Examples of org.w3c.dom.Element

org.w3c.dom.Element
The Element interface represents an element in an HTML or XML document. Elements may have attributes associated with them; since the Element interface inherits from Node , the generic Node interface attribute attributes may be used to retrieve the set of all attributes for an element. There are methods on the Element interface to retrieve either an Attr object by name or an attribute value by name. In XML, where an attribute value may contain entity references, an Attr object should be retrieved to examine the possibly fairly complex sub-tree representing the attribute value. On the other hand, in HTML, where all attributes have simple string values, methods to directly access an attribute value can safely be used as a convenience. In DOM Level 2, the method normalize is inherited from the Node interface where it was moved.

        return coords;
    }


    public Element getSVGString(SVGDocument doc) {


        Element group1 = null;
        group1 = doc.createElementNS("http://www.w3.org/2000/svg", "g");
        group1.setAttributeNS(null, "id", getLayerId());
        if (isAddOpacity()) {
            group1.setAttributeNS(null, "style", "opacity:" + getOpacity());
        }
        group1.appendChild(getBoxDefinition(doc));
        group1.appendChild(getImageDefinition(doc));
        //Get sub activities
        group1.appendChild(getSubActivitiesSVGString(doc));
        group1.appendChild(getArrows(doc));


        return group1;
    }

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        return group;
    }


    protected Element getArrows(SVGDocument doc) {
        if (subActivities != null) {
            Element subGroup = doc.createElementNS("http://www.w3.org/2000/svg", "g");
            org.wso2.carbon.bpel.ui.bpel2svg.ActivityInterface prevActivity = null;
            org.wso2.carbon.bpel.ui.bpel2svg.ActivityInterface activity = null;
            String id = null;
            org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates myStartCoords = getStartIconExitArrowCoords();
            org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates myExitCoords = getEndIconEntryArrowCoords();
            org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates myStartEventCoords = getStartEventCoords();
            SVGCoordinates myStartTerminationCoords = getStartTerminationCoords();
            SVGCoordinates myStartCompensationCoords = getStartCompensationCoords();
            org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates myStartFaultCoords = getStartFaultCoords();
            SVGCoordinates activityEntryCoords = null;
            org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates activityExitCoords = null;
            Iterator<org.wso2.carbon.bpel.ui.bpel2svg.ActivityInterface> itr = subActivities.iterator();
            while (itr.hasNext()) {
                activity = itr.next();
                activityEntryCoords = activity.getEntryArrowCoords();
                activityExitCoords = activity.getExitArrowCoords();
                id = getId() + "-" + activity.getId();
                if (activity instanceof FaultHandlerImpl) {
                    subGroup.appendChild(getArrowDefinition(doc, myStartFaultCoords.getXLeft(), 
                        myStartFaultCoords.getYTop(), activityEntryCoords.getXLeft(), 
                        activityEntryCoords.getYTop(), id, activity, activity));
                } else if (activity instanceof TerminationHandlerImpl) {
                    subGroup.appendChild(getArrowDefinition(doc, myStartTerminationCoords.getXLeft(), 
                        myStartTerminationCoords.getYTop(), activityEntryCoords.getXLeft(), 
                        activityEntryCoords.getYTop(), id, activity, activity));
                } else if (activity instanceof CompensationHandlerImpl) {
                    subGroup.appendChild(getArrowDefinition(doc, myStartCompensationCoords.getXLeft(), 
                        myStartCompensationCoords.getYTop(), activityEntryCoords.getXLeft(), 
                        activityEntryCoords.getYTop(), id, activity, activity));
                } else if (activity instanceof EventHandlerImpl) {
                    subGroup.appendChild(getArrowDefinition(doc, myStartEventCoords.getXLeft(),
                        myStartEventCoords.getYTop(), activityEntryCoords.getXLeft(), 
                        activityEntryCoords.getYTop(), id, activity, activity));
                } else {
                    subGroup.appendChild(getArrowDefinition(doc, myStartCoords.getXLeft(), 
                        myStartCoords.getYTop(), activityEntryCoords.getXLeft(), 
                        activityEntryCoords.getYTop(), id, activity, activity));
                    subGroup.appendChild(getArrowDefinition(doc, activityExitCoords.getXLeft(), 
                        activityExitCoords.getYTop(), myExitCoords.getXLeft(), 
                        myExitCoords.getYTop(), id, activity, activity));
                }
                prevActivity = activity;
            }

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    }


    @Override


    public Element getSVGString(SVGDocument doc) {
        Element group = null;
        group = doc.createElementNS("http://www.w3.org/2000/svg", "g");
        group.setAttributeNS(null, "id", getLayerId());
        if (isAddOpacity()) {
          double op=getOpacity();
          
            group.setAttributeNS(null, "style", "opacity:" + getOpacity());
            group.setAttributeNS(null, "onmouseover", "this.style.opacity=1;this.filters.alpha.opacity=100");
            group.setAttributeNS(null, "onmouseout", "this.style.opacity=" + op + ";this.filters.alpha.opacity=40");
            group.setAttributeNS("xlink", "title", getActivityInfoString());
        }


        // Add border on failed state, to show the red boundary indicating an error has occurred
        if (getState() == ActivityState.Failed) {
          group.appendChild(getBoxDefinition(doc));
        }
        
        group.appendChild(getImageDefinition(doc));
        group.appendChild(getStartImageText(doc));


        return group;
    }

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            org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates myStartElseCoords = getStartIconElseArrowCoords();
            org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates exitCoords = null;
            org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates activityEntryCoords = null;
            org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates activityExitCoords = null;
            Iterator<ActivityInterface> itr = subActivities.iterator();
            Element subGroup = doc.createElementNS("http://www.w3.org/2000/svg", "g");
            while (itr.hasNext()) {
                activity = itr.next();
                activityEntryCoords = activity.getEntryArrowCoords();
                activityExitCoords = activity.getExitArrowCoords();


                if (activity instanceof ElseIfImpl || activity instanceof ElseImpl) {
                    if (prevActivity != null && prevActivity instanceof ElseIfImpl) {
                        exitCoords = ((ElseIfInterface) prevActivity).getNextElseExitArrowCoords();
//                        activityEntryCoords = activity.getEntryArrowCoords();
                        id = prevActivity.getId() + "-" + activity.getId();


                        subGroup.appendChild(getArrowDefinition(doc, exitCoords.getXLeft(), 
                            exitCoords.getYTop(), activityEntryCoords.getXLeft(), 
                            activityEntryCoords.getYTop(), id, prevActivity, activity));
                        subGroup.appendChild(getArrowDefinition(doc, activityExitCoords.getXLeft(), 
                            activityExitCoords.getYTop(), myExitCoords.getXLeft(), 
                            myExitCoords.getYTop(), id, prevActivity, activity));


                    } else {
//                        activityEntryCoords = activity.getEntryArrowCoords();
                        subGroup.appendChild(getArrowDefinition(doc, myStartElseCoords.getXLeft(), 
                            myStartElseCoords.getYTop(), activityEntryCoords.getXLeft(), 
                            activityEntryCoords.getYTop(), id, prevActivity, activity));
                        subGroup.appendChild(getArrowDefinition(doc, activityExitCoords.getXLeft(), 
                            activityExitCoords.getYTop(), myExitCoords.getXLeft(), 
                            myExitCoords.getYTop(), id, prevActivity, activity));


                    }
                } else {
                    if (prevActivity != null) {
                        exitCoords = prevActivity.getExitArrowCoords();
//                        activityEntryCoords = activity.getEntryArrowCoords();
//                        activityExitCoords = activity.getExitArrowCoords();
                        id = prevActivity.getId() + "-" + activity.getId();
                        subGroup.appendChild(getArrowDefinition(doc, exitCoords.getXLeft(), 
                            exitCoords.getYTop(), activityEntryCoords.getXLeft(), 
                            activityEntryCoords.getYTop(), id, prevActivity, activity));
                    } else {
//                        activityEntryCoords = activity.getEntryArrowCoords();
                        subGroup.appendChild(getArrowDefinition(doc, myStartCoords.getXLeft(), 
                            myStartCoords.getYTop(), activityEntryCoords.getXLeft(), 
                            activityEntryCoords.getYTop(), id, this, activity));
                        subGroup.appendChild(getArrowDefinition(doc, activityExitCoords.getXLeft(), 
                            activityExitCoords.getYTop(), myExitCoords.getXLeft(), 
                            myExitCoords.getYTop(), id, this, activity));


                    }
                }

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   * 
   * @param o the object that is serialized into XML
   * @throws Exception if post-processing fails
   */
  protected void writePostProcess(Object o) throws Exception {
    Element         root;
    NodeList        list;
    Element         conns;
    Element         child;
    int             i;


    // since not all BeanConnections get saved to XML (e.g., MetaBeans in the 
    // UserToolBar) if one saves a layout, the numbering in the Vector of the 
    // BeanConnections is not correct. The "name" attribute of the nodes has
    // to be modified
    if (getDataType() == DATATYPE_LAYOUT) {
      root  = m_Document.getDocument().getDocumentElement();
      conns = (Element) root.getChildNodes().item(INDEX_BEANCONNECTIONS);
      list  = conns.getChildNodes();
      for (i = 0; i < list.getLength(); i++) {
        child = (Element) list.item(i);
        child.setAttribute(ATT_NAME, "" + i);
      }
    }
  }

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   * @see #m_BeanInstances
   */
  protected Document readPreProcess(Document document) throws Exception {
    NodeList        list;
    int             i;
    Element         node;
    String          clsName;
    Vector          children;
    int             id;
    int             n;
    Element         child;
    
    m_BeanInstances   = new Vector();
    m_BeanInstancesID = new Vector();
    
    // get all BeanInstance nodes
    list    = document.getElementsByTagName("*");
    clsName = BeanInstance.class.getName();
    for (i = 0; i < list.getLength(); i++) {
      node = (Element) list.item(i);
      
      // is it a BeanInstance?
      if (node.getAttribute(ATT_CLASS).equals(clsName)) {
        children = XMLDocument.getChildTags(node);
        id       = m_BeanInstancesID.size();
        
        // get id-tag (if available)
        for (n = 0; n < children.size(); n++) {
          child = (Element) children.get(n);
          if (child.getAttribute(ATT_NAME).equals(VAL_ID))
            id = readIntFromXML((Element) child);
        }
        
        m_BeanInstancesID.add(new Integer(id));
      }

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   * @throws Exception if the DOM creation fails
   */
  public Element writeColor(Element parent, Object o, String name)
    throws Exception {
    
    Element     node;
    Color       color;


    // for debugging only
    if (DEBUG)
       trace(new Throwable(), name);

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   * @throws Exception if instantiation fails
   */
  public Object readColor(Element node) throws Exception {
    Object      result;
    Vector      children;
    Element     child;
    int         i;
    int         red;
    int         green;
    int         blue;
    String      name;


    // for debugging only
    if (DEBUG)
       trace(new Throwable(), node.getAttribute(ATT_NAME));


    m_CurrentNode = node;
    
    result   = null;
    children = XMLDocument.getChildTags(node);
    red      = 0;
    green    = 0;
    blue     = 0;


    for (i = 0; i < children.size(); i++) {
      child = (Element) children.get(i);
      name  = child.getAttribute(ATT_NAME);


      if (name.equals(VAL_RED))
        red = readIntFromXML(child);
      else if (name.equals(VAL_GREEN))
        green = readIntFromXML(child);

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   * @throws Exception if the DOM creation fails
   */
  public Element writeDimension(Element parent, Object o, String name)
      throws Exception {
    
    Element     node;
    Dimension   dim;


    // for debugging only
    if (DEBUG)
       trace(new Throwable(), name);

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   * @throws Exception if instantiation fails
   */
  public Object readDimension(Element node) throws Exception {
    Object      result;
    Vector      children;
    Element     child;
    int         i;
    double      width;
    double      height;
    String      name;


    // for debugging only
    if (DEBUG)
       trace(new Throwable(), node.getAttribute(ATT_NAME));


    m_CurrentNode = node;
    
    result   = null;
    children = XMLDocument.getChildTags(node);
    width    = 0;
    height   = 0;


    for (i = 0; i < children.size(); i++) {
      child = (Element) children.get(i);
      name  = child.getAttribute(ATT_NAME);


      if (name.equals(VAL_WIDTH))
        width = readDoubleFromXML(child);
      else if (name.equals(VAL_HEIGHT))
        height = readDoubleFromXML(child);

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