Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License") + you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package org.openmeetings.servlet.outputhandler; import java.io.IOException; import java.io.OutputStream; import java.util.Date; import java.util.Iterator; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.dom4j.Document; import org.dom4j.DocumentHelper; import org.dom4j.Element; import org.dom4j.io.OutputFormat; import org.dom4j.io.XMLWriter; import org.openmeetings.app.OpenmeetingsVariables; import org.openmeetings.app.data.basic.AuthLevelmanagement; import org.openmeetings.app.data.basic.Sessionmanagement; import org.openmeetings.app.data.user.Organisationmanagement; import org.openmeetings.app.data.user.Usermanagement; import org.openmeetings.app.data.user.dao.UsersDaoImpl; import org.openmeetings.app.persistence.beans.domain.Organisation; import org.openmeetings.app.persistence.beans.domain.Organisation_Users; import org.openmeetings.app.persistence.beans.user.Users; import org.openmeetings.app.remote.red5.ScopeApplicationAdapter; import org.openmeetings.utils.math.CalendarPatterns; import org.red5.logging.Red5LoggerFactory; import org.slf4j.Logger; import org.springframework.context.ApplicationContext; import org.springframework.web.context.support.WebApplicationContextUtils; /** * * @author sebastianwagner * */ public class Export extends HttpServlet { private static final long serialVersionUID = 8527093674786692472L; private static final Logger log = Red5LoggerFactory.getLogger(Export.class, OpenmeetingsVariables.webAppRootKey); public Sessionmanagement getSessionManagement() { try { if (ScopeApplicationAdapter.initComplete) { ApplicationContext context = WebApplicationContextUtils .getWebApplicationContext(getServletContext()); return (Sessionmanagement) context.getBean("sessionManagement"); } } catch (Exception err) { log.error("[getSessionManagement]", err); } return null; } public Usermanagement getUserManagement() { try { if (ScopeApplicationAdapter.initComplete) { ApplicationContext context = WebApplicationContextUtils .getWebApplicationContext(getServletContext()); return (Usermanagement) context.getBean("userManagement"); } } catch (Exception err) { log.error("[getUserManagement]", err); } return null; } public Organisationmanagement getOrganisationmanagement() { try { if (ScopeApplicationAdapter.initComplete) { ApplicationContext context = WebApplicationContextUtils .getWebApplicationContext(getServletContext()); return (Organisationmanagement) context.getBean("organisationmanagement"); } } catch (Exception err) { log.error("[getOrganisationmanagement]", err); } return null; } public UsersDaoImpl getUsersDao() { try { if (ScopeApplicationAdapter.initComplete) { ApplicationContext context = WebApplicationContextUtils .getWebApplicationContext(getServletContext()); return (UsersDaoImpl) context.getBean("usersDao"); } } catch (Exception err) { log.error("[getUsersDao]", err); } return null; } public AuthLevelmanagement getAuthLevelManagement() { try { if (ScopeApplicationAdapter.initComplete) { ApplicationContext context = WebApplicationContextUtils .getWebApplicationContext(getServletContext()); return (AuthLevelmanagement) context.getBean("authLevelManagement"); } } catch (Exception err) { log.error("[getAuthLevelManagement]", err); } return null; } /* * (non-Javadoc) * * @see * javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest * , javax.servlet.http.HttpServletResponse) */ @Override protected void service(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException { try { if (getUserManagement() == null || getSessionManagement() == null || getUsersDao() == null) { return; } String sid = httpServletRequest.getParameter("sid"); if (sid == null) { sid = "default"; } System.out.println("sid: " + sid); Long users_id = getSessionManagement().checkSession(sid); Long user_level = getUserManagement().getUserLevelByID(users_id); System.out.println("users_id: " + users_id); System.out.println("user_level: " + user_level); // if (user_level!=null && user_level > 0) { if (getAuthLevelManagement().checkUserLevel(user_level)) { String moduleName = httpServletRequest.getParameter("moduleName"); if (moduleName == null) { moduleName = "moduleName"; } System.out.println("moduleName: " + moduleName); if (moduleName.equals("users") || moduleName.equals("userorganisations")) { String organisation = httpServletRequest.getParameter("organisation"); if (organisation == null) { organisation = "0"; } Long organisation_id = Long.valueOf(organisation).longValue(); System.out.println("organisation_id: " + organisation_id); List<Users> uList = null; String downloadName = "users"; if (moduleName.equals("userorganisations")) { Organisation orga = getOrganisationmanagement().getOrganisationById(organisation_id); downloadName += "_" + orga.getName(); uList = getOrganisationmanagement().getUsersByOrganisationId(organisation_id); } else { uList = getUsersDao().getAllUsers(); } if (uList != null) { Document doc = this.createDocument(uList); httpServletResponse.reset(); httpServletResponse.resetBuffer(); OutputStream out = httpServletResponse.getOutputStream(); httpServletResponse.setContentType("APPLICATION/OCTET-STREAM"); httpServletResponse.setHeader("Content-Disposition", "attachment; filename=\"" + downloadName + ".xml\""); // httpServletResponse.setHeader("Content-Length", ""+ // rf.length()); this.serializetoXML(out, "UTF-8", doc); out.flush(); out.close(); } } } else { System.out.println("ERROR LangExport: not authorized FileDownload " + (new Date())); } } catch (Exception er) { log.error("ERROR ", er); System.out.println("Error exporting: " + er); er.printStackTrace(); } } public Document createDocument(List<Users> uList) throws Exception { Document document = DocumentHelper.createDocument(); document.setXMLEncoding("UTF-8"); document.addComment("###############################################\n" + "This File is auto-generated by the Backup Tool \n" + "you should use the BackupPanel to modify or change this file \n" + "see http://incubator.apache.org/openmeetings/Upgrade.html for Details \n" + "###############################################"); Element root = document.addElement("root"); Element users = root.addElement("users"); for (Iterator<Users> it = uList.iterator(); it.hasNext();) { Users u = it.next(); Element user = users.addElement("user"); user.addElement("age").setText(CalendarPatterns.getDateByMiliSeconds(u.getAge())); user.addElement("availible").setText(u.getAvailible().toString()); user.addElement("deleted").setText(u.getDeleted()); user.addElement("firstname").setText(u.getFirstname()); user.addElement("lastname").setText(u.getLastname()); user.addElement("login").setText(u.getLogin()); user.addElement("pass").setText(u.getPassword()); String pictureuri = u.getPictureuri(); if (pictureuri != null) user.addElement("pictureuri").setText(pictureuri); else user.addElement("pictureuri").setText(""); if (u.getLanguage_id() != null) user.addElement("language_id").setText(u.getLanguage_id().toString()); else user.addElement("language_id").setText(""); user.addElement("status").setText(u.getStatus().toString()); user.addElement("regdate").setText(CalendarPatterns.getDateWithTimeByMiliSeconds(u.getRegdate())); user.addElement("title_id").setText(u.getTitle_id().toString()); user.addElement("level_id").setText(u.getLevel_id().toString()); user.addElement("additionalname").setText(u.getAdresses().getAdditionalname()); user.addElement("comment").setText(u.getAdresses().getComment()); // A User can not have a deleted Adress, you cannot delete the // Adress of an User // String deleted = u.getAdresses().getDeleted() // Phone Number not done yet user.addElement("fax").setText(u.getAdresses().getFax()); user.addElement("state_id").setText(u.getAdresses().getStates().getState_id().toString()); user.addElement("street").setText(u.getAdresses().getStreet()); user.addElement("town").setText(u.getAdresses().getTown()); user.addElement("zip").setText(u.getAdresses().getZip()); // Email and Phone user.addElement("mail").setText(u.getAdresses().getEmail()); user.addElement("phone").setText(u.getAdresses().getPhone()); Element user_organisations = user.addElement("organisations"); // List<String> organisations = new LinkedList(); for (Iterator<Organisation_Users> iterObj = u.getOrganisation_users().iterator(); iterObj.hasNext();) { Organisation_Users orgUsers = iterObj.next(); user_organisations.addElement("organisation_id") .addText(orgUsers.getOrganisation().getOrganisation_id().toString()); } // Not need at the moment // Element user_groups = user.addElement("groups"); } return document; } public void serializetoXML(OutputStream out, String aEncodingScheme, Document doc) throws Exception { OutputFormat outformat = OutputFormat.createPrettyPrint(); outformat.setEncoding(aEncodingScheme); XMLWriter writer = new XMLWriter(out, outformat); writer.write(doc); writer.flush(); } }