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1   /*
2   Copyright (c) 2006, University of Tromsø
3   All rights reserved.
4   
5   Redistribution and use in source and binary forms, with or without 
6   modification, are permitted provided that the following conditions are met:
7   
8    * Redistributions of source code must retain the above copyright notice, this list 
9      of conditions and the following disclaimer.
10  
11   * Redistributions in binary form must reproduce the above copyright notice, this 
12     list of conditions and the following disclaimer in the documentation and/or other 
13     materials provided with the distribution.
14  
15   * Neither the name of the University of Tromsø nor the names of its contributors may 
16     be used to endorse or promote products derived from this software without specific 
17     prior written permission.
18  
19  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
20  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 
21  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
22  SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
23  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 
24  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 
25  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
26  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 
27  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 
28  DAMAGE.
29  */
30  
31  package axis.dynamic;
32  
33  import java.util.ArrayList;
34  import java.util.Collections;
35  import java.util.Comparator;
36  import java.util.Iterator;
37  import java.util.List;
38  import java.util.concurrent.ConcurrentHashMap;
39  import java.util.concurrent.ConcurrentMap;
40  
41  import javax.xml.namespace.QName;
42  
43  import org.apache.axis.AxisEngine;
44  import org.apache.axis.ConfigurationException;
45  import org.apache.axis.EngineConfiguration;
46  import org.apache.axis.Handler;
47  import org.apache.axis.SimpleTargetedChain;
48  import org.apache.axis.configuration.SimpleProvider;
49  import org.apache.axis.deployment.wsdd.WSDDDeployment;
50  import org.apache.axis.description.ServiceDesc;
51  import org.apache.axis.handlers.http.URLMapper;
52  import org.apache.axis.handlers.soap.SOAPService;
53  import org.apache.axis.transport.http.AxisServlet;
54  
55  
56  /**
57   * Extends {@link SoapConfiguration}, adds ability to deploy / undeploy services and a few property setters. 
58   */
59  public class SoapServerConfiguration extends SoapConfiguration
60  {
61    
62    /** the deployed services. */
63    private final ConcurrentMap<QName, SOAPService> _services = new ConcurrentHashMap<QName, SOAPService>();
64  
65    /**
66     * Creates a server configuration with a http transport {@link Handler} with a {@link URLMapper}.
67     */
68    public SoapServerConfiguration() 
69    {
70      // we need to register a global transport with an URLMapper request handler. 
71      // otherwise, Axis won't find our service methods.
72      deployTransport("http", new SimpleTargetedChain(new URLMapper(), null, null));
73    }
74  
75    /**
76     * @param disable
77     */
78    public void setDisableServicesList( boolean disable )
79    {
80      // synchronization shouldn't be necessary, it's a Hashtable and only modified on startup
81      _globalOptions.put(AxisServlet.INIT_PROPERTY_DISABLE_SERVICES_LIST, Boolean.toString(disable));
82    }
83    
84    /**
85     * necessary to tell axis which path to put into the links on generated html pages.
86     * @param path 
87     */
88    public void setServicesPath( String path )
89    {
90      String fixed = path;
91      // Damn - currently, Axis absolutely needs these slashes...
92      if (! fixed.startsWith("/")) fixed = "/"+fixed;
93      if (! fixed.endsWith("/")) fixed = fixed+"/";
94      // synchronization shouldn't be necessary, it's a Hashtable and only modified on startup
95      _globalOptions.put(AxisServlet.INIT_PROPERTY_SERVICES_PATH, fixed);
96    }
97    
98    /**
99     * called from {@link AxisEngine#init()}.
100    * @param engine
101    * @throws ConfigurationException
102    * @see EngineConfiguration#configureEngine(AxisEngine)
103    * @see AxisEngine#init()
104    */
105   @Override
106   public void configureEngine( AxisEngine engine ) throws ConfigurationException
107   {
108     // this also sets the _engine field
109     super.configureEngine(engine);
110     
111     // note: this is reasonably thread safe - if a service is deployed after we call 
112     // _services.values(), we check the _engine field and call setEngine() for the new
113     // service. it's possible that setEngine() is called twice, but that should be a no-op.
114     for (SOAPService service : _services.values()) 
115     {
116       // this also delegates the type mappings of the services to our global type mapping registry.
117       service.setEngine(_engine);
118     }
119   }
120 
121   /**
122    * @param name
123    * @param service
124    */
125   public void deployService( String name, SOAPService service )
126   {
127     SOAPService present = _services.putIfAbsent(new QName(name), service);
128     
129     if (present != null) throw new IllegalArgumentException("duplicate service name: ["+name+"]");
130     
131     if (_engine != null)
132     {
133       service.setEngine(_engine);
134     }
135     
136     
137   }
138 
139   /**
140    * @param name
141    */
142   public void undeployService( String name )
143   {
144     _services.remove(new QName(name));
145     
146   }
147 
148   /**
149    * @param qname
150    * @return service for given name
151    * @see EngineConfiguration#getService(QName)
152    */
153   public SOAPService getService( QName qname ) 
154   {
155     return _services.get(qname);
156   }
157 
158   /**
159    * This implementation currently just returns null. I don't know how namespace-based dispatching
160    * is supposed to work. It should be fairly easy to implement this method. See {@link WSDDDeployment}.
161    * The implementation in {@link SimpleProvider} seems to be broken (muddles up namspace and local name).  
162    * @param namespace 
163    * @return null 
164    */
165   public SOAPService getServiceByNamespaceURI( String namespace )
166   {
167     return null;
168   }
169 
170   /**
171    * returns an enumeration of the services currently deployed to this engine
172    * @return an enumeration of the services currently deployed to this engine
173    */
174   public Iterator<ServiceDesc> getDeployedServices()
175   {
176     List<ServiceDesc> serviceDescs = new ArrayList<ServiceDesc>();
177     for (SOAPService service : _services.values())
178     {
179       serviceDescs.add(service.getServiceDescription());
180     }
181     
182     // sort by service name
183     Collections.sort(serviceDescs, SERVICE_DESC_COMPARATOR);
184     
185     return serviceDescs.iterator();
186   }
187   
188   /** compares service descriptions by their name, ignoring case */
189   private static final Comparator<ServiceDesc> SERVICE_DESC_COMPARATOR =
190   new Comparator<ServiceDesc>()
191   {
192     public int compare( ServiceDesc desc1, ServiceDesc desc2 )
193     {
194       return desc1.getName().compareToIgnoreCase(desc2.getName());
195     }
196   };
197 
198 }