/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2000-2002 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 org.apache.xerces.impl.xs;
import org.apache.xerces.xni.parser.XMLConfigurationException;
import org.apache.xerces.xni.parser.XMLErrorHandler;
import org.apache.xerces.xni.parser.XMLEntityResolver;
import org.apache.xerces.xni.parser.XMLInputSource;
import org.apache.xerces.xni.XNIException;
import org.apache.xerces.xni.grammars.XMLGrammarLoader;
import org.apache.xerces.xni.grammars.XMLGrammarDescription;
import org.apache.xerces.xni.grammars.XMLGrammarPool;
import org.apache.xerces.xni.grammars.Grammar;
import org.xml.sax.InputSource;
import org.apache.xerces.impl.XMLErrorReporter;
import org.apache.xerces.impl.xs.models.CMBuilder;
import org.apache.xerces.impl.xs.traversers.XSDHandler;
import org.apache.xerces.impl.Constants;
import org.apache.xerces.impl.XMLEntityManager;
import org.apache.xerces.util.SymbolTable;
import org.apache.xerces.util.XMLSymbols;
import org.apache.xerces.util.DefaultErrorHandler;
import java.util.Locale;
import java.util.Hashtable;
import java.util.StringTokenizer;
import java.io.IOException;
import java.io.Reader;
import java.io.InputStream;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Vector;
/**
* This class implements XMLGrammarLoader. It is designed to interact
* either with a proxy for a user application which wants to preparse schemas,
* or with our own Schema validator. It is hoped that none of these "external"
* classes will therefore need to communicate directly
* with XSDHandler in future.
* <p>This class only knows how to make XSDHandler do its thing.
* The caller must ensure that all its properties (schemaLocation, JAXPSchemaSource
* etc.) have been properly set.
*
* @author Neil Graham, IBM
* @version $Id: XMLSchemaLoader.java,v 1.12 2002/11/11 20:47:31 neilg Exp $
*/
public class XMLSchemaLoader implements XMLGrammarLoader {
// Feature identifiers:
/** Feature identifier: schema full checking*/
protected static final String SCHEMA_FULL_CHECKING =
Constants.XERCES_FEATURE_PREFIX + Constants.SCHEMA_FULL_CHECKING;
/** Feature identifier: continue after fatal error. */
protected static final String CONTINUE_AFTER_FATAL_ERROR =
Constants.XERCES_FEATURE_PREFIX + Constants.CONTINUE_AFTER_FATAL_ERROR_FEATURE;
/** Feature identifier: allow java encodings to be recognized when parsing schema docs. */
protected static final String ALLOW_JAVA_ENCODINGS =
Constants.XERCES_FEATURE_PREFIX + Constants.ALLOW_JAVA_ENCODINGS_FEATURE;
// recognized features:
private static final String[] RECOGNIZED_FEATURES = {
SCHEMA_FULL_CHECKING,
CONTINUE_AFTER_FATAL_ERROR,
ALLOW_JAVA_ENCODINGS,
};
// property identifiers
/** Property identifier: symbol table. */
public static final String SYMBOL_TABLE =
Constants.XERCES_PROPERTY_PREFIX + Constants.SYMBOL_TABLE_PROPERTY;
/** Property identifier: error reporter. */
public static final String ERROR_REPORTER =
Constants.XERCES_PROPERTY_PREFIX + Constants.ERROR_REPORTER_PROPERTY;
/** Property identifier: error handler. */
protected static final String ERROR_HANDLER =
Constants.XERCES_PROPERTY_PREFIX + Constants.ERROR_HANDLER_PROPERTY;
/** Property identifier: entity resolver. */
public static final String ENTITY_RESOLVER =
Constants.XERCES_PROPERTY_PREFIX + Constants.ENTITY_RESOLVER_PROPERTY;
/** Property identifier: grammar pool. */
public static final String XMLGRAMMAR_POOL =
Constants.XERCES_PROPERTY_PREFIX + Constants.XMLGRAMMAR_POOL_PROPERTY;
/** Property identifier: schema location. */
protected static final String SCHEMA_LOCATION =
Constants.XERCES_PROPERTY_PREFIX + Constants.SCHEMA_LOCATION;
/** Property identifier: no namespace schema location. */
protected static final String SCHEMA_NONS_LOCATION =
Constants.XERCES_PROPERTY_PREFIX + Constants.SCHEMA_NONS_LOCATION;
/** Property identifier: JAXP schema source. */
protected static final String JAXP_SCHEMA_SOURCE =
Constants.JAXP_PROPERTY_PREFIX + Constants.SCHEMA_SOURCE;
// recognized properties
private static final String [] RECOGNIZED_PROPERTIES = {
SYMBOL_TABLE,
ERROR_REPORTER,
ERROR_HANDLER,
ENTITY_RESOLVER,
XMLGRAMMAR_POOL,
SCHEMA_LOCATION,
SCHEMA_NONS_LOCATION,
JAXP_SCHEMA_SOURCE,
};
// Data
// is Schema Full Checking enabled
private boolean fIsCheckedFully = false;
// is allow-java-encodings enabled?
private boolean fAllowJavaEncodings = false;
private SymbolTable fSymbolTable = null;
private XMLErrorReporter fErrorReporter = new XMLErrorReporter ();
private XMLEntityResolver fEntityResolver = null;
private XMLGrammarPool fGrammarPool = null;
private String fExternalSchemas = null;
private String fExternalNoNSSchema = null;
private Object fJAXPSource = null;
private Hashtable fJAXPCache;
private Locale fLocale = Locale.getDefault();
private XSDHandler fSchemaHandler;
// the grammar bucket
private XSGrammarBucket fGrammarBucket;
private XSDeclarationPool fDeclPool = null;
private SubstitutionGroupHandler fSubGroupHandler;
private CMBuilder fCMBuilder;
// boolean that tells whether we've tested the JAXP property.
private boolean fJAXPProcessed = false;
// containers
private XSDDescription fXSDDescription = new XSDDescription();
// default constructor. Create objects we absolutely need:
public XMLSchemaLoader() {
this( new SymbolTable(), null, new XMLEntityManager(), null, null, null);
}
public XMLSchemaLoader(SymbolTable symbolTable) {
this( symbolTable, null, new XMLEntityManager(), null, null, null);
}
XMLSchemaLoader(XMLErrorReporter errorReporter,
XSGrammarBucket grammarBucket,
SubstitutionGroupHandler sHandler, CMBuilder builder) {
this(null, errorReporter, null, grammarBucket, sHandler, builder);
}
XMLSchemaLoader(SymbolTable symbolTable,
XMLErrorReporter errorReporter,
XMLEntityResolver entityResolver,
XSGrammarBucket grammarBucket,
SubstitutionGroupHandler sHandler,
CMBuilder builder) {
fSymbolTable = symbolTable;
if(errorReporter == null) {
errorReporter = new XMLErrorReporter ();
errorReporter.setProperty(ERROR_HANDLER, new DefaultErrorHandler());
}
fErrorReporter = errorReporter;
fEntityResolver = entityResolver;
if(grammarBucket == null ) {
grammarBucket = new XSGrammarBucket();
}
fGrammarBucket = grammarBucket;
if(sHandler == null) {
sHandler = new SubstitutionGroupHandler(fGrammarBucket);
}
fSubGroupHandler = sHandler;
if(builder == null) {
builder = new CMBuilder();
}
fCMBuilder = builder;
fSchemaHandler = new XSDHandler(fGrammarBucket);
fDeclPool = new XSDeclarationPool();
fJAXPCache = new Hashtable();
}
/**
* Returns a list of feature identifiers that are recognized by
* this XMLGrammarLoader. This method may return null if no features
* are recognized.
*/
public String[] getRecognizedFeatures() {
return (String[])(RECOGNIZED_FEATURES.clone());
} // getRecognizedFeatures(): String[]
/**
* Returns the state of a feature.
*
* @param featureId The feature identifier.
*
* @throws XMLConfigurationException Thrown on configuration error.
*/
public boolean getFeature(String featureId)
throws XMLConfigurationException {
if(featureId.equals(SCHEMA_FULL_CHECKING)) {
return fIsCheckedFully;
} else if(featureId.equals(CONTINUE_AFTER_FATAL_ERROR)) {
return fErrorReporter.getFeature(CONTINUE_AFTER_FATAL_ERROR);
}
throw new XMLConfigurationException(XMLConfigurationException.NOT_RECOGNIZED, featureId);
} // getFeature (String): boolean
/**
* Sets the state of a feature.
*
* @param featureId The feature identifier.
* @param state The state of the feature.
*
* @throws XMLConfigurationException Thrown when a feature is not
* recognized or cannot be set.
*/
public void setFeature(String featureId,
boolean state) throws XMLConfigurationException {
if(featureId.equals(SCHEMA_FULL_CHECKING)) {
fIsCheckedFully = state;
} else if(featureId.equals(CONTINUE_AFTER_FATAL_ERROR)) {
fErrorReporter.setFeature(CONTINUE_AFTER_FATAL_ERROR, state);
} else if(featureId.equals(ALLOW_JAVA_ENCODINGS)) {
fAllowJavaEncodings = state;
} else {
throw new XMLConfigurationException(XMLConfigurationException.NOT_RECOGNIZED, featureId);
}
} // setFeature(String, boolean)
/**
* Returns a list of property identifiers that are recognized by
* this XMLGrammarLoader. This method may return null if no properties
* are recognized.
*/
public String[] getRecognizedProperties() {
return (String[])(RECOGNIZED_PROPERTIES.clone());
} // getRecognizedProperties(): String[]
/**
* Returns the state of a property.
*
* @param propertyId The property identifier.
*
* @throws XMLConfigurationException Thrown on configuration error.
*/
public Object getProperty(String propertyId)
throws XMLConfigurationException {
if(propertyId.equals( SYMBOL_TABLE)) {
return fSymbolTable;
} else if(propertyId.equals( ERROR_REPORTER)) {
return fErrorReporter;
} else if(propertyId.equals( ERROR_HANDLER)) {
return fErrorReporter.getErrorHandler();
} else if(propertyId.equals( ENTITY_RESOLVER)) {
return fEntityResolver;
} else if(propertyId.equals( XMLGRAMMAR_POOL)) {
return fGrammarPool;
} else if(propertyId.equals( SCHEMA_LOCATION)) {
return fExternalSchemas;
} else if(propertyId.equals( SCHEMA_NONS_LOCATION) ){
return fExternalNoNSSchema;
} else if(propertyId.equals( JAXP_SCHEMA_SOURCE)) {
return fJAXPSource;
}
throw new XMLConfigurationException(XMLConfigurationException.NOT_RECOGNIZED, propertyId);
} // getProperty(String): Object
/**
* Sets the state of a property.
*
* @param propertyId The property identifier.
* @param state The state of the property.
*
* @throws XMLConfigurationException Thrown when a property is not
* recognized or cannot be set.
*/
public void setProperty(String propertyId,
Object state) throws XMLConfigurationException, ClassCastException {
if(propertyId.equals( SYMBOL_TABLE)) {
fSymbolTable = (SymbolTable)state;
} else if(propertyId.equals( ERROR_REPORTER)) {
fErrorReporter = (XMLErrorReporter)state;
} else if(propertyId.equals( ERROR_HANDLER)) {
fErrorReporter.setProperty(propertyId, state);
} else if(propertyId.equals( ENTITY_RESOLVER)) {
fEntityResolver = (XMLEntityResolver)state;
} else if(propertyId.equals( XMLGRAMMAR_POOL)) {
fGrammarPool = (XMLGrammarPool)state;
} else if(propertyId.equals( SCHEMA_LOCATION)) {
fExternalSchemas = (String)state;
} else if(propertyId.equals( SCHEMA_NONS_LOCATION)) {
fExternalNoNSSchema = (String)state;
} else if(propertyId.equals( JAXP_SCHEMA_SOURCE)) {
fJAXPSource = state;
fJAXPProcessed = false;
} else
throw new XMLConfigurationException(XMLConfigurationException.NOT_RECOGNIZED, propertyId);
} // setProperty(String, Object)
/**
* Set the locale to use for messages.
*
* @param locale The locale object to use for localization of messages.
*
* @exception XNIException Thrown if the parser does not support the
* specified locale.
*/
public void setLocale(Locale locale) {
fLocale = locale;
} // setLocale(Locale)
/** Return the Locale the XMLGrammarLoader is using. */
public Locale getLocale() {
return fLocale;
} // getLocale(): Locale
/**
* Sets the error handler.
*
* @param errorHandler The error handler.
*/
public void setErrorHandler(XMLErrorHandler errorHandler) {
fErrorReporter.setProperty(ERROR_HANDLER, errorHandler);
} // setErrorHandler(XMLErrorHandler)
/** Returns the registered error handler. */
public XMLErrorHandler getErrorHandler() {
return fErrorReporter.getErrorHandler();
} // getErrorHandler(): XMLErrorHandler
/**
* Sets the entity resolver.
*
* @param entityResolver The new entity resolver.
*/
public void setEntityResolver(XMLEntityResolver entityResolver) {
fEntityResolver = entityResolver;
} // setEntityResolver(XMLEntityResolver)
/** Returns the registered entity resolver. */
public XMLEntityResolver getEntityResolver() {
return fEntityResolver;
} // getEntityResolver(): XMLEntityResolver
// reset all objects that "belong" to this one.
public void reset () {
fGrammarBucket.reset();
//we should retreive the initial grammar set given by the application
//to the parser and put it in local grammar bucket.
// make sure error reporter knows about schemas...
if(fErrorReporter.getMessageFormatter(XSMessageFormatter.SCHEMA_DOMAIN) == null) {
fErrorReporter.putMessageFormatter(XSMessageFormatter.SCHEMA_DOMAIN, new XSMessageFormatter());
}
if(fGrammarPool != null) {
Grammar [] initialGrammars = fGrammarPool.retrieveInitialGrammarSet(XMLGrammarDescription.XML_SCHEMA);
for (int i = 0; i < initialGrammars.length; i++) {
// put this grammar into the bucket, along with grammars
// imported by it (directly or indirectly)
if (!fGrammarBucket.putGrammar((SchemaGrammar)(initialGrammars[i]), true)) {
// REVISIT: a conflict between new grammar(s) and grammars
// in the bucket. What to do? A warning? An exception?
fErrorReporter.reportError(XSMessageFormatter.SCHEMA_DOMAIN,
"GrammarConflict", null,
XMLErrorReporter.SEVERITY_WARNING);
}
}
fCMBuilder.setDeclPool(null);
} else {
fDeclPool.reset();
fCMBuilder.setDeclPool(fDeclPool);
}
fSchemaHandler.reset(fErrorReporter, fEntityResolver,
fSymbolTable, fGrammarPool, fAllowJavaEncodings);
if(fGrammarPool == null) {
fDeclPool.reset();
fSchemaHandler.setDeclPool(fDeclPool);
} else {
fSchemaHandler.setDeclPool(null);
}
fSubGroupHandler.reset();
fJAXPProcessed = false;
} // reset()
/**
* Returns a Grammar object by parsing the contents of the
* entity pointed to by source.
*
* @param source the location of the entity which forms
* the starting point of the grammar to be constructed.
* @throws IOException When a problem is encountered reading the entity
* XNIException When a condition arises (such as a FatalError) that requires parsing
* of the entity be terminated.
*/
public Grammar loadGrammar(XMLInputSource source)
throws IOException, XNIException {
reset();
XSDDescription desc = new XSDDescription();
desc.fContextType = XSDDescription.CONTEXT_PREPARSE;
desc.setBaseSystemId(source.getBaseSystemId());
desc.setLiteralSystemId( source.getSystemId());
// none of the other fields make sense for preparsing
Hashtable locationPairs = new Hashtable();
if(!tokenizeSchemaLocationStr(fExternalSchemas, locationPairs)) {
fErrorReporter.reportError(XSMessageFormatter.SCHEMA_DOMAIN,
"SchemaLocation",
new Object[]{fExternalSchemas},
XMLErrorReporter.SEVERITY_WARNING);
}
if(fExternalNoNSSchema != null) {
LocationArray noNs = new LocationArray();
noNs.addLocation(fExternalNoNSSchema);
locationPairs.put(XMLSymbols.EMPTY_STRING, noNs);
}
SchemaGrammar grammar = loadSchema(desc, source, locationPairs);
if(grammar != null && fGrammarPool != null) {
fGrammarPool.cacheGrammars(XMLGrammarDescription.XML_SCHEMA, fGrammarBucket.getGrammars());
}
return grammar;
} // loadGrammar(XMLInputSource): Grammar
SchemaGrammar loadSchema(XSDDescription desc,
XMLInputSource source,
Hashtable locationPairs) throws IOException, XNIException {
// this should only be done once per invocation of this object;
// unless application alters JAXPSource in the mean time.
if(!fJAXPProcessed) {
processJAXPSchemaSource(locationPairs);
}
SchemaGrammar grammar = fSchemaHandler.parseSchema(source, desc, locationPairs);
// is full-checking enabled? If so, if we're preparsing we'll
// need to let XSConstraints have a go at the new grammar.
if(fIsCheckedFully) {
XSConstraints.fullSchemaChecking(fGrammarBucket, fSubGroupHandler, fCMBuilder, fErrorReporter);
}
return grammar;
} // loadSchema(XSDDescription, XMLInputSource): SchemaGrammar
// this makes use of the schema location property values.
// we store the namespace/location pairs in a hashtable (use "" as the
// namespace of absent namespace). when resolving an entity, we first try
// to find in the hashtable whether there is a value for that namespace,
// if so, pass that location value to the user-defined entity resolver.
public static XMLInputSource resolveDocument(XSDDescription desc, Hashtable locationPairs,
XMLEntityResolver entityResolver) throws IOException {
String loc = null;
// we consider the schema location properties for import
if (desc.getContextType() == XSDDescription.CONTEXT_IMPORT ||
desc.fromInstance()) {
// use empty string as the key for absent namespace
String namespace = desc.getTargetNamespace();
String ns = namespace == null ? XMLSymbols.EMPTY_STRING : namespace;
// get the location hint for that namespace
LocationArray tempLA = (LocationArray)locationPairs.get(ns);
if(tempLA != null)
loc = tempLA.getFirstLocation();
}
// if it's not import, or if the target namespace is not set
// in the schema location properties, use location hint
if (loc == null) {
String[] hints = desc.getLocationHints();
if (hints != null && hints.length > 0)
loc = hints[0];
}
String expandedLoc = XMLEntityManager.expandSystemId(loc, desc.getBaseSystemId());
desc.setLiteralSystemId(loc);
desc.setExpandedSystemId(expandedLoc);
return entityResolver.resolveEntity(desc);
}
// this method takes a SchemaLocation string.
// If an error is encountered, false is returned;
// otherwise, true is returned. In either case, locations
// is augmented to include as many tokens as possible.
// @param schemaStr The schemaLocation string to tokenize
// @param locations Hashtable mapping namespaces to LocationArray objects holding lists of locaitons
// @return true if no problems; false if string could not be tokenized
public static boolean tokenizeSchemaLocationStr(String schemaStr, Hashtable locations) {
if (schemaStr!= null) {
StringTokenizer t = new StringTokenizer(schemaStr, " \n\t\r");
String namespace, location;
while (t.hasMoreTokens()) {
namespace = t.nextToken ();
if (!t.hasMoreTokens()) {
return false; // error!
}
location = t.nextToken();
LocationArray la = ((LocationArray)locations.get(namespace));
if(la == null) {
la = new LocationArray();
locations.put(namespace, la);
}
la.addLocation(location);
}
}
return true;
} // tokenizeSchemaLocation(String, Hashtable): boolean
/**
* Translate the various JAXP SchemaSource property types to XNI
* XMLInputSource. Valid types are: String, org.xml.sax.InputSource,
* InputStream, File, or Object[] of any of previous types.
* REVISIT: the JAXP 1.2 spec is less than clear as to whether this property
* should be available to imported schemas. I have assumed
* that it should. - NG
*/
private void processJAXPSchemaSource(Hashtable locationPairs) throws IOException {
fJAXPProcessed = true;
if (fJAXPSource == null) {
return;
}
Class componentType = fJAXPSource.getClass().getComponentType();
XMLInputSource xis = null;
String sid = null;
if (componentType == null) {
// Not an array
if(fJAXPSource instanceof InputStream ||
fJAXPSource instanceof InputSource) {
SchemaGrammar g = (SchemaGrammar)fJAXPCache.get(fJAXPSource);
if(g != null) {
fGrammarBucket.putGrammar(g);
return;
}
}
fXSDDescription.reset();
xis = xsdToXMLInputSource(fJAXPSource);
sid = xis.getSystemId();
fXSDDescription.fContextType = XSDDescription.CONTEXT_PREPARSE;
if (sid != null) {
fXSDDescription.setLiteralSystemId(sid);
fXSDDescription.setExpandedSystemId(sid);
fXSDDescription.fLocationHints = new String[]{sid};
}
SchemaGrammar g = loadSchema(fXSDDescription, xis, locationPairs);
if(fJAXPSource instanceof InputStream ||
fJAXPSource instanceof InputSource) {
fJAXPCache.put(fJAXPSource, g);
}
fGrammarBucket.putGrammar(g);
return ;
} else if ( (componentType != Object.class) &&
(componentType != String.class) &&
(componentType != File.class) &&
(componentType != InputStream.class) &&
(componentType != InputSource.class)
) {
// Not an Object[], String[], File[], InputStream[], InputSource[]
throw new XMLConfigurationException(
XMLConfigurationException.NOT_SUPPORTED, "\""+JAXP_SCHEMA_SOURCE+
"\" property cannot have an array of type {"+componentType.getName()+
"}. Possible types of the array supported are Object, String, File, "+
"InputStream, InputSource.");
}
// JAXP spec. allow []s of type String, File, InputStream,
// InputSource also, apart from [] of type Object.
Object[] objArr = (Object[]) fJAXPSource;
//make local vector for storing targetn namespaces of schemasources specified in object arrays.
Vector jaxpSchemaSourceNamespaces = new Vector() ;
for (int i = 0; i < objArr.length; i++) {
if(objArr[i] instanceof InputStream ||
objArr[i] instanceof InputSource) {
SchemaGrammar g = (SchemaGrammar)fJAXPCache.get(objArr[i]);
if (g != null) {
fGrammarBucket.putGrammar(g);
continue;
}
}
fXSDDescription.reset();
xis = xsdToXMLInputSource(objArr[i]);
sid = xis.getSystemId();
fXSDDescription.fContextType = XSDDescription.CONTEXT_PREPARSE;
if (sid != null) {
fXSDDescription.setLiteralSystemId(sid);
fXSDDescription.setExpandedSystemId(sid);
fXSDDescription.fLocationHints = new String[]{sid};
}
String targetNamespace = null ;
SchemaGrammar grammar = loadSchema(fXSDDescription, xis, locationPairs);
if(grammar != null){
targetNamespace = grammar.getTargetNamespace() ;
if(jaxpSchemaSourceNamespaces.contains(targetNamespace)){
//when an array of objects is passed it is illegal to have two schemas that share same namespace.
throw new java.lang.IllegalArgumentException(
" When using array of Objects as the value of SCHEMA_SOURCE property , " +
"no two Schemas should share the same targetNamespace. " );
}
else{
jaxpSchemaSourceNamespaces.add(targetNamespace) ;
}
if(objArr[i] instanceof InputStream ||
objArr[i] instanceof InputSource) {
fJAXPCache.put(objArr[i], grammar);
}
fGrammarBucket.putGrammar(grammar);
}
else{
//REVISIT: What should be the acutal behavior if grammar can't be loaded as specified in schema source?
}
}
}//processJAXPSchemaSource
private XMLInputSource xsdToXMLInputSource(
Object val)
{
if (val instanceof String) {
// String value is treated as a URI that is passed through the
// EntityResolver
String loc = (String) val;
if (fEntityResolver != null) {
fXSDDescription.reset();
fXSDDescription.setValues(null, loc, null, null);
XMLInputSource xis = null;
try {
xis = fEntityResolver.resolveEntity(fXSDDescription);
} catch (IOException ex) {
fErrorReporter.reportError(XSMessageFormatter.SCHEMA_DOMAIN,
"schema_reference.4",
new Object[] { loc }, XMLErrorReporter.SEVERITY_ERROR);
}
if (xis == null) {
// REVISIT: can this happen?
// Treat value as a URI and pass in as systemId
return new XMLInputSource(null, loc, null);
}
return xis;
}
} else if (val instanceof InputSource) {
return saxToXMLInputSource((InputSource) val);
} else if (val instanceof InputStream) {
return new XMLInputSource(null, null, null,
(InputStream) val, null);
} else if (val instanceof File) {
File file = (File) val;
InputStream is = null;
try {
is = new BufferedInputStream(new FileInputStream(file));
} catch (FileNotFoundException ex) {
fErrorReporter.reportError(XSMessageFormatter.SCHEMA_DOMAIN,
"schema_reference.4", new Object[] { file.toString() },
XMLErrorReporter.SEVERITY_ERROR);
}
return new XMLInputSource(null, null, null, is, null);
}
throw new XMLConfigurationException(
XMLConfigurationException.NOT_SUPPORTED, "\""+JAXP_SCHEMA_SOURCE+
"\" property cannot have a value of type {"+val.getClass().getName()+
"}. Possible types of the value supported are String, File, InputStream, "+
"InputSource OR an array of these types.");
}
//Convert a SAX InputSource to an equivalent XNI XMLInputSource
private static XMLInputSource saxToXMLInputSource(InputSource sis) {
String publicId = sis.getPublicId();
String systemId = sis.getSystemId();
Reader charStream = sis.getCharacterStream();
if (charStream != null) {
return new XMLInputSource(publicId, systemId, null, charStream,
null);
}
InputStream byteStream = sis.getByteStream();
if (byteStream != null) {
return new XMLInputSource(publicId, systemId, null, byteStream,
sis.getEncoding());
}
return new XMLInputSource(publicId, systemId, null);
}
static class LocationArray{
int length ;
String [] locations = new String[2];
public void resize(int oldLength , int newLength){
String [] temp = new String[newLength] ;
System.arraycopy(locations, 0, temp, 0, Math.min(oldLength, newLength));
locations = temp ;
length = Math.min(oldLength, newLength);
}
public void addLocation(String location){
if(length >= locations.length ){
resize(length, Math.max(1, length*2));
}
locations[length++] = location;
}//setLocation()
public String [] getLocationArray(){
if(length < locations.length ){
resize(locations.length, length);
}
return locations;
}//getLocationArray()
public String getFirstLocation(){
return length > 0 ? locations[0] : null;
}
public int getLength(){
return length ;
}
} //locationArray
} // XMLGrammarLoader