Examples with DTM org.apache.xml.dtm.DTM used on opensource projects

Example 61 with DTM

use of org.apache.xml.dtm.DTM in project j2objc by google.

the class StepPattern method getProximityPosition.

/**
   * Get the proximity position index of the current node based on this
   * node test.
   *
   *
   * @param xctxt XPath runtime context.
   * @param predPos Which predicate we're evaluating of foo[1][2][3].
   * @param findLast If true, don't terminate when the context node is found.
   *
   * @return the proximity position index of the current node based on the
   *         node test.
   */
private final int getProximityPosition(XPathContext xctxt, int predPos, boolean findLast) {
    int pos = 0;
    int context = xctxt.getCurrentNode();
    DTM dtm = xctxt.getDTM(context);
    int parent = dtm.getParent(context);
    try {
        DTMAxisTraverser traverser = dtm.getAxisTraverser(Axis.CHILD);
        for (int child = traverser.first(parent); DTM.NULL != child; child = traverser.next(parent, child)) {
            try {
                xctxt.pushCurrentNode(child);
                if (NodeTest.SCORE_NONE != super.execute(xctxt, child)) {
                    boolean pass = true;
                    try {
                        xctxt.pushSubContextList(this);
                        for (int i = 0; i < predPos; i++) {
                            xctxt.pushPredicatePos(i);
                            try {
                                XObject pred = m_predicates[i].execute(xctxt);
                                try {
                                    if (XObject.CLASS_NUMBER == pred.getType()) {
                                        if ((pos + 1) != (int) pred.numWithSideEffects()) {
                                            pass = false;
                                            break;
                                        }
                                    } else if (!pred.boolWithSideEffects()) {
                                        pass = false;
                                        break;
                                    }
                                } finally {
                                    pred.detach();
                                }
                            } finally {
                                xctxt.popPredicatePos();
                            }
                        }
                    } finally {
                        xctxt.popSubContextList();
                    }
                    if (pass)
                        pos++;
                    if (!findLast && child == context) {
                        return pos;
                    }
                }
            } finally {
                xctxt.popCurrentNode();
            }
        }
    } catch (javax.xml.transform.TransformerException se) {
        // TODO: should keep throw sax exception...
        throw new java.lang.RuntimeException(se.getMessage());
    }
    return pos;
}

Example 62 with DTM

use of org.apache.xml.dtm.DTM 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 63 with DTM

use of org.apache.xml.dtm.DTM in project j2objc by google.

the class FuncUnparsedEntityURI 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 {
    String name = m_arg0.execute(xctxt).str();
    int context = xctxt.getCurrentNode();
    DTM dtm = xctxt.getDTM(context);
    int doc = dtm.getDocument();
    String uri = dtm.getUnparsedEntityURI(name);
    return new XString(uri);
}

Example 64 with DTM

use of org.apache.xml.dtm.DTM 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 65 with DTM

use of org.apache.xml.dtm.DTM in project j2objc by google.

the class XObject method rtf.

/**
   * Cast result object to a result tree fragment.
   *
   * @param support XPath context to use for the conversion
   *
   * @return the objec as a result tree fragment.
   */
public int rtf(XPathContext support) {
    int result = rtf();
    if (DTM.NULL == result) {
        DTM frag = support.createDocumentFragment();
        // %OPT%
        frag.appendTextChild(str());
        result = frag.getDocument();
    }
    return result;
}