Review

finding-8

/mubench/checkouts/itext/5091/build/src/main/java//com/itextpdf/text/pdf/PdfWriter.java

close()

class PdfWriter {
    /**
     * Signals that the <CODE>Document</CODE> was closed and that no other
     * <CODE>Elements</CODE> will be added.
     * <P>
     * The pages-tree is built and written to the outputstream.
     * A Catalog is constructed, as well as an Info-object,
     * the reference table is composed and everything is written
     * to the outputstream embedded in a Trailer.
     * @see com.itextpdf.text.DocWriter#close()
     */
    @Override
    public void close() {
        if (open) {
            if (currentPageNumber - 1 != pageReferences.size())
                throw new RuntimeException("The page " + pageReferences.size() +
                " was requested but the document has only " + (currentPageNumber - 1) + " pages.");
            pdf.close();
            try {
                addSharedObjectsToBody();
                for (PdfOCG layer : documentOCG) {
                    addToBody(layer.getPdfObject(), layer.getRef());
                }
                // add the root to the body
                PdfIndirectReference rootRef = root.writePageTree();
                // make the catalog-object and add it to the body
                PdfDictionary catalog = getCatalog(rootRef);
                // [C9] if there is XMP data to add: add it
                if (xmpMetadata != null) {
                	PdfStream xmp = new PdfStream(xmpMetadata);
                	xmp.put(PdfName.TYPE, PdfName.METADATA);
                	xmp.put(PdfName.SUBTYPE, PdfName.XML);
                    if (crypto != null && !crypto.isMetadataEncrypted()) {
                        PdfArray ar = new PdfArray();
                        ar.add(PdfName.CRYPT);
                        xmp.put(PdfName.FILTER, ar);
                    }
                	catalog.put(PdfName.METADATA, body.add(xmp).getIndirectReference());
                }
                // [C10] make pdfx conformant
                if (isPdfX()) {
                    pdfxConformance.completeInfoDictionary(getInfo());
                    pdfxConformance.completeExtraCatalog(getExtraCatalog());
                }
                // [C11] Output Intents
                if (extraCatalog != null) {
                    catalog.mergeDifferent(extraCatalog);
                }

                writeOutlines(catalog, false);

                // add the Catalog to the body
                PdfIndirectObject indirectCatalog = addToBody(catalog, false);
                // add the info-object to the body
                PdfIndirectObject infoObj = addToBody(getInfo(), false);

                // [F1] encryption
                PdfIndirectReference encryption = null;
                PdfObject fileID = null;
                body.flushObjStm();
                if (crypto != null) {
                    PdfIndirectObject encryptionObject = addToBody(crypto.getEncryptionDictionary(), false);
                    encryption = encryptionObject.getIndirectReference();
                    fileID = crypto.getFileID();
                }
                else
                    fileID = PdfEncryption.createInfoId(PdfEncryption.createDocumentId());

                // write the cross-reference table of the body
                body.writeCrossReferenceTable(os, indirectCatalog.getIndirectReference(),
                    infoObj.getIndirectReference(), encryption,  fileID, prevxref);

                // make the trailer
                // [F2] full compression
                if (fullCompression) {
                    os.write(getISOBytes("startxref\n"));
                    os.write(getISOBytes(String.valueOf(body.offset())));
                    os.write(getISOBytes("\n%%EOF\n"));
                }
                else {
                    PdfTrailer trailer = new PdfTrailer(body.size(),
                    body.offset(),
                    indirectCatalog.getIndirectReference(),
                    infoObj.getIndirectReference(),
                    encryption,
                    fileID, prevxref);
                    trailer.toPdf(this, os);
                }
                super.close();
            }
            catch(IOException ioe) {
                throw new ExceptionConverter(ioe);
            }
        }
    }

}