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* ====================================================================
*
* 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) 2001, International
* Business Machines, Inc., http://www.apache.org. For more
* information on the Apache Software Foundation, please see
*
* Content: (annotation?, (all | choice | sequence))
*
*
* @author Rahul Srivastava, Sun Microsystems Inc.
* @author Elena Litani, IBM
* @author Lisa Martin, IBM
* @version $Id: XSDGroupTraverser.java,v 1.15 2002/10/09 14:10:04 sandygao Exp $
*/
class XSDGroupTraverser extends XSDAbstractParticleTraverser {
XSDGroupTraverser (XSDHandler handler,
XSAttributeChecker gAttrCheck) {
super(handler, gAttrCheck);
}
XSParticleDecl traverseLocal(Element elmNode,
XSDocumentInfo schemaDoc,
SchemaGrammar grammar) {
// General Attribute Checking for elmNode declared locally
Object[] attrValues = fAttrChecker.checkAttributes(elmNode, false,
schemaDoc);
QName refAttr = (QName) attrValues[XSAttributeChecker.ATTIDX_REF];
XInt minAttr = (XInt) attrValues[XSAttributeChecker.ATTIDX_MINOCCURS];
XInt maxAttr = (XInt) attrValues[XSAttributeChecker.ATTIDX_MAXOCCURS];
XSGroupDecl group = null;
// ref should be here.
if (refAttr == null) {
reportSchemaError("s4s-att-must-appear", new Object[]{"group (local)", "ref"}, elmNode);
} else {
// get global decl
// index is a particle index.
group = (XSGroupDecl)fSchemaHandler.getGlobalDecl(schemaDoc, XSDHandler.GROUP_TYPE, refAttr, elmNode);
}
// no children other than "annotation?" are allowed
Element child = DOMUtil.getFirstChildElement(elmNode);
if (child != null && DOMUtil.getLocalName(child).equals(SchemaSymbols.ELT_ANNOTATION)) {
traverseAnnotationDecl(child, attrValues, false, schemaDoc);
child = DOMUtil.getNextSiblingElement(child);
}
if (child != null) {
reportSchemaError("s4s-elt-must-match", new Object[]{"group (local)", "(annotation?)"}, elmNode);
}
int minOccurs = minAttr.intValue();
int maxOccurs = maxAttr.intValue();
XSParticleDecl particle = null;
// not empty group, not empty particle
if (group != null && group.fModelGroup != null &&
!(minOccurs == 0 && maxOccurs == 0)) {
// create a particle to contain this model group
if (fSchemaHandler.fDeclPool != null) {
particle = fSchemaHandler.fDeclPool.getParticleDecl();
} else {
particle = new XSParticleDecl();
}
particle.fType = XSParticleDecl.PARTICLE_MODELGROUP;
particle.fValue = group.fModelGroup;
particle.fMinOccurs = minOccurs;
particle.fMaxOccurs = maxOccurs;
}
fAttrChecker.returnAttrArray(attrValues, schemaDoc);
return particle;
} // traverseLocal
XSGroupDecl traverseGlobal(Element elmNode,
XSDocumentInfo schemaDoc,
SchemaGrammar grammar) {
// General Attribute Checking for elmNode declared globally
Object[] attrValues = fAttrChecker.checkAttributes(elmNode, true,
schemaDoc);
String strNameAttr = (String) attrValues[XSAttributeChecker.ATTIDX_NAME];
// must have a name
if (strNameAttr == null) {
reportSchemaError("s4s-att-must-appear", new Object[]{"group (global)", "name"}, elmNode);
}
XSGroupDecl group = null;
XSParticleDecl particle = null;
// must have at least one child
Element l_elmChild = DOMUtil.getFirstChildElement(elmNode);
if (l_elmChild == null) {
reportSchemaError("s4s-elt-must-match",
new Object[]{"group (global)", "(annotation?, (all | choice | sequence))"},
elmNode);
} else {
String childName = l_elmChild.getLocalName();
if (childName.equals(SchemaSymbols.ELT_ANNOTATION)) {
traverseAnnotationDecl(l_elmChild, attrValues, true, schemaDoc);
l_elmChild = DOMUtil.getNextSiblingElement(l_elmChild);
if (l_elmChild != null)
childName = l_elmChild.getLocalName();
}
if (l_elmChild == null) {
reportSchemaError("s4s-elt-must-match",
new Object[]{"group (global)", "(annotation?, (all | choice | sequence))"},
elmNode);
} else if (childName.equals(SchemaSymbols.ELT_ALL)) {
particle = traverseAll(l_elmChild, schemaDoc, grammar, CHILD_OF_GROUP, null);
} else if (childName.equals(SchemaSymbols.ELT_CHOICE)) {
particle = traverseChoice(l_elmChild, schemaDoc, grammar, CHILD_OF_GROUP, null);
} else if (childName.equals(SchemaSymbols.ELT_SEQUENCE)) {
particle = traverseSequence(l_elmChild, schemaDoc, grammar, CHILD_OF_GROUP, null);
} else {
reportSchemaError("s4s-elt-must-match",
new Object[]{"group (global)", "(annotation?, (all | choice | sequence))"},
l_elmChild);
}
if (l_elmChild != null &&
DOMUtil.getNextSiblingElement(l_elmChild) != null) {
reportSchemaError("s4s-elt-must-match",
new Object[]{"group (global)", "(annotation?, (all | choice | sequence))"},
DOMUtil.getNextSiblingElement(l_elmChild));
}
// add global group declaration to the grammar
if (strNameAttr != null) {
group = new XSGroupDecl();
group.fName = strNameAttr;
group.fTargetNamespace = schemaDoc.fTargetNamespace;
if (particle != null)
group.fModelGroup = (XSModelGroupImpl)particle.fValue;
grammar.addGlobalGroupDecl(group);
}
}
if(group != null) {
// store groups redefined by restriction in the grammar so
// that we can get at them at full-schema-checking time.
Object redefinedGrp = fSchemaHandler.getGrpOrAttrGrpRedefinedByRestriction(XSDHandler.GROUP_TYPE,
new QName(XMLSymbols.EMPTY_STRING, strNameAttr, strNameAttr, schemaDoc.fTargetNamespace),
schemaDoc, elmNode);
if(redefinedGrp != null) {
// store in grammar
grammar.addRedefinedGroupDecl(group, (XSGroupDecl)redefinedGrp,
fSchemaHandler.element2Locator(elmNode));
}
}
fAttrChecker.returnAttrArray(attrValues, schemaDoc);
return group;
} // traverseGlobal
}