org.activiti.bpmn.converter.export.FieldExtensionExport.java Source code

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Here is the source code for org.activiti.bpmn.converter.export.FieldExtensionExport.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.export;

import java.util.List;

import javax.xml.stream.XMLStreamWriter;

import org.activiti.bpmn.constants.BpmnXMLConstants;
import org.activiti.bpmn.converter.util.BpmnXMLUtil;
import org.activiti.bpmn.model.FieldExtension;
import org.apache.commons.lang3.StringUtils;

public class FieldExtensionExport implements BpmnXMLConstants {

    public static boolean writeFieldExtensions(List<FieldExtension> fieldExtensionList,
            boolean didWriteExtensionStartElement, XMLStreamWriter xtw) throws Exception {

        for (FieldExtension fieldExtension : fieldExtensionList) {

            if (StringUtils.isNotEmpty(fieldExtension.getFieldName())) {

                if (StringUtils.isNotEmpty(fieldExtension.getStringValue())
                        || StringUtils.isNotEmpty(fieldExtension.getExpression())) {

                    if (didWriteExtensionStartElement == false) {
                        xtw.writeStartElement(ELEMENT_EXTENSIONS);
                        didWriteExtensionStartElement = true;
                    }

                    xtw.writeStartElement(ACTIVITI_EXTENSIONS_PREFIX, ELEMENT_FIELD, ACTIVITI_EXTENSIONS_NAMESPACE);
                    BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_FIELD_NAME, fieldExtension.getFieldName(), xtw);

                    if (StringUtils.isNotEmpty(fieldExtension.getStringValue())) {
                        xtw.writeStartElement(ACTIVITI_EXTENSIONS_PREFIX, ELEMENT_FIELD_STRING,
                                ACTIVITI_EXTENSIONS_NAMESPACE);
                        xtw.writeCData(fieldExtension.getStringValue());
                    } else {
                        xtw.writeStartElement(ACTIVITI_EXTENSIONS_PREFIX, ATTRIBUTE_FIELD_EXPRESSION,
                                ACTIVITI_EXTENSIONS_NAMESPACE);
                        xtw.writeCharacters(fieldExtension.getExpression());
                    }
                    xtw.writeEndElement();
                    xtw.writeEndElement();
                }
            }
        }
        return didWriteExtensionStartElement;
    }
}