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.security.auth;
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 Amos Fong
026     * @author Shuyang Zhou
027     */
028    public class EmailAddressGeneratorFactory {
029    
030            public static EmailAddressGenerator getInstance() {
031                    return _emailAddressGenerator;
032            }
033    
034            public static void setInstance(
035                    EmailAddressGenerator emailAddressGenerator) {
036    
037                    if (_log.isDebugEnabled()) {
038                            _log.debug("Set " + ClassUtil.getClassName(emailAddressGenerator));
039                    }
040    
041                    if (emailAddressGenerator == null) {
042                            _emailAddressGenerator = _originalEmailAddressGenerator;
043                    }
044                    else {
045                            _emailAddressGenerator = emailAddressGenerator;
046                    }
047            }
048    
049            public void afterPropertiesSet() throws Exception {
050                    if (_log.isDebugEnabled()) {
051                            _log.debug(
052                                    "Instantiate " + PropsValues.USERS_EMAIL_ADDRESS_GENERATOR);
053                    }
054    
055                    ClassLoader classLoader = ClassLoaderUtil.getPortalClassLoader();
056    
057                    _originalEmailAddressGenerator =
058                            (EmailAddressGenerator)InstanceFactory.newInstance(
059                                    classLoader, PropsValues.USERS_EMAIL_ADDRESS_GENERATOR);
060    
061                    _emailAddressGenerator = _originalEmailAddressGenerator;
062            }
063    
064            private static Log _log = LogFactoryUtil.getLog(
065                    EmailAddressGeneratorFactory.class);
066    
067            private static volatile EmailAddressGenerator _emailAddressGenerator;
068            private static EmailAddressGenerator _originalEmailAddressGenerator;
069    
070    }