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.cam.report; import java.io.File; import java.io.FileOutputStream; import java.text.SimpleDateFormat; import java.util.Date; import java.util.List; import org.kuali.kfs.module.cam.CamsConstants; import org.kuali.kfs.module.cam.CamsKeyConstants; import org.kuali.kfs.sys.KFSConstants; import org.kuali.kfs.sys.context.SpringContext; import org.kuali.rice.core.api.config.property.ConfigurationService; import org.kuali.rice.core.api.datetime.DateTimeService; import com.lowagie.text.Cell; import com.lowagie.text.Chunk; import com.lowagie.text.Document; import com.lowagie.text.DocumentException; import com.lowagie.text.Element; import com.lowagie.text.ExceptionConverter; import com.lowagie.text.Font; import com.lowagie.text.FontFactory; import com.lowagie.text.Paragraph; import com.lowagie.text.Phrase; import com.lowagie.text.Rectangle; import com.lowagie.text.Table; import com.lowagie.text.pdf.PdfPCell; import com.lowagie.text.pdf.PdfPTable; import com.lowagie.text.pdf.PdfPageEventHelper; import com.lowagie.text.pdf.PdfWriter; public class DepreciationReport { private static org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(DepreciationReport.class); private int pageNumber = 0; private int line = 0; private int linesPerPage = 28; private Document document; private PdfWriter writer; /** * This method creates the report file and invokes the methods that write the data * * @param reportLog * @param errorMsg */ public void generateReport(List<String[]> reportLog, String errorMsg, String sDepreciationDate) { try { DateTimeService dateTimeService = SpringContext.getBean(DateTimeService.class); LOG.debug("createReport() started"); this.document = new Document(); String destinationDirectory = SpringContext.getBean(ConfigurationService.class) .getPropertyValueAsString(KFSConstants.REPORTS_DIRECTORY_KEY); SimpleDateFormat sdf = new SimpleDateFormat(CamsConstants.DateFormats.YEAR_MONTH_DAY_NO_DELIMITER + "_" + CamsConstants.DateFormats.MILITARY_TIME_NO_DELIMITER); String filename = destinationDirectory + File.separator + "cam" + File.separator + CamsConstants.Report.FILE_PREFIX + "_" + CamsConstants.Depreciation.REPORT_FILE_NAME + "_" + sdf.format(dateTimeService.getCurrentDate()) + "." + CamsConstants.Report.REPORT_EXTENSION; Font headerFont = FontFactory.getFont(FontFactory.HELVETICA, 12, Font.NORMAL); PageHelper helper = new PageHelper(); helper.runDate = dateTimeService.getCurrentDate(); helper.headerFont = headerFont; helper.title = CamsConstants.Depreciation.DEPRECIATION_REPORT_TITLE; writer = PdfWriter.getInstance(this.document, new FileOutputStream(filename)); writer.setPageEvent(helper); this.document.open(); // Generate body of document. this.generateReportLogBody(reportLog); this.generateReportErrorLog(errorMsg); } catch (Exception e) { throw new RuntimeException( "DepreciationReport.generateReport(List<String[]> reportLog, List<String> errorLog) - Error on report generation: " + e.getMessage()); } finally { if ((this.document != null) && this.document.isOpen()) { this.document.close(); } } } /** * This method adds the log lines into the report * * @param reportLog */ private void generateReportLogBody(List<String[]> reportLog) { try { Font font = FontFactory.getFont(FontFactory.HELVETICA, 9, Font.NORMAL); int columnwidths[]; columnwidths = new int[] { 40, 15 }; Table aTable = new Table(2, linesPerPage); int rowsWritten = 0; for (String[] columns : reportLog) { if (pageNumber == 0 || line >= linesPerPage) { if (pageNumber > 0) { this.document.add(aTable); } int elementsLeft = reportLog.size() - rowsWritten; int rowsNeeded = (elementsLeft >= linesPerPage ? linesPerPage : elementsLeft); this.document.newPage(); this.generateColumnHeaders(); aTable = new Table(2, rowsNeeded); // 12 columns, 11 rows. aTable.setAutoFillEmptyCells(true); aTable.setPadding(3); aTable.setWidths(columnwidths); aTable.setWidth(100); aTable.setBorder(Rectangle.NO_BORDER); line = 0; pageNumber++; } rowsWritten++; Cell cell; cell = new Cell(new Phrase(columns[0], font)); cell.setHorizontalAlignment(Element.ALIGN_LEFT); cell.setVerticalAlignment(Element.ALIGN_MIDDLE); aTable.addCell(cell); cell = new Cell(new Phrase(columns[1], font)); cell.setHorizontalAlignment(Element.ALIGN_RIGHT); cell.setVerticalAlignment(Element.ALIGN_MIDDLE); aTable.addCell(cell); line++; } this.document.add(aTable); } catch (DocumentException de) { throw new RuntimeException( "DepreciationReport.generateReportLogBody(List<String[]> reportLog) - error: " + de.getMessage()); } } /** * This method adds any error to the report * * @param errorMsg */ private void generateReportErrorLog(String errorMsg) { try { Font font = FontFactory.getFont(FontFactory.HELVETICA, 9, Font.NORMAL); Paragraph p1 = new Paragraph(); int rowsWritten = 0; if (!errorMsg.equals("")) { this.generateErrorColumnHeaders(); p1 = new Paragraph(new Chunk(errorMsg, font)); this.document.add(p1); line++; } } catch (Exception de) { throw new RuntimeException( "DepreciationReport.generateReportErrorLog(List<String> reportLog) - Report Generation Failed: " + de.getMessage()); } } /** * This method creates a report group for the error message on the report * * @throws DocumentException */ private void generateErrorColumnHeaders() throws DocumentException { try { int headerwidths[] = { 60 }; Table aTable = new Table(1, 1); // 2 columns, 1 rows. aTable.setAutoFillEmptyCells(true); aTable.setPadding(3); aTable.setWidths(headerwidths); aTable.setWidth(100); Cell cell; Font font = FontFactory.getFont(FontFactory.HELVETICA, 9, Font.NORMAL); cell = new Cell(new Phrase("Error(s)", font)); cell.setHorizontalAlignment(Element.ALIGN_CENTER); cell.setVerticalAlignment(Element.ALIGN_MIDDLE); cell.setGrayFill(0.9f); aTable.addCell(cell); this.document.add(aTable); } catch (Exception e) { throw new RuntimeException( "DepreciationReport.generateErrorColumnHeaders() - Error: " + e.getMessage()); } } /** * This method inserts the depreciation date on the report * * @param sDepreciationDate private void generateDepreciationDateLabel(String sDepreciationDate) { try { int headerwidths[] = { * 100 }; Table aTable = new Table(1, 1); // 1 columns, 1 rows. aTable.setAutoFillEmptyCells(true); aTable.setPadding(3); * aTable.setWidths(headerwidths); aTable.setWidth(100); aTable.setBorder(0); Cell cell; Font font = * FontFactory.getFont(FontFactory.HELVETICA, 11, Font.NORMAL); cell = new Cell(new Phrase("Depreciation Date: * "+sDepreciationDate, font)); cell.setHorizontalAlignment(Element.ALIGN_CENTER); * cell.setVerticalAlignment(Element.ALIGN_CENTER); cell.setBorder(0); aTable.addCell(cell); this.document.add(aTable); } * catch (Exception e) { throw new RuntimeException("DepreciationReport.generateDepreciationDateLabel() - Error: " + * e.getMessage()); } } */ /** * This method creates the headers for the report statistics */ private void generateColumnHeaders() { try { int headerwidths[] = { 40, 15 }; Table aTable = new Table(2, 1); // 2 columns, 1 rows. aTable.setAutoFillEmptyCells(true); aTable.setPadding(3); aTable.setWidths(headerwidths); aTable.setWidth(100); Cell cell; Font font = FontFactory.getFont(FontFactory.HELVETICA, 9, Font.NORMAL); cell = new Cell(new Phrase(SpringContext.getBean(ConfigurationService.class).getPropertyValueAsString( CamsKeyConstants.Depreciation.MSG_REPORT_DEPRECIATION_HEADING1), font)); cell.setHorizontalAlignment(Element.ALIGN_CENTER); cell.setVerticalAlignment(Element.ALIGN_MIDDLE); cell.setGrayFill(0.9f); aTable.addCell(cell); cell = new Cell(new Phrase(SpringContext.getBean(ConfigurationService.class).getPropertyValueAsString( CamsKeyConstants.Depreciation.MSG_REPORT_DEPRECIATION_HEADING2), font)); cell.setHorizontalAlignment(Element.ALIGN_CENTER); cell.setVerticalAlignment(Element.ALIGN_MIDDLE); cell.setGrayFill(0.9f); aTable.addCell(cell); this.document.add(aTable); } catch (Exception e) { throw new RuntimeException("DepreciationReport.generateColumnHeaders() - Error: " + e.getMessage()); } } /** * An inner class to help set up the PDF that is written */ class PageHelper extends PdfPageEventHelper { public Date runDate; public Font headerFont; public String title; /** * Writes the footer on the last page * * @see com.lowagie.text.pdf.PdfPageEventHelper#onEndPage(com.lowagie.text.pdf.PdfWriter, com.lowagie.text.Document) */ public void onEndPage(PdfWriter writer, Document document) { try { Font titleFont = FontFactory.getFont(FontFactory.HELVETICA, 12, Font.NORMAL); Font font = FontFactory.getFont(FontFactory.HELVETICA, 8, Font.NORMAL); Rectangle page = document.getPageSize(); PdfPTable head = new PdfPTable(3); int[] widths = { 15, 70, 15 }; head.setWidths(widths); SimpleDateFormat sdf = new SimpleDateFormat( CamsConstants.DateFormats.MONTH_DAY_YEAR + " " + CamsConstants.DateFormats.MILITARY_TIME); PdfPCell cell = new PdfPCell(new Phrase(sdf.format(runDate), font)); cell.setBorder(Rectangle.NO_BORDER); head.addCell(cell); cell = new PdfPCell(new Phrase(title, titleFont)); cell.setBorder(Rectangle.NO_BORDER); cell.setHorizontalAlignment(PdfPCell.ALIGN_CENTER); head.addCell(cell); cell = new PdfPCell(new Phrase("Page: " + new Integer(writer.getPageNumber()), font)); cell.setBorder(Rectangle.NO_BORDER); cell.setHorizontalAlignment(PdfPCell.ALIGN_RIGHT); head.addCell(cell); head.setTotalWidth(page.width() - document.leftMargin() - document.rightMargin()); head.writeSelectedRows(0, -1, document.leftMargin(), page.height() - document.topMargin() + head.getTotalHeight(), writer.getDirectContent()); } catch (Exception e) { throw new ExceptionConverter(e); } } } }