QName.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.mappingsmodel.handles;

import org.eclipse.persistence.tools.workbench.mappingsmodel.schema.MWAttributeDeclaration;
import org.eclipse.persistence.tools.workbench.mappingsmodel.schema.MWComplexTypeDefinition;
import org.eclipse.persistence.tools.workbench.mappingsmodel.schema.MWElementDeclaration;
import org.eclipse.persistence.tools.workbench.mappingsmodel.schema.MWModelGroupDefinition;
import org.eclipse.persistence.tools.workbench.mappingsmodel.schema.MWNamedSchemaComponent;

import org.eclipse.persistence.mappings.converters.ObjectTypeConverter;
import org.eclipse.persistence.oxm.XMLDescriptor;
import org.eclipse.persistence.oxm.mappings.XMLDirectMapping;


/**
 * For now, this is a utility class for use
 * within the various schema component handles
 * by TopLink.
 */
public final class QName
{
    private String componentType;
        public final static String ATTRIBUTE_TYPE         = "attribute";
        public final static String ELEMENT_TYPE         = "element";
        public final static String COMPLEX_TYPE_TYPE     = "complex-type";
        public final static String GROUP_TYPE            = "group";

    private String namespaceURI;

    private String localName;


    // ********** static methods **********

    public static XMLDescriptor buildDescriptor() {
        XMLDescriptor descriptor = new XMLDescriptor();

        descriptor.setJavaClass(QName.class);

        XMLDirectMapping componentTypeMapping = new XMLDirectMapping();
        componentTypeMapping.setAttributeName("componentType");
        componentTypeMapping.setXPath("@component-type");

        ObjectTypeConverter componentTypeConverter = new ObjectTypeConverter();
        componentTypeConverter.addConversionValue(QName.ATTRIBUTE_TYPE, QName.ATTRIBUTE_TYPE);
        componentTypeConverter.addConversionValue(QName.ELEMENT_TYPE, QName.ELEMENT_TYPE);
        componentTypeConverter.addConversionValue(QName.COMPLEX_TYPE_TYPE, QName.COMPLEX_TYPE_TYPE);
        componentTypeConverter.addConversionValue(QName.GROUP_TYPE, QName.GROUP_TYPE);
        componentTypeMapping.setConverter(componentTypeConverter);

        descriptor.addMapping(componentTypeMapping);

        ((XMLDirectMapping)descriptor.addDirectMapping("namespaceURI", "@namespace-uri")).setNullValue("");
        descriptor.addDirectMapping("localName", "@local-name");

        return descriptor;
    }


    private QName() {
        super();
    }

    QName(MWNamedSchemaComponent namedSchemaComponent) {
        this();

        if (namedSchemaComponent instanceof MWAttributeDeclaration) {
            this.componentType = ATTRIBUTE_TYPE;
        }
        else if (namedSchemaComponent instanceof MWElementDeclaration) {
            this.componentType = ELEMENT_TYPE;
        }
        else if (namedSchemaComponent instanceof MWComplexTypeDefinition) {
            this.componentType = COMPLEX_TYPE_TYPE;
        }
        else if (namedSchemaComponent instanceof MWModelGroupDefinition) {
            this.componentType = GROUP_TYPE;
        }
        else {
            throw new IllegalArgumentException("Unsupported component type");
        }

        this.namespaceURI = namedSchemaComponent.getNamespaceUrl();
        this.localName = namedSchemaComponent.getName();
    }

    public String getComponentType() {
        return this.componentType;
    }

    public String getNamespaceURI() {
        return this.namespaceURI;
    }

    public String getLocalName() {
        return this.localName;
    }
}