SGXMLScanner.cpp

/*
 * Copyright 2002, 2003,2004 The Apache Software Foundation.
 * 
 * Licensed 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.
 */

/*
 * $Id$
 */


// ---------------------------------------------------------------------------
//  Includes
// ---------------------------------------------------------------------------
#include <xercesc/internal/SGXMLScanner.hpp>
#include <xercesc/util/RuntimeException.hpp>
#include <xercesc/util/UnexpectedEOFException.hpp>
#include <xercesc/util/XMLUri.hpp>
#include <xercesc/framework/LocalFileInputSource.hpp>
#include <xercesc/framework/URLInputSource.hpp>
#include <xercesc/framework/XMLDocumentHandler.hpp>
#include <xercesc/framework/XMLEntityHandler.hpp>
#include <xercesc/framework/XMLPScanToken.hpp>
#include <xercesc/framework/MemoryManager.hpp>
#include <xercesc/framework/XMLGrammarPool.hpp>
#include <xercesc/framework/psvi/PSVIHandler.hpp>
#include <xercesc/framework/psvi/PSVIAttributeList.hpp>
#include <xercesc/internal/EndOfEntityException.hpp>
#include <xercesc/validators/common/ContentLeafNameTypeVector.hpp>
#include <xercesc/validators/schema/SchemaValidator.hpp>
#include <xercesc/validators/schema/TraverseSchema.hpp>
#include <xercesc/validators/schema/XSDDOMParser.hpp>
#include <xercesc/validators/schema/SubstitutionGroupComparator.hpp>
#include <xercesc/validators/schema/XMLSchemaDescriptionImpl.hpp>
#include <xercesc/validators/schema/identity/IdentityConstraintHandler.hpp>
#include <xercesc/validators/schema/identity/IC_Selector.hpp>
#include <xercesc/util/OutOfMemoryException.hpp>
#include <xercesc/util/HashPtr.hpp>

XERCES_CPP_NAMESPACE_BEGIN

inline XMLAttDefList& getAttDefList(ComplexTypeInfo* currType, XMLElementDecl* elemDecl);

// ---------------------------------------------------------------------------
//  SGXMLScanner: Constructors and Destructor
// ---------------------------------------------------------------------------
SGXMLScanner::SGXMLScanner( XMLValidator* const valToAdopt
                          , GrammarResolver* const grammarResolver
                          , MemoryManager* const manager) :

    XMLScanner(valToAdopt, grammarResolver, manager)
    , fSeeXsi(false)
    , fGrammarType(Grammar::UnKnown)
    , fElemStateSize(16)
    , fElemState(0)
    , fContent(1023, manager)
    , fEntityTable(0)
    , fRawAttrList(0)
    , fRawAttrColonListSize(32)
    , fRawAttrColonList(0)
    , fSchemaGrammar(0)
    , fSchemaValidator(0)
    , fICHandler(0)
    , fElemNonDeclPool(0)
    , fElemCount(0)
    , fAttDefRegistry(0)
    , fUndeclaredAttrRegistryNS(0)
    , fPSVIAttrList(0)
    , fModel(0)
    , fPSVIElement(0)
    , fErrorStack(0)       
{
    try
    {
         commonInit();

         if (valToAdopt)
         {
             if (!valToAdopt->handlesSchema())
                ThrowXMLwithMemMgr(RuntimeException, XMLExcepts::Gen_NoSchemaValidator, fMemoryManager);
         }
         else
         {
             fValidator = fSchemaValidator;
         }
    }
    catch(const OutOfMemoryException&)
    {
        throw;
    }
    catch(...)
    {
        cleanUp();
        throw;
    }
}

SGXMLScanner::SGXMLScanner( XMLDocumentHandler* const docHandler
                          , DocTypeHandler* const     docTypeHandler
                          , XMLEntityHandler* const   entityHandler
                          , XMLErrorReporter* const   errHandler
                          , XMLValidator* const       valToAdopt
                          , GrammarResolver* const    grammarResolver
                          , MemoryManager* const      manager) :

    XMLScanner(docHandler, docTypeHandler, entityHandler, errHandler, valToAdopt, grammarResolver, manager)
    , fSeeXsi(false)
    , fGrammarType(Grammar::UnKnown)
    , fElemStateSize(16)
    , fElemState(0)
    , fContent(1023, manager)
    , fEntityTable(0)
    , fRawAttrList(0)
    , fRawAttrColonListSize(32)
    , fRawAttrColonList(0)
    , fSchemaGrammar(0)
    , fSchemaValidator(0)
    , fICHandler(0)
    , fElemNonDeclPool(0)
    , fElemCount(0)
    , fAttDefRegistry(0)
    , fUndeclaredAttrRegistryNS(0)
    , fPSVIAttrList(0)
    , fModel(0)
    , fPSVIElement(0)
    , fErrorStack(0)        
{
    try
    {	
        commonInit();

         if (valToAdopt)
         {
             if (!valToAdopt->handlesSchema())
                ThrowXMLwithMemMgr(RuntimeException, XMLExcepts::Gen_NoSchemaValidator, fMemoryManager);
         }
         else
         {
             fValidator = fSchemaValidator;
         }
    }
    catch(const OutOfMemoryException&)
    {
        throw;
    }
    catch(...)
    {
        cleanUp();
        throw;
    }
}

SGXMLScanner::~SGXMLScanner()
{
    cleanUp();
}

// ---------------------------------------------------------------------------
//  XMLScanner: Getter methods
// ---------------------------------------------------------------------------
NameIdPool<DTDEntityDecl>* SGXMLScanner::getEntityDeclPool()
{
    return 0;
}

const NameIdPool<DTDEntityDecl>* SGXMLScanner::getEntityDeclPool() const
{
    return 0;
}

// ---------------------------------------------------------------------------
//  SGXMLScanner: Main entry point to scan a document
// ---------------------------------------------------------------------------
void SGXMLScanner::scanDocument(const InputSource& src)
{
    //  Bump up the sequence id for this parser instance. This will invalidate
    //  any previous progressive scan tokens.
    fSequenceId++;

    try
    {
        //  Reset the scanner and its plugged in stuff for a new run. This
        //  resets all the data structures, creates the initial reader and
        //  pushes it on the stack, and sets up the base document path.
        scanReset(src);

        // If we have a document handler, then call the start document
        if (fDocHandler)
            fDocHandler->startDocument();