid, String portletId, String languageId) {
105 
106         StringBuilder sb = new StringBuilder();
107 
108         sb.append(plid);
109         sb.append(StringPool.UNDERLINE);
110         sb.append(portletId);
111         sb.append(StringPool.UNDERLINE);
112         sb.append(languageId);
113 
114         return sb.toString();
115     }
116 
117     public static Map<String, InvokerPortletResponse> getResponses(
118         HttpSession session) {
119 
120         Map<String, InvokerPortletResponse> responses =
121             (Map<String, InvokerPortletResponse>)session.getAttribute(
122                 WebKeys.CACHE_PORTLET_RESPONSES);
123 
124         if (responses == null) {
125             responses = new HashMap<String, InvokerPortletResponse>();
126 
127             session.setAttribute(WebKeys.CACHE_PORTLET_RESPONSES, responses);
128         }
129 
130         return responses;
131     }
132 
133     public static Map<String, InvokerPortletResponse> getResponses(
134         PortletSession portletSession) {
135 
136         return getResponses(
137             ((PortletSessionImpl)portletSession).getHttpSession());
138     }
139 
140     public InvokerPortlet create(
141             com.liferay.portal.model.Portlet portletModel, Portlet portlet,
142             PortletContext portletContext)
143         throws PortletException {
144 
145         try {
146             InvokerPortlet invokerPortlet = (InvokerPortlet)clone();
147 
148             invokerPortlet.prepare(portletModel, portlet, portletContext);
149 
150             return invokerPortlet;
151         }
152         catch (PortletException pe) {
153             throw pe;
154         }
155         catch (Exception e) {
156             throw new PortletException(e);
157         }
158     }
159 
160     public InvokerPortlet create(
161             com.liferay.portal.model.Portlet portletModel, Portlet portlet,
162             PortletConfig portletConfig, PortletContext portletContext,
163             boolean facesPortlet, boolean strutsPortlet,
164             boolean strutsBridgePortlet)
165         throws PortletException {
166 
167         try {
168             InvokerPortlet invokerPortlet = (InvokerPortlet)clone();
169 
170             invokerPortlet.prepare(
171                 portletModel, portlet, portletConfig, portletContext,
172                 facesPortlet, strutsPortlet, strutsBridgePortlet);
173 
174             return invokerPortlet;
175         }
176         catch (PortletException pe) {
177             throw pe;
178         }
179         catch (Exception e) {
180             throw new PortletException(e);
181         }
182     }
183 
184     public void destroy() {
185         if (_destroyable) {
186             Thread currentThread = Thread.currentThread();
187 
188             ClassLoader contextClassLoader =
189                 currentThread.getContextClassLoader();
190 
191             ClassLoader portletClassLoader = getPortletClassLoader();
192 
193             try {
194                 if (portletClassLoader != null) {
195                     currentThread.setContextClassLoader(portletClassLoader);
196                 }
197 
198                 removePortletFilters();
199 
200                 _portlet.destroy();
201             }
202             finally {
203                 if (portletClassLoader != null) {
204                     currentThread.setContextClassLoader(contextClassLoader);
205                 }
206             }
207         }
208 
209         _destroyable = false;
210     }
211 
212     public ClassLoader getPortletClassLoader() {
213         return (ClassLoader)_portletContextImpl.getAttribute(
214             PortletServlet.PORTLET_CLASS_LOADER);
215     }
216 
217     public PortletConfigImpl getPortletConfig() {
218         return _portletConfigImpl;
219     }
220 
221     public PortletContextImpl getPortletContext() {
222         return _portletContextImpl;
223     }
224 
225     public Portlet getPortletInstance() {
226         return _portlet;
227     }
228 
229     public Integer getExpCache() {
230         return _expCache;
231     }
232 
233     public void init(PortletConfig portletConfig) throws PortletException {
234         _portletConfigImpl = (PortletConfigImpl)portletConfig;
235 
236         Thread currentThread = Thread.currentThread();
237 
238         ClassLoader contextClassLoader = currentThread.getContextClassLoader();
239 
240         ClassLoader portletClassLoader = getPortletClassLoader();
241 
242         try {
243             if (portletClassLoader != null) {
244                 currentThread.setContextClassLoader(portletClassLoader);
245             }
246 
247             _portlet.init(portletConfig);
248         }
249         finally {
250             if (portletClassLoader != null) {
251                 currentThread.setContextClassLoader(contextClassLoader);
252             }
253         }
254 
255         _destroyable = true;
256     }
257 
258     public boolean isDestroyable() {
259         return _destroyable;
260     }
261 
262     public boolean isFacesPortlet() {
263         return _facesPortlet;
264     }
265 
266     public boolean isStrutsBridgePortlet() {
267         return _strutsBridgePortlet;
268     }
269 
270     public boolean isStrutsPortlet() {
271         return _strutsPortlet;
272     }
273 
274     public void prepare(
275             com.liferay.portal.model.Portlet portletModel, Portlet portlet,
276             PortletContext portletContext)
277         throws PortletException {
278 
279         _portletModel = portletModel;
280         _portletId = _portletModel.getPortletId();
281         _portlet = portlet;
282         _portletContextImpl = (PortletContextImpl)portletContext;
283 
284         if (_log.isDebugEnabled()) {
285             _log.debug(
286                 "Create root cache wrapper for " +
287                     _portletContextImpl.getPortlet().getPortletId());
288         }
289 
290         if (portletModel.isRemote()) {
291             return;
292         }
293 
294         if (ClassUtil.isSubclass(
295                 _portlet.getClass(), PortletDeployer.JSF_MYFACES) ||
296             ClassUtil.isSubclass(
297                 _portlet.getClass(), PortletDeployer.JSF_STANDARD) ||
298             ClassUtil.isSubclass(
299                 _portlet.getClass(), PortletDeployer.JSF_SUN)) {
300 
301             _facesPortlet = true;
302         }
303 
304         _strutsPortlet = ClassUtil.isSubclass(
305             portlet.getClass(), StrutsPortlet.class);
306         _strutsBridgePortlet = ClassUtil.isSubclass(
307             portlet.getClass(),
308             "org.apache.portals.bridges.struts.StrutsPortlet");
309         _expCache = portletModel.getExpCache();
310         setPortletFilters();
311     }
312 
313     public void prepare(
314             com.liferay.portal.model.Portlet portletModel, Portlet portlet,
315             PortletConfig portletConfig, PortletContext portletContext,
316             boolean facesPortlet, boolean strutsPortlet,
317             boolean strutsBridgePortlet)
318         throws PortletException {
319 
320         // From prepare
321 
322         _portletModel = portletModel;
323         _portlet = portlet;
324         _portletId = _portletModel.getPortletId();
325         _portletContextImpl = (PortletContextImpl)portletContext;
326         _facesPortlet = facesPortlet;
327         _strutsPortlet = strutsPortlet;
328         _strutsBridgePortlet = strutsBridgePortlet;
329         _expCache = portletModel.getExpCache();
330         setPortletFilters();
331 
332         if (_log.isDebugEnabled()) {
333             _log.debug(
334                 "Create instance cache wrapper for " +
335                     _portletContextImpl.getPortlet().getPortletId());
336         }
337 
338         // From init
339 
340         _portletConfigImpl = (PortletConfigImpl)portletConfig;
341     }
342 
343     public void processAction(
344             ActionRequest actionRequest, ActionResponse actionResponse)
345         throws IOException {
346 
347         StopWatch stopWatch = null;
348 
349         if (_log.isDebugEnabled()) {
350             stopWatch = new StopWatch();
351 
352             stopWatch.start();
353         }
354 
355         try {
356             invokeAction(actionRequest, actionResponse);
357         }
358         catch (PortletException pe) {
359             actionRequest.setAttribute(
360                 _portletId + PortletException.class.getName(), pe);
361         }
362 
363         if (_log.isDebugEnabled()) {
364             _log.debug(
365                 "processAction for " + _portletId + " takes " +
366                     stopWatch.getTime() + " ms");
367         }
368     }
369 
370     public void processEvent(
371             EventRequest eventRequest, EventResponse eventResponse)
372         throws IOException, PortletException {
373 
374         StopWatch stopWatch = null;
375 
376         if (_log.isDebugEnabled()) {
377             stopWatch = new StopWatch();
378 
379             stopWatch.start();
380         }
381 
382         invokeEvent(eventRequest, eventResponse);
383 
384         if (_log.isDebugEnabled()) {
385             _log.debug(
386                 "processEvent for " + _portletId + " takes " +
387                     stopWatch.getTime() + " ms");
388         }
389     }
390 
391     public void render(
392             RenderRequest renderRequest, RenderResponse renderResponse)
393         throws IOException, PortletException {
394 
395         PortletException portletException =
396             (PortletException)renderRequest.getAttribute(
397                 _portletId + PortletException.class.getName());
398 
399         if (portletException != null) {
400             throw portletException;
401         }
402 
403         StopWatch stopWatch = null;
404 
405         if (_log.isDebugEnabled()) {
406             stopWatch = new StopWatch();
407 
408             stopWatch.start();
409         }
410 
411         String remoteUser = renderRequest.getRemoteUser();
412 
413         if ((remoteUser == null) || (_expCache == null) ||
414             (_expCache.intValue() == 0)) {
415 
416             invokeRender(renderRequest, renderResponse);
417         }
418         else {
419             RenderResponseImpl renderResponseImpl =
420                 (RenderResponseImpl)renderResponse;
421 
422             StringServletResponse stringResponse = (StringServletResponse)
423                 renderResponseImpl.getHttpServletResponse();
424 
425             PortletSession portletSession = renderRequest.getPortletSession();
426 
427             long now = System.currentTimeMillis();
428 
429             Layout layout = (Layout)renderRequest.getAttribute(WebKeys.LAYOUT);
430 
431             Map<String, InvokerPortletResponse> sessionResponses =
432                 getResponses(portletSession);
433 
434             String sessionResponseId = encodeResponseKey(
435                 layout.getPlid(), _portletId,
436                 LanguageUtil.getLanguageId(renderRequest));
437 
438             InvokerPortletResponse response = sessionResponses.get(
439                 sessionResponseId);
440 
441             if (response == null) {
442                 String title = invokeRender(renderRequest, renderResponse);
443 
444                 response = new InvokerPortletResponse(
445                     title, stringResponse.getString(),
446                     now + Time.SECOND * _expCache.intValue());
447 
448                 sessionResponses.put(sessionResponseId, response);
449             }
450             else if ((response.getTime() < now) &&
451                      (_expCache.intValue() > 0)) {
452 
453                 String title = invokeRender(renderRequest, renderResponse);
454 
455                 response.setTitle(title);
456                 response.setContent(stringResponse.getString());
457                 response.setTime(now + Time.SECOND * _expCache.intValue());
458             }
459             else {
460                 renderResponseImpl.setTitle(response.getTitle());
461                 stringResponse.getWriter().print(response.getContent());
462             }
463         }
464 
465         Map<String, String[]> properties =
466             ((RenderResponseImpl)renderResponse).getProperties();
467 
468         if (properties.containsKey("clear-request-parameters")) {
469             Map<String, String[]> renderParameters =
470                 ((RenderRequestImpl)renderRequest).getRenderParameters();
471 
472             renderParameters.clear();
473         }
474 
475         if (_log.isDebugEnabled()) {
476             _log.debug(
477                 "render for " + _portletId + " takes " + stopWatch.getTime() +
478                     " ms");
479         }
480     }
481 
482     public void serveResource(
483             ResourceRequest resourceRequest, ResourceResponse resourceResponse)
484         throws IOException {
485 
486         StopWatch stopWatch = null;
487 
488         if (_log.isDebugEnabled()) {
489             stopWatch = new StopWatch();
490 
491             stopWatch.start();
492         }
493 
494         try {
495             invokeResource(resourceRequest, resourceResponse);
496         }
497         catch (PortletException pe) {
498             resourceRequest.setAttribute(
499                 _portletId + PortletException.class.getName(), pe);
500         }
501 
502         if (_log.isDebugEnabled()) {
503             _log.debug(
504                 "serveResource for " + _portletId + " takes " +
505                     stopWatch.getTime() + " ms");
506         }
507     }
508 
509     public void setPortletFilters() throws PortletException {
510         removePortletFilters();
511 
512         Map<String, com.liferay.portal.model.PortletFilter> portletFilters =
513             _portletModel.getPortletFilters();
514 
515         for (Map.Entry<String, com.liferay.portal.model.PortletFilter> entry :
516                 portletFilters.entrySet()) {
517 
518             com.liferay.portal.model.PortletFilter portletFilterModel =
519                 entry.getValue();
520 
521             PortletFilter portletFilter = PortletFilterFactory.create(
522                 portletFilterModel, _portletContextImpl);
523 
524             Set<String> lifecycles = portletFilterModel.getLifecycles();
525 
526             if (lifecycles.contains(PortletRequest.ACTION_PHASE)) {
527                 List<ActionFilter> actionFilters = _actionFiltersMap.get(
528                     _portletId);
529 
530                 if (actionFilters == null) {
531                     actionFilters = new ArrayList<ActionFilter>();
532                 }
533 
534                 actionFilters.add((ActionFilter)portletFilter);
535 
536                 _actionFiltersMap.put(_portletId, actionFilters);
537             }
538 
539             if (lifecycles.contains(PortletRequest.EVENT_PHASE)) {
540                 List<EventFilter> eventFilters = _eventFiltersMap.get(
541                     _portletId);
542 
543                 if (eventFilters == null) {
544                     eventFilters = new ArrayList<EventFilter>();
545                 }
546 
547                 eventFilters.add((EventFilter)portletFilter);
548 
549                 _eventFiltersMap.put(_portletId, eventFilters);
550             }
551 
552             if (lifecycles.contains(PortletRequest.RENDER_PHASE)) {
553                 List<RenderFilter> renderFilters = _renderFiltersMap.get(
554                     _portletId);
555 
556                 if (renderFilters == null) {
557                     renderFilters = new ArrayList<RenderFilter>();
558                 }
559 
560                 renderFilters.add((RenderFilter)portletFilter);
561 
562                 _renderFiltersMap.put(_portletId, renderFilters);
563             }
564 
565             if (lifecycles.contains(PortletRequest.RESOURCE_PHASE)) {
566                 List<ResourceFilter> resourceFilters = _resourceFiltersMap.get(
567                     _portletId);
568 
569                 if (resourceFilters == null) {
570                     resourceFilters = new ArrayList<ResourceFilter>();
571                 }
572 
573                 resourceFilters.add((ResourceFilter)portletFilter);
574 
575                 _resourceFiltersMap.put(_portletId, resourceFilters);
576             }
577         }
578     }
579 
580     protected void invoke(
581             LiferayPortletRequest portletRequest,
582             LiferayPortletResponse portletResponse, String lifecycle,
583             List<? extends PortletFilter> filters)
584         throws IOException, PortletException {
585 
586         FilterChain filterChain = new FilterChainImpl(_portlet, filters);
587 
588         if (_portletConfigImpl.isWARFile()) {
589             String path =
590                 StringPool.SLASH + _portletConfigImpl.getPortletName() +
591                     "/invoke";
592 
593             RequestDispatcher requestDispatcher =
594                 _portletContextImpl.getServletContext().getRequestDispatcher(
595                     path);
596 
597             HttpServletRequest request = portletRequest.getHttpServletRequest();
598             HttpServletResponse response =
599                 portletResponse.getHttpServletResponse();
600 
601             request.setAttribute(JavaConstants.JAVAX_PORTLET_PORTLET, _portlet);
602             request.setAttribute(PortletRequest.LIFECYCLE_PHASE, lifecycle);
603             request.setAttribute(
604                 PortletServlet.PORTLET_SERVLET_FILTER_CHAIN, filterChain);
605 
606             try {
607 
608                 // Resource phase must be a forward because includes do not
609                 // allow you to specify the content type or headers
610 
611                 if (lifecycle.equals(PortletRequest.RESOURCE_PHASE)) {
612                     requestDispatcher.forward(request, response);
613                 }
614                 else {
615                     requestDispatcher.include(request, response);
616                 }
617             }
618             catch (ServletException se) {
619                 Throwable cause = se.getRootCause();
620 
621                 if (cause instanceof PortletException) {
622                     throw (PortletException)cause;
623                 }
624 
625                 throw new PortletException(cause);
626             }
627         }
628         else {
629             PortletFilterUtil.doFilter(
630                 portletRequest, portletResponse, lifecycle, filterChain);
631         }
632 
633         Map<String, String[]> properties = portletResponse.getProperties();
634 
635         if ((properties != null) && (properties.size() > 0)) {
636             if (_expCache != null) {
637                 String[] expCache = properties.get(
638                     RenderResponse.EXPIRATION_CACHE);
639 
640                 if ((expCache != null) && (expCache.length > 0) &&
641                     (expCache[0] != null)) {
642 
643                     _expCache = new Integer(GetterUtil.getInteger(expCache[0]));
644                 }
645             }
646         }
647     }
648 
649     protected void invokeAction(
650             ActionRequest actionRequest, ActionResponse actionResponse)
651         throws IOException, PortletException {
652 
653         LiferayPortletRequest portletRequest =
654             (LiferayPortletRequest)actionRequest;
655         LiferayPortletResponse portletResponse =
656             (LiferayPortletResponse)actionResponse;
657 
658         List<ActionFilter> actionFilters =
659             _actionFiltersMap.get(_getPortletId(portletResponse));
660 
661         invoke(
662             portletRequest, portletResponse, PortletRequest.ACTION_PHASE,
663             actionFilters);
664     }
665 
666     protected void invokeEvent(
667             EventRequest eventRequest, EventResponse eventResponse)
668         throws IOException, PortletException {
669 
670         LiferayPortletRequest portletRequest =
671             (LiferayPortletRequest)eventRequest;
672         LiferayPortletResponse portletResponse =
673             (LiferayPortletResponse)eventResponse;
674 
675         String portletId = _getPortletId(portletResponse);
676 
677         List<EventFilter> eventFilters = _eventFiltersMap.get(portletId);
678 
679         invoke(
680             portletRequest, portletResponse, PortletRequest.EVENT_PHASE,
681             eventFilters);
682     }
683 
684     protected String invokeRender(
685             RenderRequest renderRequest, RenderResponse renderResponse)
686         throws IOException, PortletException {
687 
688         LiferayPortletRequest portletRequest =
689             (LiferayPortletRequest)renderRequest;
690         LiferayPortletResponse portletResponse =
691             (LiferayPortletResponse)renderResponse;
692 
693         String portletId = _getPortletId(portletResponse);
694 
695         List<RenderFilter> renderFilters = _renderFiltersMap.get(portletId);
696 
697         invoke(
698             portletRequest, portletResponse, PortletRequest.RENDER_PHASE,
699             renderFilters);
700 
701         RenderResponseImpl renderResponseImpl =
702             (RenderResponseImpl)renderResponse;
703 
704         return renderResponseImpl.getTitle();
705     }
706 
707     protected void invokeResource(
708             ResourceRequest resourceRequest, ResourceResponse resourceResponse)
709         throws IOException, PortletException {
710 
711         LiferayPortletRequest portletRequest =
712             (LiferayPortletRequest)resourceRequest;
713         LiferayPortletResponse portletResponse =
714             (LiferayPortletResponse)resourceResponse;
715 
716         String portletId = _getPortletId(portletResponse);
717 
718         List<ResourceFilter> resourceFilters = _resourceFiltersMap.get(
719             portletId);
720 
721         invoke(
722             portletRequest, portletResponse, PortletRequest.RESOURCE_PHASE,
723             resourceFilters);
724     }
725 
726     protected void removePortletFilters() {
727         _actionFiltersMap.remove(_portletId);
728         _eventFiltersMap.remove(_portletId);
729         _renderFiltersMap.remove(_portletId);
730         _resourceFiltersMap.remove(_portletId);
731     }
732 
733     private String _getPortletId(LiferayPortletResponse portletResponse) {
734         PortletResponseImpl portletResponseImpl =
735             (PortletResponseImpl)portletResponse;
736 
737         com.liferay.portal.model.Portlet portlet =
738             portletResponseImpl.getPortlet();
739 
740         return portlet.getPortletId();
741     }
742 
743     private static Log _log = LogFactoryUtil.getLog(InvokerPortletImpl.class);
744 
745     private com.liferay.portal.model.Portlet _portletModel;
746     private String _portletId;
747     private Portlet _portlet;
748     private PortletConfigImpl _portletConfigImpl;
749     private PortletContextImpl _portletContextImpl;
750     private Integer _expCache;
751     private boolean _destroyable;
752     private boolean _facesPortlet;
753     private boolean _strutsPortlet;
754     private boolean _strutsBridgePortlet;
755     private Map<String, List<ActionFilter>> _actionFiltersMap =
756         new HashMap<String, List<ActionFilter>>();
757     private Map<String, List<EventFilter>> _eventFiltersMap =
758         new HashMap<String, List<EventFilter>>();
759     private Map<String, List<RenderFilter>> _renderFiltersMap =
760         new HashMap<String, List<RenderFilter>>();
761     private Map<String, List<ResourceFilter>> _resourceFiltersMap =
762         new HashMap<String, List<ResourceFilter>>();
763 
764 }