/* 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.ActivitiListener;
import org.activiti.bpmn.model.BaseElement;
import org.activiti.bpmn.model.EventListener;
import org.activiti.bpmn.model.HasExecutionListeners;
import org.activiti.bpmn.model.ImplementationType;
import org.activiti.bpmn.model.Process;
import org.activiti.bpmn.model.UserTask;
import org.apache.commons.lang3.StringUtils;
public class ActivitiListenerExport implements BpmnXMLConstants {
public static boolean writeListeners(BaseElement element, boolean didWriteExtensionStartElement, XMLStreamWriter xtw) throws Exception {
if (element instanceof HasExecutionListeners) {
didWriteExtensionStartElement = writeListeners(ELEMENT_EXECUTION_LISTENER, ((HasExecutionListeners) element).getExecutionListeners(), didWriteExtensionStartElement, xtw);
}
// In case of a usertaks, also add task-listeners
if (element instanceof UserTask) {
didWriteExtensionStartElement = writeListeners(ELEMENT_TASK_LISTENER, ((UserTask) element).getTaskListeners(), didWriteExtensionStartElement, xtw);
}
// In case of a process-element, write the event-listeners
if (element instanceof Process) {
didWriteExtensionStartElement = writeEventListeners(((Process) element).getEventListeners(), didWriteExtensionStartElement, xtw);
}
return didWriteExtensionStartElement;
}
protected static boolean writeEventListeners(List<EventListener> eventListeners,
boolean didWriteExtensionStartElement, XMLStreamWriter xtw) throws Exception {
if(eventListeners != null && !eventListeners.isEmpty()) {
for(EventListener eventListener : eventListeners) {
if (!didWriteExtensionStartElement) {
xtw.writeStartElement(ELEMENT_EXTENSIONS);
didWriteExtensionStartElement = true;
}
xtw.writeStartElement(ACTIVITI_EXTENSIONS_PREFIX, ELEMENT_EVENT_LISTENER, ACTIVITI_EXTENSIONS_NAMESPACE);
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_EVENTS, eventListener.getEvents(), xtw);
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_ENTITY_TYPE, eventListener.getEntityType(), xtw);
if (ImplementationType.IMPLEMENTATION_TYPE_CLASS.equals(eventListener.getImplementationType())) {
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_CLASS, eventListener.getImplementation(), xtw);
} else if (ImplementationType.IMPLEMENTATION_TYPE_DELEGATEEXPRESSION.equals(eventListener.getImplementationType())) {
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_DELEGATEEXPRESSION, eventListener.getImplementation(), xtw);
} else if (ImplementationType.IMPLEMENTATION_TYPE_THROW_SIGNAL_EVENT.equals(eventListener.getImplementationType())) {
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_THROW_SIGNAL_EVENT_NAME, eventListener.getImplementation(), xtw);
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_THROW_EVENT_TYPE, ATTRIBUTE_LISTENER_THROW_EVENT_TYPE_SIGNAL, xtw);
} else if (ImplementationType.IMPLEMENTATION_TYPE_THROW_GLOBAL_SIGNAL_EVENT.equals(eventListener.getImplementationType())) {
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_THROW_SIGNAL_EVENT_NAME, eventListener.getImplementation(), xtw);
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_THROW_EVENT_TYPE, ATTRIBUTE_LISTENER_THROW_EVENT_TYPE_GLOBAL_SIGNAL, xtw);
} else if (ImplementationType.IMPLEMENTATION_TYPE_THROW_MESSAGE_EVENT.equals(eventListener.getImplementationType())) {
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_THROW_MESSAGE_EVENT_NAME, eventListener.getImplementation(), xtw);
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_THROW_EVENT_TYPE, ATTRIBUTE_LISTENER_THROW_EVENT_TYPE_MESSAGE, xtw);
} else if (ImplementationType.IMPLEMENTATION_TYPE_THROW_ERROR_EVENT.equals(eventListener.getImplementationType())) {
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_THROW_ERROR_EVENT_CODE, eventListener.getImplementation(), xtw);
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_THROW_EVENT_TYPE, ATTRIBUTE_LISTENER_THROW_EVENT_TYPE_ERROR, xtw);
}
xtw.writeEndElement();
}
}
return didWriteExtensionStartElement;
}
private static boolean writeListeners(String xmlElementName, List<ActivitiListener> listenerList, boolean didWriteExtensionStartElement, XMLStreamWriter xtw) throws Exception {
if (listenerList != null) {
for (ActivitiListener listener : listenerList) {
if (StringUtils.isNotEmpty(listener.getEvent())) {
if (!didWriteExtensionStartElement) {
xtw.writeStartElement(ELEMENT_EXTENSIONS);
didWriteExtensionStartElement = true;
}
xtw.writeStartElement(ACTIVITI_EXTENSIONS_PREFIX, xmlElementName, ACTIVITI_EXTENSIONS_NAMESPACE);
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_EVENT, listener.getEvent(), xtw);
if (ImplementationType.IMPLEMENTATION_TYPE_CLASS.equals(listener.getImplementationType())) {
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_CLASS, listener.getImplementation(), xtw);
} else if (ImplementationType.IMPLEMENTATION_TYPE_EXPRESSION.equals(listener.getImplementationType())) {
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_EXPRESSION, listener.getImplementation(), xtw);
} else if (ImplementationType.IMPLEMENTATION_TYPE_DELEGATEEXPRESSION.equals(listener.getImplementationType())) {
BpmnXMLUtil.writeDefaultAttribute(ATTRIBUTE_LISTENER_DELEGATEEXPRESSION, listener.getImplementation(), xtw);
}
FieldExtensionExport.writeFieldExtensions(listener.getFieldExtensions(), true, xtw);
xtw.writeEndElement();
}
}
}
return didWriteExtensionStartElement;
}
}