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.spring.context;
016    
017    import com.liferay.portal.bean.BeanLocatorImpl;
018    import com.liferay.portal.kernel.bean.BeanLocator;
019    import com.liferay.portal.kernel.bean.PortletBeanLocatorUtil;
020    import com.liferay.portal.kernel.log.Log;
021    import com.liferay.portal.kernel.log.LogFactoryUtil;
022    import com.liferay.portal.kernel.portlet.PortletClassLoaderUtil;
023    import com.liferay.portal.kernel.util.MethodCache;
024    
025    import java.lang.reflect.Method;
026    
027    import javax.servlet.ServletContext;
028    import javax.servlet.ServletContextEvent;
029    
030    import org.springframework.context.ApplicationContext;
031    import org.springframework.web.context.ConfigurableWebApplicationContext;
032    import org.springframework.web.context.ContextLoaderListener;
033    import org.springframework.web.context.WebApplicationContext;
034    import org.springframework.web.context.support.WebApplicationContextUtils;
035    
036    /**
037     * @author Brian Wing Shun Chan
038     * @see    PortletApplicationContext
039     */
040    public class PortletContextLoaderListener extends ContextLoaderListener {
041    
042            @Override
043            public void contextDestroyed(ServletContextEvent servletContextEvent) {
044                    ClassLoader classLoader = PortletClassLoaderUtil.getClassLoader();
045    
046                    ServletContext servletContext = servletContextEvent.getServletContext();
047    
048                    try {
049                            Class<?> beanLocatorUtilClass = Class.forName(
050                                    "com.liferay.util.bean.PortletBeanLocatorUtil", true,
051                                    classLoader);
052    
053                            Method setBeanLocatorMethod = beanLocatorUtilClass.getMethod(
054                                    "setBeanLocator", new Class[] {BeanLocator.class});
055    
056                            setBeanLocatorMethod.invoke(
057                                    beanLocatorUtilClass, new Object[] {null});
058    
059                            PortletBeanLocatorUtil.setBeanLocator(
060                                    servletContext.getServletContextName(), null);
061                    }
062                    catch (Exception e) {
063                            if (_log.isWarnEnabled()) {
064                                    _log.warn(e, e);
065                            }
066                    }
067    
068                    super.contextDestroyed(servletContextEvent);
069            }
070    
071            @Override
072            public void contextInitialized(ServletContextEvent servletContextEvent) {
073                    MethodCache.reset();
074    
075                    ServletContext servletContext = servletContextEvent.getServletContext();
076    
077                    Object previousApplicationContext = servletContext.getAttribute(
078                            WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
079    
080                    servletContext.removeAttribute(
081                            WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
082    
083                    ClassLoader classLoader = PortletClassLoaderUtil.getClassLoader();
084    
085                    super.contextInitialized(servletContextEvent);
086    
087                    PortletBeanFactoryCleaner.readBeans();
088    
089                    ApplicationContext applicationContext =
090                            WebApplicationContextUtils.getWebApplicationContext(servletContext);
091    
092                    BeanLocatorImpl beanLocatorImpl = new BeanLocatorImpl(
093                            classLoader, applicationContext);
094    
095                    beanLocatorImpl.setPACLServletContextName(
096                            servletContext.getServletContextName());
097    
098                    try {
099                            Class<?> beanLocatorUtilClass = Class.forName(
100                                    "com.liferay.util.bean.PortletBeanLocatorUtil", true,
101                                    classLoader);
102    
103                            Method setBeanLocatorMethod = beanLocatorUtilClass.getMethod(
104                                    "setBeanLocator", new Class[] {BeanLocator.class});
105    
106                            setBeanLocatorMethod.invoke(
107                                    beanLocatorUtilClass, new Object[] {beanLocatorImpl});
108    
109                            PortletBeanLocatorUtil.setBeanLocator(
110                                    servletContext.getServletContextName(), beanLocatorImpl);
111                    }
112                    catch (Exception e) {
113                            _log.error(e, e);
114                    }
115    
116                    if (previousApplicationContext == null) {
117                            servletContext.removeAttribute(
118                                    WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
119                    }
120                    else {
121                            servletContext.setAttribute(
122                                    WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE,
123                                    previousApplicationContext);
124                    }
125            }
126    
127            @Override
128            protected void customizeContext(
129                    ServletContext servletContext,
130                    ConfigurableWebApplicationContext configurableWebApplicationContext) {
131    
132                    String configLocation = servletContext.getInitParameter(
133                            _PORTAL_CONFIG_LOCATION_PARAM);
134    
135                    configurableWebApplicationContext.setConfigLocation(configLocation);
136    
137                    configurableWebApplicationContext.addBeanFactoryPostProcessor(
138                            new PortletBeanFactoryPostProcessor());
139            }
140    
141            @Override
142            protected Class<?> determineContextClass(ServletContext servletContext) {
143                    return PortletApplicationContext.class;
144            }
145    
146            @Override
147            protected ApplicationContext loadParentContext(
148                    ServletContext servletContext) {
149    
150                    return null;
151            }
152    
153            private static final String _PORTAL_CONFIG_LOCATION_PARAM =
154                    "portalContextConfigLocation";
155    
156            private static Log _log = LogFactoryUtil.getLog(
157                    PortletContextLoaderListener.class);
158    
159    }