Permissions.java

/*
 * ProActive Parallel Suite(TM):
 * The Open Source library for parallel and distributed
 * Workflows & Scheduling, Orchestration, Cloud Automation
 * and Big Data Analysis on Enterprise Grids & Clouds.
 *
 * Copyright (c) 2007 - 2017 ActiveEon
 * Contact: contact@activeeon.com
 *
 * This library is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation: version 3 of
 * the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 * If needed, contact us to obtain a release under GPL Version 2 or 3
 * or a different license than the AGPL.
 */
package org.ow2.proactive.policy;

import java.security.Permission;
import java.security.PermissionCollection;
import java.util.Enumeration;

import org.ow2.proactive.permissions.AllPermission;


/**
 *
 * The only goal if this class is to support
 * org.ow2.proactive.permissions.AllPermission in the same
 * manner as it is done in java.security.Permissions
 * for standard java.security.AllPermission
 *
 */
public final class Permissions extends PermissionCollection {

    private java.security.Permissions permissions = new java.security.Permissions();

    private boolean paAllPermissions = false;

    @Override
    public void add(Permission permission) {
        if (permission instanceof AllPermission) {
            paAllPermissions = true;
            return;
        }
        permissions.add(permission);
    }

    @Override
    public Enumeration<Permission> elements() {
        return permissions.elements();
    }

    @Override
    public boolean implies(Permission permission) {
        if (paAllPermissions) {
            return true;
        }

        return permissions.implies(permission);
    }
}