xsdsimpletypetraverser.java

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/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 2001-2003 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 [e-mail].
 *
 * 5. Products derived from this software may not be called "Apache",
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 *
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * 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 com.sun.org.apache.xerces.internal.impl.xs.traversers;

import java.util.Vector;

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.XSSimpleType;
import com.sun.org.apache.xerces.internal.impl.dv.xs.SchemaDVFactoryImpl;
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.xs.XSConstants;
import com.sun.org.apache.xerces.internal.xs.XSObjectList;
import com.sun.org.apache.xerces.internal.xs.XSTypeDefinition;
import com.sun.org.apache.xerces.internal.impl.xs.util.XSObjectListImpl;
import com.sun.org.apache.xerces.internal.impl.xs.util.XInt;
import com.sun.org.apache.xerces.internal.util.DOMUtil;
import com.sun.org.apache.xerces.internal.xni.QName;
import org.w3c.dom.Element;

/**
 * The simple type definition schema component traverser.
 *
 * <simpleType
 *   final = (#all | (list | union | restriction))
 *   id = ID
 *   name = NCName
 *   {any attributes with non-schema namespace . . .}>
 *   Content: (annotation?, (restriction | list | union))
 * </simpleType>
 *
 * <restriction
 *   base = QName
 *   id = ID
 *   {any attributes with non-schema namespace . . .}>
 *   Content: (annotation?, (simpleType?, (minExclusive | minInclusive | maxExclusive | maxInclusive | totalDigits | fractionDigits | length | minLength | maxLength | enumeration | whiteSpace | pattern)*))
 * </restriction>
 *
 * <list
 *   id = ID
 *   itemType = QName
 *   {any attributes with non-schema namespace . . .}>
 *   Content: (annotation?, (simpleType?))
 * </list>
 *
 * <union
 *   id = ID
 *   memberTypes = List of QName
 *   {any attributes with non-schema namespace . . .}>
 *   Content: (annotation?, (simpleType*))
 * </union>
 *
 * @author Elena Litani, IBM
 * @author Neeraj Bajaj, Sun Microsystems, Inc.
 * @author Sandy Gao, IBM
 * 
 * @version $Id: XSDSimpleTypeTraverser.java,v 1.26 2003/11/11 20:15:00 sandygao Exp $
 */
class XSDSimpleTypeTraverser extends XSDAbstractTraverser {

    // the factory used to query/create simple types
    private final SchemaDVFactory schemaFactory = SchemaDVFactory.getInstance();

    // whether the type being parsed is a S4S built-in type.
    private boolean fIsBuiltIn = false;

    XSDSimpleTypeTraverser (XSDHandler handler,
                            XSAttributeChecker gAttrCheck) {
        super(handler, gAttrCheck);
        if (schemaFactory instanceof SchemaDVFactoryImpl) {
            ((SchemaDVFactoryImpl)schemaFactory).setDeclPool(handler.fDeclPool);
        }
    }

    //return qualified name of simpleType or empty string if error occured
    XSSimpleType traverseGlobal(Element elmNode,
                                XSDocumentInfo schemaDoc,
                                SchemaGrammar grammar) {

        // General Attribute Checking
        Object[] attrValues = fAttrChecker.checkAttributes(elmNode, true, schemaDoc);
        String nameAtt = (String)attrValues[XSAttributeChecker.ATTIDX_NAME];
        XSSimpleType type = traverseSimpleTypeDecl(elmNode, attrValues, schemaDoc, grammar);
        fAttrChecker.returnAttrArray(attrValues, schemaDoc);

        // if it's a global type without a name, return null
        if (nameAtt == null) {
            reportSchemaError("s4s-att-must-appear", new Object[]{SchemaSymbols.ELT_SIMPLETYPE, SchemaSymbols.ATT_NAME}, elmNode);
            type = null;
        }

        // don't add global components without name to the grammar
        if (type != null) {
            grammar.addGlobalTypeDecl(type);
        }

        return type;
    }

    XSSimpleType traverseLocal(Element elmNode,
                               XSDocumentInfo schemaDoc,
                               SchemaGrammar grammar) {

        // General Attribute Checking
        Object[] attrValues = fAttrChecker.checkAttributes(elmNode, false, schemaDoc);
        XSSimpleType type = traverseSimpleTypeDecl (elmNode, attrValues, schemaDoc, grammar);
        fAttrChecker.returnAttrArray(attrValues, schemaDoc);

        return type;
    }

    private XSSimpleType traverseSimpleTypeDecl(Element simpleTypeDecl,
                                                Object[] attrValues,
                                                XSDocumentInfo schemaDoc,
                                                SchemaGrammar grammar) {

        // get name and final values
        String name = (String)attrValues[XSAttributeChecker.ATTIDX_NAME];
        XInt finalAttr = (XInt)attrValues[XSAttributeChecker.ATTIDX_FINAL];
        int finalProperty = finalAttr == null ? schemaDoc.fFinalDefault : finalAttr.intValue();

        // annotation?,(list|restriction|union)
        Element child = DOMUtil.getFirstChildElement(simpleTypeDecl);
        XSAnnotationImpl [] annotations = null;
        if (child != null) {
            // traverse annotation if any
            if (DOMUtil.getLocalName(child).equals(SchemaSymbols.ELT_ANNOTATION)) {
                XSAnnotationImpl annotation = traverseAnnotationDecl(child, attrValues, false, schemaDoc);
                if (annotation != null)
                    annotations = new XSAnnotationImpl [] {annotation};
                child = DOMUtil.getNextSiblingElement(child);
            }
        }

        // (list|restriction|union)
        if (child == null) {
            reportSchemaError("s4s-elt-must-match.2", new Object[]{SchemaSymbols.ELT_SIMPLETYPE, "(annotation?, (restriction | list | union))"}, simpleTypeDecl);
            return errorType(name, schemaDoc.fTargetNamespace, XSConstants.DERIVATION_RESTRICTION);
        }

        // derivation type: restriction/list/union
        String varietyProperty = DOMUtil.getLocalName(child);
        short refType = XSConstants.DERIVATION_RESTRICTION;
        boolean restriction = false, list = false, union = false;
        if (varietyProperty.equals(SchemaSymbols.ELT_RESTRICTION)) {
            refType = XSConstants.DERIVATION_RESTRICTION;
            restriction = true;
        }
        else if (varietyProperty.equals(SchemaSymbols.ELT_LIST)) {
            refType = XSConstants.DERIVATION_LIST;
            list = true;
        }
        else if (varietyProperty.equals(SchemaSymbols.ELT_UNION)) {
            refType = XSConstants.DERIVATION_UNION;
            union = true;
        }
        else {
            reportSchemaError("s4s-elt-must-match.1", new Object[]{SchemaSymbols.ELT_SIMPLETYPE, "(annotation?, (restriction | list | union))", varietyProperty}, simpleTypeDecl);
            return errorType(name, schemaDoc.fTargetNamespace, XSConstants.DERIVATION_RESTRICTION);
        }

        // nothing should follow this element
        Element nextChild = DOMUtil.getNextSiblingElement(child);
        if (nextChild != null) {
            reportSchemaError("s4s-elt-must-match.1", new Object[]{SchemaSymbols.ELT_SIMPLETYPE, "(annotation?, (restriction | list | union))", DOMUtil.getLocalName(nextChild)}, nextChild);
        }
        
        // General Attribute Checking: get base/item/member types
        Object[] contentAttrs = fAttrChecker.checkAttributes(child, false, schemaDoc);
        QName baseTypeName = (QName)contentAttrs[restriction ?
                                                 XSAttributeChecker.ATTIDX_BASE :
                                                 XSAttributeChecker.ATTIDX_ITEMTYPE];
        Vector memberTypes = (Vector)contentAttrs[XSAttributeChecker.ATTIDX_MEMBERTYPES];

        //content = {annotation?,simpleType?...}
        Element content = DOMUtil.getFirstChildElement(child);

        //check content (annotation?, ...)
        if (content != null) {
            // traverse annotation if any
            if (DOMUtil.getLocalName(content).equals(SchemaSymbols.ELT_ANNOTATION)) {
                XSAnnotationImpl annotation = traverseAnnotationDecl(content, contentAttrs, false, schemaDoc);
                if(annotation != null ) {
                    if(annotations == null) 
                        annotations = new XSAnnotationImpl [] {annotation};
                    else {
                        XSAnnotationImpl [] tempArray = new XSAnnotationImpl[2];
                        tempArray[0] = annotations[0];
                        annotations = tempArray;
                        annotations[1] = annotation;
                    }
                }
                content = DOMUtil.getNextSiblingElement(content);
            }