Examples of org.apache.poi.openxml4j.opc.PackageRelationship

org.apache.poi.openxml4j.opc.PackageRelationship
A part relationship. @author Julien Chable @version 1.0


    /**
     * Construct POIXMLDocumentPart representing a "core document" package part.
     */
    public POIXMLDocumentPart(OPCPackage pkg) {
        PackageRelationship coreRel = pkg.getRelationshipsByType(PackageRelationshipTypes.CORE_DOCUMENT).getRelationship(0);


        this.packagePart = pkg.getPart(coreRel);
        this.packageRel = coreRel;
    }

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     * @return the created child POIXMLDocumentPart
     */
    protected final POIXMLDocumentPart createRelationship(POIXMLRelation descriptor, POIXMLFactory factory, int idx, boolean noRelation){
        try {
            PackagePartName ppName = PackagingURIHelper.createPartName(descriptor.getFileName(idx));
            PackageRelationship rel = null;
            PackagePart part = packagePart.getPackage().createPart(ppName, descriptor.getContentType());
            if(!noRelation) {
                /* only add to relations, if according relationship is being created. */
                rel = packagePart.addRelationship(ppName, TargetMode.INTERNAL, descriptor.getRelation());
            }
            POIXMLDocumentPart doc = factory.newDocumentPart(descriptor);
            doc.packageRel = rel;
            doc.packagePart = part;
            doc.parent = this;
            if(!noRelation) {
                /* only add to relations, if according relationship is being created. */
                addRelation(rel.getId(),doc);
            }
            return doc;
        } catch (PartAlreadyExistsException pae) {
           // Return the specific exception so the user knows
           //  that the name is already taken

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            PackageRelationshipCollection hyperRels =
                getPackagePart().getRelationshipsByType(XSSFRelation.SHEET_HYPERLINKS.getRelation());


            // Turn each one into a XSSFHyperlink
            for(CTHyperlink hyperlink : worksheet.getHyperlinks().getHyperlinkArray()) {
                PackageRelationship hyperRel = null;
                if(hyperlink.getId() != null) {
                    hyperRel = hyperRels.getRelationshipByID(hyperlink.getId());
                }


                hyperlinks.add( new XSSFHyperlink(hyperlink, hyperRel) );

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     * Creates a new XSSFReader, for the given package
     */
    public XSSFReader(OPCPackage pkg) throws IOException, OpenXML4JException {
        this.pkg = pkg;


        PackageRelationship coreDocRelationship = this.pkg.getRelationshipsByType(
                PackageRelationshipTypes.CORE_DOCUMENT).getRelationship(0);


        // Get the part that holds the workbook
        workbookPart = this.pkg.getPart(coreDocRelationship);
    }

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     * Returns an InputStream to read the contents of the
     *  specified Sheet.
     * @param relId The relationId of the sheet, from a r:id on the workbook
     */
    public InputStream getSheet(String relId) throws IOException, InvalidFormatException {
        PackageRelationship rel = workbookPart.getRelationship(relId);
        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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           // Do we have a comments relationship? (Only ever one if so)
           try {
              PackageRelationshipCollection commentsList = 
                   sheetPkg.getRelationshipsByType(XSSFRelation.SHEET_COMMENTS.getRelation());
              if(commentsList.size() > 0) {
                 PackageRelationship comments = commentsList.getRelationship(0);
                 PackagePartName commentsName = PackagingURIHelper.createPartName(comments.getTargetURI());
                 PackagePart commentsPart = sheetPkg.getPackage().getPart(commentsName);
                 return new CommentsTable(commentsPart, comments);
              }
           } catch (InvalidFormatException e) {
              return null;

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            List<XSSFShape> shapes= new LinkedList<XSSFShape>();
           // Do we have a comments relationship? (Only ever one if so)
           try {
              PackageRelationshipCollection drawingsList = sheetPkg.getRelationshipsByType(XSSFRelation.DRAWINGS.getRelation());
              for (int i = 0; i < drawingsList.size(); i++){
                  PackageRelationship drawings = drawingsList.getRelationship(i);
                  PackagePartName drawingsName = PackagingURIHelper.createPartName(drawings.getTargetURI());
                  PackagePart drawingsPart = sheetPkg.getPackage().getPart(drawingsName);
                  XSSFDrawing drawing = new XSSFDrawing(drawingsPart, drawings);
                  for (XSSFShape shape : drawing.getShapes()){
                      shapes.add(shape);
                  }

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            PackageRelationshipCollection hyperRels =
                getPackagePart().getRelationshipsByType(XSSFRelation.SHEET_HYPERLINKS.getRelation());


            // Turn each one into a XSSFHyperlink
            for(CTHyperlink hyperlink : worksheet.getHyperlinks().getHyperlinkArray()) {
                PackageRelationship hyperRel = null;
                if(hyperlink.getId() != null) {
                    hyperRel = hyperRels.getRelationshipByID(hyperlink.getId());
                }


                hyperlinks.add( new XSSFHyperlink(hyperlink, hyperRel) );

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     *
     * @return  the newly created picture shape.
     */
    public XSSFPicture createPicture(XSSFClientAnchor anchor, int pictureIndex)
    {
        PackageRelationship rel = addPictureReference(pictureIndex);


        long shapeId = newShapeId();
        CTTwoCellAnchor ctAnchor = createTwoCellAnchor(anchor);
        CTPicture ctShape = ctAnchor.addNewPic();
        ctShape.set(XSSFPicture.prototype());

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     */
    protected PackageRelationship addPictureReference(int pictureIndex){
        XSSFWorkbook wb = (XSSFWorkbook)getParent().getParent();
        XSSFPictureData data = wb.getAllPictures().get(pictureIndex);
        PackagePartName ppName = data.getPackagePart().getPartName();
        PackageRelationship rel = getPackagePart().addRelationship(ppName, TargetMode.INTERNAL, XSSFRelation.IMAGES.getRelation());
        addRelation(rel.getId(),new XSSFPictureData(data.getPackagePart(), rel));
        return rel;
    }

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