/*
 * Copyright 2012-2017 Red Hat, Inc.
 *
 * This file is part of Thermostat.
 *
 * Thermostat is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2, or (at your
 * option) any later version.
 *
 * Thermostat 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Thermostat; see the file COPYING.  If not see
 * <http://www.gnu.org/licenses/>.
 *
 * Linking this code with other modules is making a combined work
 * based on this code.  Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 *
 * As a special exception, the copyright holders of this code give
 * you permission to link this code with independent modules to
 * produce an executable, regardless of the license terms of these
 * independent modules, and to copy and distribute the resulting
 * executable under terms of your choice, provided that you also
 * meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module
 * which is not derived from or based on this code.  If you modify
 * this code, you may extend this exception to your version of the
 * library, but you are not obligated to do so.  If you do not wish
 * to do so, delete this exception statement from your version.
 */

package com.redhat.thermostat.launcher.internal;

import java.security.Permission;

/*
 * This is used in order to work around the problem of System.exit() being
 * called in LauncherImpl.
 * 
 * This needs to be in its own file. Right now it's ownly used in
 * LauncherImplTest. If you are getting StackOverflowErrors, make sure this
 * SecurityManager impl isn't in the same class which is run with
 * PowerMockRunner.
 *
 */
public class DisallowSystemExitSecurityManager extends SecurityManager {

    @Override
    public void checkPermission(Permission perm) {
        // allow anything.
    }

    @Override
    public void checkPermission(Permission perm, Object context) {
        // allow anything.
    }

    @Override
    public void checkExit(int status) {
        throw new ExitException(status);
    }

    @SuppressWarnings("serial")
    public static class ExitException extends SecurityException {
        private int exitStatus;

        public ExitException(int exitStatus) {
            this.exitStatus = exitStatus;
        }

        public int getExitStatus() {
            return this.exitStatus;
        }

        @Override
        public String getMessage() {
            return "System.exit(" + this.exitStatus + ")";
        }
    }
}