[jboss-cvs] JBossAS SVN: r77429 - trunk/tomcat/src/main/org/jboss/web/jsf/integration/injection.

[jboss-cvs-commits at lists.jboss.org]

Author: emuckenhuber
Date: 2008-08-25 09:49:23 -0400 (Mon, 25 Aug 2008)
New Revision: 77429

Added:
   trunk/tomcat/src/main/org/jboss/web/jsf/integration/injection/JBossDelegatingInjectionProvider.java
Log:
[JBAS-4399] delegating JSF injection provider

Added: trunk/tomcat/src/main/org/jboss/web/jsf/integration/injection/JBossDelegatingInjectionProvider.java
===================================================================
--- trunk/tomcat/src/main/org/jboss/web/jsf/integration/injection/JBossDelegatingInjectionProvider.java	                        (rev 0)
+++ trunk/tomcat/src/main/org/jboss/web/jsf/integration/injection/JBossDelegatingInjectionProvider.java	2008-08-25 13:49:23 UTC (rev 77429)
@@ -0,0 +1,105 @@
+/*
+ * JBoss, Home of Professional Open Source.
+ * Copyright 2008, Red Hat Middleware LLC, and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jboss.web.jsf.integration.injection;
+
+import javax.faces.context.FacesContext;
+import javax.servlet.ServletContext;
+
+import org.apache.InstanceManager;
+import org.jboss.logging.Logger;
+import org.jboss.web.tomcat.service.TomcatInjectionContainer;
+
+import com.sun.faces.spi.InjectionProvider;
+import com.sun.faces.spi.InjectionProviderException;
+
+/**
+ * A JSF injection provider. This class delegates the injection to the <code>TomcatInjectionContainer</code>.
+ * 
+ * @author <a href="mailto:emuckenh at redhat.com">Emanuel Muckenhuber</a>
+ * @version $Revision$
+ */
+public class JBossDelegatingInjectionProvider implements InjectionProvider
+{
+   /** The injection container. */
+   private TomcatInjectionContainer injectionContainer = null;
+   
+   /** The logger. */
+   private static final Logger log = Logger.getLogger(InjectionProvider.class);
+   
+   public JBossDelegatingInjectionProvider()
+   {
+      Object context = FacesContext.getCurrentInstance().getExternalContext().getContext();
+      // In case of a servletContext - could maybe also be a PortletContext !?
+      if(context instanceof ServletContext && context != null)
+      {
+         ServletContext servletContext = (ServletContext) (context);
+         this.injectionContainer = (TomcatInjectionContainer) servletContext.getAttribute(InstanceManager.class.getName());
+      }
+      if(injectionContainer == null)
+         log.debug("JSF injection not available for this web deployment.");
+   }
+   
+   public void inject(Object object) throws InjectionProviderException
+   {
+      if(! checkInjectionContainer()) return;
+      try
+      {
+         injectionContainer.processInjectors(object);
+      }
+      catch(Throwable t)
+      {
+         throw new InjectionProviderException("unable to process injections.", t);
+      }
+   }
+
+   public void invokePostConstruct(Object object) throws InjectionProviderException
+   {
+      if(! checkInjectionContainer()) return;
+      try
+      {
+         injectionContainer.postConstruct(object);
+      }
+      catch(Throwable t)
+      {
+         throw new InjectionProviderException("unable to process invokePostConstruct.", t);
+      }
+   }
+
+   public void invokePreDestroy(Object object) throws InjectionProviderException
+   {
+      if(! checkInjectionContainer()) return;
+      try
+      {
+         injectionContainer.preDestroy(object);
+      }
+      catch(Throwable t)
+      {
+         throw new InjectionProviderException("unable to process invokePreDestroy.", t);
+      }
+   }
+
+   private boolean checkInjectionContainer()
+   {
+      return injectionContainer != null;
+   }
+}
+