abstractdomparser.cpp

来自「IBM的解析xml的工具Xerces的源代码」· C++ 代码 · 共 1,615 行 · 第 1/4 页

    fScanner->setSecurityManager(securityManager);
}

void AbstractDOMParser::setLoadExternalDTD(const bool newState)
{
    fScanner->setLoadExternalDTD(newState);
}

void AbstractDOMParser::setCalculateSrcOfs(const bool newState)
{
    fScanner->setCalculateSrcOfs(newState);
}

void AbstractDOMParser::setStandardUriConformant(const bool newState)
{
    fScanner->setStandardUriConformant(newState);
}

void AbstractDOMParser::useScanner(const XMLCh* const scannerName)
{
    XMLScanner* tempScanner = XMLScannerResolver::resolveScanner
    (
        scannerName
        , fValidator
        , fGrammarResolver
        , fMemoryManager
    );

    if (tempScanner) {

        tempScanner->setParseSettings(fScanner);
        tempScanner->setURIStringPool(fURIStringPool);
        delete fScanner;
        fScanner = tempScanner;
    }
}

void AbstractDOMParser::setCreateSchemaInfo(const bool create)
{
    fCreateSchemaInfo = create;
    if(fCreateSchemaInfo)
        fScanner->setPSVIHandler(this);
    else if(!fPSVIHandler)
        fScanner->setPSVIHandler(0);
}

// ---------------------------------------------------------------------------
//  AbstractDOMParser: Parsing methods
// ---------------------------------------------------------------------------
void AbstractDOMParser::parse(const InputSource& source)
{
    // Avoid multiple entrance
    if (fParseInProgress)
        ThrowXMLwithMemMgr(IOException, XMLExcepts::Gen_ParseInProgress, fMemoryManager);

    try
    {
        fParseInProgress = true;
        fScanner->scanDocument(source);
        fParseInProgress = false;
    }
    catch(const OutOfMemoryException&)
    {
        throw;
    }    
    catch(...)
    {
        fParseInProgress = false;
        throw;
    }
}

void AbstractDOMParser::parse(const XMLCh* const systemId)
{
    // Avoid multiple entrance
    if (fParseInProgress)
        ThrowXMLwithMemMgr(IOException, XMLExcepts::Gen_ParseInProgress, fMemoryManager);

    try
    {
        fParseInProgress = true;
        fScanner->scanDocument(systemId);
        fParseInProgress = false;
    }
    catch(const OutOfMemoryException&)
    {
        throw;
    }
    catch(...)
    {
        fParseInProgress = false;
        throw;
    }
}

void AbstractDOMParser::parse(const char* const systemId)
{
    // Avoid multiple entrance
    if (fParseInProgress)
        ThrowXMLwithMemMgr(IOException, XMLExcepts::Gen_ParseInProgress, fMemoryManager);

    try
    {
        fParseInProgress = true;
        fScanner->scanDocument(systemId);
        fParseInProgress = false;
    }
    catch(const OutOfMemoryException&)
    {
        throw;
    }
    catch(...)
    {
        fParseInProgress = false;
        throw;
    }
}



// ---------------------------------------------------------------------------
//  AbstractDOMParser: Progressive parse methods
// ---------------------------------------------------------------------------
bool AbstractDOMParser::parseFirst( const XMLCh* const    systemId
                                   ,       XMLPScanToken&  toFill)
{
    //
    //  Avoid multiple entrance. We cannot enter here while a regular parse
    //  is in progress.
    //
    if (fParseInProgress)
        ThrowXMLwithMemMgr(IOException, XMLExcepts::Gen_ParseInProgress, fMemoryManager);

    return fScanner->scanFirst(systemId, toFill);
}

bool AbstractDOMParser::parseFirst( const char* const         systemId
                                   ,       XMLPScanToken&      toFill)
{
    //
    //  Avoid multiple entrance. We cannot enter here while a regular parse
    //  is in progress.
    //
    if (fParseInProgress)
        ThrowXMLwithMemMgr(IOException, XMLExcepts::Gen_ParseInProgress, fMemoryManager);

    return fScanner->scanFirst(systemId, toFill);
}

bool AbstractDOMParser::parseFirst( const InputSource& source
                                   ,       XMLPScanToken&  toFill)
{
    //
    //  Avoid multiple entrance. We cannot enter here while a regular parse
    //  is in progress.
    //
    if (fParseInProgress)
        ThrowXMLwithMemMgr(IOException, XMLExcepts::Gen_ParseInProgress, fMemoryManager);

    return fScanner->scanFirst(source, toFill);
}

bool AbstractDOMParser::parseNext(XMLPScanToken& token)
{
    return fScanner->scanNext(token);
}

void AbstractDOMParser::parseReset(XMLPScanToken& token)
{
    // Reset the scanner, and then reset the parser
    fScanner->scanReset(token);
    reset();
}


// ---------------------------------------------------------------------------
//  AbstractDOMParser: Implementation of PSVIHandler interface
// ---------------------------------------------------------------------------
void AbstractDOMParser::handleElementPSVI(const XMLCh* const            localName 
                                        , const XMLCh* const            uri
                                        ,       PSVIElement *           elementInfo)
{
    // associate the info now; if the user wants, she can override what we did
    if(fCreateSchemaInfo)
    {
        DOMTypeInfoImpl* typeInfo=new (getDocument()) DOMTypeInfoImpl();
        typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Validity, elementInfo->getValidity());
        typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Validitation_Attempted, elementInfo->getValidationAttempted());
        if(elementInfo->getTypeDefinition())
        {
            typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Type, elementInfo->getTypeDefinition()->getTypeCategory());
            typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Anonymous, elementInfo->getTypeDefinition()->getAnonymous());
            typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Namespace, 
                fDocument->getPooledString(elementInfo->getTypeDefinition()->getNamespace()));
            typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Name, 
                fDocument->getPooledString(elementInfo->getTypeDefinition()->getName()));
        }
        else if(elementInfo->getValidity()==PSVIItem::VALIDITY_VALID)
        {
            // if we are valid but we don't have a type validator, we are xs:anyType
            typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Type, XSTypeDefinition::COMPLEX_TYPE);
            typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Anonymous, false);
            typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Namespace, SchemaSymbols::fgURI_SCHEMAFORSCHEMA);
            typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Name, SchemaSymbols::fgATTVAL_ANYTYPE);
        }
        if(elementInfo->getMemberTypeDefinition())
        {
            typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Member_Type_Definition_Anonymous, elementInfo->getMemberTypeDefinition()->getAnonymous());
            typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Member_Type_Definition_Namespace, 
                fDocument->getPooledString(elementInfo->getMemberTypeDefinition()->getNamespace()));
            typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Member_Type_Definition_Name, 
                fDocument->getPooledString(elementInfo->getMemberTypeDefinition()->getName()));
        }
        if(elementInfo->getElementDeclaration())
            typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Nil, elementInfo->getElementDeclaration()->getNillable());
        typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Schema_Default, fDocument->getPooledString(elementInfo->getSchemaDefault()));
        typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Schema_Normalized_Value, fDocument->getPooledString(elementInfo->getSchemaNormalizedValue()));
        typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Schema_Specified, true);
        ((DOMElementNSImpl*)fCurrentParent)->setTypeInfo(typeInfo);
    }
    if(fPSVIHandler)
        fPSVIHandler->handleElementPSVI(localName, uri, elementInfo);
}

void AbstractDOMParser::handlePartialElementPSVI(const XMLCh* const            localName 
                                               , const XMLCh* const            uri
                                               ,       PSVIElement *           elementInfo)
{
    if(fPSVIHandler)
        fPSVIHandler->handlePartialElementPSVI(localName, uri, elementInfo);
}

void AbstractDOMParser::handleAttributesPSVI( const XMLCh* const            localName 
                                            , const XMLCh* const            uri
                                            ,       PSVIAttributeList *     psviAttributes)
{
    if(fCreateSchemaInfo)
    {
        for (unsigned int index=0; index < psviAttributes->getLength(); index++) {
            XERCES_CPP_NAMESPACE_QUALIFIER PSVIAttribute *attrInfo=psviAttributes->getAttributePSVIAtIndex(index);
            XERCES_CPP_NAMESPACE_QUALIFIER DOMNode* pAttrNode=fCurrentNode->getAttributes()->getNamedItemNS(psviAttributes->getAttributeNamespaceAtIndex(index),
                                                                                                            psviAttributes->getAttributeNameAtIndex(index));
            if(pAttrNode!=NULL)
            {
                DOMTypeInfoImpl* typeInfo=new (getDocument()) DOMTypeInfoImpl();
                typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Validity, attrInfo->getValidity());
                typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Validitation_Attempted, attrInfo->getValidationAttempted());
                if(attrInfo->getTypeDefinition())
                {
                    typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Type, XSTypeDefinition::SIMPLE_TYPE);
                    typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Anonymous, attrInfo->getTypeDefinition()->getAnonymous());
                    typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Namespace, 
                        fDocument->getPooledString(attrInfo->getTypeDefinition()->getNamespace()));
                    typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Name, 
                        fDocument->getPooledString(attrInfo->getTypeDefinition()->getName()));
                }
                else if(attrInfo->getValidity()==PSVIItem::VALIDITY_VALID)
                {
                    // if we are valid but we don't have a type validator, we are xs:anySimpleType
                    typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Type, XSTypeDefinition::SIMPLE_TYPE);
                    typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Anonymous, false);
                    typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Namespace, SchemaSymbols::fgURI_SCHEMAFORSCHEMA);
                    typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Type_Definition_Name, SchemaSymbols::fgDT_ANYSIMPLETYPE);
                }
                if(attrInfo->getMemberTypeDefinition())
                {
                    typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Member_Type_Definition_Anonymous, attrInfo->getMemberTypeDefinition()->getAnonymous());
                    typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Member_Type_Definition_Namespace, 
                        fDocument->getPooledString(attrInfo->getMemberTypeDefinition()->getNamespace()));
                    typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Member_Type_Definition_Name, 
                        fDocument->getPooledString(attrInfo->getMemberTypeDefinition()->getName()));
                }
                typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Schema_Default, fDocument->getPooledString(attrInfo->getSchemaDefault()));
                typeInfo->setStringProperty(DOMPSVITypeInfo::PSVI_Schema_Normalized_Value, fDocument->getPooledString(attrInfo->getSchemaNormalizedValue()));
                typeInfo->setNumericProperty(DOMPSVITypeInfo::PSVI_Schema_Specified, true);
                ((DOMAttrImpl*)pAttrNode)->setTypeInfo(typeInfo);
            }
        }
    }
    // associate the info now; if the user wants, she can override what we did
    if(fPSVIHandler)
        fPSVIHandler->handleAttributesPSVI(localName, uri, psviAttributes);
}

// ---------------------------------------------------------------------------
//  AbstractDOMParser: Implementation of XMLDocumentHandler interface
// ---------------------------------------------------------------------------
void AbstractDOMParser::docCharacters(  const   XMLCh* const    chars
                              , const unsigned int    length
                              , const bool cdataSection)
{
    // Ignore chars outside of content
    if (!fWithinElement)
        return;

    // revisit.  Is it really safe to null-terminate here?
    //                Does the scanner do it already?
    //                If scanner goes up to the very end of an unterminated
    //                buffer, we may be stepping on something bad here.
    //           Probably best to modify the scanner to null terminate.
    XMLCh savedChar = chars[length];
    XMLCh *ncChars  = (XMLCh *)chars;   // cast off const
    ncChars[length] = 0;
    if (cdataSection == true)
    {
        DOMCDATASection *node = fDocument->createCDATASection(chars);
        fCurrentParent->appendChild(node);
        fCurrentNode = node;
    }
    else
    {
        if (fCurrentNode->getNodeType() == DOMNode::TEXT_NODE)
        {
            DOMText *node = (DOMText *)fCurrentNode;
            node->appendData(chars);
        }
        else
        {
            DOMText *node = fDocument->createTextNode(chars);
            fCurrentParent->appendChild(node);
            fCurrentNode = node;
        }
    }
    ncChars[length] = savedChar;
    return;
}


void AbstractDOMParser::docComment(const XMLCh* const comment)
{
    if (fCreateCommentNodes) {
        DOMComment *dcom = fDocument->createComment(comment);
        fCurrentParent->appendChild(dcom);
        fCurrentNode = dcom;
    }
}


void AbstractDOMParser::docPI(  const   XMLCh* const    target
                      , const XMLCh* const    data)
{
    DOMProcessingInstruction *pi = fDocument->createProcessingInstruction
        (
        target
        , data
        );
    fCurrentParent->appendChild(pi);
    fCurrentNode = pi;
}


void AbstractDOMParser::endEntityReference(const XMLEntityDecl&)
{
    if (!fCreateEntityReferenceNodes) return;

    DOMEntityReferenceImpl *erImpl = 0;
    DOMNode* firstChild = 0;

    if (fCurrentParent->getNodeType() == DOMNode::ENTITY_REFERENCE_NODE) {
        erImpl = (DOMEntityReferenceImpl *) fCurrentParent;
        firstChild = erImpl->getFirstChild();
    }

    fCurrentParent = fNodeStack->pop();

    fCurrentNode   = fCurrentParent;

    if (erImpl)
        erImpl->setReadOnly(true, true);
}


void AbstractDOMParser::endElement( const   XMLElementDecl&
                           , const unsigned int
                           , const bool
                           , const XMLCh* const)
{
    fCurrentNode   = fCurrentParent;
    fCurrentParent = fNodeStack->pop();

    // If we've hit the end of content, clear the flag
    if (fNodeStack->empty())
        fWithinElement = false;
}

void AbstractDOMParser::elementTypeInfo( const   XMLCh * const  typeName
                           , const XMLCh *const                 typeURI)
{
}


void AbstractDOMParser::ignorableWhitespace(const   XMLCh* const    chars
                                    , const unsigned int    length
                                    , const bool)
{
    // Ignore chars before the root element
    if (!fWithinElement || !fIncludeIgnorableWhitespace)
        return;

    // revisit.  Not safe to slam in a null like this.
    XMLCh savedChar = chars[length];
    XMLCh *ncChars  = (XMLCh *)chars;   // cast off const
    ncChars[length] = chNull;