org.activiti.bpmn.converter.AssociationXMLConverter.java Source code

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Here is the source code for org.activiti.bpmn.converter.AssociationXMLConverter.java

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/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.bpmn.converter;

import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;

import org.activiti.bpmn.converter.util.BpmnXMLUtil;
import org.activiti.bpmn.model.Association;
import org.activiti.bpmn.model.BaseElement;
import org.apache.commons.lang.StringUtils;

/**
 * @author Tijs Rademakers
 */
public class AssociationXMLConverter extends BaseBpmnXMLConverter {

    public static String getXMLType() {
        return ELEMENT_ASSOCIATION;
    }

    public static Class<? extends BaseElement> getBpmnElementType() {
        return Association.class;
    }

    @Override
    protected String getXMLElementName() {
        return ELEMENT_ASSOCIATION;
    }

    @Override
    protected BaseElement convertXMLToElement(XMLStreamReader xtr) throws Exception {
        Association association = new Association();
        BpmnXMLUtil.addXMLLocation(association, xtr);
        association.setSourceRef(xtr.getAttributeValue(null, ATTRIBUTE_FLOW_SOURCE_REF));
        association.setTargetRef(xtr.getAttributeValue(null, ATTRIBUTE_FLOW_TARGET_REF));
        association.setId(xtr.getAttributeValue(null, ATTRIBUTE_ID));

        if (StringUtils.isEmpty(association.getSourceRef())) {
            model.addProblem("association element missing attribute 'sourceRef'", xtr);
        }
        if (StringUtils.isEmpty(association.getTargetRef())) {
            model.addProblem("association element missing attribute 'targetRef'", xtr);
        }

        return association;
    }

    @Override
    protected void writeAdditionalAttributes(BaseElement element, XMLStreamWriter xtw) throws Exception {
        Association association = (Association) element;
        writeDefaultAttribute(ATTRIBUTE_FLOW_SOURCE_REF, association.getSourceRef(), xtw);
        writeDefaultAttribute(ATTRIBUTE_FLOW_TARGET_REF, association.getTargetRef(), xtw);
    }

    @Override
    protected void writeExtensionChildElements(BaseElement element, XMLStreamWriter xtw) throws Exception {
    }

    @Override
    protected void writeAdditionalChildElements(BaseElement element, XMLStreamWriter xtw) throws Exception {
    }
}