Java tutorial
/* * 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.module.bc.document.web.struts; import java.io.ByteArrayOutputStream; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Locale; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang.StringUtils; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.kuali.kfs.fp.service.FiscalYearFunctionControlService; import org.kuali.kfs.module.bc.BCConstants; import org.kuali.kfs.module.bc.BCKeyConstants; import org.kuali.kfs.module.bc.document.service.BudgetRequestImportService; import org.kuali.kfs.sys.KFSConstants; import org.kuali.kfs.sys.KFSConstants.ReportGeneration; import org.kuali.kfs.sys.context.SpringContext; import org.kuali.rice.kim.api.identity.Person; import org.kuali.rice.kns.util.WebUtils; import org.kuali.rice.krad.util.GlobalVariables; import org.kuali.rice.krad.util.MessageMap; /** * Handles Budget Construction Import Requests */ public class BudgetConstructionRequestImportAction extends BudgetConstructionImportExportAction { private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger .getLogger(BudgetConstructionRequestImportAction.class); public ActionForward start(ActionMapping arg0, ActionForm arg1, HttpServletRequest arg2, HttpServletResponse arg3) throws Exception { return arg0.findForward("import_export"); } /** * Imports file * * @param mapping * @param form * @param request * @param response * @return * @throws Exception */ public ActionForward submit(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { BudgetConstructionRequestImportForm budgetConstructionImportForm = (BudgetConstructionRequestImportForm) form; BudgetRequestImportService budgetRequestImportService = SpringContext .getBean(BudgetRequestImportService.class); Integer budgetYear = budgetConstructionImportForm.getUniversityFiscalYear(); List<String> messageList = new ArrayList<String>(); SimpleDateFormat dateFormatter = new SimpleDateFormat("dd-MMM-yyyy ' ' HH:mm:ss", Locale.US); boolean isValid = validateFormData(budgetConstructionImportForm); if (!isValid) { return mapping.findForward(BCConstants.MAPPING_IMPORT_EXPORT); } Person user = GlobalVariables.getUserSession().getPerson(); String principalId = user.getPrincipalId(); Date startTime = new Date(); messageList.add("Import run started " + dateFormatter.format(startTime)); messageList.add(" "); messageList.add("Text file load phase - parsing"); List<String> parsingErrors = budgetRequestImportService.processImportFile( budgetConstructionImportForm.getFile().getInputStream(), principalId, getFieldSeparator(budgetConstructionImportForm), getTextFieldDelimiter(budgetConstructionImportForm), budgetConstructionImportForm.getFileType(), budgetYear); ByteArrayOutputStream baos = new ByteArrayOutputStream(); if (!parsingErrors.isEmpty()) { messageList.addAll(parsingErrors); messageList.add("Import run finished at " + dateFormatter.getCalendar().getTime().toString()); budgetRequestImportService.generatePdf(messageList, baos); WebUtils.saveMimeOutputStreamAsFile(response, ReportGeneration.PDF_MIME_TYPE, baos, BCConstants.REQUEST_IMPORT_OUTPUT_FILE); return null; } messageList.add("Text file load complete"); messageList.add(" "); messageList.add("Validate data phase"); List<String> dataValidationErrorList = budgetRequestImportService.validateData(budgetYear, principalId); if (!dataValidationErrorList.isEmpty()) { messageList.add("Errors found during data validation"); messageList.addAll(dataValidationErrorList); } messageList.add("Validate data complete"); messageList.add(" "); messageList.add("Update budget phase"); List<String> updateErrorMessages = budgetRequestImportService.loadBudget(user, budgetConstructionImportForm.getFileType(), budgetYear); messageList.addAll(updateErrorMessages); messageList.add("Update budget complete"); messageList.add(" "); Date endTime = new Date(); messageList.add("Import run finished at " + dateFormatter.format(endTime)); budgetRequestImportService.generatePdf(messageList, baos); WebUtils.saveMimeOutputStreamAsFile(response, ReportGeneration.PDF_MIME_TYPE, baos, BCConstants.REQUEST_IMPORT_OUTPUT_FILE); return null; } /** * * @see org.kuali.kfs.module.bc.document.web.struts.BudgetConstructionImportExportAction#validateFormData(org.kuali.kfs.module.bc.document.web.struts.BudgetConstructionImportExportForm) */ @Override public boolean validateFormData(BudgetConstructionImportExportForm form) { boolean isValid = super.validateFormData(form); BudgetConstructionRequestImportForm requestImportForm = (BudgetConstructionRequestImportForm) form; MessageMap errorMap = GlobalVariables.getMessageMap(); // can't create BC documents when in system view only mode // let the user know this up front if (!SpringContext.getBean(FiscalYearFunctionControlService.class) .isBudgetUpdateAllowed(requestImportForm.getUniversityFiscalYear())) { errorMap.putError(KFSConstants.GLOBAL_ERRORS, BCKeyConstants.MESSAGE_BUDGET_SYSTEM_VIEW_ONLY); isValid &= false; } if (requestImportForm.getFile() == null || requestImportForm.getFile().getFileSize() == 0) { errorMap.putError(KFSConstants.GLOBAL_ERRORS, BCKeyConstants.ERROR_FILE_IS_REQUIRED); isValid = false; } if (requestImportForm.getFile() != null && requestImportForm.getFile().getFileSize() == 0) { errorMap.putError(KFSConstants.GLOBAL_ERRORS, BCKeyConstants.ERROR_FILE_EMPTY); isValid = false; } if (requestImportForm.getFile() != null && (StringUtils.isBlank(requestImportForm.getFile().getFileName()))) { errorMap.putError(KFSConstants.GLOBAL_ERRORS, BCKeyConstants.ERROR_FILENAME_REQUIRED); isValid = false; } //file type validation if (StringUtils.isBlank(requestImportForm.getFileType())) { errorMap.putError(KFSConstants.GLOBAL_ERRORS, BCKeyConstants.ERROR_FILE_TYPE_IS_REQUIRED); isValid = false; } return isValid; } }