Author: rahul
Date: Wed Jan 31 12:13:46 2007
New Revision: 501972

URL: http://svn.apache.org/viewvc?view=rev&rev=501972
Log:
Add a ShaleDialogELContext, which is a Commons SCXML Context backed by the 
application VariableResolver. This simplest approach should work for JSF 1.2 as 
well, but uses the deprecated (in 1.2) Application#getVariableResolver(). Given 
the changes in the underlying EL API, we may have to resort to reflection at 
some point. @since tag points to 1.0.5, will port to 1_0_X branch in a few. 
Remove related todo.
SHALE-403

Added:
    
shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/ShaleDialogELContext.java
   (with props)
Modified:
    
shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/SCXMLDialogContext.java

Modified: 
shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/SCXMLDialogContext.java
URL: 
http://svn.apache.org/viewvc/shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/SCXMLDialogContext.java?view=diff&rev=501972&r1=501971&r2=501972
==============================================================================
--- 
shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/SCXMLDialogContext.java
 (original)
+++ 
shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/SCXMLDialogContext.java
 Wed Jan 31 12:13:46 2007
@@ -38,7 +38,6 @@
 import org.apache.commons.scxml.TriggerEvent;
 import org.apache.commons.scxml.env.SimpleDispatcher;
 import org.apache.commons.scxml.env.SimpleErrorReporter;
-import org.apache.commons.scxml.env.jsp.ELContext;
 import org.apache.commons.scxml.model.ModelException;
 import org.apache.commons.scxml.model.SCXML;
 import org.apache.commons.scxml.model.State;
@@ -95,7 +94,7 @@
                         new SimpleDispatcher(), new SimpleErrorReporter());
         SCXML statemachine = dialog.getStateMachine();
         this.executor.setStateMachine(statemachine);
-        Context rootCtx = new ELContext();
+        Context rootCtx = new ShaleDialogELContext();
         rootCtx.setLocal(Globals.DIALOG_PROPERTIES, new DialogProperties());
         this.executor.setRootContext(rootCtx);
         this.executor.addListener(statemachine, new DelegatingSCXMLListener());
@@ -104,10 +103,6 @@
             log().debug("Constructor(id=" + id + ", name="
                       + name + ")");
         }
-
-        // TODO - Consider adding an explicit root context backed by either the
-        // request or session map for greater EL capacities in the SCXML
-        // document describing this dialog
 
     }
 

Added: 
shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/ShaleDialogELContext.java
URL: 
http://svn.apache.org/viewvc/shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/ShaleDialogELContext.java?view=auto&rev=501972
==============================================================================
--- 
shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/ShaleDialogELContext.java
 (added)
+++ 
shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/ShaleDialogELContext.java
 Wed Jan 31 12:13:46 2007
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.shale.dialog.scxml;
+
+import javax.faces.context.FacesContext;
+import javax.faces.el.VariableResolver;
+
+import org.apache.commons.scxml.env.SimpleContext;
+
+
+/**
+ * <p>EL context used by the Commons SCXML executor driving the Shale
+ * dialog, backed by application [EMAIL PROTECTED] VariableResolver}.</p>
+ *
+ * @since 1.0.5
+ *
+ * $Id$
+ */
+
+public class ShaleDialogELContext extends SimpleContext {
+
+    /** Serial version UID. */
+    private static final long serialVersionUID = 1L;
+
+   /**
+     * Constructor.
+     */
+    public ShaleDialogELContext() {
+        super();
+    }
+
+
+    /**
+     * Get the value of this variable from the application
+     * [EMAIL PROTECTED] VariableResolver} in use; delegating to parent.
+     *
+     * @param name The variable name
+     * @return Object The variable value
+     * @see org.apache.commons.scxml.Context#get(java.lang.String)
+     */
+    public Object get(final String name) {
+        FacesContext context = FacesContext.getCurrentInstance();
+        VariableResolver vr = context.getApplication().getVariableResolver();
+        Object value = vr.resolveVariable(context, name);
+        if (value != null) {
+            return value;
+        }
+        return super.get(name);
+    }
+
+
+}

Propchange: 
shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/ShaleDialogELContext.java
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    svn:eol-style = native

Propchange: 
shale/framework/trunk/shale-dialog-scxml/src/main/java/org/apache/shale/dialog/scxml/ShaleDialogELContext.java
------------------------------------------------------------------------------
    svn:keywords = Date Author Id Revision HeadURL


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