de.erdesignerng.model.serializer.xml20.XMLIndexSerializer.java Source code

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Here is the source code for de.erdesignerng.model.serializer.xml20.XMLIndexSerializer.java

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/**
 * Mogwai ERDesigner. Copyright (C) 2002 The Mogwai Project.
 *
 * 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., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307, USA.
 */
package de.erdesignerng.model.serializer.xml20;

import de.erdesignerng.model.Index;
import de.erdesignerng.model.IndexExpression;
import de.erdesignerng.model.IndexType;
import de.erdesignerng.model.Table;
import org.apache.commons.lang.StringUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;

public class XMLIndexSerializer extends de.erdesignerng.model.serializer.xml10.XMLIndexSerializer {

    @Override
    public void serialize(Index aIndex, Document aDocument, Element aRootElement) {
        Element theIndexElement = addElement(aDocument, aRootElement, INDEX);

        theIndexElement.setAttribute(INDEXTYPE, aIndex.getIndexType().toString());

        serializeProperties(aDocument, theIndexElement, aIndex);

        // Attribute
        for (IndexExpression theExpression : aIndex.getExpressions()) {
            Element theAttributeElement = addElement(aDocument, theIndexElement, INDEXATTRIBUTE);
            theAttributeElement.setAttribute(ID, theExpression.getSystemId());
            if (!StringUtils.isEmpty(theExpression.getExpression())) {
                theAttributeElement.setAttribute(ATTRIBUTEEXPRESSION, theExpression.getExpression());
            } else {
                theAttributeElement.setAttribute(ATTRIBUTEREFID, theExpression.getAttributeRef().getSystemId());
            }
        }

    }

    @Override
    public void deserialize(Table aTable, Element aElement) {
        // Parse the indexes
        NodeList theIndexes = aElement.getElementsByTagName(INDEX);
        for (int j = 0; j < theIndexes.getLength(); j++) {

            Element theIndexElement = (Element) theIndexes.item(j);
            Index theIndex = new Index();
            theIndex.setOwner(aTable);
            deserializeProperties(theIndexElement, theIndex);

            theIndex.setIndexType(IndexType.fromString(theIndexElement.getAttribute(INDEXTYPE)));

            NodeList theAttributes = theIndexElement.getElementsByTagName(INDEXATTRIBUTE);
            for (int k = 0; k < theAttributes.getLength(); k++) {

                Element theAttributeElement = (Element) theAttributes.item(k);

                IndexExpression theExpression = new IndexExpression();
                theExpression.setSystemId(theAttributeElement.getAttribute(ID));
                String theAttributeRefId = theAttributeElement.getAttribute(ATTRIBUTEREFID);
                if (!StringUtils.isEmpty(theAttributeRefId)) {
                    theExpression.setAttributeRef(aTable.getAttributes().findBySystemId(theAttributeRefId));
                } else {
                    theExpression.setExpression(theAttributeElement.getAttribute(ATTRIBUTEEXPRESSION));
                }
                theIndex.getExpressions().add(theExpression);
            }

            aTable.getIndexes().add(theIndex);

        }
    }
}