Java tutorial
/******************************************************************************* * Copyright 2014 Federal Chancellery Austria * MOA-ID has been developed in a cooperation between BRZ, the Federal * Chancellery Austria - ICT staff unit, and Graz University of Technology. * * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by * the European Commission - subsequent versions of the EUPL (the "Licence"); * You may not use this work except in compliance with the Licence. * You may obtain a copy of the Licence at: * http://www.osor.eu/eupl/ * * Unless required by applicable law or agreed to in writing, software * distributed under the Licence is distributed on an "AS IS" basis, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the Licence for the specific language governing permissions and * limitations under the Licence. * * This product combines work with different licenses. See the "NOTICE" text * file for details on the various modules and licenses. * The "NOTICE" text file is part of the distribution. Any derivative works * that you distribute must include a readable copy of the "NOTICE" text file. *******************************************************************************/ package at.gv.egovernment.moa.id.configuration.struts.action; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.io.StringWriter; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import javax.xml.bind.JAXBContext; import javax.xml.bind.JAXBException; import javax.xml.bind.Marshaller; import javax.xml.bind.Unmarshaller; import org.apache.commons.io.IOUtils; import org.apache.log4j.Logger; import org.apache.struts2.interceptor.ServletRequestAware; import org.apache.struts2.interceptor.ServletResponseAware; import at.gv.egovernment.moa.id.commons.db.ConfigurationDBRead; import at.gv.egovernment.moa.id.commons.db.ConfigurationDBUtils; import at.gv.egovernment.moa.id.commons.db.dao.config.MOAIDConfiguration; import at.gv.egovernment.moa.id.commons.db.dao.config.OnlineApplication; import at.gv.egovernment.moa.id.commons.db.ex.MOADatabaseException; import at.gv.egovernment.moa.id.config.ConfigurationException; import at.gv.egovernment.moa.id.config.legacy.BuildFromLegacyConfig; import at.gv.egovernment.moa.id.configuration.Constants; import at.gv.egovernment.moa.id.configuration.auth.AuthenticatedUser; import at.gv.egovernment.moa.id.configuration.config.ConfigurationProvider; import at.gv.egovernment.moa.id.configuration.exception.BasicActionException; import at.gv.egovernment.moa.id.configuration.helper.LanguageHelper; import at.gv.egovernment.moa.id.util.Random; import com.opensymphony.xwork2.ActionSupport; public class ImportExportAction extends BasicAction { private static final Logger log = Logger.getLogger(ImportExportAction.class); private static final long serialVersionUID = 1L; private String formID; private File fileUpload = null; private String fileUploadContentType = null; private String fileUploadFileName = null; private InputStream fileInputStream; public String init() { try { populateBasicInformations(); } catch (BasicActionException e) { return Constants.STRUTS_ERROR; } if (authUser.isAdmin()) { formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); return Constants.STRUTS_SUCCESS; } else { log.info("No access to Import/Export for User with ID" + authUser.getUserID()); addActionError(LanguageHelper.getErrorString("errors.notallowed", request)); return Constants.STRUTS_NOTALLOWED; } } public String importLegacyConfig() { try { populateBasicInformations(); } catch (BasicActionException e) { return Constants.STRUTS_ERROR; } Object formidobj = session.getAttribute(Constants.SESSION_FORMID); if (formidobj != null && formidobj instanceof String) { String formid = (String) formidobj; if (!formid.equals(formID)) { log.warn("FormIDs does not match. Some suspect Form is received from user " + authUser.getFamilyName() + authUser.getGivenName() + authUser.getUserID()); return Constants.STRUTS_ERROR; } } else { log.warn("FormIDs does not match. Some suspect Form is received from user " + authUser.getFamilyName() + authUser.getGivenName() + authUser.getUserID()); return Constants.STRUTS_ERROR; } session.setAttribute(Constants.SESSION_FORMID, null); if (authUser.isAdmin()) { //load legacy config if it is configured if (fileUpload == null) { addActionError(LanguageHelper.getErrorString("errors.importexport.nofile", request)); formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); return Constants.STRUTS_ERROR_VALIDATION; } try { MOAIDConfiguration moaidconfig = ConfigurationDBRead.getMOAIDConfiguration(); MOAIDConfiguration moaconfig; try { log.warn("WARNING! The legacy import deletes the hole old config"); String rootConfigFileDir = ConfigurationProvider.getInstance().getConfigRootDir(); moaconfig = BuildFromLegacyConfig.build(fileUpload, rootConfigFileDir, moaidconfig); } catch (ConfigurationException e) { log.info("Legacy configuration has an Import Error", e); addActionError(LanguageHelper.getErrorString("errors.importexport.legacyimport", new Object[] { e.getMessage() }, request)); ConfigurationDBUtils.closeSession(); formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); return Constants.STRUTS_ERROR_VALIDATION; } catch (at.gv.egovernment.moa.id.configuration.exception.ConfigurationException e) { ConfigurationDBUtils.closeSession(); formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); return Constants.STRUTS_ERROR_VALIDATION; } //check if XML config should be use log.warn( "WARNING! MOA-ID 2.0 is started with XML configuration. This setup overstrike the actual configuration in the Database!"); if (moaidconfig != null) ConfigurationDBUtils.delete(moaidconfig); List<OnlineApplication> oas = ConfigurationDBRead.getAllOnlineApplications(); if (oas != null && oas.size() > 0) { for (OnlineApplication oa : oas) ConfigurationDBUtils.delete(oa); } oas = moaconfig.getOnlineApplication(); for (OnlineApplication oa : oas) ConfigurationDBUtils.save(oa); moaconfig.setOnlineApplication(null); ConfigurationDBUtils.save(moaconfig); } catch (MOADatabaseException e) { log.warn("General MOA-ID config can not be stored in Database"); addActionError(e.getMessage()); formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); return Constants.STRUTS_ERROR_VALIDATION; } finally { ConfigurationDBUtils.closeSession(); } //set new formID formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); log.info("Legacy Configuration load is completed."); addActionMessage(LanguageHelper.getGUIString("webpages.inportexport.success", request)); return Constants.STRUTS_SUCCESS; } else { log.info("No access to Import/Export for User with ID" + authUser.getUserID()); addActionError(LanguageHelper.getErrorString("errors.notallowed", request)); return Constants.STRUTS_NOTALLOWED; } } public String downloadXMLConfig() { try { populateBasicInformations(); } catch (BasicActionException e) { return Constants.STRUTS_ERROR; } Object formidobj = session.getAttribute(Constants.SESSION_FORMID); if (formidobj != null && formidobj instanceof String) { String formid = (String) formidobj; if (!formid.equals(formID)) { log.warn("FormIDs does not match. Some suspect Form is received from user " + authUser.getFamilyName() + authUser.getGivenName() + authUser.getUserID()); return Constants.STRUTS_ERROR; } } else { log.warn("FormIDs does not match. Some suspect Form is received from user " + authUser.getFamilyName() + authUser.getGivenName() + authUser.getUserID()); return Constants.STRUTS_ERROR; } session.setAttribute(Constants.SESSION_FORMID, null); if (authUser.isAdmin()) { log.info("Write MOA-ID 2.x xml config"); JAXBContext jc; try { jc = JAXBContext.newInstance("at.gv.egovernment.moa.id.commons.db.dao.config"); Marshaller m = jc.createMarshaller(); m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); // File test = new File(xmlconfigout); // m.marshal(moaidconfig, test); MOAIDConfiguration moaidconfig = ConfigurationDBRead.getMOAIDConfiguration(); if (moaidconfig == null) { log.info("No MOA-ID 2.x configruation available"); addActionError(LanguageHelper.getErrorString("errors.importexport.export.noconfig", request)); formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); return Constants.STRUTS_ERROR_VALIDATION; } List<OnlineApplication> oaconfigs = ConfigurationDBRead.getAllOnlineApplications(); moaidconfig.setOnlineApplication(oaconfigs); StringWriter writer = new StringWriter(); m.marshal(moaidconfig, writer); fileInputStream = IOUtils.toInputStream(writer.toString(), "UTF-8"); } catch (JAXBException e) { log.info("MOA-ID 2.x configruation could not be exported into a XML file.", e); addActionError(LanguageHelper.getErrorString("errors.importexport.export", new Object[] { e.getMessage() }, request)); formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); return Constants.STRUTS_ERROR_VALIDATION; } catch (IOException e) { log.info("MOA-ID 2.x configruation could not be exported into a XML file.", e); addActionError(LanguageHelper.getErrorString("errors.importexport.export", new Object[] { e.getMessage() }, request)); formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); return Constants.STRUTS_ERROR_VALIDATION; } finally { ConfigurationDBUtils.closeSession(); } //set new formID formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); return Constants.STRUTS_SUCCESS; } else { log.info("No access to Import/Export for User with ID" + authUser.getUserID()); addActionError(LanguageHelper.getErrorString("errors.notallowed", request)); return Constants.STRUTS_NOTALLOWED; } } public String importXMLConfig() { try { populateBasicInformations(); } catch (BasicActionException e) { return Constants.STRUTS_ERROR; } Object formidobj = session.getAttribute(Constants.SESSION_FORMID); if (formidobj != null && formidobj instanceof String) { String formid = (String) formidobj; if (!formid.equals(formID)) { log.warn("FormIDs does not match. Some suspect Form is received from user " + authUser.getFamilyName() + authUser.getGivenName() + authUser.getUserID()); return Constants.STRUTS_ERROR; } } else { log.warn("FormIDs does not match. Some suspect Form is received from user " + authUser.getFamilyName() + authUser.getGivenName() + authUser.getUserID()); return Constants.STRUTS_ERROR; } session.setAttribute(Constants.SESSION_FORMID, null); if (authUser.isAdmin()) { if (fileUpload == null) { addActionError(LanguageHelper.getErrorString("errors.importexport.nofile", request)); formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); return Constants.STRUTS_ERROR_VALIDATION; } log.info("Load configuration from MOA-ID 2.x XML configuration"); try { JAXBContext jc = JAXBContext.newInstance("at.gv.egovernment.moa.id.commons.db.dao.config"); Unmarshaller m = jc.createUnmarshaller(); MOAIDConfiguration moaconfig = (MOAIDConfiguration) m.unmarshal(fileUpload); log.warn("WARNING! The XML import deletes the hole old config"); List<OnlineApplication> oas = ConfigurationDBRead.getAllOnlineApplications(); if (oas != null && oas.size() > 0) { for (OnlineApplication oa : oas) ConfigurationDBUtils.delete(oa); } MOAIDConfiguration moaidconfig = ConfigurationDBRead.getMOAIDConfiguration(); if (moaidconfig != null) ConfigurationDBUtils.delete(moaidconfig); List<OnlineApplication> importoas = moaconfig.getOnlineApplication(); for (OnlineApplication importoa : importoas) { ConfigurationDBUtils.saveOrUpdate(importoa); } moaconfig.setOnlineApplication(null); ConfigurationDBUtils.saveOrUpdate(moaconfig); } catch (Exception e) { log.warn("MOA-ID XML configuration can not be loaded from File.", e); addActionError(LanguageHelper.getErrorString("errors.importexport.import", new Object[] { e.getMessage() }, request)); formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); return Constants.STRUTS_ERROR_VALIDATION; } finally { ConfigurationDBUtils.closeSession(); } //set new formID formID = Random.nextRandom(); session.setAttribute(Constants.SESSION_FORMID, formID); log.info("XML Configuration load is completed."); addActionMessage(LanguageHelper.getGUIString("webpages.inportexport.success", request)); return Constants.STRUTS_SUCCESS; } else { log.info("No access to Import/Export for User with ID" + authUser.getUserID()); addActionError(LanguageHelper.getErrorString("errors.notallowed", request)); return Constants.STRUTS_NOTALLOWED; } } /** * @return the fileUpload */ public File getFileUpload() { return fileUpload; } /** * @param fileUpload the fileUpload to set */ public void setFileUpload(File fileUpload) { this.fileUpload = fileUpload; } /** * @return the fileUploadContentType */ public String getFileUploadContentType() { return fileUploadContentType; } /** * @param fileUploadContentType the fileUploadContentType to set */ public void setFileUploadContentType(String fileUploadContentType) { this.fileUploadContentType = fileUploadContentType; } /** * @return the fileUploadFileName */ public String getFileUploadFileName() { return fileUploadFileName; } /** * @param fileUploadFileName the fileUploadFileName to set */ public void setFileUploadFileName(String fileUploadFileName) { this.fileUploadFileName = fileUploadFileName; } public InputStream getFileInputStream() { return fileInputStream; } /** * @return the formID */ public String getFormID() { return formID; } /** * @param formID the formID to set */ public void setFormID(String formID) { this.formID = formID; } }