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.purap.util; import java.sql.Date; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import org.apache.commons.lang.StringUtils; import org.apache.log4j.Logger; import org.kuali.kfs.module.purap.PurapConstants; import org.kuali.kfs.sys.context.SpringContext; import org.kuali.rice.core.api.datetime.DateTimeService; public class ElectronicInvoiceUtils { private final static Logger LOG = Logger.getLogger(ElectronicInvoiceUtils.class); public static Date getDate(String invoiceDateString) { boolean formatInvalid = true; String formattedDateString = ""; String stringToParse = null; if (StringUtils.isNotEmpty(invoiceDateString)) { String dateToConvert = null; // get a copy of given date with 0's for all numbers to check format formattedDateString = invoiceDateString.replaceAll("\\d", "0"); if (PurApDateFormatUtils.getFormattingString(PurapConstants.NamedDateFormats.CXML_DATE_FORMAT) .equals(formattedDateString)) { // Date is in 0000-00-00 format formatInvalid = false; stringToParse = invoiceDateString; } else if (PurApDateFormatUtils.getFormattingString(PurapConstants.NamedDateFormats.KUALI_DATE_FORMAT) .equals(formattedDateString)) { try { java.util.Date javaDate = SpringContext.getBean(DateTimeService.class) .convertToDate(invoiceDateString); return org.kuali.kfs.sys.util.KfsDateUtils.convertToSqlDate(javaDate); } catch (ParseException e) { return null; } } else if (PurApDateFormatUtils.getFormattingString(PurapConstants.NamedDateFormats.CXML_DATE_FORMAT) .length() != formattedDateString.length()) { // strings are not the same length... must parse down given string from cXML for validation formattedDateString = formattedDateString.substring(0, PurApDateFormatUtils .getFormattingString(PurapConstants.NamedDateFormats.CXML_DATE_FORMAT).length()); // strings should now be same length if (PurApDateFormatUtils.getFormattingString(PurapConstants.NamedDateFormats.CXML_DATE_FORMAT) .equals(formattedDateString)) { // if strings are equal we can process date formatInvalid = false; stringToParse = invoiceDateString.substring(0, PurApDateFormatUtils .getFormattingString(PurapConstants.NamedDateFormats.CXML_DATE_FORMAT).length()); } else { // strings are same size and both only use 0 characters so date is invalid } } else { /* * strings are of same length but are not equal this can only occur if date separators are invalid so we have an * invalid format */ } } if (formatInvalid) { return null; } else { // try to parse date SimpleDateFormat sdf = PurApDateFormatUtils .getSimpleDateFormat(PurapConstants.NamedDateFormats.CXML_SIMPLE_DATE_FORMAT); try { return org.kuali.kfs.sys.util.KfsDateUtils.convertToSqlDate(sdf.parse(stringToParse)); } catch (ParseException e) { return null; } } } public static String getDateDisplayText(java.util.Date date) { Calendar c = Calendar.getInstance(); c.setTime(date); // we add one to the month below because January = 0, February = 1, March = 2, and so on String monthPart = (c.get(Calendar.MONTH) + 1) + ""; String dayPart = c.get(Calendar.DATE) + ""; if (monthPart.length() == 1) { monthPart = "0" + monthPart; } if (dayPart.length() == 1) { dayPart = "0" + dayPart; } String useDate = monthPart + "/" + dayPart + "/" + c.get(Calendar.YEAR); String actualDate = (date != null) ? date.toString() : "empty given date"; return useDate; } public static String stripSplChars(String data) { if (data != null) { StringBuffer result = new StringBuffer(); for (int i = 0; i < data.length(); i++) { if (Character.isLetterOrDigit(data.charAt(i))) { result.append(data.charAt(i)); } } return result.toString(); } else { return null; } } }