|
1
12
13 package org.eclipse.equinox.http.registry.internal;
14
15 import java.util.ArrayList  ;
16 import java.util.List ;
17 import org.eclipse.core.runtime.*;
18 import org.eclipse.equinox.http.registry.internal.ExtensionPointTracker.Listener;
19 import org.osgi.framework.AdminPermission;
20 import org.osgi.framework.Bundle;
21 import org.osgi.service.http.HttpContext;
22
23 public class HttpContextManager implements Listener {
24
25 private static final String HTTPCONTEXTS_EXTENSION_POINT = "org.eclipse.equinox.http.registry.httpcontexts"; private static final String HTTPCONTEXT = "httpcontext"; private static final String NAME = "name"; private static final String ID = "id"; private static final String CLASS = "class"; private static final String PATH = "path"; private static final String MIMEMAPPING = "mime-mapping"; private static final String MIMEEXTENSION = "extension"; private static final String MIMETYPE = "mime-type"; private static final String RESOURCEMAPPING = "resource-mapping"; private static final String BUNDLE = "bundle";
37 private List registered = new ArrayList ();
38 private HttpRegistryManager httpRegistryManager;
39 private ExtensionPointTracker tracker;
40
41 public HttpContextManager(HttpRegistryManager httpRegistryManager, IExtensionRegistry registry) {
42 this.httpRegistryManager = httpRegistryManager;
43 tracker = new ExtensionPointTracker(registry, HTTPCONTEXTS_EXTENSION_POINT, this);
44 }
45
46 public void start() {
47 tracker.open();
48 }
49
50 public void stop() {
51 tracker.close();
52 }
53
54 public void added(IExtension extension) {
55 IConfigurationElement[] elements = extension.getConfigurationElements();
56 for (int i = 0; i < elements.length; i++) {
57 IConfigurationElement httpContextElement = elements[i];
58 if (!HTTPCONTEXT.equals(httpContextElement.getName()))
59 continue;
60
61 String httpContextId = httpContextElement.getAttribute(ID);
62 if (httpContextId == null) {
63 httpContextId = httpContextElement.getAttribute(NAME);
64 if (httpContextId == null)
65 continue;
66 }
67
68 if (httpContextId.indexOf('.') == -1)
69 httpContextId = httpContextElement.getNamespaceIdentifier() + "." + httpContextId;
71 HttpContext context = null;
72 String clazz = httpContextElement.getAttribute(CLASS);
73 if (clazz != null) {
74 try {
75 context = (HttpContext) httpContextElement.createExecutableExtension(CLASS);
76 } catch (CoreException e) {
77 e.printStackTrace();
79 continue;
80 }
81 } else {
82 Bundle contributingBundle = httpRegistryManager.getBundle(extension.getContributor());
83 DefaultRegistryHttpContext defaultContext = httpRegistryManager.createDefaultRegistryHttpContext();
84
85 String oldPath = httpContextElement.getAttribute(PATH);
86 if (oldPath != null)
87 defaultContext.addResourceMapping(contributingBundle, oldPath);
88
89 IConfigurationElement[] resourceMappingElements = httpContextElement.getChildren(RESOURCEMAPPING);
90 for (int j = 0; j < resourceMappingElements.length; j++) {
91 IConfigurationElement resourceMappingElement = resourceMappingElements[i];
92 String path = resourceMappingElement.getAttribute(PATH);
93 Bundle resourceBundle = contributingBundle;
94 String bundleName = resourceMappingElement.getAttribute(BUNDLE);
95 if (bundleName != null) {
96 resourceBundle = httpRegistryManager.getBundle(bundleName);
97 if (resourceBundle == null)
98 continue;
99 if (System.getSecurityManager() != null) {
100 AdminPermission resourcePermission = new AdminPermission(resourceBundle, "resource"); if (!contributingBundle.hasPermission(resourcePermission))
102 continue;
103 }
104 }
105 defaultContext.addResourceMapping(resourceBundle, path);
106 }
107
108 IConfigurationElement[] mimeMappingElements = httpContextElement.getChildren(MIMEMAPPING);
109 for (int j = 0; j < mimeMappingElements.length; j++) {
110 IConfigurationElement mimeMappingElement = mimeMappingElements[i];
111 String mimeExtension = mimeMappingElement.getAttribute(MIMEEXTENSION);
112 String mimeType = mimeMappingElement.getAttribute(MIMETYPE);
113 defaultContext.addMimeMapping(mimeExtension, mimeType);
114 }
115 context = defaultContext;
116 }
117
118 if (httpRegistryManager.addHttpContextContribution(httpContextId, context, extension.getContributor()))
119 registered.add(httpContextElement);
120 }
121 }
122
123 public void removed(IExtension extension) {
124 IConfigurationElement[] elements = extension.getConfigurationElements();
125 for (int i = 0; i < elements.length; i++) {
126 IConfigurationElement httpContextElement = elements[i];
127 if (!HTTPCONTEXT.equals(httpContextElement.getName()))
128 continue;
129
130 String httpContextId = httpContextElement.getAttribute(ID);
131 if (httpContextId == null) {
132 httpContextId = httpContextElement.getAttribute(NAME);
133 if (httpContextId == null)
134 continue;
135 }
136 if (httpContextId.indexOf('.') == -1)
137 httpContextId = httpContextElement.getNamespaceIdentifier() + "." + httpContextId;
139 if (registered.remove(httpContextElement))
140 httpRegistryManager.removeHttpContextContribution(httpContextId);
141 }
142 }
143 }
144 |
Popular Tags |
Java API By Example, From Geeks To Geeks.