/******************************************************************************
* Copyright (c) 2006, 2010 VMware Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html and the Apache License v2.0
* is available at http://www.opensource.org/licenses/apache2.0.php.
* You may elect to redistribute this code under either of these licenses.
*
* Contributors:
* VMware Inc.
*****************************************************************************/
package org.eclipse.gemini.blueprint.context.support;
import java.security.AccessControlContext;
import java.security.Permission;
import java.security.ProtectionDomain;
import org.osgi.framework.Bundle;
/**
* Security utility for wrapping an AccessControlContext around a Bundle.
*
* @author Costin Leau
*/
abstract class AccessControlFactory {
private static class BundleProtectionDomain extends ProtectionDomain {
private final Bundle bundle;
BundleProtectionDomain(Bundle bundle) {
// cannot determine CodeSource or PermissionCollection from a bundle
super(null, null);
this.bundle = bundle;
}
@Override
public boolean implies(Permission permission) {
return bundle.hasPermission(permission);
}
}
/**
* Creates an AccessControlContext based on the current security context and the given bundle.
*
* @param bundle
* @return
*/
static AccessControlContext createContext(Bundle bundle) {
return new AccessControlContext(new ProtectionDomain[] { new BundleProtectionDomain(bundle) });
}
}