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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  package org.eclipse.jetty.cdi.servlet;
20  
21  import javax.naming.NamingException;
22  import javax.naming.Reference;
23  
24  import org.eclipse.jetty.plus.jndi.Resource;
25  import org.eclipse.jetty.server.handler.ContextHandler;
26  import org.eclipse.jetty.webapp.WebAppContext;
27  
28  /**
29   * Utility class suitable for initializing CDI/Weld on Embedded Jetty
30   */
31  public class JettyWeldInitializer
32  {
33      /**
34       * Initialize WebAppContext to support CDI/Weld.
35       * <p>
36       * Initializes Context, then sets up WebAppContext system and server classes to allow Weld to operate from Server
37       * level.
38       * <p>
39       * Includes {@link #initContext(ContextHandler)} behavior as well.
40       * @param webapp the webapp
41       * @throws NamingException if unable to bind BeanManager context
42       */
43      public static void initWebApp(WebAppContext webapp) throws NamingException
44      {
45          initContext(webapp);
46  
47          // webapp cannot change / replace weld classes
48          webapp.addSystemClass("org.jboss.weld.");
49          webapp.addSystemClass("org.jboss.classfilewriter.");
50          webapp.addSystemClass("org.jboss.logging.");
51          webapp.addSystemClass("com.google.common.");
52          webapp.addSystemClass("org.eclipse.jetty.cdi.websocket.annotation.");
53          
54  
55          // don't hide weld classes from webapps (allow webapp to use ones from system classloader)
56          webapp.prependServerClass("-org.eclipse.jetty.cdi.websocket.annotation.");
57          webapp.prependServerClass("-org.eclipse.jetty.cdi.core.");
58          webapp.prependServerClass("-org.eclipse.jetty.cdi.servlet.");
59          webapp.addServerClass("-org.jboss.weld.");
60          webapp.addServerClass("-org.jboss.classfilewriter.");
61          webapp.addServerClass("-org.jboss.logging.");
62          webapp.addServerClass("-com.google.common.");
63      
64      }
65  
66      public static void initContext(ContextHandler handler) throws NamingException
67      {
68          // Add context specific weld container reference.
69          // See https://issues.jboss.org/browse/WELD-1710
70          // and https://github.com/weld/core/blob/2.2.5.Final/environments/servlet/core/src/main/java/org/jboss/weld/environment/servlet/WeldServletLifecycle.java#L244-L253
71          handler.setInitParameter("org.jboss.weld.environment.container.class","org.jboss.weld.environment.jetty.JettyContainer");
72  
73          // Setup Weld BeanManager reference
74          Reference ref = new Reference("javax.enterprise.inject.spi.BeanManager","org.jboss.weld.resources.ManagerObjectFactory",null);
75          new Resource(handler,"BeanManager",ref);
76      }
77  }