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 ro.nextreports.engine.exporter; import java.awt.Color; import java.io.IOException; import java.io.StringReader; import java.util.ArrayList; import java.util.List; import java.util.Map; import java.util.Set; import ro.nextreports.engine.ReleaseInfoAdapter; import ro.nextreports.engine.Report; import ro.nextreports.engine.ReportLayout; import ro.nextreports.engine.band.Band; import ro.nextreports.engine.band.BandElement; import ro.nextreports.engine.band.ExpressionBandElement; import ro.nextreports.engine.band.Hyperlink; import ro.nextreports.engine.band.HyperlinkBandElement; import ro.nextreports.engine.band.ImageBandElement; import ro.nextreports.engine.band.ImageColumnBandElement; import ro.nextreports.engine.band.Padding; import ro.nextreports.engine.band.PaperSize; import ro.nextreports.engine.band.ReportBandElement; import ro.nextreports.engine.band.VariableBandElement; import ro.nextreports.engine.exporter.util.StyleFormatConstants; import ro.nextreports.engine.exporter.util.variable.PageNoVariable; import ro.nextreports.engine.exporter.util.variable.Variable; import ro.nextreports.engine.exporter.util.variable.VariableFactory; import ro.nextreports.engine.queryexec.QueryException; import ro.nextreports.engine.util.PrefixSuffix; import ro.nextreports.engine.util.StringUtil; import com.lowagie.text.BadElementException; import com.lowagie.text.Document; import com.lowagie.text.DocumentException; import com.lowagie.text.Element; import com.lowagie.text.Font; import com.lowagie.text.FontFactory; import com.lowagie.text.FontFactoryImp; import com.lowagie.text.HeaderFooter; import com.lowagie.text.Phrase; import com.lowagie.text.Rectangle; import com.lowagie.text.Table; import com.lowagie.text.PageSize; import com.lowagie.text.Image; import com.lowagie.text.Anchor; import com.lowagie.text.html.simpleparser.HTMLWorker; import com.lowagie.text.html.simpleparser.StyleSheet; import com.lowagie.text.rtf.RtfWriter2; import com.lowagie.text.rtf.field.RtfPageNumber; import com.lowagie.text.rtf.headerfooter.RtfHeaderFooter; import com.lowagie.text.rtf.headerfooter.RtfHeaderFooterGroup; import com.lowagie.text.rtf.table.RtfBorder; import com.lowagie.text.rtf.table.RtfBorderGroup; import com.lowagie.text.rtf.table.RtfCell; /** * Created by IntelliJ IDEA. User: mihai.panaitescu Date: 24-Feb-2009 Time: * 11:46:10 */ public class RtfExporter extends ResultExporter { public RtfExporter(ExporterBean bean) { super(bean); } protected void initExport() throws QueryException { if (!bean.isSubreport()) { Padding margins = bean.getReportLayout().getPagePadding(); Rectangle rectangle; if (ReportLayout.CUSTOM.equals(bean.getReportLayout().getPageFormat())) { PaperSize customSize = bean.getReportLayout().getPaperSize(); rectangle = new Rectangle(customSize.getWidthPoints(), customSize.getHeightPoints()); } else { rectangle = PageSize.getRectangle(getPageFormat()); } document = new Document(rectangle, getPoints(margins.getLeft()), getPoints(margins.getRight()), getPoints(margins.getTop()), getPoints(margins.getBottom())); if (bean.getReportLayout().getOrientation() == LANDSCAPE) { document.setPageSize(rectangle.rotate()); } RtfWriter2 writer2 = RtfWriter2.getInstance(document, getOut()); } try { if (!bean.isSubreport()) { buildHeader(); buildFooter(); addMetaData(); document.open(); } table = buildRtfTable(PRINT_DOCUMENT); } catch (DocumentException e) { e.printStackTrace(); throw new QueryException(e); } } // Metadata methods must be called after establishing the document writer // and prior // to opening the document private void addMetaData() { document.addTitle(getDocumentTitle()); document.addAuthor(ReleaseInfoAdapter.getCompany()); document.addCreator("NextReports " + ReleaseInfoAdapter.getVersionNumber()); document.addSubject("Created by NextReports Designer" + ReleaseInfoAdapter.getVersionNumber()); document.addCreationDate(); document.addKeywords(ReleaseInfoAdapter.getHome()); } protected void finishExport() { if (!bean.isSubreport()) { try { if (table != null) { document.add(table); } } catch (DocumentException e) { e.printStackTrace(); } finally { table = null; document.close(); } } } protected void close() { if (!bean.isSubreport()) { document.close(); } } protected void flush() { } protected void flushNow() { } protected Set<CellElement> getIgnoredCells(Band band) { return getIgnoredCellElements(band); } protected void exportCell(String bandName, BandElement bandElement, Object value, int gridRow, int row, int column, int cols, int rowSpan, int colSpan, boolean isImage) { if (!bean.isSubreport()) { if (ReportLayout.PAGE_HEADER_BAND_NAME.equals(bandName)) { header.addCell(renderRtfCell(bandElement, value, gridRow, column, rowSpan, colSpan, isImage)); } else if (ReportLayout.PAGE_FOOTER_BAND_NAME.equals(bandName)) { footer.addCell(renderRtfCell(bandElement, value, gridRow, column, rowSpan, colSpan, isImage)); } else { table.addCell(renderRtfCell(bandElement, value, gridRow, column, rowSpan, colSpan, isImage)); } } else { table.addCell(renderRtfCell(bandElement, value, gridRow, column, rowSpan, colSpan, isImage)); } } protected void afterRowExport() { } protected String getNullElement() { return ""; } private int fragmentsize = 15000; private Document document; private Table table; private Table header; private Table footer; private RtfCell renderRtfCell(BandElement bandElement, Object value, int gridRow, int gridColumn, int rowSpan, int colSpan, boolean image) { Map<String, Object> style = buildCellStyleMap(bandElement, value, gridRow, gridColumn, colSpan); String stringValue; FontFactoryImp fact = new FontFactoryImp(); Font fnt; if (bandElement != null) { String fontName = (String) style.get(StyleFormatConstants.FONT_NAME_KEY); int size = ((Float) style.get(StyleFormatConstants.FONT_SIZE)).intValue(); fnt = getFont(fontName, size); } else { fnt = getFont(10); } RtfCell cell = null; boolean specialCell = false; if (image) { try { if (value == null) { cell = new RtfCell(new Phrase(IMAGE_NOT_FOUND)); } else { ImageBandElement ibe = (ImageBandElement) bandElement; byte[] imageBytes = getImage((String) value, ibe.getWidth(), ibe.getHeight()); cell = new RtfCell(Image.getInstance(imageBytes)); } } catch (Exception e) { cell = new RtfCell(IMAGE_NOT_LOADED); } specialCell = true; } else if (bandElement instanceof HyperlinkBandElement) { Hyperlink hyperlink = ((HyperlinkBandElement) bandElement).getHyperlink(); Anchor anchor = new Anchor(hyperlink.getText(), fnt); anchor.setReference(hyperlink.getUrl()); Phrase ph = new Phrase(); ph.add(anchor); try { cell = new RtfCell(ph); } catch (BadElementException e) { e.printStackTrace(); cell = new RtfCell(hyperlink.getText()); } specialCell = true; } else if (bandElement instanceof ReportBandElement) { Report report = ((ReportBandElement) bandElement).getReport(); ExporterBean eb = null; try { eb = getSubreportExporterBean(report); RtfExporter subExporter = new RtfExporter(eb); subExporter.export(); Table innerTable = subExporter.getTable(); cell = new RtfCell(innerTable); } catch (Exception e) { cell = new RtfCell(); e.printStackTrace(); } finally { if ((eb != null) && (eb.getResult() != null)) { eb.getResult().close(); } } specialCell = true; } else if (bandElement instanceof VariableBandElement) { VariableBandElement vbe = (VariableBandElement) bandElement; Variable var = VariableFactory.getVariable(vbe.getVariable()); if (var instanceof PageNoVariable) { cell = new RtfCell(); cell.add(new RtfPageNumber()); cell.setBorderWidth(0); specialCell = true; } } else if (bandElement instanceof ExpressionBandElement) { // special case pageNo inside an expression // bandName is not important here (it is used for groupRow // computation) PrefixSuffix pf = interpretPageNo(bandElement); if (pf != null) { updateFont(fnt, style); cell = new RtfCell(); if (!"".equals(pf.getPrefix())) { cell.add(new Phrase(pf.getPrefix(), fnt)); } cell.add(new RtfPageNumber(fnt)); if (!"".equals(pf.getSuffix())) { cell.add(new Phrase(pf.getSuffix(), fnt)); } specialCell = true; } } else if (bandElement instanceof ImageColumnBandElement) { try { String v = StringUtil.getValueAsString(value, null); if (StringUtil.BLOB.equals(v)) { cell = new RtfCell(new Phrase(StringUtil.BLOB)); } else { ImageColumnBandElement icbe = (ImageColumnBandElement) bandElement; byte[] imageD = StringUtil.decodeImage(v); byte[] imageBytes = getImage(imageD, icbe.getWidth(), icbe.getHeight()); cell = new RtfCell(Image.getInstance(imageBytes)); } } catch (Exception e) { cell = new RtfCell(IMAGE_NOT_LOADED); } specialCell = true; } if (!specialCell) { if (style.containsKey(StyleFormatConstants.PATTERN)) { stringValue = StringUtil.getValueAsString(value, (String) style.get(StyleFormatConstants.PATTERN), getReportLanguage()); } else { stringValue = StringUtil.getValueAsString(value, null, getReportLanguage()); } if (stringValue == null) { stringValue = ""; } Phrase ph; if (stringValue.startsWith("<html>")) { StringReader reader = new StringReader(stringValue); List<Element> elems = new ArrayList<Element>(); try { elems = HTMLWorker.parseToList(reader, new StyleSheet()); ph = new Phrase(); for (int i = 0; i < elems.size(); i++) { Element elem = (Element) elems.get(i); ph.add(elem); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); ph = new Phrase(stringValue, fnt); } } else { ph = new Phrase(stringValue, fnt); } try { cell = new RtfCell(ph); } catch (BadElementException e) { e.printStackTrace(); cell = new RtfCell(stringValue); } } cell.setVerticalAlignment(Element.ALIGN_MIDDLE); if (colSpan > 1) { cell.setColspan(colSpan); } if (rowSpan > 1) { cell.setRowspan(rowSpan); } setCellStyle(fnt, style, cell); return cell; } private void updateFont(Font fnt, Map<String, Object> style) { if (style != null) { if (style.containsKey(StyleFormatConstants.FONT_FAMILY_KEY)) { String val = (String) style.get(StyleFormatConstants.FONT_FAMILY_KEY); fnt.setFamily(val); } if (style.containsKey(StyleFormatConstants.FONT_SIZE)) { Float val = (Float) style.get(StyleFormatConstants.FONT_SIZE); fnt.setSize(val); } if (style.containsKey(StyleFormatConstants.FONT_COLOR)) { Color val = (Color) style.get(StyleFormatConstants.FONT_COLOR); fnt.setColor(val); } if (style.containsKey(StyleFormatConstants.FONT_STYLE_KEY)) { if (StyleFormatConstants.FONT_STYLE_NORMAL.equals(style.get(StyleFormatConstants.FONT_STYLE_KEY))) { fnt.setStyle(com.lowagie.text.Font.NORMAL); } if (StyleFormatConstants.FONT_STYLE_BOLD.equals(style.get(StyleFormatConstants.FONT_STYLE_KEY))) { fnt.setStyle(com.lowagie.text.Font.BOLD); } if (StyleFormatConstants.FONT_STYLE_ITALIC.equals(style.get(StyleFormatConstants.FONT_STYLE_KEY))) { fnt.setStyle(com.lowagie.text.Font.ITALIC); } if (StyleFormatConstants.FONT_STYLE_BOLDITALIC .equals(style.get(StyleFormatConstants.FONT_STYLE_KEY))) { fnt.setStyle(com.lowagie.text.Font.BOLDITALIC); } } } } private void setCellStyle(Font fnt, Map<String, Object> style, RtfCell cell) { if (style != null) { updateFont(fnt, style); if (style.containsKey(StyleFormatConstants.BACKGROUND_COLOR)) { Color val = (Color) style.get(StyleFormatConstants.BACKGROUND_COLOR); cell.setBackgroundColor(val); } if (style.containsKey(StyleFormatConstants.HORIZONTAL_ALIGN_KEY)) { if (StyleFormatConstants.HORIZONTAL_ALIGN_LEFT .equals(style.get(StyleFormatConstants.HORIZONTAL_ALIGN_KEY))) { cell.setHorizontalAlignment(Element.ALIGN_LEFT); } if (StyleFormatConstants.HORIZONTAL_ALIGN_RIGHT .equals(style.get(StyleFormatConstants.HORIZONTAL_ALIGN_KEY))) { cell.setHorizontalAlignment(Element.ALIGN_RIGHT); } if (StyleFormatConstants.HORIZONTAL_ALIGN_CENTER .equals(style.get(StyleFormatConstants.HORIZONTAL_ALIGN_KEY))) { cell.setHorizontalAlignment(Element.ALIGN_CENTER); } } if (style.containsKey(StyleFormatConstants.VERTICAL_ALIGN_KEY)) { if (StyleFormatConstants.VERTICAL_ALIGN_TOP .equals(style.get(StyleFormatConstants.VERTICAL_ALIGN_KEY))) { cell.setVerticalAlignment(Element.ALIGN_TOP); } if (StyleFormatConstants.VERTICAL_ALIGN_MIDDLE .equals(style.get(StyleFormatConstants.VERTICAL_ALIGN_KEY))) { cell.setVerticalAlignment(Element.ALIGN_MIDDLE); } if (StyleFormatConstants.VERTICAL_ALIGN_BOTTOM .equals(style.get(StyleFormatConstants.VERTICAL_ALIGN_KEY))) { cell.setVerticalAlignment(Element.ALIGN_BOTTOM); } } // if (style.containsKey(StyleFormatConstants.PADDING_LEFT)) { // Float val = (Float) style.get(StyleFormatConstants.PADDING_LEFT); // cell.setPaddingLeft(val); // } // if (style.containsKey(StyleFormatConstants.PADDING_RIGHT)) { // Float val = (Float) // style.get(StyleFormatConstants.PADDING_RIGHT); // cell.setPaddingRight(val); // } // if (style.containsKey(StyleFormatConstants.PADDING_TOP)) { // Float val = (Float) style.get(StyleFormatConstants.PADDING_TOP); // cell.setPaddingTop(val); // } // if (style.containsKey(StyleFormatConstants.PADDING_BOTTOM)) { // Float val = (Float) // style.get(StyleFormatConstants.PADDING_BOTTOM); // cell.setPaddingBottom(val); // } cell.setBorderWidth(0); Float val = Float.valueOf(1); RtfBorderGroup bg = new RtfBorderGroup(); if (style.containsKey(StyleFormatConstants.BORDER_LEFT)) { val = (Float) style.get(StyleFormatConstants.BORDER_LEFT); Color color = (Color) style.get(StyleFormatConstants.BORDER_LEFT_COLOR); bg.addBorder(Rectangle.LEFT, RtfBorder.BORDER_SINGLE, val, color); } if (style.containsKey(StyleFormatConstants.BORDER_RIGHT)) { val = (Float) style.get(StyleFormatConstants.BORDER_RIGHT); Color color = (Color) style.get(StyleFormatConstants.BORDER_RIGHT_COLOR); bg.addBorder(Rectangle.RIGHT, RtfBorder.BORDER_SINGLE, val, color); } if (style.containsKey(StyleFormatConstants.BORDER_TOP)) { val = (Float) style.get(StyleFormatConstants.BORDER_TOP); Color color = (Color) style.get(StyleFormatConstants.BORDER_TOP_COLOR); bg.addBorder(Rectangle.TOP, RtfBorder.BORDER_SINGLE, val, color); } if (style.containsKey(StyleFormatConstants.BORDER_BOTTOM)) { val = (Float) style.get(StyleFormatConstants.BORDER_BOTTOM); Color color = (Color) style.get(StyleFormatConstants.BORDER_BOTTOM_COLOR); bg.addBorder(Rectangle.BOTTOM, RtfBorder.BORDER_SINGLE, val, color); } cell.setBorders(bg); // cell.setNoWrap(true); // if (bandElement != null) { // if (bandElement.isWrapText()) { // cell.setNoWrap(false); // } // } } } private Font getFont(String fontName, int size) { return FontFactory.getFont(fontName, size); } private Font getFont(int size) { return FontFactory.getFont(FontFactory.TIMES, size); } // type : PRINT_DOCUMENT, PRINT_PAGE_HEADER, PRINT_PAGE_FOOTER private Table buildRtfTable(int type) throws DocumentException { List<Band> bands = new ArrayList<Band>(); if (type == 1) { bands.add(getReportLayout().getPageHeaderBand()); } else if (type == 2) { bands.add(getReportLayout().getPageFooterBand()); } else { bands = getReportLayout().getDocumentBands(); } int totalRows = 0; int totalColumns = 0; for (Band band : bands) { totalRows += band.getRowCount(); int cols = band.getColumnCount(); if (cols > totalColumns) { totalColumns = cols; } } // no page header or no page footer if (totalColumns == 0) { return null; } Table datatable = new Table(totalColumns); int[] headerwidths = new int[totalColumns]; // % int size = 100 / totalColumns; int totalWidth = 0; for (int i = 0; i < totalColumns; i++) { if (bean.getReportLayout().isUseSize()) { headerwidths[i] = bean.getReportLayout().getColumnsWidth().get(i); } else { headerwidths[i] = size; } totalWidth += headerwidths[i]; } if (bean.getReportLayout().isUseSize()) { float pixels = A4_PORTRAIT_PIXELS; if (bean.getReportLayout().getOrientation() == LANDSCAPE) { pixels = A4_LANDSCAPE_PIXELS; } float percentage = totalWidth * 100 / pixels; // do not allow to go outside an A4 frame if (percentage > 100) { percentage = 100; } if (!ReportLayout.CUSTOM.equals(bean.getReportLayout().getPageFormat())) { datatable.setWidth(percentage); } datatable.setWidths(headerwidths); } else { datatable.setWidth(100); } datatable.setPadding(2); if (type == PRINT_DOCUMENT) { writeHeader(datatable); } return datatable; } private void writeHeader(Table datatable) { if (bean.getReportLayout().isHeaderOnEveryPage()) { int headerNo = bean.getReportLayout().getHeaderBand().getRowCount(); if (headerNo > 0) { datatable.setLastHeaderRow(headerNo); } } } private void buildHeader() throws DocumentException, QueryException { header = buildRtfTable(PRINT_PAGE_HEADER); if (header == null) { return; } printPageHeaderBand(); HeaderFooter hf = new RtfHeaderFooter(header); document.setHeader(hf); } private void buildFooter() throws DocumentException, QueryException { footer = buildRtfTable(PRINT_PAGE_FOOTER); if (footer == null) { return; } printPageFooterBand(); RtfHeaderFooterGroup footerGroup = new RtfHeaderFooterGroup(); RtfHeaderFooter hf = new RtfHeaderFooter(footer); footerGroup.setHeaderFooter(hf, RtfHeaderFooter.DISPLAY_ALL_PAGES); document.setFooter(footerGroup); } protected void newPage() { if (!bean.isSubreport()) { try { document.add(table); document.newPage(); table.deleteAllRows(); if (bean.getReportLayout().isHeaderOnEveryPage()) { try { printHeaderBand(); } catch (QueryException e) { e.printStackTrace(); } } } catch (Exception e) { e.printStackTrace(); } } } private String getPageFormat() { String format = bean.getReportLayout().getPageFormat(); // not supported by RTF if (ReportLayout.A0.equals(format) || ReportLayout.A1.equals(format)) { format = ReportLayout.A2; } return format; } public Table getTable() { return table; } }