001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.security.ldap;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.util.ClassUtil;
020    import com.liferay.portal.kernel.util.InstanceFactory;
021    import com.liferay.portal.util.ClassLoaderUtil;
022    import com.liferay.portal.util.PropsValues;
023    
024    /**
025     * @author Brian Wing Shun Chan
026     * @author Shuyang Zhou
027     */
028    public class AttributesTransformerFactory {
029    
030            public static AttributesTransformer getInstance() {
031                    return _attributesTransformer;
032            }
033    
034            public static void setInstance(
035                    AttributesTransformer attributesTransformer) {
036    
037                    if (_log.isDebugEnabled()) {
038                            _log.debug("Set " + ClassUtil.getClassName(attributesTransformer));
039                    }
040    
041                    if (attributesTransformer == null) {
042                            _attributesTransformer = _originalAttributesTransformer;
043                    }
044                    else {
045                            _attributesTransformer = attributesTransformer;
046                    }
047            }
048    
049            public void afterPropertiesSet() throws Exception {
050                    if (_log.isDebugEnabled()) {
051                            _log.debug(
052                                    "Instantiate " + PropsValues.LDAP_ATTRS_TRANSFORMER_IMPL);
053                    }
054    
055                    ClassLoader classLoader = ClassLoaderUtil.getPortalClassLoader();
056    
057                    _originalAttributesTransformer =
058                            (AttributesTransformer)InstanceFactory.newInstance(
059                                    classLoader, PropsValues.LDAP_ATTRS_TRANSFORMER_IMPL);
060    
061                    _attributesTransformer = _originalAttributesTransformer;
062            }
063    
064            private static Log _log = LogFactoryUtil.getLog(
065                    AttributesTransformerFactory.class);
066    
067            private static volatile AttributesTransformer _attributesTransformer;
068            private static AttributesTransformer _originalAttributesTransformer;
069    
070    }