/*
* The Kuali Financial System, a comprehensive financial management system for higher education.
*
* Copyright 2005-2014 The Kuali Foundation
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.kuali.kfs.sys.web.servlet;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import org.apache.commons.lang.StringUtils;
import org.directwebremoting.Container;
import org.directwebremoting.extend.Configurator;
import org.directwebremoting.impl.DwrXmlConfigurator;
import org.directwebremoting.impl.StartupUtil;
import org.directwebremoting.servlet.DwrServlet;
import org.kuali.kfs.sys.KFSConstants;
import org.kuali.kfs.sys.context.SpringContext;
import org.kuali.rice.core.api.util.ClassLoaderUtils;
import org.kuali.rice.krad.service.KRADServiceLocator;
import org.kuali.rice.krad.service.KualiModuleService;
import org.kuali.rice.krad.service.ModuleService;
import org.kuali.rice.krad.util.spring.NamedOrderedListBean;
import org.springframework.core.io.DefaultResourceLoader;
public class KfsDWRServlet extends DwrServlet {
/**
*
*/
private static final long serialVersionUID = -3903455224197903186L;
protected static final String CLASSPATH_RESOURCE_PREFIX = "classpath.resource.prefix";
public static List<String> HACK_ADDITIONAL_FILES = new ArrayList<String>();
private Boolean springBasedConfigPath;
/**
* This method calls the super version then loads the dwr config file
* specified in the loaded module definitions.
*
* @see uk.ltd.getahead.dwr.DWRServlet#configure(javax.servlet.ServletConfig,
* uk.ltd.getahead.dwr.Configuration)
*/
protected List<NamedOrderedListBean> getDwrNamedOrderedListBeans(String listName) {
List <NamedOrderedListBean> dwrListBeans = new ArrayList<NamedOrderedListBean>();
Map<String, NamedOrderedListBean> namedOrderedListBeans = SpringContext.getBeansOfType(NamedOrderedListBean.class);
for (NamedOrderedListBean nameOrderedListBean : namedOrderedListBeans.values()) {
if (nameOrderedListBean.getName().equals(listName)) {
dwrListBeans.add((NamedOrderedListBean) nameOrderedListBean);
}
}
return dwrListBeans;
}
protected DwrXmlConfigurator generateConfigurator(DefaultResourceLoader resourceLoader, String scriptConfigurationFilePath ) throws ServletException {
try {
InputStream is = resourceLoader.getResource(scriptConfigurationFilePath).getInputStream();
DwrXmlConfigurator dwrXmlConfigurator = new DwrXmlConfigurator();
dwrXmlConfigurator.setInputStream(is);
return dwrXmlConfigurator;
} catch (Exception e) {
throw new ServletException(e);
}
}
@Override
protected void configureContainer(Container container, ServletConfig servletConfig) throws ServletException, IOException {
List<Configurator> configurators = new ArrayList<Configurator>();
DefaultResourceLoader resourceLoader = new DefaultResourceLoader(ClassLoaderUtils.getDefaultClassLoader());
String classpathResourcePrefix = KRADServiceLocator.getKualiConfigurationService().getPropertyValueAsString(CLASSPATH_RESOURCE_PREFIX);
for (NamedOrderedListBean namedOrderedListBean : this.getDwrNamedOrderedListBeans(KFSConstants.SCRIPT_CONFIGURATION_FILES_LIST_NAME)) {
for (String scriptConfigurationFilePath : namedOrderedListBean.getList()) {
if (getSpringBasedConfigPath()) {
try {
configurators.add( this.generateConfigurator(resourceLoader, scriptConfigurationFilePath));
} catch (Exception e) {
throw new ServletException(e);
}
}
}
}
KualiModuleService kmi = SpringContext.getBean(KualiModuleService.class);
List<ModuleService> modules = kmi.getInstalledModuleServices();
for (ModuleService moduleService : modules) {
for (String scriptConfigurationFilePath : moduleService.getModuleConfiguration().getScriptConfigurationFilePaths()) {
if (!StringUtils.isBlank(scriptConfigurationFilePath))
try {
configurators.add( this.generateConfigurator(resourceLoader, scriptConfigurationFilePath));
} catch (Exception e) {
throw new ServletException(e);
}
}
}
for (String configFile : HACK_ADDITIONAL_FILES) {
try {
String scriptConfigurationFilePath = classpathResourcePrefix + configFile;
configurators.add( this.generateConfigurator(resourceLoader, scriptConfigurationFilePath));
} catch (Exception e) {
throw new ServletException(e);
}
}
try
{
super.configureContainer(container, servletConfig);
StartupUtil.configure(container, configurators);
}
catch (IOException ex)
{
throw ex;
}
catch (Exception ex)
{
throw new ServletException(ex);
}
}
public Boolean getSpringBasedConfigPath() {
return springBasedConfigPath;
}
public void setSpringBasedConfigPath(Boolean springBasedConfigPath) {
this.springBasedConfigPath = springBasedConfigPath;
}
/**
* @see javax.servlet.GenericServlet#init()
*/
@Override
public void init() throws ServletException {
setSpringBasedConfigPath(new Boolean(this.getInitParameter("springpath")));
super.init();
}
}