Application: gvSIG desktop » gvSIG data provider for GPE

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.xmlschema.prov.kxml.model;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Collection;

import java.util.Iterator;

import java.util.List;

import org.gvsig.xmlpull.lib.api.stream.IQName;

import org.gvsig.xmlpull.lib.api.stream.IXmlStreamReader;

import org.gvsig.xmlschema.lib.api.som.IXSComplexContent;

import org.gvsig.xmlschema.lib.api.som.IXSElement;

import org.gvsig.xmlschema.lib.api.som.IXSElementDeclaration;

import org.gvsig.xmlschema.lib.api.som.IXSExtension;

import org.gvsig.xmlschema.lib.api.som.IXSGroup;

import org.gvsig.xmlschema.lib.api.som.IXSRestriction;

import org.gvsig.xmlschema.lib.api.som.IXSSchema;

import org.gvsig.xmlschema.lib.api.som.IXSSimpleContent;

import org.gvsig.xmlschema.lib.api.som.IXSTypeDefinition;

import org.gvsig.xmlschema.lib.api.som.IXSContentType;

import org.gvsig.xmlschema.lib.api.som.IXSComplexTypeDefinition;

import org.gvsig.xmlschema.lib.api.utils.SchemaTags;

/**

 * @author gvSIG Team

 * @version $Id$

 *

 */

public class XSExtension extends AbstractXSComponent implements IXSExtension{

    private IXSGroup group = null;

    private String baseType = null;

    private boolean isExtended = false;

    public XSExtension(XSSchema schema, IXmlStreamReader xmlStreamReader) throws IOException {

        super(schema);       

        this.schema = schema;

        parse(xmlStreamReader);

    }

    //Comprueba que las etiquetas extension se abren y se cierran

    private void parse(IXmlStreamReader xmlStreamReader) throws IOException

    {   

        int currentTag;

        boolean end = false;

        //require(KXmlParser.START_TAG, null, SchemaTags.EXTENSION);

        for (int i=0 ; i<xmlStreamReader.getAttributeCount() ; i++){

            String attName = xmlStreamReader.getAttributeName(i).getLocalPart();

            String attValue = xmlStreamReader.getAttributeValue(i);

            if (SchemaTags.BASE.equals(attName)){

                setBaseType(attValue);              

            }

        }

        currentTag = xmlStreamReader.next();        

        while (!end) 

        {

            switch(currentTag)

            {

            case IXmlStreamReader.START_ELEMENT:

                if (SchemaTags.SEQUENCE.equals(xmlStreamReader.getName().getLocalPart())){                    

                    group = new XSSequence(schema, xmlStreamReader); 

                }   

                break;

            case IXmlStreamReader.END_ELEMENT:

                if (SchemaTags.EXTENSION.equals(xmlStreamReader.getName().getLocalPart())){

                    end = true;

                }

                break;

            case IXmlStreamReader.CHARACTERS:                   

                break;

            }

            if (!end){

                currentTag = xmlStreamReader.next();

            }           

        }      

    }

    public short getNodeType() {

        // TODO Auto-generated method stub

        return 0;

    }

    public String getNodeValue() {

        // TODO Auto-generated method stub

        return null;

    }

    /**

     * @param baseType the baseType to set

     */

    private void setBaseType(String baseType) {

        this.baseType = baseType;

    }

    public IXSGroup getGroup() {

        if (!isExtended){

            //Add the types from the base type

            if (baseType != null){

                IXSTypeDefinition typeDefinition = schema.getTypeByName(null, baseType);

                if (typeDefinition != null){

                    if (typeDefinition instanceof IXSComplexTypeDefinition){

                        IXSComplexTypeDefinition complexTypeDefinition = (IXSComplexTypeDefinition)typeDefinition;

                        addGroup(((IXSComplexTypeDefinition)typeDefinition).getGroup());

                        IXSContentType contentType = complexTypeDefinition.getContentType();

                        if (contentType instanceof IXSSimpleContent){

                        }else if (contentType instanceof IXSComplexContent){                         

                            IXSRestriction restriction = contentType.getRestriction();

                            if (restriction != null){

                                addGroup(restriction.getGroup());

                            }

                            IXSExtension extension = contentType.getExtension();

                            if (extension != null){

                                addGroup(extension.getGroup());

                            }

                        }else if (contentType instanceof IXSGroup){

                            addGroup((IXSGroup)contentType);

                        }       

                    }

                }

            }

            isExtended = true;

        }

        return group;

    }

    private void addGroup(IXSGroup group){

        if (group != null){

            Iterator it = group.getItems().iterator();

            while (it.hasNext()){

                Object item = it.next();

                this.group.addChildElement((XSElement)item);                        

            }

        }

    }

}