001    /**
002     * Copyright (c) 2000-2013 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.util;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.util.Validator;
020    
021    /**
022     * @author Brian Wing Shun Chan
023     */
024    public class LayoutCloneFactory {
025    
026            public static LayoutClone getInstance() {
027                    if (_layoutClone == null) {
028                            if (Validator.isNotNull(PropsValues.LAYOUT_CLONE_IMPL)) {
029                                    if (_log.isDebugEnabled()) {
030                                            _log.debug("Instantiate " + PropsValues.LAYOUT_CLONE_IMPL);
031                                    }
032    
033                                    ClassLoader classLoader =
034                                            ClassLoaderUtil.getPortalClassLoader();
035    
036                                    try {
037                                            Class<?> clazz = classLoader.loadClass(
038                                                    PropsValues.LAYOUT_CLONE_IMPL);
039    
040                                            _layoutClone = (LayoutClone)clazz.newInstance();
041                                    }
042                                    catch (Exception e) {
043                                            _log.error(e, e);
044                                    }
045                            }
046                    }
047                    else {
048                            if (_log.isDebugEnabled()) {
049                                    _log.debug("Return " + _layoutClone.getClass().getName());
050                            }
051                    }
052    
053                    return _layoutClone;
054            }
055    
056            private static Log _log = LogFactoryUtil.getLog(LayoutCloneFactory.class);
057    
058            private static LayoutClone _layoutClone;
059    
060    }