Java Code Examples for com.sun.org.apache.xpath.internal.objects.XObject

The following examples show how to use com.sun.org.apache.xpath.internal.objects.XObject. These examples are extracted from open source projects. 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 Project: Bytecoder   Author: mirkosertic   File: FuncQname.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * 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
{

  int context = getArg0AsNode(xctxt);
  XObject val;

  if (DTM.NULL != context)
  {
    DTM dtm = xctxt.getDTM(context);
    String qname = dtm.getNodeNameX(context);
    val = (null == qname) ? XString.EMPTYSTRING : new XString(qname);
  }
  else
  {
    val = XString.EMPTYSTRING;
  }

  return val;
}
 
Example #2
Source Project: openjdk-jdk8u   Author: AdoptOpenJDK   File: XPathResultImpl.java    License: GNU General Public License v2.0 6 votes vote down vote up
/**
   * Given an XObject, determine the corresponding DOM XPath type
   *
   * @return type string
   */
  private short getTypeFromXObject(XObject object) {
      switch (object.getType()) {
        case XObject.CLASS_BOOLEAN: return BOOLEAN_TYPE;
        case XObject.CLASS_NODESET: return UNORDERED_NODE_ITERATOR_TYPE;
        case XObject.CLASS_NUMBER: return NUMBER_TYPE;
        case XObject.CLASS_STRING: return STRING_TYPE;
        // XPath 2.0 types
//          case XObject.CLASS_DATE:
//          case XObject.CLASS_DATETIME:
//          case XObject.CLASS_DTDURATION:
//          case XObject.CLASS_GDAY:
//          case XObject.CLASS_GMONTH:
//          case XObject.CLASS_GMONTHDAY:
//          case XObject.CLASS_GYEAR:
//          case XObject.CLASS_GYEARMONTH:
//          case XObject.CLASS_TIME:
//          case XObject.CLASS_YMDURATION: return STRING_TYPE; // treat all date types as strings?

        case XObject.CLASS_RTREEFRAG: return UNORDERED_NODE_ITERATOR_TYPE;
        case XObject.CLASS_NULL: return ANY_TYPE; // throw exception ?
        default: return ANY_TYPE; // throw exception ?
    }

  }
 
Example #3
Source Project: jdk8u60   Author: chenghanpeng   File: StepPattern.java    License: GNU General Public License v2.0 6 votes vote down vote up
/**
 * Get the match score of the given node.
 *
 * @param xctxt The XPath runtime context.
 * @param context The node to be tested.
 *
 * @return {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NODETEST},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NONE},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NSWILD},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_QNAME}, or
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_OTHER}.
 *
 * @throws javax.xml.transform.TransformerException
 */
public double getMatchScore(XPathContext xctxt, int context)
        throws javax.xml.transform.TransformerException
{

  xctxt.pushCurrentNode(context);
  xctxt.pushCurrentExpressionNode(context);

  try
  {
    XObject score = execute(xctxt);

    return score.num();
  }
  finally
  {
    xctxt.popCurrentNode();
    xctxt.popCurrentExpressionNode();
  }

  // return XPath.MATCH_SCORE_NONE;
}
 
Example #4
Source Project: JDKSourceCode1.8   Author: wupeixuan   File: VariableStack.java    License: MIT License 6 votes vote down vote up
/**
 * Get a local variable or parameter in the current stack frame.
 *
 *
 * @param xctxt The XPath context, which must be passed in order to
 * lazy evaluate variables.
 *
 * @param index Local variable index relative to the current stack
 * frame bottom.
 *
 * @return The value of the variable.
 *
 * @throws TransformerException
 */
public XObject getLocalVariable(XPathContext xctxt, int index)
        throws TransformerException
{

  index += _currentFrameBottom;

  XObject val = _stackFrames[index];

  if(null == val)
    throw new TransformerException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_VARIABLE_ACCESSED_BEFORE_BIND, null),
                   xctxt.getSAXLocator());
    // "Variable accessed before it is bound!", xctxt.getSAXLocator());

  // Lazy execution of variables.
  if (val.getType() == XObject.CLASS_UNRESOLVEDVARIABLE)
    return (_stackFrames[index] = val.execute(xctxt));

  return val;
}
 
Example #5
Source Project: jdk8u60   Author: chenghanpeng   File: VariableStack.java    License: GNU General Public License v2.0 6 votes vote down vote up
/**
 * Get a local variable or parameter in the current stack frame.
 *
 *
 * @param xctxt The XPath context, which must be passed in order to
 * lazy evaluate variables.
 *
 * @param index Local variable index relative to the current stack
 * frame bottom.
 *
 * @return The value of the variable.
 *
 * @throws TransformerException
 */
public XObject getLocalVariable(XPathContext xctxt, int index, boolean destructiveOK)
        throws TransformerException
{

  index += _currentFrameBottom;

  XObject val = _stackFrames[index];

  if(null == val)
    throw new TransformerException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_VARIABLE_ACCESSED_BEFORE_BIND, null),
                   xctxt.getSAXLocator());
    // "Variable accessed before it is bound!", xctxt.getSAXLocator());

  // Lazy execution of variables.
  if (val.getType() == XObject.CLASS_UNRESOLVEDVARIABLE)
    return (_stackFrames[index] = val.execute(xctxt));

  return destructiveOK ? val : val.getFresh();
}
 
Example #6
Source Project: openjdk-jdk8u-backup   Author: AdoptOpenJDK   File: FuncCount.java    License: GNU General Public License v2.0 6 votes vote down vote up
/**
   * 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 nl = m_arg0.asIterator(xctxt, xctxt.getCurrentNode());

//    // We should probably make a function on the iterator for this,
//    // as a given implementation could optimize.
//    int i = 0;
//
//    while (DTM.NULL != nl.nextNode())
//    {
//      i++;
//    }
//    nl.detach();
        DTMIterator nl = m_arg0.asIterator(xctxt, xctxt.getCurrentNode());
        int i = nl.getLength();
        nl.detach();

    return new XNumber((double) i);
  }
 
Example #7
Source Project: jdk1.8-source-analysis   Author: raysonfang   File: FuncQname.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * 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
{

  int context = getArg0AsNode(xctxt);
  XObject val;

  if (DTM.NULL != context)
  {
    DTM dtm = xctxt.getDTM(context);
    String qname = dtm.getNodeNameX(context);
    val = (null == qname) ? XString.EMPTYSTRING : new XString(qname);
  }
  else
  {
    val = XString.EMPTYSTRING;
  }

  return val;
}
 
Example #8
Source Project: jdk8u60   Author: chenghanpeng   File: FuncGenerateId.java    License: GNU General Public License v2.0 6 votes vote down vote up
/**
 * 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
{

  int which = getArg0AsNode(xctxt);

  if (DTM.NULL != which)
  {
    // Note that this is a different value than in previous releases
    // of Xalan. It's sensitive to the exact encoding of the node
    // handle anyway, so fighting to maintain backward compatability
    // really didn't make sense; it may change again as we continue
    // to experiment with balancing document and node numbers within
    // that value.
    return new XString("N" + Integer.toHexString(which).toUpperCase());
  }
  else
    return XString.EMPTYSTRING;
}
 
Example #9
Source Project: openjdk-8-source   Author: keerath   File: XPathResultImpl.java    License: GNU General Public License v2.0 6 votes vote down vote up
/**
   * Given an XObject, determine the corresponding DOM XPath type
   *
   * @return type string
   */
  private short getTypeFromXObject(XObject object) {
      switch (object.getType()) {
        case XObject.CLASS_BOOLEAN: return BOOLEAN_TYPE;
        case XObject.CLASS_NODESET: return UNORDERED_NODE_ITERATOR_TYPE;
        case XObject.CLASS_NUMBER: return NUMBER_TYPE;
        case XObject.CLASS_STRING: return STRING_TYPE;
        // XPath 2.0 types
//          case XObject.CLASS_DATE:
//          case XObject.CLASS_DATETIME:
//          case XObject.CLASS_DTDURATION:
//          case XObject.CLASS_GDAY:
//          case XObject.CLASS_GMONTH:
//          case XObject.CLASS_GMONTHDAY:
//          case XObject.CLASS_GYEAR:
//          case XObject.CLASS_GYEARMONTH:
//          case XObject.CLASS_TIME:
//          case XObject.CLASS_YMDURATION: return STRING_TYPE; // treat all date types as strings?

        case XObject.CLASS_RTREEFRAG: return UNORDERED_NODE_ITERATOR_TYPE;
        case XObject.CLASS_NULL: return ANY_TYPE; // throw exception ?
        default: return ANY_TYPE; // throw exception ?
    }

  }
 
Example #10
Source Project: openjdk-jdk9   Author: AdoptOpenJDK   File: FuncCurrent.java    License: GNU General Public License v2.0 6 votes vote down vote up
/**
 * 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
{

  SubContextList subContextList = xctxt.getCurrentNodeList();
  int currentNode = DTM.NULL;

  if (null != subContextList) {
      if (subContextList instanceof PredicatedNodeTest) {
          LocPathIterator iter = ((PredicatedNodeTest)subContextList)
                                                        .getLocPathIterator();
          currentNode = iter.getCurrentContextNode();
       } else if(subContextList instanceof StepPattern) {
         throw new RuntimeException(XSLMessages.createMessage(
            XSLTErrorResources.ER_PROCESSOR_ERROR,null));
       }
  } else {
      // not predicate => ContextNode == CurrentNode
      currentNode = xctxt.getContextNode();
  }
  return new XNodeSet(currentNode, xctxt.getDTMManager());
}
 
Example #11
Source Project: TencentKona-8   Author: Tencent   File: FuncGenerateId.java    License: GNU General Public License v2.0 6 votes vote down vote up
/**
 * 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
{

  int which = getArg0AsNode(xctxt);

  if (DTM.NULL != which)
  {
    // Note that this is a different value than in previous releases
    // of Xalan. It's sensitive to the exact encoding of the node
    // handle anyway, so fighting to maintain backward compatability
    // really didn't make sense; it may change again as we continue
    // to experiment with balancing document and node numbers within
    // that value.
    return new XString("N" + Integer.toHexString(which).toUpperCase());
  }
  else
    return XString.EMPTYSTRING;
}
 
Example #12
Source Project: Bytecoder   Author: mirkosertic   File: XPathResultImpl.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Map the specified class type to the internal result type
 *
 * @param <T> The expected class type.
 * @param type the class type
 * @return the internal XObject type.
 */
static <T> int classToInternalType(Class<T> type) {
    if (type.isAssignableFrom(Boolean.class)) {
        return XObject.CLASS_BOOLEAN;
    } else if (Number.class.isAssignableFrom(type)) {
        return XObject.CLASS_NUMBER;
    } else if (type.isAssignableFrom(String.class)) {
        return XObject.CLASS_STRING;
    } else if (type.isAssignableFrom(XPathNodes.class)) {
        return XObject.CLASS_NODESET;
    } else if (type.isAssignableFrom(Node.class)) {
        return XObject.CLASS_RTREEFRAG;
    }
    return XObject.CLASS_NULL;
}
 
Example #13
Source Project: Bytecoder   Author: mirkosertic   File: FunctionPattern.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Test a node to see if it matches the given node test.
 *
 * @param xctxt XPath runtime context.
 *
 * @return {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NODETEST},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NONE},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NSWILD},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_QNAME}, or
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_OTHER}.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt, int context)
        throws javax.xml.transform.TransformerException
{

  DTMIterator nl = m_functionExpr.asIterator(xctxt, context);
  XNumber score = SCORE_NONE;

  if (null != nl)
  {
    int n;

    while (DTM.NULL != (n = nl.nextNode()))
    {
      score = (n == context) ? SCORE_OTHER : SCORE_NONE;

      if (score == SCORE_OTHER)
      {
        context = n;

        break;
      }
    }

    // nl.detach();
  }
  nl.detach();

  return score;
}
 
Example #14
Source Project: Bytecoder   Author: mirkosertic   File: FuncLang.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * 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 lang = m_arg0.execute(xctxt).str();
  int parent = xctxt.getCurrentNode();
  boolean isLang = false;
  DTM dtm = xctxt.getDTM(parent);

  while (DTM.NULL != parent)
  {
    if (DTM.ELEMENT_NODE == dtm.getNodeType(parent))
    {
      int langAttr = dtm.getAttributeNode(parent, "http://www.w3.org/XML/1998/namespace", "lang");

      if (DTM.NULL != langAttr)
      {
        String langVal = dtm.getNodeValue(langAttr);
        // %OPT%
        if (langVal.toLowerCase().startsWith(lang.toLowerCase()))
        {
          int valLen = lang.length();

          if ((langVal.length() == valLen)
                  || (langVal.charAt(valLen) == '-'))
          {
            isLang = true;
          }
        }

        break;
      }
    }

    parent = dtm.getParent(parent);
  }

  return isLang ? XBoolean.S_TRUE : XBoolean.S_FALSE;
}
 
Example #15
Source Project: JDKSourceCode1.8   Author: wupeixuan   File: XPathAPI.java    License: MIT License 5 votes vote down vote up
/**
 *  Use an XPath string to select a nodelist.
 *  XPath namespace prefixes are resolved from the namespaceNode.
 *
 *  @param contextNode The node to start searching from.
 *  @param str A valid XPath string.
 *  @param namespaceNode The node from which prefixes in the XPath will be resolved to namespaces.
 *  @return A NodeIterator, should never be null.
 *
 * @throws TransformerException
 */
public static NodeIterator selectNodeIterator(
        Node contextNode, String str, Node namespaceNode)
          throws TransformerException
{

  // Execute the XPath, and have it return the result
  XObject list = eval(contextNode, str, namespaceNode);

  // Have the XObject return its result as a NodeSetDTM.
  return list.nodeset();
}
 
Example #16
Source Project: openjdk-8-source   Author: keerath   File: XPathImpl.java    License: GNU General Public License v2.0 5 votes vote down vote up
private XObject eval(String expression, Object contextItem)
    throws javax.xml.transform.TransformerException {
    com.sun.org.apache.xpath.internal.XPath xpath = new com.sun.org.apache.xpath.internal.XPath( expression,
        null, prefixResolver, com.sun.org.apache.xpath.internal.XPath.SELECT );
    com.sun.org.apache.xpath.internal.XPathContext xpathSupport = null;
    if ( functionResolver != null ) {
        JAXPExtensionsProvider jep = new JAXPExtensionsProvider(
                functionResolver, featureSecureProcessing, featureManager );
        xpathSupport = new com.sun.org.apache.xpath.internal.XPathContext( jep );
    } else {
        xpathSupport = new com.sun.org.apache.xpath.internal.XPathContext();
    }

    XObject xobj = null;

    xpathSupport.setVarStack(new JAXPVariableStack(variableResolver));

    // If item is null, then we will create a a Dummy contextNode
    if ( contextItem instanceof Node ) {
        xobj = xpath.execute (xpathSupport, (Node)contextItem,
                prefixResolver );
    } else {
        xobj = xpath.execute ( xpathSupport, DTM.NULL, prefixResolver );
    }

    return xobj;
}
 
Example #17
Source Project: jdk8u60   Author: chenghanpeng   File: UnionChildIterator.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * Test whether a specified node is visible in the logical view of a
 * TreeWalker or NodeIterator. This function will be called by the
 * implementation of TreeWalker and NodeIterator; it is not intended to
 * be called directly from user code.
 * @param n  The node to check to see if it passes the filter or not.
 * @return  a constant to determine whether the node is accepted,
 *   rejected, or skipped, as defined  above .
 */
public short acceptNode(int n)
{
  XPathContext xctxt = getXPathContext();
  try
  {
    xctxt.pushCurrentNode(n);
    for (int i = 0; i < m_nodeTests.length; i++)
    {
      PredicatedNodeTest pnt = m_nodeTests[i];
      XObject score = pnt.execute(xctxt, n);
      if (score != NodeTest.SCORE_NONE)
      {
        // Note that we are assuming there are no positional predicates!
        if (pnt.getPredicateCount() > 0)
        {
          if (pnt.executePredicates(n, xctxt))
            return DTMIterator.FILTER_ACCEPT;
        }
        else
          return DTMIterator.FILTER_ACCEPT;

      }
    }
  }
  catch (javax.xml.transform.TransformerException se)
  {

    // TODO: Fix this.
    throw new RuntimeException(se.getMessage());
  }
  finally
  {
    xctxt.popCurrentNode();
  }
  return DTMIterator.FILTER_SKIP;
}
 
Example #18
Source Project: hottub   Author: dsrg-uoft   File: XPathImpl.java    License: GNU General Public License v2.0 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 #19
Source Project: TencentKona-8   Author: Tencent   File: XPathAPI.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 *  Use an XPath string to select a nodelist.
 *  XPath namespace prefixes are resolved from the namespaceNode.
 *
 *  @param contextNode The node to start searching from.
 *  @param str A valid XPath string.
 *  @param namespaceNode The node from which prefixes in the XPath will be resolved to namespaces.
 *  @return A NodeIterator, should never be null.
 *
 * @throws TransformerException
 */
public static NodeIterator selectNodeIterator(
        Node contextNode, String str, Node namespaceNode)
          throws TransformerException
{

  // Execute the XPath, and have it return the result
  XObject list = eval(contextNode, str, namespaceNode);

  // Have the XObject return its result as a NodeSetDTM.
  return list.nodeset();
}
 
Example #20
Source Project: jdk1.8-source-analysis   Author: raysonfang   File: Arg.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Construct a parameter argument.
 *
 * @param qname Name of the argument, expressed as a QName object.
 * @param val Value of the argument, expressed as an XObject
 * @param isFromWithParam True if this is a parameter variable.
 */
public Arg(QName qname, XObject val, boolean isFromWithParam)
{

  m_qname = qname;
  m_val = val;
  m_isFromWithParam = isFromWithParam;
  m_isVisible = !isFromWithParam;
  m_expression = null;
}
 
Example #21
Source Project: openjdk-8-source   Author: keerath   File: UnionChildIterator.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * Test whether a specified node is visible in the logical view of a
 * TreeWalker or NodeIterator. This function will be called by the
 * implementation of TreeWalker and NodeIterator; it is not intended to
 * be called directly from user code.
 * @param n  The node to check to see if it passes the filter or not.
 * @return  a constant to determine whether the node is accepted,
 *   rejected, or skipped, as defined  above .
 */
public short acceptNode(int n)
{
  XPathContext xctxt = getXPathContext();
  try
  {
    xctxt.pushCurrentNode(n);
    for (int i = 0; i < m_nodeTests.length; i++)
    {
      PredicatedNodeTest pnt = m_nodeTests[i];
      XObject score = pnt.execute(xctxt, n);
      if (score != NodeTest.SCORE_NONE)
      {
        // Note that we are assuming there are no positional predicates!
        if (pnt.getPredicateCount() > 0)
        {
          if (pnt.executePredicates(n, xctxt))
            return DTMIterator.FILTER_ACCEPT;
        }
        else
          return DTMIterator.FILTER_ACCEPT;

      }
    }
  }
  catch (javax.xml.transform.TransformerException se)
  {

    // TODO: Fix this.
    throw new RuntimeException(se.getMessage());
  }
  finally
  {
    xctxt.popCurrentNode();
  }
  return DTMIterator.FILTER_SKIP;
}
 
Example #22
Source Project: jdk8u60   Author: chenghanpeng   File: XPath.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * Get the match score of the given node.
 *
 * @param xctxt XPath runtime context.
 * @param context The current source tree context node.
 *
 * @return score, one of {@link #MATCH_SCORE_NODETEST},
 * {@link #MATCH_SCORE_NONE}, {@link #MATCH_SCORE_OTHER},
 * or {@link #MATCH_SCORE_QNAME}.
 *
 * @throws javax.xml.transform.TransformerException
 */
public double getMatchScore(XPathContext xctxt, int context)
        throws javax.xml.transform.TransformerException
{

  xctxt.pushCurrentNode(context);
  xctxt.pushCurrentExpressionNode(context);

  try
  {
    XObject score = m_mainExp.execute(xctxt);

    if (DEBUG_MATCHES)
    {
      DTM dtm = xctxt.getDTM(context);
      System.out.println("score: " + score.num() + " for "
                         + dtm.getNodeName(context) + " for xpath "
                         + this.getPatternString());
    }

    return score.num();
  }
  finally
  {
    xctxt.popCurrentNode();
    xctxt.popCurrentExpressionNode();
  }

  // return XPath.MATCH_SCORE_NONE;
}
 
Example #23
Source Project: hottub   Author: dsrg-uoft   File: VariableStack.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * Reset the stack to a start position.
 *
 * @return the total size of the execution stack.
 */
public void reset()
{

  _frameTop = 0;
  _linksTop = 0;

  // Adding one here to the stack of frame positions will allow us always
  // to look one under without having to check if we're at zero.
  // (As long as the caller doesn't screw up link/unlink.)
  _links[_linksTop++] = 0;
  _stackFrames = new XObject[_stackFrames.length];
}
 
Example #24
Source Project: openjdk-jdk8u   Author: AdoptOpenJDK   File: UnionPattern.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * Test a node to see if it matches any of the patterns in the union.
 *
 * @param xctxt XPath runtime context.
 *
 * @return {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NODETEST},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NONE},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NSWILD},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_QNAME}, or
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_OTHER}.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException
{

  XObject bestScore = null;
  int n = m_patterns.length;

  for (int i = 0; i < n; i++)
  {
    XObject score = m_patterns[i].execute(xctxt);

    if (score != NodeTest.SCORE_NONE)
    {
      if (null == bestScore)
        bestScore = score;
      else if (score.num() > bestScore.num())
        bestScore = score;
    }
  }

  if (null == bestScore)
  {
    bestScore = NodeTest.SCORE_NONE;
  }

  return bestScore;
}
 
Example #25
Source Project: hottub   Author: dsrg-uoft   File: Equals.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public boolean bool(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{
  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  boolean result = left.equals(right) ? true : false;
      left.detach();
      right.detach();
  return result;
}
 
Example #26
Source Project: openjdk-jdk9   Author: AdoptOpenJDK   File: XPathResultImpl.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * Read the XObject and set values in accordance with the result type
 * @param resultObject  internal XPath result object
 * @throws TransformerException  if there is an error reading the XPath
 * result.
 */
private void getResult(XObject resultObject) throws TransformerException {
    switch (resultType) {
        case XObject.CLASS_BOOLEAN:
            boolValue = resultObject.bool();
            mapToType = XPathResultType.BOOLEAN;
            break;
        case XObject.CLASS_NUMBER:
            numValue = resultObject.num();
            mapToType = XPathResultType.NUMBER;
            break;
        case XObject.CLASS_STRING:
            strValue = resultObject.str();
            mapToType = XPathResultType.STRING;
            break;
        case XObject.CLASS_NODESET:
            mapToType = XPathResultType.NODESET;
            nodeList = resultObject.nodelist();
            break;
        case XObject.CLASS_RTREEFRAG:  //NODE
            mapToType = XPathResultType.NODE;
            NodeIterator ni = resultObject.nodeset();
            //Return the first node, or null
            node = ni.nextNode();
            break;
    }
}
 
Example #27
Source Project: TencentKona-8   Author: Tencent   File: XPathAPI.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 *  Use an XPath string to select a nodelist.
 *  XPath namespace prefixes are resolved from the namespaceNode.
 *
 *  @param contextNode The node to start searching from.
 *  @param str A valid XPath string.
 *  @param namespaceNode The node from which prefixes in the XPath will be resolved to namespaces.
 *  @return A NodeIterator, should never be null.
 *
 * @throws TransformerException
 */
public static NodeList selectNodeList(
        Node contextNode, String str, Node namespaceNode)
          throws TransformerException
{

  // Execute the XPath, and have it return the result
  XObject list = eval(contextNode, str, namespaceNode);

  // Return a NodeList.
  return list.nodelist();
}
 
Example #28
Source Project: hottub   Author: dsrg-uoft   File: FuncRound.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * 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
{
        final XObject obj = m_arg0.execute(xctxt);
        final double val= obj.num();
        if (val >= -0.5 && val < 0) return new XNumber(-0.0);
        if (val == 0.0) return new XNumber(val);
        return new XNumber(java.lang.Math.floor(val
                                          + 0.5));
}
 
Example #29
Source Project: jdk1.8-source-analysis   Author: raysonfang   File: XPathAPI.java    License: Apache License 2.0 5 votes vote down vote up
/**
 *  Use an XPath string to select a nodelist.
 *  XPath namespace prefixes are resolved from the namespaceNode.
 *
 *  @param contextNode The node to start searching from.
 *  @param str A valid XPath string.
 *  @param namespaceNode The node from which prefixes in the XPath will be resolved to namespaces.
 *  @return A NodeIterator, should never be null.
 *
 * @throws TransformerException
 */
public static NodeList selectNodeList(
        Node contextNode, String str, Node namespaceNode)
          throws TransformerException
{

  // Execute the XPath, and have it return the result
  XObject list = eval(contextNode, str, namespaceNode);

  // Return a NodeList.
  return list.nodelist();
}
 
Example #30
Source Project: hottub   Author: dsrg-uoft   File: FunctionPattern.java    License: GNU General Public License v2.0 5 votes vote down vote up
/**
 * Test a node to see if it matches the given node test.
 *
 * @param xctxt XPath runtime context.
 *
 * @return {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NODETEST},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NONE},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NSWILD},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_QNAME}, or
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_OTHER}.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt, int context,
                       DTM dtm, int expType)
        throws javax.xml.transform.TransformerException
{

  DTMIterator nl = m_functionExpr.asIterator(xctxt, context);
  XNumber score = SCORE_NONE;

  if (null != nl)
  {
    int n;

    while (DTM.NULL != (n = nl.nextNode()))
    {
      score = (n == context) ? SCORE_OTHER : SCORE_NONE;

      if (score == SCORE_OTHER)
      {
        context = n;

        break;
      }
    }

    nl.detach();
  }

  return score;
}