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	/*
	* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
	*/
	/*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership.
	* The ASF licenses this file to You under the Apache License, Version 2.0
	* (the "License"); you may not use this file except in compliance with
	* the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.sun.org.apache.xalan.internal.xsltc.dom;

	import com.sun.org.apache.xalan.internal.xsltc.DOM;
	import com.sun.org.apache.xalan.internal.xsltc.DOMEnhancedForDTM;
	import com.sun.org.apache.xalan.internal.xsltc.StripFilter;
	import com.sun.org.apache.xalan.internal.xsltc.TransletException;
	import com.sun.org.apache.xml.internal.dtm.DTM;
	import com.sun.org.apache.xml.internal.dtm.DTMAxisIterator;
	import com.sun.org.apache.xml.internal.serializer.SerializationHandler;
	import java.util.Map;
	import org.w3c.dom.Node;
	import org.w3c.dom.NodeList;

	/**
	* @author Jacek Ambroziak
	* @author Morten Jorgensen
	*/
	public final class DOMAdapter implements DOM {

	// Mutually exclusive casting of DOM interface to known implementations
	private DOMEnhancedForDTM _enhancedDOM;

	private DOM _dom;

	private String[] _namesArray;
	private String[] _urisArray;
	private int[] _typesArray;
	private String[] _namespaceArray;

	// Cached mappings
	private short[] _mapping = null;
	private int[] _reverse = null;
	private short[] _NSmapping = null;
	private short[] _NSreverse = null;

	private int _multiDOMMask;

	public DOMAdapter(DOM dom,
	String[] namesArray,
	String[] urisArray,
	int[] typesArray,
	String[] namespaceArray) {
	if (dom instanceof DOMEnhancedForDTM){
	_enhancedDOM = (DOMEnhancedForDTM) dom;
	}

	_dom = dom;
	_namesArray = namesArray;
	_urisArray = urisArray;
	_typesArray = typesArray;
	_namespaceArray = namespaceArray;
	}

	public void setupMapping(String[] names, String[] urisArray,
	int[] typesArray, String[] namespaces) {
	_namesArray = names;
	_urisArray = urisArray;
	_typesArray = typesArray;
	_namespaceArray = namespaces;
	}

	public String[] getNamesArray() {
	return _namesArray;
	}

	public String[] getUrisArray() {
	return _urisArray;
	}

	public int[] getTypesArray() {
	return _typesArray;
	}

	public String[] getNamespaceArray() {
	return _namespaceArray;
	}

	public DOM getDOMImpl() {
	return _dom;
	}

	private short[] getMapping() {
	if (_mapping == null) {
	if (_enhancedDOM != null) {
	_mapping = _enhancedDOM.getMapping(_namesArray, _urisArray,
	_typesArray);
	}
	}
	return _mapping;
	}

	private int[] getReverse() {
	if (_reverse == null) {
	if (_enhancedDOM != null) {
	_reverse = _enhancedDOM.getReverseMapping(_namesArray,
	_urisArray,
	_typesArray);
	}
	}
	return _reverse;
	}

	private short[] getNSMapping() {
	if (_NSmapping == null) {
	if (_enhancedDOM != null) {
	_NSmapping = _enhancedDOM.getNamespaceMapping(_namespaceArray);
	}
	}
	return _NSmapping;
	}

	private short[] getNSReverse() {
	if (_NSreverse == null) {
	if (_enhancedDOM != null) {
	_NSreverse = _enhancedDOM
	.getReverseNamespaceMapping(_namespaceArray);
	}
	}
	return _NSreverse;
	}

	/**
	* Returns singleton iterator containg the document root
	*/
	public DTMAxisIterator getIterator() {
	return _dom.getIterator();
	}

	public String getStringValue() {
	return _dom.getStringValue();
	}

	public DTMAxisIterator getChildren(final int node) {
	if (_enhancedDOM != null) {
	return _enhancedDOM.getChildren(node);
	}
	else {
	DTMAxisIterator iterator = _dom.getChildren(node);
	return iterator.setStartNode(node);
	}
	}

	public void setFilter(StripFilter filter) {}

	public DTMAxisIterator getTypedChildren(final int type) {
	final int[] reverse = getReverse();

	if (_enhancedDOM != null) {
	return _enhancedDOM.getTypedChildren(reverse[type]);
	}
	else {
	return _dom.getTypedChildren(type);
	}
	}

	public DTMAxisIterator getNamespaceAxisIterator(final int axis,
	final int ns) {
	return _dom.getNamespaceAxisIterator(axis, getNSReverse()[ns]);
	}

	public DTMAxisIterator getAxisIterator(final int axis) {
	if (_enhancedDOM != null) {
	return _enhancedDOM.getAxisIterator(axis);
	}
	else {
	return _dom.getAxisIterator(axis);
	}
	}

	public DTMAxisIterator getTypedAxisIterator(final int axis,
	final int type) {
	final int[] reverse = getReverse();
	if (_enhancedDOM != null) {
	return _enhancedDOM.getTypedAxisIterator(axis, reverse[type]);
	} else {
	return _dom.getTypedAxisIterator(axis, type);
	}
	}

	public int getMultiDOMMask() {
	return _multiDOMMask;
	}

	public void setMultiDOMMask(int mask) {
	_multiDOMMask = mask;
	}

	public DTMAxisIterator getNthDescendant(int type, int n,
	boolean includeself) {
	return _dom.getNthDescendant(getReverse()[type], n, includeself);
	}

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

	public DTMAxisIterator orderNodes(DTMAxisIterator source, int node) {
	return _dom.orderNodes(source, node);
	}

	public int getExpandedTypeID(final int node) {
	final short[] mapping = getMapping();
	final int type;
	if (_enhancedDOM != null) {
	type = mapping[_enhancedDOM.getExpandedTypeID2(node)];
	}
	else {
	if(null != mapping)
	{
	type = mapping[_dom.getExpandedTypeID(node)];
	}
	else
	{
	type = _dom.getExpandedTypeID(node);
	}
	}
	return type;
	}

	public int getNamespaceType(final int node) {
	return getNSMapping()[_dom.getNSType(node)];
	}

	public int getNSType(int node) {
	return _dom.getNSType(node);
	}

	public int getParent(final int node) {
	return _dom.getParent(node);
	}

	public int getAttributeNode(final int type, final int element) {
	return _dom.getAttributeNode(getReverse()[type], element);
	}

	public String getNodeName(final int node) {
	if (node == DTM.NULL) {
	return "";
	}
	return _dom.getNodeName(node);
	}

	public String getNodeNameX(final int node)
	{
	if (node == DTM.NULL) {
	return "";
	}
	return _dom.getNodeNameX(node);
	}

	public String getNamespaceName(final int node)
	{
	if (node == DTM.NULL) {
	return "";
	}
	return _dom.getNamespaceName(node);
	}

	public String getStringValueX(final int node)
	{
	if (_enhancedDOM != null) {
	return _enhancedDOM.getStringValueX(node);
	}
	else {
	if (node == DTM.NULL) {
	return "";
	}
	return _dom.getStringValueX(node);
	}
	}

	public void copy(final int node, SerializationHandler handler)
	throws TransletException
	{
	_dom.copy(node, handler);
	}

	public void copy(DTMAxisIterator nodes,SerializationHandler handler)
	throws TransletException
	{
	_dom.copy(nodes, handler);
	}

	public String shallowCopy(final int node, SerializationHandler handler)
	throws TransletException
	{
	if (_enhancedDOM != null) {
	return _enhancedDOM.shallowCopy(node, handler);
	}
	else {
	return _dom.shallowCopy(node, handler);
	}
	}

	public boolean lessThan(final int node1, final int node2)
	{
	return _dom.lessThan(node1, node2);
	}

	public void characters(final int textNode, SerializationHandler handler)
	throws TransletException
	{
	if (_enhancedDOM != null) {
	_enhancedDOM.characters(textNode, handler);
	}
	else {
	_dom.characters(textNode, handler);
	}
	}

	public Node makeNode(int index)
	{
	return _dom.makeNode(index);
	}

	public Node makeNode(DTMAxisIterator iter)
	{
	return _dom.makeNode(iter);
	}

	public NodeList makeNodeList(int index)
	{
	return _dom.makeNodeList(index);
	}

	public NodeList makeNodeList(DTMAxisIterator iter)
	{
	return _dom.makeNodeList(iter);
	}

	public String getLanguage(int node)
	{
	return _dom.getLanguage(node);
	}

	public int getSize()
	{
	return _dom.getSize();
	}

	public void setDocumentURI(String uri)
	{
	if (_enhancedDOM != null) {
	_enhancedDOM.setDocumentURI(uri);
	}
	}

	public String getDocumentURI()
	{
	if (_enhancedDOM != null) {
	return _enhancedDOM.getDocumentURI();
	}
	else {
	return "";
	}
	}

	public String getDocumentURI(int node)
	{
	return _dom.getDocumentURI(node);
	}

	public int getDocument()
	{
	return _dom.getDocument();
	}

	public boolean isElement(final int node)
	{
	return(_dom.isElement(node));
	}

	public boolean isAttribute(final int node)
	{
	return(_dom.isAttribute(node));
	}

	public int getNodeIdent(int nodeHandle)
	{
	return _dom.getNodeIdent(nodeHandle);
	}

	public int getNodeHandle(int nodeId)
	{
	return _dom.getNodeHandle(nodeId);
	}

	/**
	* Return a instance of a DOM class to be used as an RTF
	*/
	public DOM getResultTreeFrag(int initSize, int rtfType)
	{
	if (_enhancedDOM != null) {
	return _enhancedDOM.getResultTreeFrag(initSize, rtfType);
	}
	else {
	return _dom.getResultTreeFrag(initSize, rtfType);
	}
	}

	/**
	* Return a instance of a DOM class to be used as an RTF
	*/
	public DOM getResultTreeFrag(int initSize, int rtfType,
	boolean addToManager)
	{
	if (_enhancedDOM != null) {
	return _enhancedDOM.getResultTreeFrag(initSize, rtfType,
	addToManager);
	}
	else {
	return _dom.getResultTreeFrag(initSize, rtfType, addToManager);
	}
	}


	/**
	* Returns a SerializationHandler class wrapped in a SAX adapter.
	*/
	public SerializationHandler getOutputDomBuilder()
	{
	return _dom.getOutputDomBuilder();
	}

	public String lookupNamespace(int node, String prefix)
	throws TransletException
	{
	return _dom.lookupNamespace(node, prefix);
	}

	public String getUnparsedEntityURI(String entity) {
	return _dom.getUnparsedEntityURI(entity);
	}

	public Map<String, Integer> getElementsWithIDs() {
	return _dom.getElementsWithIDs();
	}

	public void release() {
	_dom.release();
	}
	}

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