/* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.harmony.prefs.tests.java.util.prefs;

import java.security.Permission;

/**
 * utility class for java.util.prefs test
 * 
 */
class MockSecurityManager extends SecurityManager {

    SecurityManager dflt;

    public MockSecurityManager() {
        super();
        dflt = System.getSecurityManager();
    }

    public void install() {
        System.setSecurityManager(this);
    }

    public void restoreDefault() {
        System.setSecurityManager(dflt);
    }

    public void checkPermission(Permission perm) {
        if (perm instanceof RuntimePermission
                && perm.getName().equals("preferences")) {
            throw new SecurityException();
        } else if (dflt != null) {
            dflt.checkPermission(perm);
        }
    }

    public void checkPermission(Permission perm, Object ctx) {
        if (perm instanceof RuntimePermission
                && perm.getName().equals("preferences")) {
            throw new SecurityException();
        } else if (dflt != null) {
            dflt.checkPermission(perm, ctx);
        }
    }

}