Java Code Examples for org.apache.xpath.objects.XObject#str()

The following examples show how to use org.apache.xpath.objects.XObject#str() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: XalanXPathExecuter.java    From jasperreports with GNU Lesser General Public License v3.0 5 votes vote down vote up 
@Override
public Object selectObject(Node contextNode, String expression) throws JRException {
	try {
		Object value;
		XObject object = xpathAPI.eval(contextNode, expression);
		switch (object.getType()) {
			case XObject.CLASS_NODESET:
				value = object.nodeset().nextNode();
				break;
			case XObject.CLASS_BOOLEAN:
				value = object.bool();
				break;
			case XObject.CLASS_NUMBER:
				value = object.num();
				break;
			default:
				value = object.str();
				break;
		}
		return value;
	} catch (TransformerException e) {
		throw 
			new JRException(
				EXCEPTION_MESSAGE_KEY_XPATH_SELECTION_FAILURE,
				new Object[]{expression},
				e);
	}
}
Example 2
Source File: XalanNsAwareXPathExecuter.java    From jasperreports with GNU Lesser General Public License v3.0 5 votes vote down vote up 
@Override
public Object selectObject(Node contextNode, String expression)
		throws JRException {
	try {
		createNamespaceElement(contextNode, expression);
		Object value;
		XObject object = null; 
		if (namespaceElement != null) {	
			object = xpathAPI.eval(contextNode, expression, namespaceElement);
		} else {
			object = xpathAPI.eval(contextNode, expression);
		}
		switch (object.getType()) {
		case XObject.CLASS_NODESET:
			value = object.nodeset().nextNode();
			break;
		case XObject.CLASS_BOOLEAN:
			value = object.bool();
			break;
		case XObject.CLASS_NUMBER:
			value = object.num();
			break;
		default:
			value = object.str();
			break;
		}
		return value;
	} catch (TransformerException e) {
		throw 
			new JRException(
				EXCEPTION_MESSAGE_KEY_XPATH_SELECTION_FAILURE,
				new Object[]{expression},
				e);
	}
}
Example 3
Source File: XPathImpl.java    From j2objc with Apache License 2.0 5 votes vote down vote up 
private Object getResultAsType( XObject resultObject, QName returnType )
    throws javax.xml.transform.TransformerException {
    // XPathConstants.STRING
    if ( returnType.equals( XPathConstants.STRING ) ) { 
        return resultObject.str();
    }
    // XPathConstants.NUMBER
    if ( returnType.equals( XPathConstants.NUMBER ) ) { 
        return new Double ( resultObject.num());
    }
    // XPathConstants.BOOLEAN
    if ( returnType.equals( XPathConstants.BOOLEAN ) ) { 
        return new Boolean( resultObject.bool());
    }
    // XPathConstants.NODESET ---ORdered, UNOrdered???
    if ( returnType.equals( XPathConstants.NODESET ) ) { 
        return resultObject.nodelist();
    }
    // XPathConstants.NODE
    if ( returnType.equals( XPathConstants.NODE ) ) { 
        NodeIterator ni = resultObject.nodeset(); 
        //Return the first node, or null
        return ni.nextNode();
    }
    String fmsg = XSLMessages.createXPATHMessage(
            XPATHErrorResources.ER_UNSUPPORTED_RETURN_TYPE,
            new Object[] { returnType.toString()});
    throw new IllegalArgumentException( fmsg );
}
Example 4
Source File: XPathExpressionImpl.java    From j2objc with Apache License 2.0 5 votes vote down vote up 
private Object getResultAsType( XObject resultObject, QName returnType )
    throws javax.xml.transform.TransformerException {
    // XPathConstants.STRING
    if ( returnType.equals( XPathConstants.STRING ) ) {
        return resultObject.str();
    }
    // XPathConstants.NUMBER
    if ( returnType.equals( XPathConstants.NUMBER ) ) {
        return new Double ( resultObject.num());
    }
    // XPathConstants.BOOLEAN
    if ( returnType.equals( XPathConstants.BOOLEAN ) ) {
        return new Boolean( resultObject.bool());
    }
    // XPathConstants.NODESET ---ORdered, UNOrdered???
    if ( returnType.equals( XPathConstants.NODESET ) ) {
        return resultObject.nodelist();
    }
    // XPathConstants.NODE
    if ( returnType.equals( XPathConstants.NODE ) ) {
        NodeIterator ni = resultObject.nodeset();
        //Return the first node, or null
        return ni.nextNode();
    }
    // If isSupported check is already done then the execution path 
    // shouldn't come here. Being defensive
    String fmsg = XSLMessages.createXPATHMessage( 
            XPATHErrorResources.ER_UNSUPPORTED_RETURN_TYPE,
            new Object[] { returnType.toString()});
    throw new IllegalArgumentException ( fmsg );
}
Example 5
Source File: ElemCopyOf.java    From j2objc with Apache License 2.0 4 votes vote down vote up 
/**
 * The xsl:copy-of element can be used to insert a result tree
 * fragment into the result tree, without first converting it to
 * a string as xsl:value-of does (see [7.6.1 Generating Text with
 * xsl:value-of]).
 *
 * @param transformer non-null reference to the the current transform-time state.
 *
 * @throws TransformerException
 */
public void execute(
        TransformerImpl transformer)
          throws TransformerException
{
  try
  {
    XPathContext xctxt = transformer.getXPathContext();
    int sourceNode = xctxt.getCurrentNode();
    XObject value = m_selectExpression.execute(xctxt, sourceNode, this);

    SerializationHandler handler = transformer.getSerializationHandler();

    if (null != value)
                      {
      int type = value.getType();
      String s;

      switch (type)
      {
      case XObject.CLASS_BOOLEAN :
      case XObject.CLASS_NUMBER :
      case XObject.CLASS_STRING :
        s = value.str();

        handler.characters(s.toCharArray(), 0, s.length());
        break;
      case XObject.CLASS_NODESET :

        // System.out.println(value);
        DTMIterator nl = value.iter();

        // Copy the tree.
        DTMTreeWalker tw = new TreeWalker2Result(transformer, handler);
        int pos;

        while (DTM.NULL != (pos = nl.nextNode()))
        {
          DTM dtm = xctxt.getDTMManager().getDTM(pos);
          short t = dtm.getNodeType(pos);

          // If we just copy the whole document, a startDoc and endDoc get 
          // generated, so we need to only walk the child nodes.
          if (t == DTM.DOCUMENT_NODE)
          {
            for (int child = dtm.getFirstChild(pos); child != DTM.NULL;
                 child = dtm.getNextSibling(child))
            {
              tw.traverse(child);
            }
          }
          else if (t == DTM.ATTRIBUTE_NODE)
          {
            SerializerUtils.addAttribute(handler, pos);
          }
          else
          {
            tw.traverse(pos);
          }
        }
        // nl.detach();
        break;
      case XObject.CLASS_RTREEFRAG :
        SerializerUtils.outputResultTreeFragment(
          handler, value, transformer.getXPathContext());
        break;
      default :
        
        s = value.str();

        handler.characters(s.toCharArray(), 0, s.length());
        break;
      }
    }
                      
    // I don't think we want this.  -sb
    //  if (transformer.getDebug())
    //  transformer.getTraceManager().fireSelectedEvent(sourceNode, this,
    //  "endSelect", m_selectExpression, value);

  }
  catch(org.xml.sax.SAXException se)
  {
    throw new TransformerException(se);
  }

}