Java XSLMessages.createXPATHMessage方法代码示例

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * 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;
}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * Copy NodeList members into this nodelist, adding in
 * document order.  Null references are not added.
 *
 * @param iterator DTMIterator which yields the nodes to be added.
 * @throws RuntimeException thrown if this NodeSetDTM is not of 
 * a mutable type.
 */
public void addNodes(DTMIterator iterator)
{

  if (!m_mutable)
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");

  if (null != iterator)  // defensive to fix a bug that Sanjiva reported.
  {
    int obj;

    while (DTM.NULL != (obj = iterator.nextNode()))
    {
      addElement(obj);
    }
  }

  // checkDups();
}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * Copy NodeList members into this nodelist, adding in
 * document order.  If a node is null, don't add it.
 *
 * @param nodelist List of nodes which should now be referenced by
 * this NodeSet.
 * @throws RuntimeException thrown if this NodeSet is not of 
 * a mutable type.
 */
public void addNodes(NodeList nodelist)
{

  if (!m_mutable)
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESET_NOT_MUTABLE, null)); //"This NodeSet is not mutable!");

  if (null != nodelist)  // defensive to fix a bug that Sanjiva reported.
  {
    int nChildren = nodelist.getLength();

    for (int i = 0; i < nChildren; i++)
    {
      Node obj = nodelist.item(i);

      if (null != obj)
      {
        addElement(obj);
      }
    }
  }

  // checkDups();
}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * Notify the user of an error, and probably throw an
 * exception.
 *
 * @param msg An error msgkey that corresponds to one of the constants found 
 *            in {@link org.apache.xpath.res.XPATHErrorResources}, which is 
 *            a key for a format string.
 * @param args An array of arguments represented in the format string, which 
 *             may be null.
 *
 * @throws TransformerException if the current ErrorListoner determines to 
 *                              throw an exception.
 */
void error(String msg, Object[] args) throws TransformerException
{

  String fmsg = XSLMessages.createXPATHMessage(msg, args);
  ErrorListener ehandler = this.getErrorListener();

  TransformerException te = new TransformerException(fmsg, m_sourceLocator);
  if (null != ehandler)
  {
    // TO DO: Need to get stylesheet Locator from here.
    ehandler.fatalError(te);
  }
  else
  {
    // System.err.println(fmsg);
    throw te;
  }
}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * Is the extension function available?
 */

public boolean functionAvailable(String ns, String funcName)
      throws javax.xml.transform.TransformerException {
  try {
    if ( funcName == null ) {
        String fmsg = XSLMessages.createXPATHMessage( 
            XPATHErrorResources.ER_ARG_CANNOT_BE_NULL,
            new Object[] {"Function Name"} );
        throw new NullPointerException ( fmsg ); 
    }
    //Find the XPathFunction corresponding to namespace and funcName
    javax.xml.namespace.QName myQName = new QName( ns, funcName );
    javax.xml.xpath.XPathFunction xpathFunction = 
        resolver.resolveFunction ( myQName, 0 );
    if (  xpathFunction == null ) {
        return false;
    }
    return true;
  } catch ( Exception e ) {
    return false;
  }
   

}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * Construct an XPath object.  
 *
 * (Needs review -sc) This method initializes an XPathParser/
 * Compiler and compiles the expression.
 * @param exprString The XPath expression.
 * @param locator The location of the expression, may be null.
 * @param prefixResolver A prefix resolver to use to resolve prefixes to 
 *                       namespace URIs.
 * @param type one of {@link #SELECT} or {@link #MATCH}.
 * @param errorListener The error listener, or null if default should be used.
 *
 * @throws javax.xml.transform.TransformerException if syntax or other error.
 */
public XPath(
        String exprString, SourceLocator locator, 
        PrefixResolver prefixResolver, int type,
        ErrorListener errorListener, FunctionTable aTable)
          throws javax.xml.transform.TransformerException
{ 
  m_funcTable = aTable;     
  if(null == errorListener)
    errorListener = new org.apache.xml.utils.DefaultErrorHandler();
  
  m_patternString = exprString;

  XPathParser parser = new XPathParser(errorListener, locator);
  Compiler compiler = new Compiler(errorListener, locator, m_funcTable);

  if (SELECT == type)
    parser.initXPath(compiler, exprString, prefixResolver);
  else if (MATCH == type)
    parser.initMatchPattern(compiler, exprString, prefixResolver);
  else
    throw new RuntimeException(XSLMessages.createXPATHMessage(
          XPATHErrorResources.ER_CANNOT_DEAL_XPATH_TYPE, 
          new Object[]{Integer.toString(type)})); 
          //"Can not deal with XPath type: " + type);

  // System.out.println("----------------");
  Expression expr = compiler.compile(0);

  // System.out.println("expr: "+expr);
  this.setExpression(expr);
  
  if((null != locator) && locator instanceof ExpressionNode)
  {
  	expr.exprSetParent((ExpressionNode)locator);
  }

}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
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 );
}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * Inserts the specified node in this vector at the specified index.
 * Each component in this vector with an index greater or equal to
 * the specified index is shifted upward to have an index one greater
 * than the value it had previously.
 *
 * @param value Node to insert
 * @param at Position where to insert
 */
public void insertElementAt(Node value, int at)
{
  if (!m_mutable)
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESET_NOT_MUTABLE, null)); //"This NodeSet is not mutable!");

  if (null == m_map)
  {
    m_map = new Node[m_blocksize];
    m_mapSize = m_blocksize;
  }
  else if ((m_firstFree + 1) >= m_mapSize)
  {
    m_mapSize += m_blocksize;

    Node newMap[] = new Node[m_mapSize];

    System.arraycopy(m_map, 0, newMap, 0, m_firstFree + 1);

    m_map = newMap;
  }

  if (at <= (m_firstFree - 1))
  {
    System.arraycopy(m_map, at, m_map, at + 1, m_firstFree - at);
  }

  m_map[at] = value;

  m_firstFree++;
}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * Sets the component at the specified index of this vector to be the
 * specified object. The previous component at that position is discarded.
 *
 * The index must be a value greater than or equal to 0 and less
 * than the current size of the vector.
 *
 * @param node Node to set
 * @param index Index of where to set the node
 */
public void setElementAt(Node node, int index)
{
  if (!m_mutable)
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESET_NOT_MUTABLE, null)); //"This NodeSet is not mutable!");

  if (null == m_map)
  {
    m_map = new Node[m_blocksize];
    m_mapSize = m_blocksize;
  }

  m_map[index] = node;
}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * <p>Establishes a variable resolver.</p>
 *
 * @param resolver Variable Resolver
 */
public void setXPathVariableResolver(XPathVariableResolver resolver) {
    if ( resolver == null ) {
        String fmsg = XSLMessages.createXPATHMessage( 
                XPATHErrorResources.ER_ARG_CANNOT_BE_NULL,
                new Object[] {"XPathVariableResolver"} );
        throw new NullPointerException( fmsg );
    }
    this.variableResolver = resolver;
}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
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 );
}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * <p>Establishes a namespace context.</p>
 *
 * @param nsContext Namespace context to use
 */
public void setNamespaceContext(NamespaceContext nsContext) {
    if ( nsContext == null ) {
        String fmsg = XSLMessages.createXPATHMessage( 
                XPATHErrorResources.ER_ARG_CANNOT_BE_NULL,
                new Object[] {"NamespaceContext"} );
        throw new NullPointerException( fmsg ); 
    }
    this.namespaceContext = nsContext;
    this.prefixResolver = new JAXPPrefixResolver ( nsContext );
}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * If an index is requested, NodeSetDTM will call this method
 * to run the iterator to the index.  By default this sets
 * m_next to the index.  If the index argument is -1, this
 * signals that the iterator should be run to the end.
 *
 * @param index Position to advance (or retreat) to, with
 * 0 requesting the reset ("fresh") position and -1 (or indeed
 * any out-of-bounds value) requesting the final position.
 * @throws RuntimeException thrown if this NodeSetDTM is not
 * one of the types which supports indexing/counting.
 */
public void runTo(int index)
{

  if (!m_cacheNodes)
    throw new RuntimeException(
      XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_CANNOT_INDEX, null)); //"This NodeSetDTM can not do indexing or counting functions!");

  if ((index >= 0) && (m_next < m_firstFree))
    m_next = index;
  else
    m_next = m_firstFree - 1;
}
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * Special purpose function to see if we can optimize the pattern for 
 * a DescendantIterator.
 *
 * @param compiler non-null reference to compiler object that has processed
 *                 the XPath operations into an opcode map.
 * @param stepOpCodePos The opcode position for the step.
 *
 * @return 32 bits as an integer that give information about the location
 * path as a whole.
 *
 * @throws javax.xml.transform.TransformerException
 */
public static int getAxisFromStep(
        Compiler compiler, int stepOpCodePos)
          throws javax.xml.transform.TransformerException
{

  int stepType = compiler.getOp(stepOpCodePos);

  switch (stepType)
  {
  case OpCodes.FROM_FOLLOWING :
    return Axis.FOLLOWING;
  case OpCodes.FROM_FOLLOWING_SIBLINGS :
    return Axis.FOLLOWINGSIBLING;
  case OpCodes.FROM_PRECEDING :
    return Axis.PRECEDING;
  case OpCodes.FROM_PRECEDING_SIBLINGS :
    return Axis.PRECEDINGSIBLING;
  case OpCodes.FROM_PARENT :
    return Axis.PARENT;
  case OpCodes.FROM_NAMESPACE :
    return Axis.NAMESPACE;
  case OpCodes.FROM_ANCESTORS :
    return Axis.ANCESTOR;
  case OpCodes.FROM_ANCESTORS_OR_SELF :
    return Axis.ANCESTORORSELF;
  case OpCodes.FROM_ATTRIBUTES :
    return Axis.ATTRIBUTE;
  case OpCodes.FROM_ROOT :
    return Axis.ROOT;
  case OpCodes.FROM_CHILDREN :
    return Axis.CHILD;
  case OpCodes.FROM_DESCENDANTS_OR_SELF :
    return Axis.DESCENDANTORSELF;
  case OpCodes.FROM_DESCENDANTS :
    return Axis.DESCENDANT;
  case OpCodes.FROM_SELF :
    return Axis.SELF;
  case OpCodes.OP_EXTFUNCTION :
  case OpCodes.OP_FUNCTION :
  case OpCodes.OP_GROUP :
  case OpCodes.OP_VARIABLE :
    return Axis.FILTEREDLIST;
  }

  throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NULL_ERROR_HANDLER, new Object[]{Integer.toString(stepType)})); //"Programmer's assertion: unknown opcode: "
                             //+ stepType);
 }
 

import org.apache.xalan.res.XSLMessages; //导入方法依赖的package包/类
/**
 * Add the node into a vector of nodes where it should occur in
 * document order.
 * @param node The node to be added.
 * @param test true if we should test for doc order
 * @param support The XPath runtime context.
 * @return insertIndex.
 * @throws RuntimeException thrown if this NodeSetDTM is not of 
 * a mutable type.
 */
public int addNodeInDocOrder(int node, boolean test, XPathContext support)
{

  if (!m_mutable)
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");

  int insertIndex = -1;

  if (test)
  {

    // This needs to do a binary search, but a binary search 
    // is somewhat tough because the sequence test involves 
    // two nodes.
    int size = size(), i;

    for (i = size - 1; i >= 0; i--)
    {
      int child = elementAt(i);

      if (child == node)
      {
        i = -2;  // Duplicate, suppress insert

        break;
      }

      DTM dtm = support.getDTM(node);
      if (!dtm.isNodeAfter(node, child))
      {
        break;
      }
    }

    if (i != -2)
    {
      insertIndex = i + 1;

      insertElementAt(node, insertIndex);
    }
  }
  else
  {
    insertIndex = this.size();

    boolean foundit = false;

    for (int i = 0; i < insertIndex; i++)
    {
      if (i == node)
      {
        foundit = true;

        break;
      }
    }

    if (!foundit)
      addElement(node);
  }

  // checkDups();
  return insertIndex;
}