/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2001-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, International
* Business Machines, Inc., http://www.apache.org. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package com.sun.org.apache.xerces.internal.xinclude;
import java.util.Enumeration;
import java.util.StringTokenizer;
import java.util.Stack;
import com.sun.org.apache.xerces.internal.impl.Constants;
import com.sun.org.apache.xerces.internal.impl.XMLErrorReporter;
import com.sun.org.apache.xerces.internal.impl.dtd.DTDGrammar;
import com.sun.org.apache.xerces.internal.util.ParserConfigurationSettings;
import com.sun.org.apache.xerces.internal.xni.Augmentations;
import com.sun.org.apache.xerces.internal.xni.NamespaceContext;
import com.sun.org.apache.xerces.internal.xni.QName;
import com.sun.org.apache.xerces.internal.xni.XMLAttributes;
import com.sun.org.apache.xerces.internal.xni.XMLDocumentHandler;
import com.sun.org.apache.xerces.internal.xni.XMLLocator;
import com.sun.org.apache.xerces.internal.xni.XMLResourceIdentifier;
import com.sun.org.apache.xerces.internal.xni.XMLString;
import com.sun.org.apache.xerces.internal.xni.XNIException;
import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarDescription;
import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarPool;
import com.sun.org.apache.xerces.internal.xni.parser.XMLComponentManager;
import com.sun.org.apache.xerces.internal.xni.parser.XMLConfigurationException;
import com.sun.org.apache.xerces.internal.xni.parser.XMLDocumentSource;
import com.sun.org.apache.xerces.internal.xni.parser.XMLEntityResolver;
import com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator;
/**
* @author Arun Yadav, Sun Microsystem
*/
public class XPointerElementHandler implements XPointerSchema {
// recognized features and properties
/** Property identifier: error handler. */
protected static final String ERROR_REPORTER =
Constants.XERCES_PROPERTY_PREFIX + Constants.ERROR_REPORTER_PROPERTY;
/** Property identifier: grammar pool . */
protected static final String GRAMMAR_POOL =
Constants.XERCES_PROPERTY_PREFIX + Constants.XMLGRAMMAR_POOL_PROPERTY;
/** Property identifier: grammar pool . */
protected static final String ENTITY_RESOLVER =
Constants.XERCES_PROPERTY_PREFIX + Constants.ENTITY_RESOLVER_PROPERTY;
protected static final String XPOINTER_SCHEMA =
Constants.XERCES_PROPERTY_PREFIX + Constants.XPOINTER_SCHEMA_PROPERTY;
/** Recognized features. */
private static final String[] RECOGNIZED_FEATURES = {
};
/** Feature defaults. */
private static final Boolean[] FEATURE_DEFAULTS = {
};
/** Recognized properties. */
private static final String[] RECOGNIZED_PROPERTIES =
{ ERROR_REPORTER, GRAMMAR_POOL, ENTITY_RESOLVER, XPOINTER_SCHEMA };
/** Property defaults. */
private static final Object[] PROPERTY_DEFAULTS = { null, null, null,null };
// Data
protected XMLDocumentHandler fDocumentHandler;
protected XMLDocumentSource fDocumentSource;
protected XIncludeHandler fParentXIncludeHandler;
protected XMLLocator fDocLocation;
protected XIncludeNamespaceSupport fNamespaceContext;
protected XMLErrorReporter fErrorReporter;
protected XMLGrammarPool fGrammarPool;
protected XMLGrammarDescription fGrammarDesc;
protected DTDGrammar fDTDGrammar;
protected XMLEntityResolver fEntityResolver;
protected ParserConfigurationSettings fSettings;
//protected String fPointerSchema;
protected StringBuffer fPointer;
private int elemCount = 0;
// The current element depth.
// This is used to access the appropriate level of the following stacks.
private int fDepth;
// The depth of the first element to actually be part of the result infoset.
// This will normally be 1, but it could be larger when the top-level item
// is an include, and processing goes to the fallback.
private int fRootDepth;
// this value must be at least 1
private static final int INITIAL_SIZE = 8;
// Used to ensure that fallbacks are always children of include elements,
// and that include elements are never children of other include elements.
// An index contains true if the ancestor of the current element which resides
// at that depth was an include element.
private boolean[] fSawInclude = new boolean[INITIAL_SIZE];
// Ensures that only one fallback element can be at a single depth.
// An index contains true if we have seen any fallback elements at that depth,
// and it is only reset to false when the end tag of the parent is encountered.
private boolean[] fSawFallback = new boolean[INITIAL_SIZE];
// The state of the processor at each given depth.
private int[] fState = new int[INITIAL_SIZE];
QName foundElement = null;
boolean skip = false;
// Constructors
public XPointerElementHandler() {
fDepth = 0;
fRootDepth = 0;
fSawFallback[fDepth] = false;
fSawInclude[fDepth] = false;
fSchemaName="element";
}
// START OF IMPLEMENTATION OF XMLComponent methods //////
public void reset(){
elemCount =0;
fPointerToken = null;
fCurrentTokenint=0;
fCurrentTokenString=null;
fCurrentTokenType=0 ;
fElementCount =0;
fCurrentToken =0;
includeElement = false;
foundElement = null;
skip = false;
fSubResourceIdentified=false;
}
public void reset(XMLComponentManager componentManager)
throws XNIException {
fNamespaceContext = null;
elemCount =0;
fDepth = 0;
fRootDepth = 0;
fPointerToken = null;
fCurrentTokenint=0;
fCurrentTokenString=null;
fCurrentTokenType=0 ;
foundElement = null;
includeElement = false;
skip = false;
fSubResourceIdentified=false;
try {
setErrorReporter(
(XMLErrorReporter)componentManager.getProperty(ERROR_REPORTER));
}
catch (XMLConfigurationException e) {
fErrorReporter = null;
}
try {
fGrammarPool =
(XMLGrammarPool)componentManager.getProperty(GRAMMAR_POOL);
}
catch (XMLConfigurationException e) {
fGrammarPool = null;
}
try {
fEntityResolver =
(XMLEntityResolver)componentManager.getProperty(
ENTITY_RESOLVER);
}
catch (XMLConfigurationException e) {
fEntityResolver = null;
}
fSettings = new ParserConfigurationSettings();
Enumeration xercesFeatures = Constants.getXercesFeatures();
while (xercesFeatures.hasMoreElements()) {
String featureId = (String)xercesFeatures.nextElement();
fSettings.addRecognizedFeatures(new String[] { featureId });
try {
fSettings.setFeature(
featureId,
componentManager.getFeature(featureId));
}
catch (XMLConfigurationException e) {
// componentManager doesn't support this feature,
// so we won't worry about it
}
}
/* try{
dtdValidator = (XMLDTDValidator)componentManager.getProperty( Constants.XERCES_PROPERTY_PREFIX + Constants.DTD_VALIDATOR_PROPERTY);
}Catch(Exception ex){
ex.printStackTrace();
}*/
} // reset(XMLComponentManager)
/**
* Returns a list of feature identifiers that are recognized by
* this component. This method may return null if no features
* are recognized by this component.
*/
public String[] getRecognizedFeatures() {
return RECOGNIZED_FEATURES;
} // getRecognizedFeatures():String[]
/**
* Sets the state of a feature. This method is called by the component
* manager any time after reset when a feature changes state.
* <p>
* <strong>Note:</strong> Components should silently ignore features
* that do not affect the operation of the component.
*
* @param featureId The feature identifier.
* @param state The state of the feature.
*
* @throws SAXNotRecognizedException The component should not throw
* this exception.
* @throws SAXNotSupportedException The component should not throw
* this exception.
*/
public void setFeature(String featureId, boolean state)
throws XMLConfigurationException {
if (fSettings != null) {
fSettings.setFeature(featureId, state);
}
} // setFeature(String,boolean)
/**
* Returns a list of property identifiers that are recognized by
* this component. This method may return null if no properties
* are recognized by this component.
*/
public String[] getRecognizedProperties() {
return RECOGNIZED_PROPERTIES;
} // getRecognizedProperties():String[]
/**
* Sets the value of a property. This method is called by the component
* manager any time after reset when a property changes value.
* <p>
* <strong>Note:</strong> Components should silently ignore properties
* that do not affect the operation of the component.
*
* @param propertyId The property identifier.
* @param value The value of the property.
*
* @throws SAXNotRecognizedException The component should not throw
* this exception.
* @throws SAXNotSupportedException The component should not throw
* this exception.
*/
public void setProperty(String propertyId, Object value)
throws XMLConfigurationException {
if (propertyId.equals(ERROR_REPORTER)) {
setErrorReporter((XMLErrorReporter)value);
}
if (propertyId.equals(GRAMMAR_POOL)) {
fGrammarPool = (XMLGrammarPool)value;
}
if (propertyId.equals(ENTITY_RESOLVER)) {
fEntityResolver = (XMLEntityResolver)value;
}
} // setProperty(String,Object)
/**
* Returns the default state for a feature, or null if this
* component does not want to report a default value for this
* feature.
*
* @param featureId The feature identifier.
*
* @since Xerces 2.2.0
*/
public Boolean getFeatureDefault(String featureId) {
for (int i = 0; i < RECOGNIZED_FEATURES.length; i++) {
if (RECOGNIZED_FEATURES[i].equals(featureId)) {
return FEATURE_DEFAULTS[i];
}
}
return null;
} // getFeatureDefault(String):Boolean
/**
* Returns the default state for a property, or null if this
* component does not want to report a default value for this
* property.
*
* @param propertyId The property identifier.
*
* @since Xerces 2.2.0
*/
public Object getPropertyDefault(String propertyId) {
for (int i = 0; i < RECOGNIZED_PROPERTIES.length; i++) {
if (RECOGNIZED_PROPERTIES[i].equals(propertyId)) {
return PROPERTY_DEFAULTS[i];
}
}
return null;
} // getPropertyDefault(String):Object
private void setErrorReporter(XMLErrorReporter reporter) {
fErrorReporter = reporter;
if (fErrorReporter != null) {
fErrorReporter.putMessageFormatter(
XIncludeMessageFormatter.XINCLUDE_DOMAIN,
new XIncludeMessageFormatter());
}
}
///////// END OF IMPLEMENTATION OF XMLComponents methods. //////////
//////// START OF IMPLEMENTATION OF XMLDOCUMENTSOURCE INTERFACE /////////
public void setDocumentHandler(XMLDocumentHandler handler) {
fDocumentHandler = handler;
}
public XMLDocumentHandler getDocumentHandler() {
return fDocumentHandler;
}
/////// END OF IMPLENTATION OF XMLDOCUMENTSOURCE INTERFACE ///////////
/////////////// Implementation of XPointerSchema Methods //////////////////////
String fSchemaName;
String fSchemaPointer;
boolean fSubResourceIdentified;
/**
* set the Schema Name eg element , xpointer
*/
public void setXPointerSchemaName(String schemaName){
fSchemaName = schemaName;
}
/**
* Return Schema Name eg element , xpointer
*
*/
public String getXpointerSchemaName(){
return fSchemaName;
}
/**
* Parent Contenhandler for the this contenthandler.
* // not sure about the parameter type. It can be Contenthandler instead of Object type.
*/
public void setParent(Object parent){
fParentXIncludeHandler = (XIncludeHandler)parent;
}
/**
* return the Parent Contenthandler
*/
public Object getParent(){
return fParentXIncludeHandler;
}
/**
* Content of the XPointer Schema. Xpath to be resolved.
*/
public void setXPointerSchemaPointer(String content){
fSchemaPointer = content;
}
/**
* Return the XPointer Schema.
*/
public String getXPointerSchemaPointer(){
return fSchemaPointer;
}
public boolean isSubResourceIndentified(){
return fSubResourceIdentified;
}
///////////End Implementation of XPointerSchema Methods //////////////////////
//////////// Tokens Playground ///////////////////
Stack fPointerToken = new Stack();
int fCurrentTokenint=0;
String fCurrentTokenString=null;
int fCurrentTokenType=0 ;// 0 Notype; 1 for integer; 2 for string.
public void getTokens(){
fSchemaPointer = fSchemaPointer.substring(fSchemaPointer.indexOf("(")+1, fSchemaPointer.length());
StringTokenizer st = new StringTokenizer(fSchemaPointer, "/");
String tempToken;
Integer integerToken =null;
Stack tempPointerToken = new Stack();
if(fPointerToken == null){
fPointerToken = new Stack();
}
while(st.hasMoreTokens()){
tempToken=st.nextToken();
try {
integerToken = Integer.valueOf(tempToken);
tempPointerToken.push(integerToken);
}catch(NumberFormatException e){
tempPointerToken.push(tempToken);
}
}
while(!tempPointerToken.empty()){
fPointerToken.push(tempPointerToken.pop());
}
}//getTokens
public boolean hasMoreToken(){
if(fPointerToken.isEmpty())
return false;
else
return true;
}
public boolean getNextToken(){
Object currentToken;
if (!fPointerToken.isEmpty()){
currentToken = fPointerToken.pop();
if(currentToken instanceof Integer){
fCurrentTokenint = ((Integer)currentToken).intValue();
fCurrentTokenType = 1;
}
else{
fCurrentTokenString = ((String)currentToken).toString();
fCurrentTokenType = 2;
}
return true;
}
else {
return false;
}
}
private boolean isIdAttribute(XMLAttributes attributes,Augmentations augs, int index) {
Object o = augs.getItem(Constants.ID_ATTRIBUTE);
if( o instanceof Boolean )
return ((Boolean)o).booleanValue();
return "ID".equals(attributes.getType(index));
}
public boolean checkStringToken(QName element, XMLAttributes attributes){
QName cacheQName = null;
String id =null;
String rawname =null;
QName attrName = new QName();
String attrType = null;
String attrValue = null;
int attrCount = attributes.getLength();
for (int i = 0; i < attrCount; i++) {
Augmentations aaugs = attributes.getAugmentations(i);
attributes.getName(i,attrName);
attrType = attributes.getType(i);
attrValue = attributes.getValue(i);
if(attrType != null && attrValue!= null && isIdAttribute(attributes,aaugs,i) && attrValue.equals(fCurrentTokenString)){
if(hasMoreToken()){
fCurrentTokenType = 0;
fCurrentTokenString = null;
return true;
}
else{
foundElement = element;
includeElement = true;
fCurrentTokenType = 0;
fCurrentTokenString = null;
fSubResourceIdentified = true;
return true;
}
}
}
return false;
}
public boolean checkIntegerToken(QName element){
if(!skip){
fElementCount++;
if(fCurrentTokenint == fElementCount){
if(hasMoreToken()){
fElementCount=0;
fCurrentTokenType = 0;
return true;
}
else{
foundElement = element;
includeElement = true;
fCurrentTokenType = 0;
fElementCount=0;
fSubResourceIdentified =true;
return true;
}
}else{
addQName(element);
skip = true;
return false;
}
}
return false;
}
public void addQName(QName element){
QName cacheQName = new QName(element);
ftempCurrentElement.push(cacheQName);
}
/////////// END TOKEN PLAYGROUND ///////////////
///// START OF IMPLEMTATION OF XMLDocumentHandler methods //////////
public void startDocument(XMLLocator locator, String encoding,
NamespaceContext namespaceContext, Augmentations augs)
throws XNIException {
getTokens();
}
public void doctypeDecl(String rootElement, String publicId, String systemId,
Augmentations augs)throws XNIException {
}
public void xmlDecl(String version, String encoding, String standalone,
Augmentations augs) throws XNIException {
}
public void comment(XMLString text, Augmentations augs)
throws XNIException {
if (fDocumentHandler != null && includeElement) {
fDocumentHandler.comment(text, augs);
}
}
public void processingInstruction(String target, XMLString data,
Augmentations augs) throws XNIException {
if (fDocumentHandler != null && includeElement) {
fDocumentHandler.processingInstruction(target, data, augs);
}
}
Stack ftempCurrentElement = new Stack();
int fElementCount =0;
int fCurrentToken ;
boolean includeElement;
public void startElement(QName element, XMLAttributes attributes,
Augmentations augs)throws XNIException {
boolean requiredToken=false;
if(fCurrentTokenType == 0)
getNextToken();
if(fCurrentTokenType ==1)
requiredToken = checkIntegerToken(element);
else if (fCurrentTokenType ==2)
requiredToken = checkStringToken(element, attributes);
if(requiredToken && hasMoreToken())
getNextToken();
if(fDocumentHandler != null && includeElement){
elemCount++;
fDocumentHandler.startElement(element, attributes, augs);
}
}
public void endElement(QName element, Augmentations augs)
throws XNIException {
if(includeElement && foundElement != null ){
if(elemCount >0 )elemCount --;
fDocumentHandler.endElement(element, augs);
if(elemCount == 0)includeElement = false;
}else if(!ftempCurrentElement.empty()){
QName name = (QName)ftempCurrentElement.peek();
if(name.equals(element)){
ftempCurrentElement.pop();
skip = false;
}
}
}
public void emptyElement(QName element, XMLAttributes attributes,
Augmentations augs)throws XNIException {
if(fDocumentHandler != null && includeElement){
fDocumentHandler.emptyElement(element, attributes, augs);
}
}
public void startGeneralEntity(String name, XMLResourceIdentifier resId,
String encoding,
Augmentations augs)
throws XNIException {
if (fDocumentHandler != null && includeElement) {
fDocumentHandler.startGeneralEntity(name, resId, encoding, augs);
}
}
public void textDecl(String version, String encoding, Augmentations augs)
throws XNIException {
if (fDocumentHandler != null && includeElement) {
fDocumentHandler.textDecl(version, encoding, augs);
}
}
public void endGeneralEntity(String name, Augmentations augs)
throws XNIException {
if (fDocumentHandler != null) {
fDocumentHandler.endGeneralEntity(name, augs);
}
}
public void characters(XMLString text, Augmentations augs)
throws XNIException {
if (fDocumentHandler != null && includeElement) {
fDocumentHandler.characters(text, augs);
}
}
public void ignorableWhitespace(XMLString text, Augmentations augs)
throws XNIException {
if (fDocumentHandler != null && includeElement) {
fDocumentHandler.ignorableWhitespace(text, augs);
}
}
public void startCDATA(Augmentations augs) throws XNIException {
if (fDocumentHandler != null && includeElement) {
fDocumentHandler.startCDATA(augs);
}
}
public void endCDATA(Augmentations augs) throws XNIException {
if (fDocumentHandler != null && includeElement) {
fDocumentHandler.endCDATA(augs);
}
}
public void endDocument(Augmentations augs) throws XNIException {
}
public void setDocumentSource(XMLDocumentSource source) {
fDocumentSource = source;
}
public XMLDocumentSource getDocumentSource() {
return fDocumentSource;
}
protected void reportFatalError(String key) {
this.reportFatalError(key, null);
}
protected void reportFatalError(String key, Object[] args) {
if (fErrorReporter != null) {
fErrorReporter.reportError(
fDocLocation,
XIncludeMessageFormatter.XINCLUDE_DOMAIN,
key,
args,
XMLErrorReporter.SEVERITY_FATAL_ERROR);
}
// we won't worry about when error reporter is null, since there should always be
// at least the default error reporter
}
// used to know whether to pass declarations to the document handler
protected boolean isRootDocument() {
return this.fParentXIncludeHandler == null;
}
} // class XPointerElementhandler
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