001    /**
002     * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portal.kernel.util;
016    
017    import com.liferay.portal.kernel.security.pacl.PACLConstants;
018    import com.liferay.portal.kernel.security.pacl.permission.PortalRuntimePermission;
019    
020    import java.net.URL;
021    import java.net.URLClassLoader;
022    
023    import java.security.Permission;
024    
025    /**
026     * @author Brian Wing Shun Chan
027     */
028    public class PortalClassLoaderUtil {
029    
030            public static ClassLoader getClassLoader() {
031                    SecurityManager securityManager = System.getSecurityManager();
032    
033                    if (securityManager != null) {
034                            Permission permission = new RuntimePermission(
035                                    PACLConstants.RUNTIME_PERMISSION_GET_CLASSLOADER.concat(
036                                    StringPool.PERIOD).concat("portal"));
037    
038                            securityManager.checkPermission(permission);
039                    }
040    
041                    return _classLoader;
042            }
043    
044            public static void setClassLoader(ClassLoader classLoader) {
045                    PortalRuntimePermission.checkSetBeanProperty(
046                            PortalClassLoaderUtil.class);
047    
048                    if (ServerDetector.isJOnAS() && JavaDetector.isJDK6()) {
049                            _classLoader = new URLClassLoader(new URL[0], classLoader);
050                    }
051                    else {
052                            _classLoader = classLoader;
053                    }
054            }
055    
056            private static ClassLoader _classLoader;
057    
058    }