protected Object cloneForNewDocument()

in src/java/org/apache/fop/render/pdf/pdfbox/PDFCloner.java [71:131]

• 51 lines of code
• 17 McCabe index (conditional complexity)

    protected Object cloneForNewDocument(Object base, Object keyBase, Collection exclude) throws IOException {
        if (base == null) {
            return null;
        }
        Object cached = adapter.getCachedClone(keyBase);
        if (cached != null) {
            // we are done, it has already been converted.
            return cached;
        } else if (base instanceof COSObjectable && !(base instanceof COSBase)) {
            Object o = ((COSObjectable)base).getCOSObject();
            Object retval = cloneForNewDocument(o, o, exclude);
            return cacheClonedObject(keyBase, retval);
        } else if (base instanceof COSObject) {
            return readCOSObject((COSObject) base, exclude);
        } else if (base instanceof COSArray) {
            PDFArray newArray = new PDFArray();
            cacheClonedObject(keyBase, newArray);
            COSArray array = (COSArray)base;
            for (int i = 0; i < array.size(); i++) {
                newArray.add(cloneForNewDocument(array.get(i), array.get(i), exclude));
            }
            return newArray;
//        } else if (base instanceof COSStreamArray) {
//            COSStreamArray array = (COSStreamArray)base;
//            PDFArray newArray = new PDFArray();
//            cacheClonedObject(keyBase, newArray);
//            for (int i = 0, c = array.getStreamCount(); i < c; i++) {
//                newArray.add(cloneForNewDocument(array.get(i)));
//            }
//            return newArray;
        } else if (base instanceof COSStream) {
            return readCOSStream((COSStream) base, keyBase);
        } else if (base instanceof COSDictionary) {
            return readCOSDictionary((COSDictionary) base, keyBase, exclude);
        } else if (base instanceof COSName) {
            PDFName newName = new PDFName(((COSName)base).getName());
            return cacheClonedObject(keyBase, newName);
        } else if (base instanceof COSInteger) {
            PDFNumber number = new PDFNumber();
            number.setNumber(((COSInteger)base).longValue());
            return cacheClonedObject(keyBase, number);
        } else if (base instanceof COSFloat) {
            PDFNumber number = new PDFNumber();
            number.setNumber(((COSFloat)base).floatValue());
            return cacheClonedObject(keyBase, number);
        } else if (base instanceof COSBoolean) {
            //TODO Do we need a PDFBoolean here?
            Boolean retval = ((COSBoolean)base).getValueAsObject();
            if (keyBase instanceof COSObject) {
                return cacheClonedObject(keyBase, new PDFBoolean(retval));
            } else {
                return cacheClonedObject(keyBase, retval);
            }
        } else if (base instanceof COSString) {
            return readCOSString((COSString) base, keyBase);
        } else if (base instanceof COSNull) {
            return cacheClonedObject(keyBase, null);
        } else {
            throw new UnsupportedOperationException("NYI: " + base.getClass().getName());
        }
    }