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1   /*
2    * $Id: DefaultActionSupport.java 651946 2008-04-27 13:41:38Z apetrelli $
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  package org.apache.struts2.dispatcher.ng;
22  
23  import org.apache.struts2.dispatcher.Dispatcher;
24  import org.apache.struts2.dispatcher.StaticContentLoader;
25  import org.apache.struts2.dispatcher.mapper.ActionMapping;
26  import org.apache.struts2.RequestUtils;
27  
28  import javax.servlet.ServletContext;
29  import javax.servlet.ServletException;
30  import javax.servlet.http.HttpServletRequest;
31  import javax.servlet.http.HttpServletResponse;
32  import java.io.IOException;
33  
34  /***
35   * Contains execution operations for filters
36   */
37  public class ExecuteOperations {
38      private ServletContext servletContext;
39      private Dispatcher dispatcher;
40  
41      public ExecuteOperations(ServletContext servletContext, Dispatcher dispatcher) {
42          this.dispatcher = dispatcher;
43          this.servletContext = servletContext;
44      }
45  
46      /***
47       * Tries to execute a request for a static resource
48       * @return True if it was handled, false if the filter should fall through
49       * @throws IOException
50       * @throws ServletException
51       */
52      public boolean executeStaticResourceRequest(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
53          // there is no action in this request, should we look for a static resource?
54          String resourcePath = RequestUtils.getServletPath(request);
55  
56          if ("".equals(resourcePath) && null != request.getPathInfo()) {
57              resourcePath = request.getPathInfo();
58          }
59  
60          StaticContentLoader staticResourceLoader = dispatcher.getContainer().getInstance(StaticContentLoader.class);
61          if (staticResourceLoader.canHandle(resourcePath)) {
62              staticResourceLoader.findStaticResource(resourcePath, request, response);
63              // The framework did its job here
64              return true;
65  
66          } else {
67              // this is a normal request, let it pass through
68              return false;
69          }
70      }
71  
72      /***
73       * Executes an action
74       * @throws ServletException
75       */
76      public void executeAction(HttpServletRequest request, HttpServletResponse response, ActionMapping mapping) throws ServletException {
77          dispatcher.serviceAction(request, response, servletContext, mapping);
78      }
79  }