Examples of org.openxml4j.opc.PackagePart

org.openxml4j.opc.PackagePart
Provides a base class for parts stored in a Package. @author Julien Chable @version 0.9

  /**
   * Returns the low level notes object for the given
   *  slide, as found from the supplied slide reference
   */
  public CTNotesSlide getNotes(CTSlideIdListEntry slide) throws IOException, XmlException {
    PackagePart notesPart = getNodesPart(slide);
    if(notesPart == null)
      return null;
    
    NotesDocument notesDoc =
      NotesDocument.Factory.parse(notesPart.getInputStream());
    
    return notesDoc.getNotes();
  }

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  /**
   * Returns all the comments for the given slide
   */
  public CTCommentList getSlideComments(CTSlideIdListEntry slide) throws IOException, XmlException {
    PackageRelationshipCollection commentRels;
    PackagePart slidePart = getSlidePart(slide);
    
    try {
      commentRels = slidePart.getRelationshipsByType(COMMENT_RELATION_TYPE);
    } catch(InvalidFormatException e) {
      throw new IllegalStateException(e);
    }
    
    if(commentRels.size() == 0) {
      // No comments for this slide
      return null;
    }
    if(commentRels.size() > 1) {
      throw new IllegalStateException("Expecting 0 or 1 comments for a slide, but found " + commentRels.size());
    }
    
    try {
      PackagePart cPart = getTargetPart(
          commentRels.getRelationship(0)
      );
      CmLstDocument commDoc = 
        CmLstDocument.Factory.parse(cPart.getInputStream());
      return commDoc.getCmLst();
    } catch(InvalidFormatException e) {
      throw new IllegalStateException(e);
    }
  }

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        if(rel == null) {
            throw new IllegalArgumentException("No Sheet found with r:id " + relId);
        }


        PackagePartName relName = PackagingURIHelper.createPartName(rel.getTargetURI());
        PackagePart sheet = pkg.getPart(relName);
        if(sheet == null) {
            throw new IllegalArgumentException("No data found for Sheet with r:id " + relId);
        }
        return sheet.getInputStream();
    }

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        public InputStream next() {
            ctSheet = sheetIterator.next();


            String sheetId = ctSheet.getId();
            try {
                PackagePart sheetPkg = sheetMap.get(sheetId);
                return sheetPkg.getInputStream();
            } catch(IOException e) {
                throw new POIXMLException(e);
            }
        }

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        xmlOptions.setSaveSyntheticDocumentElement(new QName(CTWorkbook.type.getName().getNamespaceURI(), "workbook"));
        Map map = new HashMap();
        map.put(STRelationshipId.type.getName().getNamespaceURI(), "r");
        xmlOptions.setSaveSuggestedPrefixes(map);


        PackagePart part = getPackagePart();
        OutputStream out = part.getOutputStream();
        workbook.save(out, xmlOptions);
        out.close();
    }

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    workbook.write(out);
    out.close();
    
    // Check the package contains what we'd expect it to
    Package pkg = Package.open(file.toString());
    PackagePart wbRelPart = 
      pkg.getPart(PackagingURIHelper.createPartName("/xl/_rels/workbook.xml.rels"));
    assertNotNull(wbRelPart);
    assertTrue(wbRelPart.isRelationshipPart());
    assertEquals(ContentTypes.RELATIONSHIPS_PART, wbRelPart.getContentType());
    
    PackagePart wbPart = 
      pkg.getPart(PackagingURIHelper.createPartName("/xl/workbook.xml"));
    // Links to the three sheets, shared strings and styles
    assertTrue(wbPart.hasRelationships());
    assertEquals(5, wbPart.getRelationships().size());
    
    // Load back the XSSFWorkbook
    workbook = new XSSFWorkbook(pkg);
    assertEquals(3, workbook.getNumberOfSheets());
    assertNotNull(workbook.getSheetAt(0));

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    assertNotNull(workbook.getSharedStringSource());
    assertNotNull(workbook.getStylesSource());
    
    // And check a few low level bits too
    Package pkg = Package.open(HSSFTestDataSamples.openSampleFileStream("Formatting.xlsx"));
    PackagePart wbPart = 
      pkg.getPart(PackagingURIHelper.createPartName("/xl/workbook.xml"));
    
    // Links to the three sheets, shared, styles and themes
    assertTrue(wbPart.hasRelationships());
    assertEquals(6, wbPart.getRelationships().size());


  }

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          corePart.getRelationshipsByType(_relation);
        Iterator<PackageRelationship> it = prc.iterator();
        if(it.hasNext()) {
            PackageRelationship rel = it.next();
            PackagePartName relName = PackagingURIHelper.createPartName(rel.getTargetURI());
            PackagePart part = corePart.getPackage().getPart(relName);
            return part.getInputStream();
        } else {
          log.log(POILogger.WARN, "No part " + _defaultName + " found");
          return null;
        }
  }

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        doc.save(out, DEFAULT_XML_OPTIONS);
    }


    @Override
    protected void commit() throws IOException {
        PackagePart part = getPackagePart();
        OutputStream out = part.getOutputStream();
        writeTo(out);
        out.close();
    }

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    doc.save(out, options);
  }


    @Override
    protected void commit() throws IOException {
        PackagePart part = getPackagePart();
        OutputStream out = part.getOutputStream();
        writeTo(out);
        out.close();
    }

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