com.sun.enterprise.security.integration.PermissionCreator Maven / Gradle / Ivy
/*
* Copyright (c) 2013, 2021 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.enterprise.security.integration;
import java.lang.reflect.InvocationTargetException;
import java.security.Permission;
import java.security.UnresolvedPermission;
//this implementation is based on sun.security.provider.PolicyFile.java
public class PermissionCreator {
private static final Class[] PARAMS0 = {};
private static final Class[] PARAMS1 = { String.class };
private static final Class[] PARAMS2 = { String.class, String.class };
public static final Permission getInstance(String type, String name, String actions)
throws ClassNotFoundException, InstantiationException, IllegalAccessException, NoSuchMethodException, InvocationTargetException {
Class permissionClass = null;
try {
permissionClass = Class.forName(type, true, Thread.currentThread().getContextClassLoader());
} catch (ClassNotFoundException e) {
// This class is not recognized
return new UnresolvedPermission(type, name, actions, null); // policy provider suppose to translate this permission later
}
if (name == null && actions == null) {
try {
return (Permission) permissionClass.getConstructor(PARAMS0).newInstance(new Object[] {});
} catch (NoSuchMethodException ne) {
try {
return (Permission) permissionClass.getConstructor(PARAMS1).newInstance(new Object[] { name });
} catch (NoSuchMethodException ne1) {
return (Permission) permissionClass.getConstructor(PARAMS2).newInstance(new Object[] { name, actions });
}
}
} else {
if (name != null && actions == null) {
try {
return (Permission) permissionClass.getConstructor(PARAMS1).newInstance(new Object[] { name });
} catch (NoSuchMethodException ne) {
return (Permission) permissionClass.getConstructor(PARAMS2).newInstance(new Object[] { name, actions });
}
} else {
return (Permission) permissionClass.getConstructor(PARAMS2).newInstance(new Object[] { name, actions });
}
}
}
}