Examples with XMLString org.apache.xml.utils.XMLString used on opensource projects

Example 21 with XMLString

use of org.apache.xml.utils.XMLString in project j2objc by google.

the class DOM2DTM method getStringValue.

/**
   * Get the string-value of a node as a String object
   * (see http://www.w3.org/TR/xpath#data-model
   * for the definition of a node's string-value).
   *
   * @param nodeHandle The node ID.
   *
   * @return A string object that represents the string-value of the given node.
   */
public XMLString getStringValue(int nodeHandle) {
    int type = getNodeType(nodeHandle);
    Node node = getNode(nodeHandle);
    // directly.
    if (DTM.ELEMENT_NODE == type || DTM.DOCUMENT_NODE == type || DTM.DOCUMENT_FRAGMENT_NODE == type) {
        FastStringBuffer buf = StringBufferPool.get();
        String s;
        try {
            getNodeData(node, buf);
            s = (buf.length() > 0) ? buf.toString() : "";
        } finally {
            StringBufferPool.free(buf);
        }
        return m_xstrf.newstr(s);
    } else if (TEXT_NODE == type || CDATA_SECTION_NODE == type) {
        // If this is a DTM text node, it may be made of multiple DOM text
        // nodes -- including navigating into Entity References. DOM2DTM
        // records the first node in the sequence and requires that we
        // pick up the others when we retrieve the DTM node's value.
        //
        // %REVIEW% DOM Level 3 is expected to add a "whole text"
        // retrieval method which performs this function for us.
        FastStringBuffer buf = StringBufferPool.get();
        while (node != null) {
            buf.append(node.getNodeValue());
            node = logicalNextDOMTextNode(node);
        }
        String s = (buf.length() > 0) ? buf.toString() : "";
        StringBufferPool.free(buf);
        return m_xstrf.newstr(s);
    } else
        return m_xstrf.newstr(node.getNodeValue());
}

Example 22 with XMLString

use of org.apache.xml.utils.XMLString in project j2objc by google.

the class DTMDocumentImpl method getStringValue.

/**
         * Get the string-value of a node as a String object
         * (see http://www.w3.org/TR/xpath#data-model
         * for the definition of a node's string-value).
         *
         * @param nodeHandle The node ID.
         *
         * @return A string object that represents the string-value of the given node.
         */
public XMLString getStringValue(int nodeHandle) {
    // ###zaj - researching
    nodes.readSlot(nodeHandle, gotslot);
    int nodetype = gotslot[0] & 0xFF;
    String value = null;
    switch(nodetype) {
        case TEXT_NODE:
        case COMMENT_NODE:
        case CDATA_SECTION_NODE:
            value = m_char.getString(gotslot[2], gotslot[3]);
            break;
        case PROCESSING_INSTRUCTION_NODE:
        case ATTRIBUTE_NODE:
        case ELEMENT_NODE:
        case ENTITY_REFERENCE_NODE:
        default:
            break;
    }
    return m_xsf.newstr(value);
}

Example 23 with XMLString

use of org.apache.xml.utils.XMLString in project j2objc by google.

the class FuncSum method execute.

/**
   * Execute the function.  The function must return
   * a valid object.
   * @param xctxt The current execution context.
   * @return A valid XObject.
   *
   * @throws javax.xml.transform.TransformerException
   */
public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException {
    DTMIterator nodes = m_arg0.asIterator(xctxt, xctxt.getCurrentNode());
    double sum = 0.0;
    int pos;
    while (DTM.NULL != (pos = nodes.nextNode())) {
        DTM dtm = nodes.getDTM(pos);
        XMLString s = dtm.getStringValue(pos);
        if (null != s)
            sum += s.toDouble();
    }
    nodes.detach();
    return new XNumber(sum);
}

Example 24 with XMLString

use of org.apache.xml.utils.XMLString in project j2objc by google.

the class FunctionDef1Arg method getArg0AsNumber.

/**
   * Execute the first argument expression that is expected to return a
   * number.  If the argument is null, then get the number value from the
   * current context node.
   *
   * @param xctxt Runtime XPath context.
   *
   * @return The number value of the first argument, or the number value of the
   *         current context node if the first argument is null.
   *
   * @throws javax.xml.transform.TransformerException if an error occurs while
   *                                   executing the argument expression.
   */
protected double getArg0AsNumber(XPathContext xctxt) throws javax.xml.transform.TransformerException {
    if (null == m_arg0) {
        int currentNode = xctxt.getCurrentNode();
        if (DTM.NULL == currentNode)
            return 0;
        else {
            DTM dtm = xctxt.getDTM(currentNode);
            XMLString str = dtm.getStringValue(currentNode);
            return str.toDouble();
        }
    } else
        return m_arg0.execute(xctxt).num();
}

Example 25 with XMLString

use of org.apache.xml.utils.XMLString in project j2objc by google.

the class FuncSubstring method execute.

/**
   * Execute the function.  The function must return
   * a valid object.
   * @param xctxt The current execution context.
   * @return A valid XObject.
   *
   * @throws javax.xml.transform.TransformerException
   */
public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException {
    XMLString s1 = m_arg0.execute(xctxt).xstr();
    double start = m_arg1.execute(xctxt).num();
    int lenOfS1 = s1.length();
    XMLString substr;
    if (lenOfS1 <= 0)
        return XString.EMPTYSTRING;
    else {
        int startIndex;
        if (Double.isNaN(start)) {
            // Double.MIN_VALUE doesn't work with math below 
            // so just use a big number and hope I never get caught.
            start = -1000000;
            startIndex = 0;
        } else {
            start = Math.round(start);
            startIndex = (start > 0) ? (int) start - 1 : 0;
        }
        if (null != m_arg2) {
            double len = m_arg2.num(xctxt);
            int end = (int) (Math.round(len) + start) - 1;
            // Normalize end index.
            if (end < 0)
                end = 0;
            else if (end > lenOfS1)
                end = lenOfS1;
            if (startIndex > lenOfS1)
                startIndex = lenOfS1;
            substr = s1.substring(startIndex, end);
        } else {
            if (startIndex > lenOfS1)
                startIndex = lenOfS1;
            substr = s1.substring(startIndex);
        }
    }
    // cast semi-safe
    return (XString) substr;
}