saximpl.java

java1.6众多例子参考

                NodeValueIterator clone = (NodeValueIterator)super.clone();
                clone._isRestartable = false;
                clone._source = _source.cloneIterator();
                clone._value = _value;
                clone._op = _op;
                return clone.reset();
            }
            catch (CloneNotSupportedException e) {
                BasisLibrary.runTimeError(BasisLibrary.ITERATOR_CLONE_ERR,
                                          e.toString());
                return null;
            }
        }
  
        public void setRestartable(boolean isRestartable)
        {
	    _isRestartable = isRestartable;
	    _source.setRestartable(isRestartable);
	}

	public DTMAxisIterator reset()
        {
	    _source.reset();
	    return resetPosition();
	}

	public int next()
        {
            int node;
            while ((node = _source.next()) != END) {
                String val = getStringValueX(node);
                if (_value.equals(val) == _op) {
                    if (_returnType == RETURN_CURRENT) {
                        return returnNode(node);
                    }
                    else {
                        return returnNode(getParent(node));
                    }
                }
            }
            return END;
        }

	public DTMAxisIterator setStartNode(int node)
        {
            if (_isRestartable) {
                _source.setStartNode(_startNode = node);
                return resetPosition();
            }
            return this;
        }

	public void setMark()
        {
	    _source.setMark();
	}

	public void gotoMark()
        {
	    _source.gotoMark();
	}
    } // end NodeValueIterator

    public DTMAxisIterator getNodeValueIterator(DTMAxisIterator iterator, int type,
					     String value, boolean op)
    {
        return(DTMAxisIterator)(new NodeValueIterator(iterator, type, value, op));
    }

    /**
     * Encapsulates an iterator in an OrderedIterator to ensure node order
     */
    public DTMAxisIterator orderNodes(DTMAxisIterator source, int node)
    {
        return new DupFilterIterator(source);
    }

    /**
     * Returns singleton iterator containg the document root
     * Works for them main document (mark == 0).  It cannot be made
     * to point to any other node through setStartNode().
     */
    public DTMAxisIterator getIterator()
    {
        return new SingletonIterator(getDocument(), true);
    }

     /**
     * Get mapping from DOM namespace types to external namespace types
     */
    public int getNSType(int node)
    {
    	String s = getNamespaceURI(node);
    	if (s == null) {
    	    return 0;
    	}
    	int eType = getIdForNamespace(s);
    	return ((Integer)_nsIndex.get(new Integer(eType))).intValue();        
    }
    
    

    /**
     * Returns the namespace type of a specific node
     */
    public int getNamespaceType(final int node)
    {
    	return super.getNamespaceType(node);
    }

    /**
     * Sets up a translet-to-dom type mapping table
     */
    private int[] setupMapping(String[] names, String[] uris, int[] types, int nNames) {
        // Padding with number of names, because they
        // may need to be added, i.e for RTFs. See copy03  
        final int[] result = new int[m_expandedNameTable.getSize()];
        for (int i = 0; i < nNames; i++)      {
            //int type = getGeneralizedType(namesArray[i]);
            int type = m_expandedNameTable.getExpandedTypeID(uris[i], names[i], types[i], false);
            result[type] = type;
        }
        return result;
    }

    /**
     * Returns the internal type associated with an expanded QName
     */
    public int getGeneralizedType(final String name) {
        return getGeneralizedType(name, true);
    }

    /**
     * Returns the internal type associated with an expanded QName
     */
    public int getGeneralizedType(final String name, boolean searchOnly) {
        String lName, ns = null;
        int index = -1;
        int code;

        // Is there a prefix?
        if ((index = name.lastIndexOf(":"))> -1) {
            ns = name.substring(0, index);
        }

        // Local part of name is after colon.  lastIndexOf returns -1 if
        // there is no colon, so lNameStartIdx will be zero in that case.
        int lNameStartIdx = index+1;

        // Distinguish attribute and element names.  Attribute has @ before
        // local part of name.
        if (name.charAt(lNameStartIdx) == '@') {
            code = DTM.ATTRIBUTE_NODE;
            lNameStartIdx++;
        }
        else {
            code = DTM.ELEMENT_NODE;
        }

        // Extract local name
        lName = (lNameStartIdx == 0) ? name : name.substring(lNameStartIdx);

        return m_expandedNameTable.getExpandedTypeID(ns, lName, code, searchOnly);
    }

    /**
     * Get mapping from DOM element/attribute types to external types
     */
    public short[] getMapping(String[] names, String[] uris, int[] types)
    {
        // Delegate the work to getMapping2 if the document is not fully built.
        // Some of the processing has to be different in this case.
        if (_namesSize < 0) {
            return getMapping2(names, uris, types);
        }

        int i;
        final int namesLength = names.length;
        final int exLength = m_expandedNameTable.getSize();
      
        final short[] result = new short[exLength];

        // primitive types map to themselves
        for (i = 0; i < DTM.NTYPES; i++) {
            result[i] = (short)i;
        }
        
        for (i = NTYPES; i < exLength; i++) { 
      	    result[i] = m_expandedNameTable.getType(i);
      	}
      	
        // actual mapping of caller requested names
        for (i = 0; i < namesLength; i++) {
            int genType = m_expandedNameTable.getExpandedTypeID(uris[i],
                                                                names[i],
                                                                types[i],
                                                                true);
            if (genType >= 0 && genType < exLength) {
                result[genType] = (short)(i + DTM.NTYPES);
            }
        }

        return result;
    }

    /**
     * Get mapping from external element/attribute types to DOM types
     */
    public int[] getReverseMapping(String[] names, String[] uris, int[] types)
    {
        int i;
        final int[] result = new int[names.length + DTM.NTYPES];
        
        // primitive types map to themselves
        for (i = 0; i < DTM.NTYPES; i++) {
            result[i] = i;
        }
        
        // caller's types map into appropriate dom types
        for (i = 0; i < names.length; i++) {
            int type = m_expandedNameTable.getExpandedTypeID(uris[i], names[i], types[i], true);
            result[i+DTM.NTYPES] = type;
        }
        return(result);
    }
    
    /**
     * Get mapping from DOM element/attribute types to external types.
     * This method is used when the document is not fully built.
     */
    private short[] getMapping2(String[] names, String[] uris, int[] types)
    {
        int i;
        final int namesLength = names.length;
        final int exLength = m_expandedNameTable.getSize();
        int[] generalizedTypes = null;
        if (namesLength > 0) {
            generalizedTypes = new int[namesLength];
        }

        int resultLength = exLength;

        for (i = 0; i < namesLength; i++) {
            // When the document is not fully built, the searchOnly
            // flag should be set to false. That means we should add
            // the type if it is not already in the expanded name table.
            //generalizedTypes[i] = getGeneralizedType(names[i], false);
            generalizedTypes[i] =
                m_expandedNameTable.getExpandedTypeID(uris[i],
                                                      names[i],
                                                      types[i],
                                                      false);
            if (_namesSize < 0 && generalizedTypes[i] >= resultLength) {
                resultLength = generalizedTypes[i] + 1;
            }
        }

        final short[] result = new short[resultLength];

        // primitive types map to themselves
        for (i = 0; i < DTM.NTYPES; i++) {
            result[i] = (short)i;
        }

        for (i = NTYPES; i < exLength; i++) {
            result[i] = m_expandedNameTable.getType(i);
        }

        // actual mapping of caller requested names
        for (i = 0; i < namesLength; i++) {
            int genType = generalizedTypes[i];
            if (genType >= 0 && genType < resultLength) {
                result[genType] = (short)(i + DTM.NTYPES);
            }
        }

        return(result);
    }
    /**
     * Get mapping from DOM namespace types to external namespace types
     */
    public short[] getNamespaceMapping(String[] namespaces)
    {
        int i;
        final int nsLength = namespaces.length;
        final int mappingLength = _uriCount;

        final short[] result = new short[mappingLength];

        // Initialize all entries to -1
        for (i=0; i<mappingLength; i++) {
            result[i] = (short)(-1);
        }

        for (i=0; i<nsLength; i++) {
            int eType = getIdForNamespace(namespaces[i]); 
            Integer type = (Integer)_nsIndex.get(new Integer(eType));
            if (type != null) {
                result[type.intValue()] = (short)i;
            }
        }

        return(result);
    }

    /**
     * Get mapping from external namespace types to DOM namespace types
     */
    public short[] getReverseNamespaceMapping(String[] namespaces)
    {
        int i;
        final int length = namespaces.length;
        final short[] result = new short[length];

        for (i = 0; i < length; i++) {
            int eType = getIdForNamespace(namespaces[i]);
            Integer type = (Integer)_nsIndex.get(new Integer(eType));
            result[i] = (type == null) ? -1 : type.shortValue();
        }

        return result;
    }

    /**
     * Construct a SAXImpl object using the default block size.
     */
    public SAXImpl(XSLTCDTMManager mgr, Source source,
                   int dtmIdentity, DTMWSFilter whiteSpaceFilter,
                   XMLStringFactory xstringfactory,
                   boolean doIndexing, boolean buildIdIndex)
    {
        this(mgr, source, dtmIdentity, whiteSpaceFilter, xstringfactory,
            doIndexing, DEFAULT_BLOCKSIZE, buildIdIndex, false);
    }
    
    /**
     * Construct a SAXImpl object using the given block size.
     */
    public SAXImpl(XSLTCDTMManager mgr, Source source,
                   int dtmIdentity, DTMWSFilter whiteSpaceFilter,
                   XMLStringFactory xstringfactory,
                   boolean doIndexing, int blocksize, 
                   boolean buildIdIndex,
                   boolean newNameTable)
    {
        super(mgr, source, dtmIdentity, whiteSpaceFilter, xstringfactory,
            doIndexing, blocksize, false, buildIdIndex, newNameTable);
      
        _dtmManager = mgr;      
        _size = blocksize;
      
        // Use a smaller size for the space stack if the blocksize is small
        _xmlSpaceStack = new int[blocksize <= 64 ? 4 : 64];
                                  
        /* From DOMBuilder */ 
        _xmlSpaceStack[0] = DTMDefaultBase.ROOTNODE;
      
        // If the input source is DOMSource, set the _document field and
        // create the node2Ids table.
        if (source instanceof DOMSource) {
            _hasDOMSource = true;
            DOMSource domsrc = (DOMSource)source;
            Node node = domsrc.getNode();
            if (node instanceof Document) {
                _document = (Document)node;
            }
            else {
                _document = node.getOwnerDocument();
            }
            _node2Ids = new Hashtable();
        }                          
    }
        
    /**
    * Migrate a DTM built with an old DTMManager to a new DTMManager.
    * After the migration, the new DTMManager will treat the DTM as
    * one that is built by itself.
    * This is used to support DTM sharing between multiple transformations.
    * @param manager the DTMManager
    */
    public void migrateTo(DTMManager manager) {