Wiki source code of Development-PDF Generation
Last modified by Pascal Robert on 2013/05/03 09:29
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6.1 | 1 | == Overview == |
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1.1 | 2 | |
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14.1 | 3 | You might want to also review the [[Returning a File>>doc:documentation.Home.How-tos.Development-Examples.Development-Examples-Return a File.WebHome]] example. |
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1.1 | 4 | |
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11.1 | 5 | (5-2-2013) JasperReports was added to Wonder last year. Kieran Kelleher has a wonderful (forgive the pun) presentation from 2010 Integrating and using JasperReports in your WebObjects App. Availabe in the WebObjects podcasts. |
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10.1 | 6 | |
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6.1 | 7 | == Zak Burke's Example == |
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1.1 | 8 | |
| 9 | It is important to add "-Djava.awt.headless=true" to the "Additional Arguments" list to suppress a console window running WOBootstrap that will try to pop up and then fail to close, which seems to prevent the thread from returning, which causes the app to hang. | ||
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3.1 | 11 | {{code}} |
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1.1 | 12 | |
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3.1 | 13 | private ByteArrayOutputStream pdf() |
| 14 | { | ||
| 15 | // binary container for PDF | ||
| 16 | ByteArrayOutputStream out = null; | ||
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6.1 | 17 | |
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3.1 | 18 | try |
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1.1 | 19 | { |
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3.1 | 20 | // assume these exist |
| 21 | String xsl, xml; | ||
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6.1 | 22 | |
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3.1 | 23 | TransformerFactory transformerFactory = TransformerFactory.newInstance(); |
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6.1 | 24 | |
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3.1 | 25 | // configure FOP, apache's XML->PDF transformer |
| 26 | Fop fop = new Fop(MimeConstants.MIME_PDF); | ||
| 27 | out = new ByteArrayOutputStream(); | ||
| 28 | fop.setOutputStream(out); | ||
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6.1 | 29 | |
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3.1 | 30 | // configure XSLT transformer |
| 31 | Source xsltSrc = new StreamSource(new StringReader(xsl)); | ||
| 32 | Transformer transformer = transformerFactory.newTransformer(xsltSrc); | ||
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6.1 | 33 | |
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3.1 | 34 | // pipe XSL transformation through to FOP |
| 35 | Result res = new SAXResult(fop.getDefaultHandler()); | ||
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6.1 | 36 | |
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3.1 | 37 | // grab XML input stream |
| 38 | Source src = new StreamSource(new StringReader(xml)); | ||
| 39 | |||
| 40 | // Start the transformation and rendering process | ||
| 41 | transformer.transform(src, res); | ||
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1.1 | 42 | } |
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3.1 | 43 | catch (Exception e) |
| 44 | { | ||
| 45 | // actually, catch the following, one by one: | ||
| 46 | // TransformerConfigurationException | ||
| 47 | // FOPException | ||
| 48 | // TransformerFactoryConfigurationError | ||
| 49 | // TransformerException | ||
| 50 | } | ||
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6.1 | 51 | |
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3.1 | 52 | return out; |
| 53 | } | ||
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1.1 | 54 | |
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3.1 | 55 | public void appendToResponse(WOResponse response, WOContext context) |
| 56 | { | ||
| 57 | ByteArrayOutputStream out = pdf(); | ||
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6.1 | 58 | |
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3.1 | 59 | // without data, show the PDF page, which is just an error message. |
| 60 | if (out == null) | ||
| 61 | super.appendToResponse(response, context); | ||
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6.1 | 62 | |
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3.1 | 63 | // assume this exists |
| 64 | String filename; | ||
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6.1 | 65 | |
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3.1 | 66 | response.setHeader("application/pdf", "Content-Type"); |
| 67 | response.setHeader("" + out.size() + "", "Content-Length"); | ||
| 68 | response.setHeader("attachment;filename=" + filename, "Content-Disposition"); | ||
| 69 | response.setContent(new NSData(out.toByteArray())); | ||
| 70 | } | ||
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1.1 | 71 | |
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3.1 | 72 | {{/code}} |
| 73 | |||
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6.1 | 74 | == Related Links == |
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1.1 | 75 | |
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12.1 | 76 | * [[FyTek Exe/DLL PDF Libraries>>url:http://www.fytek.com||shape="rect"]] |
| 77 | * [[Java PDF Libraries>>url:http://schmidt.devlib.org/java/libraries-pdf.html||shape="rect"]] | ||
| 78 | * [[Apache FOP>>url:http://xmlgraphics.apache.org/fop/||shape="rect"]] | ||
| 79 | * [[Deirdre Saoirse Moen's FOP Example>>url:http://deirdre.net/posts/2005/06/webobjects-and-pdf-generation/||shape="rect"]] | ||
| 80 | * [[JClass>>url:http://www.sitraka.com/software/jclass||shape="rect"]] | ||
| 81 | * [[Etymon PJ>>url:http://www.etymon.com/pj/||shape="rect"]] | ||
| 82 | * [[PDFLib>>url:http://www.pdflib.com/||shape="rect"]] | ||
| 83 | * [[PD4ML>>url:http://pd4ml.com/||shape="rect"]] | ||
| 84 | * [[iText>>url:http://www.lowagie.com/iText||shape="rect"]] | ||
| 85 | * [[Hugi Karlmenn's iText Example>>url:http://hugi.karlmenn.is/page/webobjects||shape="rect"]] | ||
| 86 | * [[XSL:FO Examples>>url:http://www.dpawson.co.uk/xsl/sect3/||shape="rect"]] | ||
| 87 | * [[ReportMill>>url:http://www.reportmill.com/product/||shape="rect"]] |