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1
5 package org.exoplatform.portlet.faces;
6
7 import java.io.IOException  ;
8 import javax.faces.FactoryFinder;
9 import javax.faces.application.*;
10 import javax.faces.context.FacesContext;
11 import javax.faces.context.FacesContextFactory;
12 import javax.faces.lifecycle.Lifecycle;
13 import javax.faces.lifecycle.LifecycleFactory;
14 import javax.portlet.*;
15 import org.apache.commons.logging.Log;
16 import org.exoplatform.services.log.LogUtil;
17 import org.exoplatform.commons.utils.ExceptionUtil;
18 import org.exoplatform.portlet.faces.application.FacesPortletViewHandler;
19 import org.exoplatform.portlet.faces.application.PortletFacesData;
20
21
26 public class ExoFacesPortlet extends GenericPortlet {
27
28 private static final String COMPONENT_TAG_STACK_ATTR = "javax.faces.webapp.COMPONENT_TAG_STACK";
29 private static final String GLOBAL_ID_VIEW = "javax.faces.webapp.GLOBAL_ID_VIEW";
30 private static final String CURRENT_VIEW_ROOT = "javax.faces.webapp.CURRENT_VIEW_ROOT";
31
32 private Lifecycle facesLifecycle_ ;
33
34 public void init(PortletConfig config) throws PortletException {
35 super.init(config);
36 try {
37 XHTMLRendererConfiguration.confiure() ;
38 XHTMLMPRendererConfiguration.confiure() ;
39 LifecycleFactory lfactory = (LifecycleFactory) FactoryFinder.getFactory( FactoryFinder.LIFECYCLE_FACTORY );
40 facesLifecycle_ = lfactory.getLifecycle( LifecycleFactory.DEFAULT_LIFECYCLE );
41 ApplicationFactory factory =
42 (ApplicationFactory) FactoryFinder.getFactory(FactoryFinder.APPLICATION_FACTORY);
43 Application app = factory.getApplication();
44 ViewHandler handler = new FacesPortletViewHandler(app.getStateManager());
45 app.setViewHandler( handler );
46 } catch (Exception ex) {
47 getLog().error("Error: ", ex);
48 }
49 }
50
51 public void render (RenderRequest request, RenderResponse response) throws PortletException, java.io.IOException {
52 Object stack = request.getAttribute(COMPONENT_TAG_STACK_ATTR );
54 Object currentViewRoot = request.getAttribute(CURRENT_VIEW_ROOT );
55 Object globalIdView = request.getAttribute(GLOBAL_ID_VIEW);
56 request.removeAttribute(CURRENT_VIEW_ROOT );
58 request.removeAttribute(COMPONENT_TAG_STACK_ATTR );
59 request.removeAttribute(GLOBAL_ID_VIEW);
60 WindowState state = request.getWindowState();
62 if (!state.equals(WindowState.MINIMIZED)) {
63 response.setContentType("text/html") ;
64 processFacesLifeCycle(request, response) ;
65 }
66 request.setAttribute(COMPONENT_TAG_STACK_ATTR, stack);
68 request.setAttribute(CURRENT_VIEW_ROOT , currentViewRoot);
69 request.setAttribute(GLOBAL_ID_VIEW, globalIdView);
70 }
72
73 public void processAction(ActionRequest request, ActionResponse response) throws PortletException, IOException {
74 processFacesLifeCycle(request, response) ;
75 }
76
77 protected void processFacesLifeCycle(PortletRequest request, PortletResponse response) {
78 String lastViewId = null ;
79 FacesContext facesContext = null;
80 try {
81 PortletMode mode = request.getPortletMode() ;
82 PortletConfig config = getPortletConfig();
83 FacesContextFactory factory =
84 (FacesContextFactory) FactoryFinder.getFactory(FactoryFinder.FACES_CONTEXT_FACTORY );
85 facesContext = factory.getFacesContext( config, request, response, facesLifecycle_ );
86 PortletFacesData data = PortletFacesData.getPortletFacesData(facesContext) ;
87 lastViewId = request.getParameter(".view-id") ;
88 if (lastViewId != null) {
89 int idx = lastViewId.indexOf("?") ;
90 if(idx > 0) lastViewId = lastViewId.substring(0, idx);
91 } else {
92 lastViewId = data.getLastView(mode) ;
93 }
94 request.setAttribute("javax.servlet.include.path_info", lastViewId) ;
95
96 facesLifecycle_.execute(facesContext);
97 facesLifecycle_.render(facesContext);
98 data.setLastView(mode, facesContext.getViewRoot().getViewId()) ;
99 } catch (Throwable t) {
100 t = ExceptionUtil.getRootCause(t) ;
101 logError(t, lastViewId) ;
102 } finally {
103 facesContext.release();
104 }
105 }
106
107 private void logError(Throwable t, String lastViewId) {
108 StringBuffer b = new StringBuffer () ;
109 b.append("portlet is " + getPortletConfig().getPortletName()).append("\n") ;
110 b.append("Last View Id is " + lastViewId).append("\n") ;
111 b.append("ExoFacesPortlet Error: ") ;
112 getLog().error(b.toString(), t) ;
113 }
114
115 private Log getLog() { return LogUtil.getLog("org.exoplatform.portlet.faces.faces"); }
116 } |
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