Java tutorial
/******************************************************************************* * Copyright (c) 2009 Daniel Grout. * * GNU GENERAL PUBLIC LICENSE - Version 3 * * This file is part of Report Runner (http://code.google.com/p/reportrunner). * * Report Runner is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Report Runner 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Report Runner. If not, see <http://www.gnu.org/licenses/>. * * Module: SetupEditDataSource.java ******************************************************************************/ package binky.reportrunner.ui.actions.datasource; import java.util.LinkedList; import java.util.List; import javax.naming.Binding; import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingEnumeration; import javax.naming.NamingException; import org.apache.log4j.Logger; import org.springframework.security.access.prepost.PreAuthorize; import binky.reportrunner.data.RunnerDataSource; import binky.reportrunner.data.RunnerGroup; import binky.reportrunner.service.DatasourceService; import binky.reportrunner.service.GroupService; import binky.reportrunner.ui.actions.base.StandardRunnerAction; import com.opensymphony.xwork2.Preparable; public class SetupEditJNDIDataSource extends StandardRunnerAction implements Preparable { private static final long serialVersionUID = 1L; private String dataSourceName; private RunnerDataSource dataSource; private DatasourceService dataSourceService; private List<String> dataSourceGroups; private List<String> jndiNames; private static final Logger logger = Logger.getLogger(SetupEditJNDIDataSource.class); @Override @PreAuthorize("hasRole('ROLE_ADMIN')") public String execute() throws Exception { this.dataSourceGroups = new LinkedList<String>(); if ((dataSourceName != null) && (!dataSourceName.isEmpty())) { dataSource = dataSourceService.getDataSource(dataSourceName); if (dataSource != null) { for (RunnerGroup g : dataSource.getGroups()) { this.dataSourceGroups.add(g.getGroupName()); } } else { dataSource = new RunnerDataSource(); } } else { dataSource = new RunnerDataSource(); } populateJNDINames(); return SUCCESS; } private void populateJNDINames() throws NamingException { String ident = ""; Context ctx = (Context) new InitialContext().lookup("java:comp/env"); this.jndiNames = this.listJNDINames(ctx, ident); } //http://denistek.blogspot.com/2008/08/list-jndi-names.html private List<String> listJNDINames(Context ctx, String ident) throws NamingException { List<String> names = new LinkedList<String>(); String indent = ""; NamingEnumeration<Binding> list = ctx.listBindings(""); while (list.hasMore()) { Binding item = (Binding) list.next(); String className = item.getClassName(); String name = item.getName(); logger.debug(indent + className + " " + name); Object o = item.getObject(); if (o instanceof javax.naming.Context) { names.addAll(listJNDINames((Context) o, name)); } else { names.add(ident + "/" + name); } } return names; } @Override public void prepare() throws Exception { populateJNDINames(); this.groups = groupService.getAll(); } private List<RunnerGroup> groups; private GroupService groupService; public void setGroupService(GroupService groupService) { this.groupService = groupService; } public void setDataSourceName(String dataSourceName) { this.dataSourceName = dataSourceName; } public RunnerDataSource getDataSource() { return dataSource; } public List<String> getJndiNames() { return jndiNames; } public void setJndiNames(List<String> jndiNames) { this.jndiNames = jndiNames; } public List<RunnerGroup> getGroups() { return groups; } public void setGroups(List<RunnerGroup> groups) { this.groups = groups; } public List<String> getDataSourceGroups() { return dataSourceGroups; } public void setDataSourceGroups(List<String> dataSourceGroups) { this.dataSourceGroups = dataSourceGroups; } public DatasourceService getDataSourceService() { return dataSourceService; } public void setDataSourceService(DatasourceService dataSourceService) { this.dataSourceService = dataSourceService; } }