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1
12
13 package org.eclipse.equinox.http.servlet.internal;
14
15 import java.util.*;
16 import javax.servlet.ServletConfig  ;
17 import org.osgi.framework.*;
18 import org.osgi.service.http.HttpService;
19
20 public class Activator implements BundleActivator {
21
22 private static final String DEFAULT_SERVICE_DESCRIPTION = "Equinox Servlet Bridge"; private static final String DEFAULT_SERVICE_VENDOR = "Eclipse.org";
25 private static BundleContext context;
26 private static Map serviceRegistrations = new HashMap();
27
28 public void start(BundleContext context) throws Exception {
29 startHttpServiceProxy(context);
30 }
31
32 public void stop(BundleContext context) throws Exception {
33 stopHttpServiceProxy(context);
34 }
35
36 private static synchronized void startHttpServiceProxy(BundleContext bundleContext) {
37 context = bundleContext;
38 Object [] proxyServlets = serviceRegistrations.keySet().toArray();
39 for (int i = 0; i < proxyServlets.length; ++i) {
40 ServiceRegistration registration = registerHttpService((ProxyServlet) proxyServlets[i]);
41 serviceRegistrations.put(proxyServlets[i], registration);
42 }
43 }
44
45 private static synchronized void stopHttpServiceProxy(BundleContext bundleContext) {
46 Object [] proxyServlets = serviceRegistrations.keySet().toArray();
47 for (int i = 0; i < proxyServlets.length; ++i) {
48 ServiceRegistration registration = (ServiceRegistration) serviceRegistrations.put(proxyServlets[i], null);
49 registration.unregister();
50 }
51 context = null;
52 }
53
54 static synchronized void addProxyServlet(ProxyServlet proxyServlet) {
55 ServiceRegistration registration = null;
56 if (context != null)
57 registration = registerHttpService(proxyServlet);
58
59 serviceRegistrations.put(proxyServlet, registration);
60 }
61
62 private static ServiceRegistration registerHttpService(ProxyServlet proxyServlet) {
63 HttpServiceFactory factory = new HttpServiceFactory(proxyServlet);
64 Dictionary serviceProperties = new Hashtable(2);
65 ServletConfig config = proxyServlet.getServletConfig();
66 Enumeration initparameterNames = config.getInitParameterNames();
67 while (initparameterNames.hasMoreElements()) {
68 String name = (String ) initparameterNames.nextElement();
69 serviceProperties.put(name, config.getInitParameter(name));
70 }
71
72 if (serviceProperties.get(Constants.SERVICE_VENDOR) == null)
73 serviceProperties.put(Constants.SERVICE_VENDOR, DEFAULT_SERVICE_VENDOR);
74
75 if (serviceProperties.get(Constants.SERVICE_DESCRIPTION) == null)
76 serviceProperties.put(Constants.SERVICE_DESCRIPTION, DEFAULT_SERVICE_DESCRIPTION);
77
78 return context.registerService(HttpService.class.getName(), factory, serviceProperties);
79 }
80
81 static synchronized void removeProxyServlet(ProxyServlet proxyServlet) {
82 ServiceRegistration registration = (ServiceRegistration) serviceRegistrations.remove(proxyServlet);
83 if (registration != null)
84 registration.unregister();
85 }
86 }
87 |
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