Example usage for org.w3c.dom Element getClass

Introduction

In this page you can find the example usage for org.w3c.dom Element getClass.

Prototype

@HotSpotIntrinsicCandidate
public final native Class<?> getClass();

Source Link

Document

Returns the runtime class of this Object .

Usage

From source file:org.openmrs.module.drawing.obs.handler.DrawingHandler.java

public void saveAnnotation(Obs obs, ImageAnnotation annotation, boolean delete) {
    try {//from   www .  j a v  a 2s .  c o m
        log.info("drawing: Saving annotation for obs " + obs.getObsId());

        File metadataFile = getComplexMetadataFile(obs);
        log.info("drawing: Using file " + metadataFile.getCanonicalPath());

        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        Document xmldoc;
        Element annotationsParent;
        int newId = 0;

        if (metadataFile.exists()) {
            xmldoc = builder.parse(metadataFile);
            annotationsParent = (Element) xmldoc.getElementsByTagName("Annotations").item(0);
            NodeList annotationNodeList = xmldoc.getElementsByTagName("Annotation");

            for (int i = 0; i < annotationNodeList.getLength(); i++) {
                NamedNodeMap attributes = annotationNodeList.item(i).getAttributes();
                String idString = attributes.getNamedItem("id").getNodeValue();
                int existingId = Integer.parseInt(idString);
                if (existingId == annotation.getId() && !(annotation.getStatus() == Status.UNCHANGED)) {
                    annotationsParent.removeChild(annotationNodeList.item(i));
                    break;
                }
                if (existingId >= newId)
                    newId = existingId + 1;
            }
        } else {
            metadataFile.createNewFile();
            DOMImplementation domImpl = builder.getDOMImplementation();
            xmldoc = domImpl.createDocument(null, "ImageMetadata", null);
            Element root = xmldoc.getDocumentElement();
            annotationsParent = xmldoc.createElementNS(null, "Annotations");
            root.appendChild(annotationsParent);
        }

        if (!delete && annotation.getStatus() != Status.UNCHANGED) {
            if (annotation.getId() >= 0)
                newId = annotation.getId();

            Element e = xmldoc.createElementNS(null, "Annotation");
            Node n = xmldoc.createTextNode(annotation.getText());
            e.setAttributeNS(null, "id", newId + "");
            e.setAttributeNS(null, "xcoordinate", annotation.getLocation().getX() + "");
            e.setAttributeNS(null, "ycoordinate", annotation.getLocation().getY() + "");
            e.setAttributeNS(null, "userid", annotation.getUser().getUserId() + "");
            e.setAttributeNS(null, "date", annotation.getDate().getTime() + "");
            e.appendChild(n);
            annotationsParent.appendChild(e);
        }

        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF8");
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.transform(new DOMSource(xmldoc), new StreamResult(metadataFile));

        log.info("drawing: Saving annotation complete");

    } catch (Exception e) {
        log.error("drawing: Error saving image metadata: " + e.getClass() + " " + e.getMessage());
    }
}

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