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1   /*
2    * $Id$
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  package org.apache.struts2.osgi;
23  
24  import org.osgi.framework.BundleActivator;
25  import org.osgi.framework.Bundle;
26  import org.osgi.framework.BundleContext;
27  
28  import javax.servlet.ServletContext;
29  import java.util.List;
30  import java.util.Map;
31  
32  /***
33   * Implementations of this class start an OSGi container. They must also add the BundleContext to
34   * the ServletContext under the key  OsgiHost.OSGI_BUNDLE_CONTEXT;
35   */
36  public interface OsgiHost {
37      String OSGI_BUNDLE_CONTEXT = "__struts_osgi_bundle_context"; 
38      String OSGI_HEADER_STRUTS_ENABLED = "Struts2-Enabled";
39  
40      void destroy() throws Exception;
41      void init(ServletContext servletContext);
42      Map<String, Bundle> getBundles();
43      Map<String, Bundle> getActiveBundles();
44      BundleContext getBundleContext();
45  }