/* 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.export.FieldExtensionExport;
import org.activiti.bpmn.converter.util.BpmnXMLUtil;
import org.activiti.bpmn.model.BaseElement;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.bpmn.model.CustomProperty;
import org.activiti.bpmn.model.ImplementationType;
import org.activiti.bpmn.model.ServiceTask;
import org.apache.commons.lang.StringUtils;
/**
* @author Tijs Rademakers
*/
public class ServiceTaskXMLConverter extends BaseBpmnXMLConverter {
public static String getXMLType() {
return ELEMENT_TASK_SERVICE;
}
public static Class<? extends BaseElement> getBpmnElementType() {
return ServiceTask.class;
}
@Override
protected String getXMLElementName() {
return ELEMENT_TASK_SERVICE;
}
@Override
protected BaseElement convertXMLToElement(XMLStreamReader xtr) throws Exception {
ServiceTask serviceTask = new ServiceTask();
BpmnXMLUtil.addXMLLocation(serviceTask, xtr);
if (StringUtils.isNotEmpty(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_CLASS))) {
serviceTask.setImplementationType(ImplementationType.IMPLEMENTATION_TYPE_CLASS);
serviceTask.setImplementation(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_CLASS));
} else if (StringUtils.isNotEmpty(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_EXPRESSION))) {
serviceTask.setImplementationType(ImplementationType.IMPLEMENTATION_TYPE_EXPRESSION);
serviceTask.setImplementation(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_EXPRESSION));
} else if (StringUtils.isNotEmpty(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_DELEGATEEXPRESSION))) {
serviceTask.setImplementationType(ImplementationType.IMPLEMENTATION_TYPE_DELEGATEEXPRESSION);
serviceTask.setImplementation(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_DELEGATEEXPRESSION));
} else if ("##WebService".equals(xtr.getAttributeValue(null, ATTRIBUTE_TASK_IMPLEMENTATION))) {
serviceTask.setImplementationType(ImplementationType.IMPLEMENTATION_TYPE_WEBSERVICE);
serviceTask.setOperationRef(parseOperationRef(xtr.getAttributeValue(null, ATTRIBUTE_TASK_OPERATION_REF), model));
}
serviceTask.setResultVariableName(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_RESULTVARIABLE));
if (StringUtils.isEmpty(serviceTask.getResultVariableName())) {
serviceTask.setResultVariableName(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, "resultVariable"));
}
if (StringUtils.isNotEmpty(serviceTask.getResultVariableName()) && (ImplementationType.IMPLEMENTATION_TYPE_CLASS.equals(serviceTask.getImplementationType()) ||
ImplementationType.IMPLEMENTATION_TYPE_DELEGATEEXPRESSION.equals(serviceTask.getImplementationType()))) {
model.addProblem("'resultVariableName' not supported for service tasks using 'class' or 'delegateExpression", xtr);
}
serviceTask.setType(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TYPE));
serviceTask.setExtensionId(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_SERVICE_EXTENSIONID));
parseChildElements(getXMLElementName(), serviceTask, xtr);
return serviceTask;
}
@Override
protected void writeAdditionalAttributes(BaseElement element, XMLStreamWriter xtw) throws Exception {
ServiceTask serviceTask = (ServiceTask) element;
if (ImplementationType.IMPLEMENTATION_TYPE_CLASS.equals(serviceTask.getImplementationType())) {
writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_CLASS, serviceTask.getImplementation(), xtw);
} else if (ImplementationType.IMPLEMENTATION_TYPE_EXPRESSION.equals(serviceTask.getImplementationType())) {
writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_EXPRESSION, serviceTask.getImplementation(), xtw);
} else if (ImplementationType.IMPLEMENTATION_TYPE_DELEGATEEXPRESSION.equals(serviceTask.getImplementationType())) {
writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_DELEGATEEXPRESSION, serviceTask.getImplementation(), xtw);
}
if (StringUtils.isNotEmpty(serviceTask.getResultVariableName())) {
writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_RESULTVARIABLE, serviceTask.getResultVariableName(), xtw);
}
if (StringUtils.isNotEmpty(serviceTask.getType())) {
writeQualifiedAttribute(ATTRIBUTE_TYPE, serviceTask.getType(), xtw);
}
if (StringUtils.isNotEmpty(serviceTask.getExtensionId())) {
writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_EXTENSIONID, serviceTask.getExtensionId(), xtw);
}
}
@Override
protected void writeExtensionChildElements(BaseElement element, XMLStreamWriter xtw) throws Exception {
ServiceTask serviceTask = (ServiceTask) element;
if (serviceTask.getCustomProperties().size() > 0) {
for (CustomProperty customProperty : serviceTask.getCustomProperties()) {
if (StringUtils.isEmpty(customProperty.getSimpleValue())) {
continue;
}
if (didWriteExtensionStartElement == false) {
xtw.writeStartElement(ELEMENT_EXTENSIONS);
didWriteExtensionStartElement = true;
}
xtw.writeStartElement(ACTIVITI_EXTENSIONS_PREFIX, ELEMENT_FIELD, ACTIVITI_EXTENSIONS_NAMESPACE);
xtw.writeAttribute(ATTRIBUTE_FIELD_NAME, customProperty.getName());
if ((customProperty.getSimpleValue().contains("${") || customProperty.getSimpleValue().contains("#{")) &&
customProperty.getSimpleValue().contains("}")) {
xtw.writeStartElement(ACTIVITI_EXTENSIONS_PREFIX, ATTRIBUTE_FIELD_EXPRESSION, ACTIVITI_EXTENSIONS_NAMESPACE);
} else {
xtw.writeStartElement(ACTIVITI_EXTENSIONS_PREFIX, ELEMENT_FIELD_STRING, ACTIVITI_EXTENSIONS_NAMESPACE);
}
xtw.writeCharacters(customProperty.getSimpleValue());
xtw.writeEndElement();
xtw.writeEndElement();
}
} else {
didWriteExtensionStartElement = FieldExtensionExport.writeFieldExtensions(serviceTask.getFieldExtensions(), didWriteExtensionStartElement, xtw);
}
}
@Override
protected void writeAdditionalChildElements(BaseElement element, XMLStreamWriter xtw) throws Exception {
}
protected String parseOperationRef(String operationRef, BpmnModel model) {
String result = null;
if (StringUtils.isNotEmpty(operationRef)) {
int indexOfP = operationRef.indexOf(':');
if (indexOfP != -1) {
String prefix = operationRef.substring(0, indexOfP);
String resolvedNamespace = model.getNamespace(prefix);
result = resolvedNamespace + ":" + operationRef.substring(indexOfP + 1);
} else {
result = model.getTargetNamespace() + ":" + operationRef;
}
}
return result;
}
}