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1   /*
2    * Copyright  2004 The Apache Software Foundation.
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License");
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License.
15   *
16   */
17  package org.apache.kandula.utility;
18  
19  import java.io.IOException;
20  import java.net.InetAddress;
21  import java.net.UnknownHostException;
22  import java.util.HashMap;
23  
24  import org.apache.axis2.AxisFault;
25  import org.apache.axis2.context.ConfigurationContext;
26  import org.apache.axis2.context.ConfigurationContextFactory;
27  import org.apache.axis2.description.AxisOperation;
28  import org.apache.axis2.description.AxisService;
29  import org.apache.axis2.transport.http.SimpleHTTPServer;
30  
31  /***
32   * @author <a href="mailto:thilina@opensource.lk"> Thilina Gunarathne </a>
33   */
34  public class KandulaListener {
35  
36  	private static KandulaListener instance = null;
37  
38  	private ConfigurationContext responseConfigurationContext;
39  
40  	protected static AxisOperation[] operations;
41  
42  	private SimpleHTTPServer receiver = null;
43  
44  	private boolean serverStarted = false;
45  
46  	public int serverPort;
47  
48  	private KandulaListener() throws IOException {
49  		KandulaConfiguration configuration = KandulaConfiguration.getInstance();
50  		responseConfigurationContext = ConfigurationContextFactory
51  				.createConfigurationContextFromFileSystem(configuration
52  						.getKandulaListenerRepository(), configuration
53  						.getKandulaListenerAxis2Xml());
54  		try {
55  			serverPort = Integer.parseInt(KandulaConfiguration.getInstance()
56  					.getKadulaListenerPort());
57  		} catch (Exception e) {
58  			serverPort = 5059;
59  		}
60  		while (receiver == null) {
61  
62  			receiver = new SimpleHTTPServer(responseConfigurationContext,
63  					serverPort);
64  
65  		}
66  	}
67  
68  	public static KandulaListener getInstance() throws IOException {
69  		if (instance == null) {
70  			instance = new KandulaListener();
71  		}
72  		return instance;
73  	}
74  
75  	public void start() throws IOException {
76  		if (!serverStarted) {
77  
78  			receiver.start();
79  			serverStarted = true;
80  			System.out.print("Server started on port " + serverPort + ".....");
81  		}
82  
83  	}
84  
85  	public void stop() {
86  		receiver.stop();
87  		serverStarted = false;
88  	}
89  
90  	/***
91  	 * @param service
92  	 * @throws AxisFault
93  	 *             To add services with only one operation, which is the
94  	 *             frequent case in reponses
95  	 */
96  	public void addService(AxisService service) throws AxisFault {
97  
98  		service.setClassLoader(Thread.currentThread().getContextClassLoader());
99  		HashMap allServices = responseConfigurationContext
100 				.getAxisConfiguration().getServices();
101 
102 		if (allServices.get(service.getName()) == null) {
103 
104 			responseConfigurationContext.getAxisConfiguration().addService(
105 					service);
106 			// TODO : check how to do this or this is neccessary anymore
107 			// Utils.resolvePhases(receiver.getSystemContext()
108 			// .getAxisConfiguration(), service);
109 		}
110 
111 	}
112 
113 	public String getHost() throws UnknownHostException {
114 		return "http://"
115 				+ InetAddress.getLocalHost().getHostAddress()
116 				+ ":"
117 				+ KandulaConfiguration.getInstance()
118 						.getKadulaListenerPortForEPR() + "/axis2/services/";
119 	}
120 }