xsdabstractparticletraverser.java

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/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 2001-2004 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
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 * 5. Products derived from this software may not be called "Apache",
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 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * 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 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.XSParticleDecl;
import com.sun.org.apache.xerces.internal.impl.xs.XSModelGroupImpl;
import com.sun.org.apache.xerces.internal.impl.xs.XSAnnotationImpl;
import com.sun.org.apache.xerces.internal.util.DOMUtil;
import com.sun.org.apache.xerces.internal.impl.xs.util.XInt;
import com.sun.org.apache.xerces.internal.xs.XSObject;
import org.w3c.dom.Element;

/**
 * @author Elena Litani, IBM
 * @author Sandy Gao, IBM
 * @version $Id: XSDAbstractParticleTraverser.java,v 1.16 2004/02/04 18:48:15 mrglavas Exp $
 */
abstract class XSDAbstractParticleTraverser extends XSDAbstractTraverser {

    XSDAbstractParticleTraverser (XSDHandler handler,
                                  XSAttributeChecker gAttrCheck) {
        super(handler, gAttrCheck);
    }

    /**
     *
     * Traverse the "All" declaration
     *
     * <all
     *   id = ID
     *   maxOccurs = 1 : 1
     *   minOccurs = (0 | 1) : 1>
     *   Content: (annotation? , element*)
     * </all>
     **/
    XSParticleDecl traverseAll(Element allDecl,
                               XSDocumentInfo schemaDoc,
                               SchemaGrammar grammar,
                               int allContextFlags,
                               XSObject parent) {

        // General Attribute Checking

        Object[] attrValues = fAttrChecker.checkAttributes(allDecl, false, schemaDoc);

        Element child = DOMUtil.getFirstChildElement(allDecl);

        XSAnnotationImpl annotation = null;
        if (child !=null) {
            // traverse Annotation
            if (DOMUtil.getLocalName(child).equals(SchemaSymbols.ELT_ANNOTATION)) {
                annotation = traverseAnnotationDecl(child, attrValues, false, schemaDoc);
                child = DOMUtil.getNextSiblingElement(child);
            }
        }
        String childName = null;
        XSParticleDecl particle;
        fPArray.pushContext();

        for (; child != null; child = DOMUtil.getNextSiblingElement(child)) {

            particle = null;
            childName = DOMUtil.getLocalName(child);

            // Only elements are allowed in <all>
            if (childName.equals(SchemaSymbols.ELT_ELEMENT)) {
                particle = fSchemaHandler.fElementTraverser.traverseLocal(child, schemaDoc, grammar, PROCESSING_ALL_EL, parent);
            }
            else {
                Object[] args = {"all", "(annotation?, element*)", DOMUtil.getLocalName(child)};
                reportSchemaError("s4s-elt-must-match.1", args, child);
            }

            if (particle != null)
                fPArray.addParticle(particle);
        }

        particle = null;
        XInt minAtt = (XInt)attrValues[XSAttributeChecker.ATTIDX_MINOCCURS];
        XInt maxAtt = (XInt)attrValues[XSAttributeChecker.ATTIDX_MAXOCCURS];
        Long defaultVals = (Long)attrValues[XSAttributeChecker.ATTIDX_FROMDEFAULT];
            
        XSModelGroupImpl group = new XSModelGroupImpl();
        group.fCompositor = XSModelGroupImpl.MODELGROUP_ALL;
        group.fParticleCount = fPArray.getParticleCount();
        group.fParticles = fPArray.popContext();
        group.fAnnotation = annotation;
        particle = new XSParticleDecl();
        particle.fType = XSParticleDecl.PARTICLE_MODELGROUP;
        particle.fMinOccurs = minAtt.intValue();
        particle.fMaxOccurs = maxAtt.intValue();
        particle.fValue = group;

        particle = checkOccurrences(particle,
                                    SchemaSymbols.ELT_ALL,
                                    (Element)allDecl.getParentNode(),
                                    allContextFlags,
                                    defaultVals.longValue());
        fAttrChecker.returnAttrArray(attrValues, schemaDoc);

        return particle;
    }

    /**
     * Traverse the Sequence declaration
     *
     * <sequence
     *   id = ID
     *   maxOccurs = string
     *   minOccurs = nonNegativeInteger>
     *   Content: (annotation? , (element | group | choice | sequence | any)*)
     * </sequence>
     *
     * @param seqDecl
     * @param schemaDoc
     * @param grammar
     * @return
     */
    XSParticleDecl traverseSequence(Element seqDecl,
                                    XSDocumentInfo schemaDoc,
                                    SchemaGrammar grammar,
                                    int allContextFlags,
                                    XSObject parent) {

        return traverseSeqChoice(seqDecl, schemaDoc, grammar, allContextFlags, false, parent);
    }

    /**
     * Traverse the Choice declaration
     *
     * <choice
     *   id = ID
     *   maxOccurs = string
     *   minOccurs = nonNegativeInteger>
     *   Content: (annotation? , (element | group | choice | sequence | any)*)
     * </choice>
     *
     * @param choiceDecl
     * @param schemaDoc
     * @param grammar
     * @return
     */