xsdcomplextypetraverser.java

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/*
 * Copyright 2001-2005 The Apache Software Foundation.
 * 
 * Licensed 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 com.sun.org.apache.xerces.internal.impl.xs.traversers;

import com.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeFacetException;
import com.sun.org.apache.xerces.internal.impl.dv.SchemaDVFactory;
import com.sun.org.apache.xerces.internal.impl.dv.XSFacets;
import com.sun.org.apache.xerces.internal.impl.dv.XSSimpleType;
import com.sun.org.apache.xerces.internal.impl.xs.SchemaGrammar;
import com.sun.org.apache.xerces.internal.impl.xs.SchemaSymbols;
import com.sun.org.apache.xerces.internal.impl.xs.XSAnnotationImpl;
import com.sun.org.apache.xerces.internal.impl.xs.XSAttributeGroupDecl;
import com.sun.org.apache.xerces.internal.impl.xs.XSAttributeUseImpl;
import com.sun.org.apache.xerces.internal.impl.xs.XSComplexTypeDecl;
import com.sun.org.apache.xerces.internal.impl.xs.XSConstraints;
import com.sun.org.apache.xerces.internal.impl.xs.XSModelGroupImpl;
import com.sun.org.apache.xerces.internal.impl.xs.XSParticleDecl;
import com.sun.org.apache.xerces.internal.impl.xs.XSWildcardDecl;
import com.sun.org.apache.xerces.internal.impl.xs.util.XInt;
import com.sun.org.apache.xerces.internal.impl.xs.util.XSObjectListImpl;
import com.sun.org.apache.xerces.internal.util.DOMUtil;
import com.sun.org.apache.xerces.internal.xni.QName;
import com.sun.org.apache.xerces.internal.xs.XSAttributeUse;
import com.sun.org.apache.xerces.internal.xs.XSConstants;
import com.sun.org.apache.xerces.internal.xs.XSObjectList;
import com.sun.org.apache.xerces.internal.xs.XSTypeDefinition;
import org.w3c.dom.Element;

/**
 * A complex type definition schema component traverser.
 *
 * <complexType
 *   abstract = boolean : false
 *   block = (#all | List of (extension | restriction))
 *   final = (#all | List of (extension | restriction))
 *   id = ID
 *   mixed = boolean : false
 *   name = NCName
 *   {any attributes with non-schema namespace . . .}>
 *   Content: (annotation?, (simpleContent | complexContent |
 *            ((group | all | choice | sequence)?,
 *            ((attribute | attributeGroup)*, anyAttribute?))))
 * </complexType>
 * 
 * @xerces.internal  
 * 
 * @version $Id: XSDComplexTypeTraverser.java,v 1.2.6.1 2005/09/08 14:22:48 sunithareddy Exp $
 */

class  XSDComplexTypeTraverser extends XSDAbstractParticleTraverser {
    
    // size of stack to hold globals:
    private final static int GLOBAL_NUM = 11;
    
    // globals for building XSComplexTypeDecls
    private String fName = null;
    private String fTargetNamespace = null;
    private short fDerivedBy = XSConstants.DERIVATION_RESTRICTION;
    private short fFinal = XSConstants.DERIVATION_NONE;
    private short fBlock = XSConstants.DERIVATION_NONE;
    private short fContentType = XSComplexTypeDecl.CONTENTTYPE_EMPTY;
    private XSTypeDefinition fBaseType = null;
    private XSAttributeGroupDecl fAttrGrp = null;
    private XSSimpleType fXSSimpleType = null;
    private XSParticleDecl fParticle = null;
    private boolean fIsAbstract = false;
    private XSComplexTypeDecl fComplexTypeDecl = null;
    private XSAnnotationImpl [] fAnnotations = null;
    
    private XSParticleDecl fEmptyParticle = null;
    
    // our own little stack to retain state when getGlobalDecls is called:
    private Object [] fGlobalStore = null;
    private int fGlobalStorePos = 0;
    
    XSDComplexTypeTraverser (XSDHandler handler,
            XSAttributeChecker gAttrCheck) {
        super(handler, gAttrCheck);
    }
    
    
    private static final boolean DEBUG=false;
    
    private SchemaDVFactory schemaFactory = SchemaDVFactory.getInstance();
    
    private class ComplexTypeRecoverableError extends Exception {
        
        private static final long serialVersionUID = 3762247556666831417L;
        
        Object[] errorSubstText=null;
        Element  errorElem = null;
        ComplexTypeRecoverableError() {
            super();
        }
        ComplexTypeRecoverableError(String msgKey, Object[] args, Element e) {
            super(msgKey);
            errorSubstText=args;
            errorElem = e;
        }
        
    }
    
    /**
     * Traverse local complexType declarations
     *
     * @param Element
     * @param XSDocumentInfo
     * @param SchemaGrammar
     * @return XSComplexTypeDecl
     */
    XSComplexTypeDecl traverseLocal(Element complexTypeNode,
            XSDocumentInfo schemaDoc,
            SchemaGrammar grammar) {
        
        
        Object[] attrValues = fAttrChecker.checkAttributes(complexTypeNode, false,
                schemaDoc);
        String complexTypeName = genAnonTypeName(complexTypeNode);
        contentBackup();
        XSComplexTypeDecl type = traverseComplexTypeDecl (complexTypeNode,
                complexTypeName, attrValues, schemaDoc, grammar);
        contentRestore();
        // need to add the type to the grammar for later constraint checking
        grammar.addComplexTypeDecl(type, fSchemaHandler.element2Locator(complexTypeNode));
        type.setIsAnonymous();
        fAttrChecker.returnAttrArray(attrValues, schemaDoc);
        
        return type;
    }
    
    /**
     * Traverse global complexType declarations
     *
     * @param Element
     * @param XSDocumentInfo
     * @param SchemaGrammar
     * @return XSComplexTypeDecXSComplexTypeDecl
     */
    XSComplexTypeDecl traverseGlobal (Element complexTypeNode,
            XSDocumentInfo schemaDoc,
            SchemaGrammar grammar) {
        
        Object[] attrValues = fAttrChecker.checkAttributes(complexTypeNode, true,
                schemaDoc);
        String complexTypeName = (String)  attrValues[XSAttributeChecker.ATTIDX_NAME];
        contentBackup();
        XSComplexTypeDecl type = traverseComplexTypeDecl (complexTypeNode,
                complexTypeName, attrValues, schemaDoc, grammar);
        contentRestore();
        if (complexTypeName == null) {
            reportSchemaError("s4s-att-must-appear", new Object[]{SchemaSymbols.ELT_COMPLEXTYPE, SchemaSymbols.ATT_NAME}, complexTypeNode);
        } else {
            grammar.addGlobalTypeDecl(type);
        }
        // need to add the type to the grammar for later constraint checking
        grammar.addComplexTypeDecl(type, fSchemaHandler.element2Locator(complexTypeNode));
        fAttrChecker.returnAttrArray(attrValues, schemaDoc);
        
        return type;
    }
    
    
    private XSComplexTypeDecl traverseComplexTypeDecl(Element complexTypeDecl,
            String complexTypeName,
            Object[] attrValues,
            XSDocumentInfo schemaDoc,
            SchemaGrammar grammar) {
        
        fComplexTypeDecl = new XSComplexTypeDecl();
        fAttrGrp = new XSAttributeGroupDecl();
        Boolean abstractAtt  = (Boolean) attrValues[XSAttributeChecker.ATTIDX_ABSTRACT];
        XInt    blockAtt     = (XInt)    attrValues[XSAttributeChecker.ATTIDX_BLOCK];
        Boolean mixedAtt     = (Boolean) attrValues[XSAttributeChecker.ATTIDX_MIXED];
        XInt    finalAtt     = (XInt)    attrValues[XSAttributeChecker.ATTIDX_FINAL];
        
        fName = complexTypeName;
        fComplexTypeDecl.setName(fName);
        fTargetNamespace = schemaDoc.fTargetNamespace;
        
        fBlock = blockAtt == null ? schemaDoc.fBlockDefault : blockAtt.shortValue();
        fFinal = finalAtt == null ? schemaDoc.fFinalDefault : finalAtt.shortValue();
        //discard valid Block/Final 'Default' values that are invalid for Block/Final
        fBlock &= (XSConstants.DERIVATION_EXTENSION | XSConstants.DERIVATION_RESTRICTION);
        fFinal &= (XSConstants.DERIVATION_EXTENSION | XSConstants.DERIVATION_RESTRICTION);
        
        fIsAbstract = (abstractAtt != null && abstractAtt.booleanValue());
        
        Element child = null;
        
        try {
            // ---------------------------------------------------------------
            // First, handle any ANNOTATION declaration and get next child
            // ---------------------------------------------------------------
            child = DOMUtil.getFirstChildElement(complexTypeDecl);
            if(child != null) {
                if (DOMUtil.getLocalName(child).equals(SchemaSymbols.ELT_ANNOTATION)) {
                    addAnnotation(traverseAnnotationDecl(child, attrValues, false, schemaDoc));
                    child = DOMUtil.getNextSiblingElement(child);
                }
                else {
                    String text = DOMUtil.getSyntheticAnnotation(complexTypeDecl);
                    if (text != null) {
                        addAnnotation(traverseSyntheticAnnotation(complexTypeDecl, text, attrValues, false, schemaDoc));
                    }
                }
                if (child !=null && DOMUtil.getLocalName(child).equals(SchemaSymbols.ELT_ANNOTATION)) {
                    throw new ComplexTypeRecoverableError("s4s-elt-invalid-content.1",
                            new Object[]{fName,SchemaSymbols.ELT_ANNOTATION},
                            child);
                }
            }
            else {
                String text = DOMUtil.getSyntheticAnnotation(complexTypeDecl);
                if (text != null) {
                    addAnnotation(traverseSyntheticAnnotation(complexTypeDecl, text, attrValues, false, schemaDoc));
                }
            }
            // ---------------------------------------------------------------
            // Process the content of the complex type definition
            // ---------------------------------------------------------------
            if (child==null) {
                //
                // EMPTY complexType with complexContent
                //
                
                // set the base to the anyType
                fBaseType = SchemaGrammar.fAnyType;
                processComplexContent(child, mixedAtt.booleanValue(), false,
                        schemaDoc, grammar);
            }
            else if (DOMUtil.getLocalName(child).equals
                    (SchemaSymbols.ELT_SIMPLECONTENT)) {
                //
                // SIMPLE CONTENT
                //
                traverseSimpleContent(child, schemaDoc, grammar);
                Element elemTmp = DOMUtil.getNextSiblingElement(child);
                if (elemTmp != null) {
                    String siblingName = DOMUtil.getLocalName(elemTmp);
                    throw new ComplexTypeRecoverableError("s4s-elt-invalid-content.1",
                            new Object[]{fName,siblingName},
                            elemTmp);
                }
            }
            else if (DOMUtil.getLocalName(child).equals
                    (SchemaSymbols.ELT_COMPLEXCONTENT)) {
                traverseComplexContent(child, mixedAtt.booleanValue(),
                        schemaDoc, grammar);
                Element elemTmp = DOMUtil.getNextSiblingElement(child);
                if (elemTmp != null) {
                    String siblingName = DOMUtil.getLocalName(elemTmp);
                    throw new ComplexTypeRecoverableError("s4s-elt-invalid-content.1",
                            new Object[]{fName,siblingName},
                            elemTmp);
                }
            }
            else {
                //
                // We must have ....
                // GROUP, ALL, SEQUENCE or CHOICE, followed by optional attributes
                // Note that it's possible that only attributes are specified.
                //
                
                // set the base to the anyType
                fBaseType = SchemaGrammar.fAnyType;
                processComplexContent(child, mixedAtt.booleanValue(), false,
                        schemaDoc, grammar);
            }
            
        }
        catch (ComplexTypeRecoverableError e) {
            handleComplexTypeError(e.getMessage(), e.errorSubstText,
                    e.errorElem);
        }
        
        if (DEBUG) {
            System.out.println(fName);
        }
        fComplexTypeDecl.setValues(fName, fTargetNamespace, fBaseType,
                fDerivedBy, fFinal, fBlock, fContentType, fIsAbstract,
                fAttrGrp, fXSSimpleType, fParticle, new XSObjectListImpl(fAnnotations, 
                        fAnnotations == null? 0 : fAnnotations.length));
        return fComplexTypeDecl;
    }
    
    
    private void traverseSimpleContent(Element simpleContentElement,
            XSDocumentInfo schemaDoc,
            SchemaGrammar grammar)
    throws ComplexTypeRecoverableError {