/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2001, 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",
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*
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* 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) 2001, 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.traversers;
import org.apache.xerces.impl.XMLErrorReporter;
import org.apache.xerces.impl.xs.SchemaGrammar;
import org.apache.xerces.impl.xs.SchemaSymbols;
import org.apache.xerces.impl.xs.XSParticleDecl;
import org.apache.xerces.impl.xs.XSGroupDecl;
import org.apache.xerces.impl.xs.XSMessageFormatter;
import org.apache.xerces.util.DOMUtil;
import org.apache.xerces.impl.xs.util.XInt;
import org.apache.xerces.xni.QName;
import org.w3c.dom.Element;
/**
* The model group schema component traverser.
*
* <group
* name = NCName>
* Content: (annotation?, (all | choice | sequence))
* </group>
*
* @author Rahul Srivastava, Sun Microsystems Inc.
* @author Elena Litani, IBM
* @author Lisa Martin, IBM
* @version $Id: XSDGroupTraverser.java,v 1.4 2002/01/29 01:15:16 lehors 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"});
} else {
// get global decl
// index is a particle index.
group = (XSGroupDecl)fSchemaHandler.getGlobalDecl(schemaDoc, XSDHandler.GROUP_TYPE, refAttr);
}
// no children are allowed
if (DOMUtil.getFirstChildElement(elmNode) != null) {
reportSchemaError("s4s-elt-must-match", new Object[]{"group (local)", "(annotation?)"});
}
int minOccurs = minAttr.intValue();
int maxOccurs = maxAttr.intValue();
XSParticleDecl particle = null;
if (group != null) {
// empty particle
if (minOccurs == 0 && maxOccurs == 0) {
} else if (minOccurs == 1 && maxOccurs == 1) {
particle = group.fParticle;
}
else if (!( minOccurs == 1 && maxOccurs == 1)) {
// if minOccurs==maxOccurs==1 we don't need to create new particle
// create new particle in the grammar if minOccurs<maxOccurs
particle = new XSParticleDecl();
particle.fType = group.fParticle.fType;
particle.fValue = group.fParticle;
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"});
}
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))"});
} 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))"});
} else if (childName.equals(SchemaSymbols.ELT_ALL)) {
particle = traverseAll(l_elmChild, schemaDoc, grammar, CHILD_OF_GROUP);
} else if (childName.equals(SchemaSymbols.ELT_CHOICE)) {
particle = traverseChoice(l_elmChild, schemaDoc, grammar, CHILD_OF_GROUP);
} else if (childName.equals(SchemaSymbols.ELT_SEQUENCE)) {
particle = traverseSequence(l_elmChild, schemaDoc, grammar, CHILD_OF_GROUP);
} else {
Object[] args = new Object [] { "group", childName};
fErrorReporter.reportError(XSMessageFormatter.SCHEMA_DOMAIN,
"GroupContentRestricted",
args,
XMLErrorReporter.SEVERITY_ERROR);
}
if (l_elmChild != null &&
DOMUtil.getNextSiblingElement(l_elmChild) != null) {
Object[] args = new Object [] { "group", childName};
fErrorReporter.reportError(XSMessageFormatter.SCHEMA_DOMAIN,
"GroupContentRestricted",
args,
XMLErrorReporter.SEVERITY_ERROR);
}
// add global group declaration to the grammar
if (particle != null && strNameAttr != null) {
group = new XSGroupDecl();
group.fName = strNameAttr;
group.fTargetNamespace = schemaDoc.fTargetNamespace;
group.fParticle = particle;
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(fSchemaHandler.EMPTY_STRING, strNameAttr, strNameAttr, schemaDoc.fTargetNamespace),
schemaDoc);
if(redefinedGrp != null) {
// store in grammar
grammar.addRedefinedGroupDecl(group, (XSGroupDecl)redefinedGrp);
}
}
fAttrChecker.returnAttrArray(attrValues, schemaDoc);
return group;
} // traverseGlobal
}