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Apache Poi Recipes

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Paolo Mottadelli
Paolo Mottadelli

This document is a presentation about Apache POI given by Paolo Mottadelli at ApacheCon US 2009 in Oakland. It discusses POI modules for reading and writing Office file formats like Excel, Word and PowerPoint. It also covers topics like common HSSF and XSSF access in POI, OpenXML package concepts, text extraction, simple tasks in Excel and Word, formula evaluation, and use cases for content management systems, financial forecasting and document import.

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Apache POI Recipes Paolo Mottadelli - ApacheCon Oakland 2009 http://chromasia.com Thursday, November 5, 2009
paolo@apache.org my to-do list - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org POI @ Content Tech ✴ Document to application (and back) ✴ Publish data ✴ Build a doc from your content ✴ Know your documents ✴ Extract text ✴ Extract content - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009 1 A-B-C
paolo@apache.org POI modules (1): OLE2 ✴ POIFS: reading/writing Office Documents ✴ HSSF r/w Excel Spreadsheets ✴ HWPF r/w Word Docs ✴ HSLF r/w PowerPoint Docs ✴ HPSF r/w property sets - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org POI modules (2): OOXML ✴ XSSF: r/w OXML Excel ✴ XWPF: r/w OXML Word ✴ XSLF: r/w OXML PowerPoint - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
POI 3.5 http://chromasia.com Thursday, November 5, 2009
paolo@apache.org OOXML dev status ✴ XSSF: Final in POI-3.5 ✴ XWPF: Draft (basic features) ✴ XSLF: Not covered (only text ext.) - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org HSSF & XSSF ✴ Common user model interface ✴ User model based on existing HSSF ✴ Using OpenXML4J and SAX - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009 2 Same recipe, different flavours
paolo@apache.org Common H/XSSF access ✴ org.apache.poi.ss.usermodel - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Upgrading to POI-3.5 ✴ HSSFFormulaEvaluator.CellValue ✴ convert from .hssf. to .ss. ✴ HSSFRow.MissingCellPolicy ✴ convert from .hssf. to .ss. ✴ RecordFormatException in DDF ✴ convert from .hssf. to .util. Dreadful Drawing Format - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009 3 Meet Office Open XML
paolo@apache.org made (very) simple Open XML ✴ XML based ✴ WordprocessingML ✴ SpreadsheetML ✴ PresentationML ✴ Stored as a package ✴ Open Packaging Conventions - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Package concepts ✴ Package (the container) ✴ Part (xml file) ✴ Relationship ✴ package-relationship ✴ part-relationship - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Expanded package, Excel - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org WordprocessingML ✴ body ✴ paragraphs ✴ runs ✴ properties (for runs and pars) ✴ styles ✴ headers/footers ... - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org SpreadsheetML ✴ workbook ✴ worksheets ✴ rows ✴ cells ✴ styles ✴ formulas ✴ images ... - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org PresentationML ✴ presentation ✴ slides ✴ slides-masters ✴ notes-masters ✴ layout, animation, audio, video, transitions ... - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009 4 openxml4j
paolo@apache.org openXML4J ✴ Package, parts, rels "/xl/worksheets/sheet1.xml" - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009 5 Text Extraction
paolo@apache.org Extractors ✴ POITextExtractor ✴ POIOLE2TextExtractor getT xt() e ✴ POIXMLTextExtractor ✴ XSSFExcelExtractor ✴ XWPFWordExtractor ✴ XSLFPowerPointExtractor ✴ If text is all what you need - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Text extraction ✴ made simple - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009 6 EXCEL Simple Tasks
paolo@apache.org New Workbook - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org New Sheet - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Creating Cells - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Cell types - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Fills and colors - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009 7 EXCEL Imp/Exp to XML
paolo@apache.org Export to XML - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org xmlMaps.xml - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org XML Import/Export - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009 8 WORD Simple Doc
paolo@apache.org A simple doc - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009 9 Use Case 1 Alfresco Search
paolo@apache.org Use Case ✴ Upload a document ✴ Detect document mimetype ✴ Extract text and metadata ✴ Create search index ✴ Search (and find) the document - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Without Tika ✴ Detect the document mimetype ✴ (source/target mimetype) ✴ Get the proper ContentTransformer ✴ (ContentTransformerRegistry) ✴ Tranform Doc Content to Text ✴ (PoiHssfContentTransformer) I here PO ✴ Create Lucene index - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org With Tika - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Extension use case ✴ Adding support for Office Open XML documents (Office 2007+) ✴ Word 2007+ ✴ Excel 2007+ ✴ PowerPoint 2007+ - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org POI text extractors ✴ Remember? - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Apache Tika (Excel) - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Apache Tika - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Apache Tika (Word) - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Apache Tika (Word) - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009 10 Use Case 2 JM Lafferty Financial Forecasting
paolo@apache.org Make your wb look pro- ✴ Rich text ✴ Graphics ✴ Formulas & Named Ranges ✴ Data validations ✴ Conditional formatting ✴ Cell comments - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009
Thursday, November 5, 2009
paolo@apache.org Formula evaluation ✴ The evaluation engine enables you to calculate formula results from within a POI application ✴ Formulas may be added to your workbook by POI ✴ Evaluation is available for .xls and .xlsx - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Formula evaluation (continued) ✴ All arithmetic operators are implemented ✴ Over 280 Excel built in functions are supported - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Formula evaluation (code) - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009 11 Use Case 3: CQ5 Import
Thursday, November 5, 2009
Thursday, November 5, 2009
paolo@apache.org importDocument() - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org getParagraphs(...) ✴ Makes use of ✴ org.apache.poi.hwpf.usermodel.Range - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org importDocument() - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org getTitle(...) ✴ Gets the first paragraph’s text - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org importDocument() - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
Thursday, November 5, 2009
Thursday, November 5, 2009
Thursday, November 5, 2009 12 Want more?
paolo@apache.org More Examples ✴ http://poi.apache.org/spreadsheet/examples.html - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org Even more ✴ Get in touch ✴ http://poi.apache.org/ ✴ Get informed ✴ dev@poi.apache.org ✴ Get involved ✴ http://svn.apache.org/repos/asf/poi/trunk/ - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
paolo@apache.org ✴ Get slides ✴ http://www.slideshare.net/paolomoz/apache-poi-recipes Thanks - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009

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Apache Poi Recipes

  • 1. Apache POI Recipes Paolo Mottadelli - ApacheCon Oakland 2009 http://chromasia.com Thursday, November 5, 2009
  • 2. paolo@apache.org my to-do list - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 3. paolo@apache.org POI @ Content Tech ✴ Document to application (and back) ✴ Publish data ✴ Build a doc from your content ✴ Know your documents ✴ Extract text ✴ Extract content - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 4. Thursday, November 5, 2009 1 A-B-C
  • 5. paolo@apache.org POI modules (1): OLE2 ✴ POIFS: reading/writing Office Documents ✴ HSSF r/w Excel Spreadsheets ✴ HWPF r/w Word Docs ✴ HSLF r/w PowerPoint Docs ✴ HPSF r/w property sets - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 6. paolo@apache.org POI modules (2): OOXML ✴ XSSF: r/w OXML Excel ✴ XWPF: r/w OXML Word ✴ XSLF: r/w OXML PowerPoint - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 7. POI 3.5 http://chromasia.com Thursday, November 5, 2009
  • 8. paolo@apache.org OOXML dev status ✴ XSSF: Final in POI-3.5 ✴ XWPF: Draft (basic features) ✴ XSLF: Not covered (only text ext.) - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 9. paolo@apache.org HSSF & XSSF ✴ Common user model interface ✴ User model based on existing HSSF ✴ Using OpenXML4J and SAX - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 10. Thursday, November 5, 2009 2 Same recipe, different flavours
  • 11. paolo@apache.org Common H/XSSF access ✴ org.apache.poi.ss.usermodel - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 12. paolo@apache.org Upgrading to POI-3.5 ✴ HSSFFormulaEvaluator.CellValue ✴ convert from .hssf. to .ss. ✴ HSSFRow.MissingCellPolicy ✴ convert from .hssf. to .ss. ✴ RecordFormatException in DDF ✴ convert from .hssf. to .util. Dreadful Drawing Format - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 13. Thursday, November 5, 2009 3 Meet Office Open XML
  • 14. paolo@apache.org made (very) simple Open XML ✴ XML based ✴ WordprocessingML ✴ SpreadsheetML ✴ PresentationML ✴ Stored as a package ✴ Open Packaging Conventions - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 15. paolo@apache.org Package concepts ✴ Package (the container) ✴ Part (xml file) ✴ Relationship ✴ package-relationship ✴ part-relationship - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 16. paolo@apache.org Expanded package, Excel - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 17. paolo@apache.org WordprocessingML ✴ body ✴ paragraphs ✴ runs ✴ properties (for runs and pars) ✴ styles ✴ headers/footers ... - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 18. paolo@apache.org SpreadsheetML ✴ workbook ✴ worksheets ✴ rows ✴ cells ✴ styles ✴ formulas ✴ images ... - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 19. paolo@apache.org PresentationML ✴ presentation ✴ slides ✴ slides-masters ✴ notes-masters ✴ layout, animation, audio, video, transitions ... - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 20. Thursday, November 5, 2009 4 openxml4j
  • 21. paolo@apache.org openXML4J ✴ Package, parts, rels "/xl/worksheets/sheet1.xml" - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 22. Thursday, November 5, 2009 5 Text Extraction
  • 23. paolo@apache.org Extractors ✴ POITextExtractor ✴ POIOLE2TextExtractor getT xt() e ✴ POIXMLTextExtractor ✴ XSSFExcelExtractor ✴ XWPFWordExtractor ✴ XSLFPowerPointExtractor ✴ If text is all what you need - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 24. paolo@apache.org Text extraction ✴ made simple - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 25. Thursday, November 5, 2009 6 EXCEL Simple Tasks
  • 26. paolo@apache.org New Workbook - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 27. paolo@apache.org New Sheet - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 28. paolo@apache.org Creating Cells - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 29. paolo@apache.org Cell types - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 30. paolo@apache.org Fills and colors - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 31. Thursday, November 5, 2009 7 EXCEL Imp/Exp to XML
  • 32. paolo@apache.org Export to XML - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 33. paolo@apache.org xmlMaps.xml - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 34. paolo@apache.org XML Import/Export - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 35. Thursday, November 5, 2009 8 WORD Simple Doc
  • 36. paolo@apache.org A simple doc - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 37. paolo@apache.org - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 38. Thursday, November 5, 2009 9 Use Case 1 Alfresco Search
  • 39. paolo@apache.org Use Case ✴ Upload a document ✴ Detect document mimetype ✴ Extract text and metadata ✴ Create search index ✴ Search (and find) the document - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 40. paolo@apache.org Without Tika ✴ Detect the document mimetype ✴ (source/target mimetype) ✴ Get the proper ContentTransformer ✴ (ContentTransformerRegistry) ✴ Tranform Doc Content to Text ✴ (PoiHssfContentTransformer) I here PO ✴ Create Lucene index - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 41. paolo@apache.org With Tika - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 42. paolo@apache.org Extension use case ✴ Adding support for Office Open XML documents (Office 2007+) ✴ Word 2007+ ✴ Excel 2007+ ✴ PowerPoint 2007+ - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 43. paolo@apache.org POI text extractors ✴ Remember? - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 44. paolo@apache.org Apache Tika (Excel) - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 45. paolo@apache.org Apache Tika - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 46. paolo@apache.org Apache Tika (Word) - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 47. paolo@apache.org Apache Tika (Word) - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 48. Thursday, November 5, 2009 10 Use Case 2 JM Lafferty Financial Forecasting
  • 49. paolo@apache.org Make your wb look pro- ✴ Rich text ✴ Graphics ✴ Formulas & Named Ranges ✴ Data validations ✴ Conditional formatting ✴ Cell comments - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 52. paolo@apache.org Formula evaluation ✴ The evaluation engine enables you to calculate formula results from within a POI application ✴ Formulas may be added to your workbook by POI ✴ Evaluation is available for .xls and .xlsx - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 53. paolo@apache.org Formula evaluation (continued) ✴ All arithmetic operators are implemented ✴ Over 280 Excel built in functions are supported - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 54. paolo@apache.org Formula evaluation (code) - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 55. Thursday, November 5, 2009 11 Use Case 3: CQ5 Import
  • 58. paolo@apache.org importDocument() - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 59. paolo@apache.org getParagraphs(...) ✴ Makes use of ✴ org.apache.poi.hwpf.usermodel.Range - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 60. paolo@apache.org importDocument() - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 61. paolo@apache.org getTitle(...) ✴ Gets the first paragraph’s text - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 62. paolo@apache.org importDocument() - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 63. paolo@apache.org - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 66. Thursday, November 5, 2009 12 Want more?
  • 67. paolo@apache.org More Examples ✴ http://poi.apache.org/spreadsheet/examples.html - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 68. paolo@apache.org Even more ✴ Get in touch ✴ http://poi.apache.org/ ✴ Get informed ✴ dev@poi.apache.org ✴ Get involved ✴ http://svn.apache.org/repos/asf/poi/trunk/ - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009
  • 69. paolo@apache.org ✴ Get slides ✴ http://www.slideshare.net/paolomoz/apache-poi-recipes Thanks - ApacheCon US 2009, Oakland - Apache POI Recipes - Thursday, November 5, 2009