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/*
 * #%L
 * Wildfly Camel :: Subsystem
 * %%
 * Copyright (C) 2013 - 2014 RedHat
 * %%
 * Licensed 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.
 * #L%
 */


package org.wildfly.extension.camel.security;

import java.security.AccessController;
import java.security.PrivilegedAction;


/**
 * Privileged actions used by this package.
 *
 * @author [email protected]
 * @since 19-Jan-2010
 */
class SecurityActions {

    private SecurityActions() {
    }

    static String getSystemProperty(final String key) {
        if (System.getSecurityManager() == null) {
            return System.getProperty(key);
        }
        return AccessController.doPrivileged(new PrivilegedAction() {
            public String run() {
                return System.getProperty(key);
            }
        });
    }

    static void setSystemProperty(final String key, final String value) {
        if (System.getSecurityManager() == null) {
            System.setProperty(key, value);
        } else {
            AccessController.doPrivileged(new PrivilegedAction() {
                public Void run() {
                    System.setProperty(key, value);
                    return null;
                }
            });
        }
    }

    static ClassLoader getClassLoader(final Class clazz) {
        if (System.getSecurityManager() == null) {
            return clazz.getClassLoader();
        } else {
            return AccessController.doPrivileged(new PrivilegedAction() {
                public ClassLoader run() {
                    return clazz.getClassLoader();
                }
            });
        }
    }

    public static ClassLoader getContextClassLoader() {
        if (System.getSecurityManager() == null) {
            return Thread.currentThread().getContextClassLoader();
        } else {
            return AccessController.doPrivileged(new PrivilegedAction() {
                public ClassLoader run() {
                    return Thread.currentThread().getContextClassLoader();
                }
            });
        }
    }

    public static void setContextClassLoader(final ClassLoader classLoader) {
        if (System.getSecurityManager() == null) {
            Thread.currentThread().setContextClassLoader(classLoader);
        } else {
            AccessController.doPrivileged(new PrivilegedAction() {
                public Void run() {
                    Thread.currentThread().setContextClassLoader(classLoader);
                    return null;
                }
            });
        }
    }
}