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

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

     * @throws InvalidFormatException 
     */
    public PackageRelationship addPictureReference(byte[] pictureData, int format) throws InvalidFormatException{
      int imageNumber = getNextPicNameNumber(format);
        XWPFPictureData img = (XWPFPictureData)createRelationship(XWPFPictureData.RELATIONS[format], XWPFFactory.getInstance(), imageNumber, false);
        PackageRelationship rel = null;
        try {
            OutputStream out = img.getPackagePart().getOutputStream();
            out.write(pictureData);
             out.close();
             rel = img.getPackageRelationship();

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     * @throws InvalidFormatException 
     * @throws IOException 
       */
      public PackageRelationship addPictureReference(InputStream is, int format) throws InvalidFormatException, IOException{
        
        PackageRelationship rel = null;
        int imageNumber = getNextPicNameNumber(format);
        XWPFPictureData img = (XWPFPictureData)createRelationship(XWPFPictureData.RELATIONS[format], XWPFFactory.getInstance(), imageNumber, false);
        OutputStream out = img.getPackagePart().getOutputStream();
        IOUtils.copy(is, out);
        out.close();

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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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        // TODO: make me optional/separated in private function
        try  {
            Iterator <PackageRelationship> relIter =
                getPackagePart().getRelationshipsByType(XWPFRelation.HYPERLINK.getRelation()).iterator();
            while(relIter.hasNext()) {
                PackageRelationship rel = relIter.next();
                hyperlinks.add(new XWPFHyperlink(rel.getId(), rel.getTargetURI().toString()));
            }
        } catch (InvalidFormatException e){
            throw new POIXMLException(e);
        }
    }

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     * @param format      the picture format
     */
    public PackageRelationship addPictureReference(byte[] pictureData, int format){
      int imageNumber = getNextPicNameNumber(format);
        XWPFPictureData img = (XWPFPictureData)createRelationship(XWPFPictureData.RELATIONS[format], XWPFFactory.getInstance(), imageNumber, false);
        PackageRelationship rel = null;
        try {
            OutputStream out = img.getPackagePart().getOutputStream();
            out.write(pictureData);
             out.close();
             rel = img.getPackageRelationship();

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       *
       * @param is the stream to read picture data from
       */
      public PackageRelationship addPictureReference(InputStream is, int format){
        
        PackageRelationship rel = null;
          try {
            int imageNumber = getNextPicNameNumber(format);
            XWPFPictureData img = (XWPFPictureData)createRelationship(XWPFPictureData.RELATIONS[format], XWPFFactory.getInstance(), imageNumber, false);
            OutputStream out = img.getPackagePart().getOutputStream();
            IOUtils.copy(is, out);

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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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    /**
     * 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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