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/*******************************************************************************
* Copyright (c) 2005-2007 Cognos Incorporated, IBM Corporation and others
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Cognos Incorporated - initial API and implementation
* IBM Corporation - bug fixes and enhancements
*******************************************************************************/
package org.eclipse.equinox.http.registry.internal;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.*;
import org.eclipse.equinox.http.registry.internal.ExtensionPointTracker.Listener;
import org.osgi.framework.AdminPermission;
import org.osgi.framework.Bundle;
import org.osgi.service.http.HttpContext;
public class HttpContextManager implements Listener {
private static final String HTTPCONTEXTS_EXTENSION_POINT = "org.eclipse.equinox.http.registry.httpcontexts"; //$NON-NLS-1$
private static final String HTTPCONTEXT = "httpcontext"; //$NON-NLS-1$
private static final String NAME = "name"; //$NON-NLS-1$
private static final String ID = "id"; //$NON-NLS-1$
private static final String CLASS = "class"; //$NON-NLS-1$
private static final String PATH = "path"; //$NON-NLS-1$
private static final String MIMEMAPPING = "mime-mapping"; //$NON-NLS-1$
private static final String MIMEEXTENSION = "extension"; //$NON-NLS-1$
private static final String MIMETYPE = "mime-type"; //$NON-NLS-1$
private static final String RESOURCEMAPPING = "resource-mapping"; //$NON-NLS-1$
private static final String BUNDLE = "bundle"; //$NON-NLS-1$
private List registered = new ArrayList();
private HttpRegistryManager httpRegistryManager;
private ExtensionPointTracker tracker;
public HttpContextManager(HttpRegistryManager httpRegistryManager, IExtensionRegistry registry) {
this.httpRegistryManager = httpRegistryManager;
tracker = new ExtensionPointTracker(registry, HTTPCONTEXTS_EXTENSION_POINT, this);
}
public void start() {
tracker.open();
}
public void stop() {
tracker.close();
}
public void added(IExtension extension) {
IConfigurationElement[] elements = extension.getConfigurationElements();
for (int i = 0; i < elements.length; i++) {
IConfigurationElement httpContextElement = elements[i];
if (!HTTPCONTEXT.equals(httpContextElement.getName()))
continue;
String httpContextId = httpContextElement.getAttribute(ID);
if (httpContextId == null) {
httpContextId = httpContextElement.getAttribute(NAME);
if (httpContextId == null)
continue;
}
if (httpContextId.indexOf('.') == -1)
httpContextId = httpContextElement.getNamespaceIdentifier() + "." + httpContextId; //$NON-NLS-1$
HttpContext context = null;
String clazz = httpContextElement.getAttribute(CLASS);
if (clazz != null) {
try {
context = (HttpContext) httpContextElement.createExecutableExtension(CLASS);
} catch (CoreException e) {
// log it.
e.printStackTrace();
continue;
}
} else {
Bundle contributingBundle = httpRegistryManager.getBundle(extension.getContributor());
DefaultRegistryHttpContext defaultContext = httpRegistryManager.createDefaultRegistryHttpContext();
String oldPath = httpContextElement.getAttribute(PATH);
if (oldPath != null)
defaultContext.addResourceMapping(contributingBundle, oldPath);
IConfigurationElement[] resourceMappingElements = httpContextElement.getChildren(RESOURCEMAPPING);
for (int j = 0; j < resourceMappingElements.length; j++) {
IConfigurationElement resourceMappingElement = resourceMappingElements[j];
String path = resourceMappingElement.getAttribute(PATH);
Bundle resourceBundle = contributingBundle;
String bundleName = resourceMappingElement.getAttribute(BUNDLE);
if (bundleName != null) {
resourceBundle = httpRegistryManager.getBundle(bundleName);
if (resourceBundle == null)
continue;
if (System.getSecurityManager() != null) {
AdminPermission resourcePermission = new AdminPermission(resourceBundle, "resource"); //$NON-NLS-1$
if (!contributingBundle.hasPermission(resourcePermission))
continue;
}
}
defaultContext.addResourceMapping(resourceBundle, path);
}
IConfigurationElement[] mimeMappingElements = httpContextElement.getChildren(MIMEMAPPING);
for (int j = 0; j < mimeMappingElements.length; j++) {
IConfigurationElement mimeMappingElement = mimeMappingElements[j];
String mimeExtension = mimeMappingElement.getAttribute(MIMEEXTENSION);
String mimeType = mimeMappingElement.getAttribute(MIMETYPE);
defaultContext.addMimeMapping(mimeExtension, mimeType);
}
context = defaultContext;
}
if (httpRegistryManager.addHttpContextContribution(httpContextId, context, extension.getContributor()))
registered.add(httpContextElement);
}
}
public void removed(IExtension extension) {
IConfigurationElement[] elements = extension.getConfigurationElements();
for (int i = 0; i < elements.length; i++) {
IConfigurationElement httpContextElement = elements[i];
if (!HTTPCONTEXT.equals(httpContextElement.getName()))
continue;
String httpContextId = httpContextElement.getAttribute(ID);
if (httpContextId == null) {
httpContextId = httpContextElement.getAttribute(NAME);
if (httpContextId == null)
continue;
}
if (httpContextId.indexOf('.') == -1)
httpContextId = httpContextElement.getNamespaceIdentifier() + "." + httpContextId; //$NON-NLS-1$
if (registered.remove(httpContextElement))
httpRegistryManager.removeHttpContextContribution(httpContextId);
}
}
}
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