1 files changed, 83 insertions, 0 deletions
diff --git a/jetty-annotations/src/main/java/org/eclipse/jetty/annotations/WebListenerAnnotation.java b/jetty-annotations/src/main/java/org/eclipse/jetty/annotations/WebListenerAnnotation.java
new file mode 100644
index 0000000000..a92a27c9c5
--- /dev/null
+++ b/jetty-annotations/src/main/java/org/eclipse/jetty/annotations/WebListenerAnnotation.java
@@ -0,0 +1,83 @@
+// ========================================================================
+// Copyright (c) 2006-2009 Mort Bay Consulting Pty. Ltd.
+// ------------------------------------------------------------------------
+// All rights reserved. This program and the accompanying materials
+// are made available under the terms of the Eclipse Public License v1.0
+// and Apache License v2.0 which accompanies this distribution.
+// The Eclipse Public License is available at 
+// http://www.eclipse.org/legal/epl-v10.html
+// The Apache License v2.0 is available at
+// http://www.opensource.org/licenses/apache2.0.php
+// You may elect to redistribute this code under either of these licenses. 
+// ========================================================================
+
+package org.eclipse.jetty.annotations;
+
+import javax.servlet.ServletContextAttributeListener;
+import javax.servlet.ServletContextListener;
+import javax.servlet.ServletRequestAttributeListener;
+import javax.servlet.ServletRequestListener;
+import javax.servlet.http.HttpSessionAttributeListener;
+import javax.servlet.http.HttpSessionListener;
+
+import org.eclipse.jetty.util.log.Log;
+import org.eclipse.jetty.webapp.DiscoveredAnnotation;
+import org.eclipse.jetty.webapp.MetaData;
+import org.eclipse.jetty.webapp.WebAppContext;
+import org.eclipse.jetty.webapp.MetaData.Origin;
+
+/**
+ * WebListenerAnnotation
+ *
+ *
+ */
+public class WebListenerAnnotation extends DiscoveredAnnotation
+{
+
+    /**
+     * @param context
+     * @param className
+     */
+    public WebListenerAnnotation(WebAppContext context, String className)
+    {
+        super(context, className);
+    }
+
+    /** 
+     * @see org.eclipse.jetty.annotations.ClassAnnotation#apply()
+     */
+    public void apply()
+    {
+        // TODO check algorithm against ordering rules for descriptors v annotations
+        
+        Class clazz = getTargetClass();
+        
+        if (clazz == null)
+        {
+            Log.warn(_className+" cannot be loaded");
+            return;
+        }
+
+        try
+        {
+            if (ServletContextListener.class.isAssignableFrom(clazz) || 
+                    ServletContextAttributeListener.class.isAssignableFrom(clazz) ||
+                    ServletRequestListener.class.isAssignableFrom(clazz) ||
+                    ServletRequestAttributeListener.class.isAssignableFrom(clazz) ||
+                    HttpSessionListener.class.isAssignableFrom(clazz) ||
+                    HttpSessionAttributeListener.class.isAssignableFrom(clazz))
+            {
+                java.util.EventListener listener = (java.util.EventListener)clazz.newInstance();
+                MetaData metaData = ((MetaData)_context.getAttribute(MetaData.METADATA));
+                if (metaData.getOrigin(clazz.getName()+".listener") == Origin.NotSet)
+                    _context.addEventListener(listener);
+            }
+            else
+                Log.warn(clazz.getName()+" does not implement one of the servlet listener interfaces");
+        }
+        catch (Exception e)
+        {
+            Log.warn(e);
+        }
+    }
+}