Examples of org.jdom.Element

org.jdom.Element
An XML element. Methods allow the user to get and manipulate its child elements and content, directly access the element's textual content, manipulate its attributes, and manage namespaces. @version $Revision: 1.159 $, $Date: 2007/11/14 05:02:08 $ @author Brett McLaughlin @author Jason Hunter @author Lucas Gonze @author Kevin Regan @author Dan Schaffer @author Yusuf Goolamabbas @author Kent C. Johnson @author Jools Enticknap @author Alex Rosen @author Bradley S. Huffman @author Victor Toni

            return results;
        }
        // -------------------------------
        // Read the SELECT elements
        // -------------------------------
        Element selectElement = resultsElement.getChild(TagNames.Elements.SELECT);
        Select select = new Select();
        select = consumeMsg(select, selectElement);


        List listOfElementSymbols = select.getSymbols();
        Iterator elementSymbolItr = listOfElementSymbols.iterator();
        Collection collectionOfColumnInfos = new ArrayList();
        while ( elementSymbolItr.hasNext() ) {
            ElementSymbol elementSymbol = (ElementSymbol) elementSymbolItr.next();
            Class elementType = elementSymbol.getType();
            String dataType = DataTypeManager.getDataTypeName(elementType);
            ColumnInfo columnInfo = new ColumnInfo(elementSymbol.getName(), dataType, elementType);
            collectionOfColumnInfos.add(columnInfo);
        }
        // Save column info
        results.addFields(collectionOfColumnInfos);
        // -------------------------------
        // Read the TABLE of data
        // -------------------------------


        Element tableElement = resultsElement.getChild(TagNames.Elements.TABLE);
        List tableRows = tableElement.getChildren(TagNames.Elements.TABLE_ROW);
        if ( tableRows.size() > 0 ) {
            Iterator rowIter = tableRows.iterator();


            while ( rowIter.hasNext() ) {
                Element rowElement = (Element) rowIter.next();
                List cellElements = rowElement.getChildren(TagNames.Elements.TABLE_CELL);
                Iterator cellIter = cellElements.iterator();
                // Read cells of the table
                ArrayList row = new ArrayList();
                Object evalue = null;
                while ( cellIter.hasNext() ) {
                    Element cellElement = (Element) cellIter.next();
                    if ( cellElement.getTextTrim().equalsIgnoreCase(TagNames.Elements.NULL) ) {
                        row.add(null);
                    } else {
                        Element cellChildElement = (Element) cellElement.getChildren().get(0);
                        evalue = consumeMsg(cellChildElement);
                        row.add(evalue);
                    }
                }
                // Save row

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        // Read the IDENTIFIER elements ...
        // --------------------------------
        List idents = selectElement.getChildren();
        Iterator identIter = idents.iterator();
        while ( identIter.hasNext() ) {
            Element dataElement = (Element) identIter.next();
            Attribute dataType = dataElement.getAttribute(TagNames.Attributes.TYPE);
            // add the dataType of the element to the list containing dataTypes
            ElementSymbol nodeID = new ElementSymbol(dataElement.getText());
            Class nodeType = (Class) TagNames.TYPE_MAP.get(dataType.getValue());
            if (nodeType == null)  {
                throw new JDOMException("Unknown class for type \"" + dataType.getValue() + "\"."); //$NON-NLS-1$ //$NON-NLS-2$
            }
            nodeID.setType(nodeType);

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    private Element produceMsg(ResultSet object, int endRow) throws JDOMException, SQLException {


        // -----------------------------------
        // Create the QueryResults element ...
        // -----------------------------------
        Element resultsElement = new Element(TagNames.Elements.QUERY_RESULTS);


        // -----------------------------------
        // Add the Select (header) element ...
        // -----------------------------------
        try {
            ResultSetMetaData rmdata = object.getMetaData();
            List identList = new ArrayList(rmdata.getColumnCount());
            for ( int i = 1; i <= rmdata.getColumnCount(); i++ ) {
                identList.add(new ElementSymbol(rmdata.getColumnName(i)));
            }
            Select select = new Select(identList);
            resultsElement = produceMsg(select, rmdata, resultsElement);


            // -------------------------
            // Add the Table element ...
            // -------------------------
            resultsElement.addContent(new Element(TagNames.Elements.TABLE));
            Element tableElement = resultsElement.getChild(TagNames.Elements.TABLE);
            int rowCount = 0;
            int colCount = rmdata.getColumnCount();


            while ( object.next() && (object.getRow() <= endRow) ) {


                // -------------------------
                // Add the ROW element ...
                // -------------------------
                Element rowElement = new Element(TagNames.Elements.TABLE_ROW);


                for ( int i = 1; i <= colCount; i++ ) {
                    // -------------------------
                    // Add the Cell element ...
                    // -------------------------
                    Element cellElement = new Element(TagNames.Elements.TABLE_CELL);
                    Object cellValue = object.getObject(i);
                    if ( cellValue != null ) {
                        cellElement = produceMsg(cellValue, cellElement);
                    } else {
                        cellElement = cellElement.addContent(TagNames.Elements.NULL);
                    }
                    rowElement.addContent(cellElement);
                }
                tableElement.addContent(rowElement);
                rowCount++;

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            resultsElement = produceMsg(select, rmdata, resultsElement);


            // -------------------------
            // Add the Table element ...
            // -------------------------
            resultsElement.addContent(new Element(TagNames.Elements.TABLE));
            Element tableElement = resultsElement.getChild(TagNames.Elements.TABLE);
            int rowCount = 0;
            int colCount = rmdata.getColumnCount();


            while ( object.next() ) {


                // -------------------------
                // Add the ROW element ...
                // -------------------------
                Element rowElement = new Element(TagNames.Elements.TABLE_ROW);


                for ( int i = 1; i <= colCount; i++ ) {
                    // -------------------------
                    // Add the Cell element ...
                    // -------------------------
                    Element cellElement = new Element(TagNames.Elements.TABLE_CELL);
                    Object cellValue = object.getObject(i);
                    if ( cellValue != null ) {
                        cellElement = produceMsg(cellValue, cellElement);
                    } else {
                        cellElement = cellElement.addContent(TagNames.Elements.NULL);
                    }
                    rowElement.addContent(cellElement);
                }
                tableElement.addContent(rowElement);
                rowCount++;

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     */
    public Element produceMsg(Object object, Element parent) throws JDOMException, SQLException {
        if ( object == null ) {
            throw new IllegalArgumentException("Null object reference."); //$NON-NLS-1$
        }
        Element element = null;


        if ( object instanceof Boolean ) {
            element = produceMsg((Boolean) object, parent);
        } else if ( object instanceof String ) {
            element = produceMsg((String) object, parent);

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        // -----------------------------------
        // Create the Select element ...
        // -----------------------------------


        Element selectElement = new Element(TagNames.Elements.SELECT);


        // ---------------------------------
        // Create the DISTINCT attribute ...
        // ---------------------------------
        boolean distinct = select.isDistinct();
        if ( distinct ) {
            Attribute distinctAttribute = new Attribute(TagNames.Attributes.DISTINCT, "true"); //$NON-NLS-1$
            selectElement.setAttribute(distinctAttribute);
        } // else default is false so no need


        // ----------------------------------
        // Create the STAR attribute ...
        // ----------------------------------
        if ( select.isStar() ) {
            Attribute starAttribute = new Attribute(TagNames.Attributes.STAR, "true"); //$NON-NLS-1$
            selectElement.setAttribute(starAttribute);
        }


        // --------------------------------
        // Create the DATANODE elements ...
        // --------------------------------
        int col = 0;
        Iterator iter = select.getSymbols().iterator();
        while ( iter.hasNext() ) {
            Element dataElement = new Element(TagNames.Elements.DATA_ELEMENT);
            ElementSymbol symbol = (ElementSymbol) iter.next();
            String elementName = symbol.getName();
            Attribute dataType = null;
            try {
                dataType = new Attribute(TagNames.Attributes.TYPE, rmdata.getColumnTypeName(++col));
            } catch ( SQLException e ) {
                //
            }
            dataElement.setAttribute(dataType);
            dataElement.setText(elementName);
            selectElement.addContent(dataElement);
        }
        if ( parent != null ) {
            selectElement = parent.addContent(selectElement);
        }

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    private Element produceObject(Object object, Element parent) throws JDOMException, SQLException {


         // ----------------------
        // Create the Object element ...
        // ----------------------
        Element objectElement = new Element(TagNames.Elements.OBJECT);
        
        String result = null;
        if (object instanceof Blob || object instanceof Clob || object instanceof SQLXML) {
          
          if (object instanceof Clob){
            Clob c = (Clob)object;
            try {
              result = ObjectConverterUtil.convertToString(c.getAsciiStream());
          
        } catch (Throwable e) {
          // TODO Auto-generated catch block
          throw new SQLException(e);
        }
          } else if (object instanceof Blob){
                Blob b = (Blob)object;
                try {
                  result = ObjectConverterUtil.convertToString(b.getBinaryStream());
            
          } catch (Throwable e) {
            // TODO Auto-generated catch block
            throw new SQLException(e);
          }
            } else if (object instanceof SQLXML){
              SQLXML s = (SQLXML)object;
            try {
              result = ObjectConverterUtil.convertToString(s.getBinaryStream());
          
        } catch (Throwable e) {
          // TODO Auto-generated catch block
          throw new SQLException(e);
        }
            } 
        } else {
          result = object.toString();
        }
        
         objectElement.setText(result);


        
        if ( parent != null ) {
            objectElement = parent.addContent(objectElement);
        }

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    private Element produceMsg(String object, Element parent) throws JDOMException {


        // ----------------------
        // Create the String element ...
        // ----------------------
        Element stringElement = new Element(TagNames.Elements.STRING);
        stringElement.setText(object);
        if ( parent != null ) {
            stringElement = parent.addContent(stringElement);
        }


        return stringElement;

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    private Element produceMsg(Character object, Element parent) throws JDOMException {


        // ----------------------
        // Create the Character element ...
        // ----------------------
        Element charElement = new Element(TagNames.Elements.CHAR);
               
        String v = object.toString();
        if (v != null && v.length() != 0) {
            
      String toReplace = new String( new Character( (char)0x0).toString() );
      v.replaceAll(toReplace," ");
      charElement.setText(v.trim());


        }
        if ( parent != null ) {
            charElement = parent.addContent(charElement);
        }

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    private Element produceMsg(Byte object, Element parent) throws JDOMException {


        // ----------------------
        // Create the Byte element ...
        // ----------------------
        Element byteElement = new Element(TagNames.Elements.BYTE);
        byteElement.setText(object.toString());
        if ( parent != null ) {
            byteElement = parent.addContent(byteElement);
        }


        return byteElement;

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