in src/org/apache/xerces/impl/xs/XMLSchemaValidator.java [1889:2324]
Augmentations handleStartElement(QName element, XMLAttributes attributes, Augmentations augs) {
if (DEBUG) {
System.out.println("==>handleStartElement: " + element);
}
// root element
if (fElementDepth == -1 && fValidationManager.isGrammarFound()) {
if (fSchemaType == null) {
// schemaType is not specified
// if a DTD grammar is found, we do the same thing as Dynamic:
// if a schema grammar is found, validation is performed;
// otherwise, skip the whole document.
fSchemaDynamicValidation = true;
} else {
// [1] Either schemaType is DTD, and in this case validate/schema is turned off
// [2] Validating against XML Schemas only
// [a] dynamic validation is false: report error if SchemaGrammar is not found
// [b] dynamic validation is true: if grammar is not found ignore.
}
}
// get xsi:schemaLocation and xsi:noNamespaceSchemaLocation attributes,
// parse them to get the grammars. But only do this if the grammar can grow.
if (!fUseGrammarPoolOnly) {
String sLocation =
attributes.getValue(SchemaSymbols.URI_XSI, SchemaSymbols.XSI_SCHEMALOCATION);
String nsLocation =
attributes.getValue(SchemaSymbols.URI_XSI, SchemaSymbols.XSI_NONAMESPACESCHEMALOCATION);
//store the location hints.. we need to do it so that we can defer the loading of grammar until
//there is a reference to a component from that namespace. To provide location hints to the
//application for a namespace
storeLocations(sLocation, nsLocation);
}
// if we are in the content of "skip", then just skip this element
// REVISIT: is this the correct behaviour for ID constraints? -NG
if (fSkipValidationDepth >= 0) {
fElementDepth++;
if (fAugPSVI)
augs = getEmptyAugs(augs);
return augs;
}
// if we are not skipping this element, and there is a content model,
// we try to find the corresponding decl object for this element.
// the reason we move this part of code here is to make sure the
// error reported here (if any) is stored within the parent element's
// context, instead of that of the current element.
Object decl = null;
if (fCurrentCM != null) {
decl = fCurrentCM.oneTransition(element, fCurrCMState, fSubGroupHandler);
// it could be an element decl or a wildcard decl
if (fCurrCMState[0] == XSCMValidator.FIRST_ERROR) {
XSComplexTypeDecl ctype = (XSComplexTypeDecl) fCurrentType;
//REVISIT: is it the only case we will have particle = null?
Vector next;
if (ctype.fParticle != null
&& (next = fCurrentCM.whatCanGoHere(fCurrCMState)).size() > 0) {
String expected = expectedStr(next);
final int[] occurenceInfo = fCurrentCM.occurenceInfo(fCurrCMState);
String elemExpandedQname = (element.uri != null) ? "{"+'"'+element.uri+'"'+":"+element.localpart+"}" : element.localpart;
if (occurenceInfo != null) {
final int minOccurs = occurenceInfo[0];
final int maxOccurs = occurenceInfo[1];
final int count = occurenceInfo[2];
// Check if this is a violation of minOccurs
if (count < minOccurs) {
final int required = minOccurs - count;
if (required > 1) {
reportSchemaError("cvc-complex-type.2.4.h", new Object[] { element.rawname,
fCurrentCM.getTermName(occurenceInfo[3]), Integer.toString(minOccurs), Integer.toString(required) });
}
else {
reportSchemaError("cvc-complex-type.2.4.g", new Object[] { element.rawname,
fCurrentCM.getTermName(occurenceInfo[3]), Integer.toString(minOccurs) });
}
}
// Check if this is a violation of maxOccurs
else if (count >= maxOccurs && maxOccurs != SchemaSymbols.OCCURRENCE_UNBOUNDED) {
reportSchemaError("cvc-complex-type.2.4.e", new Object[] { element.rawname,
expected, Integer.toString(maxOccurs) });
}
else {
reportSchemaError("cvc-complex-type.2.4.a", new Object[] { elemExpandedQname, expected });
}
}
else {
reportSchemaError("cvc-complex-type.2.4.a", new Object[] { elemExpandedQname, expected });
}
}
else {
final int[] occurenceInfo = fCurrentCM.occurenceInfo(fCurrCMState);
if (occurenceInfo != null) {
final int maxOccurs = occurenceInfo[1];
final int count = occurenceInfo[2];
// Check if this is a violation of maxOccurs
if (count >= maxOccurs && maxOccurs != SchemaSymbols.OCCURRENCE_UNBOUNDED) {
reportSchemaError("cvc-complex-type.2.4.f", new Object[] { fCurrentCM.getTermName(occurenceInfo[3]), Integer.toString(maxOccurs) });
}
else {
reportSchemaError("cvc-complex-type.2.4.d", new Object[] { element.rawname });
}
}
else {
reportSchemaError("cvc-complex-type.2.4.d", new Object[] { element.rawname });
}
}
}
}
// if it's not the root element, we push the current states in the stacks
if (fElementDepth != -1) {
ensureStackCapacity();
fSubElementStack[fElementDepth] = true;
fSubElement = false;
fElemDeclStack[fElementDepth] = fCurrentElemDecl;
fNilStack[fElementDepth] = fNil;
fNotationStack[fElementDepth] = fNotation;
fTypeStack[fElementDepth] = fCurrentType;
fStrictAssessStack[fElementDepth] = fStrictAssess;
fCMStack[fElementDepth] = fCurrentCM;
fCMStateStack[fElementDepth] = fCurrCMState;
fSawTextStack[fElementDepth] = fSawText;
fStringContent[fElementDepth] = fSawCharacters;
}
// increase the element depth after we've saved
// all states for the parent element
fElementDepth++;
fCurrentElemDecl = null;
XSWildcardDecl wildcard = null;
fCurrentType = null;
fStrictAssess = true;
fNil = false;
fNotation = null;
// and the buffer to hold the value of the element
fBuffer.setLength(0);
fSawText = false;
fSawCharacters = false;
// check what kind of declaration the "decl" from
// oneTransition() maps to
if (decl != null) {
if (decl instanceof XSElementDecl) {
fCurrentElemDecl = (XSElementDecl) decl;
} else {
wildcard = (XSWildcardDecl) decl;
}
}
// if the wildcard is skip, then return
if (wildcard != null && wildcard.fProcessContents == XSWildcardDecl.PC_SKIP) {
fSkipValidationDepth = fElementDepth;
if (fAugPSVI)
augs = getEmptyAugs(augs);
return augs;
}
if (fElementDepth == 0) {
// 1.1.1.1 An element declaration was stipulated by the processor
if (fRootElementDeclaration != null) {
fCurrentElemDecl = fRootElementDeclaration;
checkElementMatchesRootElementDecl(fCurrentElemDecl, element);
}
else if (fRootElementDeclQName != null) {
processRootElementDeclQName(fRootElementDeclQName, element);
}
// 1.2.1.1 A type definition was stipulated by the processor
else if (fRootTypeDefinition != null) {
fCurrentType = fRootTypeDefinition;
}
else if (fRootTypeQName != null) {
processRootTypeQName(fRootTypeQName);
}
}
// if there was no processor stipulated type
if (fCurrentType == null) {
// try again to get the element decl:
// case 1: find declaration for root element
// case 2: find declaration for element from another namespace
if (fCurrentElemDecl == null) {
// try to find schema grammar by different means..
SchemaGrammar sGrammar =
findSchemaGrammar(
XSDDescription.CONTEXT_ELEMENT,
element.uri,
null,
element,
attributes);
if (sGrammar != null) {
fCurrentElemDecl = sGrammar.getGlobalElementDecl(element.localpart);
}
}
if (fCurrentElemDecl != null) {
// then get the type
fCurrentType = fCurrentElemDecl.fType;
}
}
// check if we should be ignoring xsi:type on this element
if (fElementDepth == fIgnoreXSITypeDepth && fCurrentElemDecl == null) {
fIgnoreXSITypeDepth++;
}
// process xsi:type attribute information
String xsiType = null;
if (fElementDepth >= fIgnoreXSITypeDepth) {
xsiType = attributes.getValue(SchemaSymbols.URI_XSI, SchemaSymbols.XSI_TYPE);
}
// if no decl/type found for the current element
if (fCurrentType == null && xsiType == null) {
// if this is the validation root, report an error, because
// we can't find eith decl or type for this element
// REVISIT: should we report error, or warning?
if (fElementDepth == 0) {
// for dynamic validation, skip the whole content,
// because no grammar was found.
if (fDynamicValidation || fSchemaDynamicValidation) {
// no schema grammar was found, but it's either dynamic
// validation, or another kind of grammar was found (DTD,
// for example). The intended behavior here is to skip
// the whole document. To improve performance, we try to
// remove the validator from the pipeline, since it's not
// supposed to do anything.
if (fDocumentSource != null) {
fDocumentSource.setDocumentHandler(fDocumentHandler);
if (fDocumentHandler != null)
fDocumentHandler.setDocumentSource(fDocumentSource);
// indicate that the validator was removed.
fElementDepth = -2;
return augs;
}
fSkipValidationDepth = fElementDepth;
if (fAugPSVI)
augs = getEmptyAugs(augs);
return augs;
}
// We don't call reportSchemaError here, because the spec
// doesn't think it's invalid not to be able to find a
// declaration or type definition for an element. Xerces is
// reporting it as an error for historical reasons, but in
// PSVI, we shouldn't mark this element as invalid because
// of this. - SG
fXSIErrorReporter.fErrorReporter.reportError(
XSMessageFormatter.SCHEMA_DOMAIN,
"cvc-elt.1.a",
new Object[] { element.rawname },
XMLErrorReporter.SEVERITY_ERROR);
}
// if wildcard = strict, report error.
// needs to be called before fXSIErrorReporter.pushContext()
// so that the error belongs to the parent element.
else if (wildcard != null && wildcard.fProcessContents == XSWildcardDecl.PC_STRICT) {
// report error, because wilcard = strict
reportSchemaError("cvc-complex-type.2.4.c", new Object[] { element.rawname });
}
// no element decl or type found for this element.
// Allowed by the spec, we can choose to either laxly assess this
// element, or to skip it. Now we choose lax assessment.
fCurrentType = SchemaGrammar.fAnyType;
fStrictAssess = false;
fNFullValidationDepth = fElementDepth;
// any type has mixed content, so we don't need to append buffer
fAppendBuffer = false;
// push error reporter context: record the current position
// This has to happen after we process skip contents,
// otherwise push and pop won't be correctly paired.
fXSIErrorReporter.pushContext();
} else {
// push error reporter context: record the current position
// This has to happen after we process skip contents,
// otherwise push and pop won't be correctly paired.
fXSIErrorReporter.pushContext();
// get xsi:type
if (xsiType != null) {
XSTypeDefinition oldType = fCurrentType;
fCurrentType = getAndCheckXsiType(element, xsiType, attributes);
// If it fails, use the old type. Use anyType if ther is no old type.
if (fCurrentType == null) {
if (oldType == null)
fCurrentType = SchemaGrammar.fAnyType;
else
fCurrentType = oldType;
}
}
fNNoneValidationDepth = fElementDepth;
// if the element has a fixed value constraint, we need to append
if (fCurrentElemDecl != null
&& fCurrentElemDecl.getConstraintType() == XSConstants.VC_FIXED) {
fAppendBuffer = true;
}
// if the type is simple, we need to append
else if (fCurrentType.getTypeCategory() == XSTypeDefinition.SIMPLE_TYPE) {
fAppendBuffer = true;
} else {
// if the type is simple content complex type, we need to append
XSComplexTypeDecl ctype = (XSComplexTypeDecl) fCurrentType;
fAppendBuffer = (ctype.fContentType == XSComplexTypeDecl.CONTENTTYPE_SIMPLE);
}
}
// Element Locally Valid (Element)
// 2 Its {abstract} must be false.
if (fCurrentElemDecl != null && fCurrentElemDecl.getAbstract())
reportSchemaError("cvc-elt.2", new Object[] { element.rawname });
// make the current element validation root
if (fElementDepth == 0) {
fValidationRoot = element.rawname;
}
// update normalization flags
if (fNormalizeData) {
// reset values
fFirstChunk = true;
fTrailing = false;
fUnionType = false;
fWhiteSpace = -1;
}
// Element Locally Valid (Type)
// 2 Its {abstract} must be false.
if (fCurrentType.getTypeCategory() == XSTypeDefinition.COMPLEX_TYPE) {
XSComplexTypeDecl ctype = (XSComplexTypeDecl) fCurrentType;
if (ctype.getAbstract()) {
reportSchemaError("cvc-type.2", new Object[] { element.rawname });
}
if (fNormalizeData) {
// find out if the content type is simple and if variety is union
// to be able to do character normalization
if (ctype.fContentType == XSComplexTypeDecl.CONTENTTYPE_SIMPLE) {
if (ctype.fXSSimpleType.getVariety() == XSSimpleType.VARIETY_UNION) {
fUnionType = true;
} else {
try {
fWhiteSpace = ctype.fXSSimpleType.getWhitespace();
} catch (DatatypeException e) {
// do nothing
}
}
}
}
}
// normalization: simple type
else if (fNormalizeData) {
// if !union type
XSSimpleType dv = (XSSimpleType) fCurrentType;
if (dv.getVariety() == XSSimpleType.VARIETY_UNION) {
fUnionType = true;
} else {
try {
fWhiteSpace = dv.getWhitespace();
} catch (DatatypeException e) {
// do nothing
}
}
}
// then try to get the content model
fCurrentCM = null;
if (fCurrentType.getTypeCategory() == XSTypeDefinition.COMPLEX_TYPE) {
fCurrentCM = ((XSComplexTypeDecl) fCurrentType).getContentModel(fCMBuilder);
}
// and get the initial content model state
fCurrCMState = null;
if (fCurrentCM != null)
fCurrCMState = fCurrentCM.startContentModel();
// get information about xsi:nil
String xsiNil = attributes.getValue(SchemaSymbols.URI_XSI, SchemaSymbols.XSI_NIL);
// only deal with xsi:nil when there is an element declaration
if (xsiNil != null && fCurrentElemDecl != null)
fNil = getXsiNil(element, xsiNil);
// now validate everything related with the attributes
// first, get the attribute group
XSAttributeGroupDecl attrGrp = null;
if (fCurrentType.getTypeCategory() == XSTypeDefinition.COMPLEX_TYPE) {
XSComplexTypeDecl ctype = (XSComplexTypeDecl) fCurrentType;
attrGrp = ctype.getAttrGrp();
}
if (fIDCChecking) {
// activate identity constraints
fValueStoreCache.startElement();
fMatcherStack.pushContext();
//if (fCurrentElemDecl != null && fCurrentElemDecl.fIDCPos > 0 && !fIgnoreIDC) {
if (fCurrentElemDecl != null && fCurrentElemDecl.fIDCPos > 0) {
fIdConstraint = true;
// initialize when identity constrains are defined for the elem
fValueStoreCache.initValueStoresFor(fCurrentElemDecl, this);
}
}
processAttributes(element, attributes, attrGrp);
// add default attributes
if (attrGrp != null) {
addDefaultAttributes(element, attributes, attrGrp);
}
// call all active identity constraints
int count = fMatcherStack.getMatcherCount();
for (int i = 0; i < count; i++) {
XPathMatcher matcher = fMatcherStack.getMatcherAt(i);
matcher.startElement( element, attributes);
}
if (fAugPSVI) {
augs = getEmptyAugs(augs);
// PSVI: add validation context
fCurrentPSVI.fValidationContext = fValidationRoot;
// PSVI: add element declaration
fCurrentPSVI.fDeclaration = fCurrentElemDecl;
// PSVI: add element type
fCurrentPSVI.fTypeDecl = fCurrentType;
// PSVI: add notation attribute
fCurrentPSVI.fNotation = fNotation;
// PSVI: add nil
fCurrentPSVI.fNil = fNil;
}
return augs;
} // handleStartElement(QName,XMLAttributes,boolean)