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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.xerces.impl.xs.traversers;
import org.apache.xerces.impl.xs.SchemaGrammar;
import org.apache.xerces.impl.xs.SchemaSymbols;
import org.apache.xerces.impl.xs.XSAnnotationImpl;
import org.apache.xerces.impl.xs.XSConstraints;
import org.apache.xerces.impl.xs.XSGroupDecl;
import org.apache.xerces.impl.xs.XSModelGroupImpl;
import org.apache.xerces.impl.xs.XSParticleDecl;
import org.apache.xerces.impl.xs.util.XInt;
import org.apache.xerces.impl.xs.util.XSObjectListImpl;
import org.apache.xerces.util.DOMUtil;
import org.apache.xerces.util.XMLSymbols;
import org.apache.xerces.xni.QName;
import org.apache.xerces.xs.XSObjectList;
import org.w3c.dom.Element;
/**
* The model group schema component traverser.
*
*
* Content: (annotation?, (all | choice | sequence))
*
*
* @xerces.internal
*
* @author Rahul Srivastava, Sun Microsystems Inc.
* @author Elena Litani, IBM
* @author Lisa Martin, IBM
* @version $Id: XSDGroupTraverser.java 819653 2009-09-28 17:29:56Z knoaman $
*/
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);
}
XSAnnotationImpl annotation = null;
// no children other than "annotation?" are allowed
Element child = DOMUtil.getFirstChildElement(elmNode);
if (child != null && DOMUtil.getLocalName(child).equals(SchemaSymbols.ELT_ANNOTATION)) {
annotation = traverseAnnotationDecl(child, attrValues, false, schemaDoc);
child = DOMUtil.getNextSiblingElement(child);
}
else {
String text = DOMUtil.getSyntheticAnnotation(elmNode);
if (text != null) {
annotation = traverseSyntheticAnnotation(elmNode, text, attrValues, false, schemaDoc);
}
}
if (child != null) {
reportSchemaError("s4s-elt-must-match.1", new Object[]{"group (local)", "(annotation?)", DOMUtil.getLocalName(elmNode)}, 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;
if (group.fModelGroup.fCompositor == XSModelGroupImpl.MODELGROUP_ALL) {
Long defaultVals = (Long)attrValues[XSAttributeChecker.ATTIDX_FROMDEFAULT];
particle = checkOccurrences(particle, SchemaSymbols.ELT_GROUP,
(Element)elmNode.getParentNode(), GROUP_REF_WITH_ALL,
defaultVals.longValue());
}
if (refAttr != null) {
XSObjectList annotations;
if (annotation != null) {
annotations = new XSObjectListImpl();
((XSObjectListImpl) annotations).addXSObject(annotation);
} else {
annotations = XSObjectListImpl.EMPTY_LIST;
}
particle.fAnnotations = annotations;
} else {
particle.fAnnotations = group.fAnnotations;
}
}
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);
}
// Create the group defi up-front, so it can be passed
// to the traversal methods
XSGroupDecl group = new XSGroupDecl();
XSParticleDecl particle = null;
// must have at least one child
Element l_elmChild = DOMUtil.getFirstChildElement(elmNode);
XSAnnotationImpl annotation = null;
if (l_elmChild == null) {
reportSchemaError("s4s-elt-must-match.2",
new Object[]{"group (global)", "(annotation?, (all | choice | sequence))"},
elmNode);
} else {
String childName = l_elmChild.getLocalName();
if (childName.equals(SchemaSymbols.ELT_ANNOTATION)) {
annotation = traverseAnnotationDecl(l_elmChild, attrValues, true, schemaDoc);
l_elmChild = DOMUtil.getNextSiblingElement(l_elmChild);
if (l_elmChild != null)
childName = l_elmChild.getLocalName();
}
else {
String text = DOMUtil.getSyntheticAnnotation(elmNode);
if (text != null) {
annotation = traverseSyntheticAnnotation(elmNode, text, attrValues, false, schemaDoc);
}
}
if (l_elmChild == null) {
reportSchemaError("s4s-elt-must-match.2",
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, group);
} else if (childName.equals(SchemaSymbols.ELT_CHOICE)) {
particle = traverseChoice(l_elmChild, schemaDoc, grammar, CHILD_OF_GROUP, group);
} else if (childName.equals(SchemaSymbols.ELT_SEQUENCE)) {
particle = traverseSequence(l_elmChild, schemaDoc, grammar, CHILD_OF_GROUP, group);
} else {
reportSchemaError("s4s-elt-must-match.1",
new Object[]{"group (global)", "(annotation?, (all | choice | sequence))", DOMUtil.getLocalName(l_elmChild)},
l_elmChild);
}
if (l_elmChild != null &&
DOMUtil.getNextSiblingElement(l_elmChild) != null) {
reportSchemaError("s4s-elt-must-match.1",
new Object[]{"group (global)", "(annotation?, (all | choice | sequence))",
DOMUtil.getLocalName(DOMUtil.getNextSiblingElement(l_elmChild))},
DOMUtil.getNextSiblingElement(l_elmChild));
}
}
// add global group declaration to the grammar
if (strNameAttr != null) {
group.fName = strNameAttr;
group.fTargetNamespace = schemaDoc.fTargetNamespace;
if (particle == null) {
particle = XSConstraints.getEmptySequence();
}
group.fModelGroup = (XSModelGroupImpl)particle.fValue;
XSObjectList annotations;
if (annotation != null) {
annotations = new XSObjectListImpl();
((XSObjectListImpl) annotations).addXSObject(annotation);
} else {
annotations = XSObjectListImpl.EMPTY_LIST;
}
group.fAnnotations = annotations;
// Add group declaration to grammar
if (grammar.getGlobalGroupDecl(group.fName) == null) {
grammar.addGlobalGroupDecl(group);
}
// also add it to extended map
final String loc = fSchemaHandler.schemaDocument2SystemId(schemaDoc);
final XSGroupDecl group2 = grammar.getGlobalGroupDecl(group.fName, loc);
if (group2 == null) {
grammar.addGlobalGroupDecl(group, loc);
}
// handle duplicates
if (fSchemaHandler.fTolerateDuplicates) {
if (group2 != null) {
group = group2;
}
fSchemaHandler.addGlobalGroupDecl(group);
}
}
else {
// name attribute is not there, don't return this group.
group = null;
}
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
}
