Author: mykee
Date: Wed Dec  1 15:27:08 2010
New Revision: 1041052

URL: http://svn.apache.org/viewvc?rev=1041052&view=rev
Log:
SLING-1708 contrib/scripting/velocity is missing suitable resourceloader for 
the JCR

Added:
    
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/SlingResourceLoader.java
   (with props)
    
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/VelocityScriptEngineService.java
   (with props)
Modified:
    
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/VelocityTemplatesScriptEngine.java

Added: 
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/SlingResourceLoader.java
URL: 
http://svn.apache.org/viewvc/sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/SlingResourceLoader.java?rev=1041052&view=auto
==============================================================================
--- 
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/SlingResourceLoader.java
 (added)
+++ 
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/SlingResourceLoader.java
 Wed Dec  1 15:27:08 2010
@@ -0,0 +1,83 @@
+/*
+ * 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.sling.scripting.velocity;
+
+import java.io.InputStream;
+
+import org.apache.commons.collections.ExtendedProperties;
+import org.apache.sling.api.resource.ResourceResolver;
+import org.apache.velocity.exception.ResourceNotFoundException;
+import org.apache.velocity.runtime.resource.Resource;
+import org.apache.velocity.runtime.resource.loader.ResourceLoader;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.FrameworkUtil;
+import org.osgi.framework.ServiceReference;
+
+public class SlingResourceLoader extends ResourceLoader {
+
+    private VelocityScriptEngineService velocityScriptEngineService;
+
+    private ResourceResolver resourceResolver;
+
+    @Override
+       public long getLastModified(Resource arg0) {
+               // TODO Auto-generated method stub
+               return 0;
+       }
+
+       @Override
+       public InputStream getResourceStream(String absPath )
+                       throws ResourceNotFoundException {
+               InputStream returnValue = null;
+                       
+               if ( absPath != null && absPath.startsWith( "/" ) && 
resourceResolver != null )
+               {
+                       org.apache.sling.api.resource.Resource resource = 
resourceResolver.resolve( absPath );
+                       if ( resource != null )
+                       {
+                               returnValue = resource.adaptTo( 
InputStream.class );
+                       }
+               }
+               
+               return returnValue;
+       }
+
+       @Override
+       public void init(ExtendedProperties arg0) {
+               Bundle bundle = FrameworkUtil.getBundle( 
VelocityScriptEngineService.class );
+               BundleContext bundleContext = bundle.getBundleContext();
+               ServiceReference serviceRef = 
bundleContext.getServiceReference( VelocityScriptEngineService.class.getName() 
);
+               
+               if ( serviceRef != null )
+               {
+                       velocityScriptEngineService = 
(VelocityScriptEngineService) bundleContext.getService( serviceRef );
+                       if ( velocityScriptEngineService != null )
+                       {
+                               resourceResolver = 
velocityScriptEngineService.getResourceResolver();
+                       }
+               }
+       }
+
+       @Override
+       public boolean isSourceModified(Resource arg0) {
+               return true;
+       }
+       
+
+
+}

Propchange: 
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/SlingResourceLoader.java
------------------------------------------------------------------------------
    svn:mime-type = text/plain

Added: 
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/VelocityScriptEngineService.java
URL: 
http://svn.apache.org/viewvc/sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/VelocityScriptEngineService.java?rev=1041052&view=auto
==============================================================================
--- 
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/VelocityScriptEngineService.java
 (added)
+++ 
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/VelocityScriptEngineService.java
 Wed Dec  1 15:27:08 2010
@@ -0,0 +1,80 @@
+/*
+ * 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.sling.scripting.velocity;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Property;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.ReferencePolicy;
+import org.apache.felix.scr.annotations.Service;
+import org.apache.sling.api.resource.LoginException;
+import org.apache.sling.api.resource.ResourceResolver;
+import org.apache.sling.api.resource.ResourceResolverFactory;
+import org.osgi.framework.BundleContext;
+
+...@component(name = 
"org.apache.sling.scripting.velocity.VelocityScriptEngineService", label = 
"%auth.name", description = "%auth.description")
+...@service( value = VelocityScriptEngineService.class )
+public class VelocityScriptEngineService {
+       
+       @Reference
+    private ResourceResolverFactory resourceResolverFactory;
+
+    private ResourceResolver resourceResolver;
+    
+    public static final String PROP_RESOURCE_LOADER_USER = 
"velocityresourceloader.user"; 
+    
+    @Property( name = PROP_RESOURCE_LOADER_USER )
+    public static final String DEFAULT_RESOURCE_LOADER_USER = null;
+    
+    public ResourceResolver getResourceResolver ()
+    {
+       return resourceResolver;
+    }
+    
+    @SuppressWarnings("unused")
+    @Activate
+    private void activate(final BundleContext bundleContext,
+            final Map<String, Object> properties) throws LoginException {
+               if ( resourceResolverFactory != null )
+               {
+                       Map<String, Object> authInfo = new HashMap<String, 
Object>();
+               // Use the user which is configured to access the resources if 
available
+                       Object prop = properties.get(PROP_RESOURCE_LOADER_USER);
+               final String resourceLoaderUser = ( prop != null ) ? 
prop.toString() : null;
+               if (resourceLoaderUser != null && resourceLoaderUser.length() > 
0) {
+                   authInfo.put(ResourceResolverFactory.USER_IMPERSONATION, 
resourceLoaderUser);
+               }
+                       
+                       resourceResolver = 
resourceResolverFactory.getAdministrativeResourceResolver( authInfo );
+               }
+    }
+
+    @SuppressWarnings("unused")
+    @Deactivate
+    private void deactivate(final BundleContext bundleContext) {
+    }
+    
+
+}

Propchange: 
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/VelocityScriptEngineService.java
------------------------------------------------------------------------------
    svn:mime-type = text/plain

Modified: 
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/VelocityTemplatesScriptEngine.java
URL: 
http://svn.apache.org/viewvc/sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/VelocityTemplatesScriptEngine.java?rev=1041052&r1=1041051&r2=1041052&view=diff
==============================================================================
--- 
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/VelocityTemplatesScriptEngine.java
 (original)
+++ 
sling/trunk/contrib/scripting/velocity/src/main/java/org/apache/sling/scripting/velocity/VelocityTemplatesScriptEngine.java
 Wed Dec  1 15:27:08 2010
@@ -48,7 +48,14 @@ public class VelocityTemplatesScriptEngi
                
                velocity = new VelocityEngine();
                
-            velocity.init();
+               // include the Sling resource loader for Velocity
+               Properties props = new Properties();
+               props.put("sling.resource.loader.description", "Sling Resource 
Loader for Velocity");
+               props.put("sling.resource.loader.class", 
"org.apache.sling.scripting.velocity.SlingResourceLoader");
+               props.put("sling.resource.loader.cache", "false");
+               props.put("resource.loader","file,sling");
+               
+            velocity.init( props );
         } catch (Exception e) {
             throw new RuntimeException("Exception in Velocity.init() "
                 + e.getMessage(), e);


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