/* 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.parser;
import javax.xml.stream.XMLStreamReader;
import org.activiti.bpmn.constants.BpmnXMLConstants;
import org.activiti.bpmn.converter.util.BpmnXMLUtil;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.bpmn.model.Interface;
import org.activiti.bpmn.model.Operation;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author Tijs Rademakers
*/
public class InterfaceParser implements BpmnXMLConstants {
protected static final Logger LOGGER = LoggerFactory.getLogger(InterfaceParser.class.getName());
public void parse(XMLStreamReader xtr, BpmnModel model) throws Exception {
Interface interfaceObject = new Interface();
BpmnXMLUtil.addXMLLocation(interfaceObject, xtr);
interfaceObject.setId(model.getTargetNamespace() + ":" + xtr.getAttributeValue(null, ATTRIBUTE_ID));
interfaceObject.setName(xtr.getAttributeValue(null, ATTRIBUTE_NAME));
interfaceObject.setImplementationRef(parseMessageRef(xtr.getAttributeValue(null, ATTRIBUTE_IMPLEMENTATION_REF), model));
boolean readyWithInterface = false;
Operation operation = null;
try {
while (readyWithInterface == false && xtr.hasNext()) {
xtr.next();
if (xtr.isStartElement() && ELEMENT_OPERATION.equals(xtr.getLocalName())) {
operation = new Operation();
BpmnXMLUtil.addXMLLocation(operation, xtr);
operation.setId(model.getTargetNamespace() + ":" + xtr.getAttributeValue(null, ATTRIBUTE_ID));
operation.setName(xtr.getAttributeValue(null, ATTRIBUTE_NAME));
operation.setImplementationRef(parseMessageRef(xtr.getAttributeValue(null, ATTRIBUTE_IMPLEMENTATION_REF), model));
} else if (xtr.isStartElement() && ELEMENT_IN_MESSAGE.equals(xtr.getLocalName())) {
String inMessageRef = xtr.getElementText();
if (operation != null && StringUtils.isNotEmpty(inMessageRef)) {
operation.setInMessageRef(parseMessageRef(inMessageRef.trim(), model));
}
} else if (xtr.isStartElement() && ELEMENT_OUT_MESSAGE.equals(xtr.getLocalName())) {
String outMessageRef = xtr.getElementText();
if (operation != null && StringUtils.isNotEmpty(outMessageRef)) {
operation.setOutMessageRef(parseMessageRef(outMessageRef.trim(), model));
}
} else if (xtr.isEndElement() && ELEMENT_OPERATION.equalsIgnoreCase(xtr.getLocalName())) {
if (operation != null && StringUtils.isNotEmpty(operation.getImplementationRef())) {
interfaceObject.getOperations().add(operation);
}
} else if (xtr.isEndElement() && ELEMENT_INTERFACE.equals(xtr.getLocalName())) {
readyWithInterface = true;
}
}
} catch (Exception e) {
LOGGER.warn("Error parsing interface child elements", e);
}
model.getInterfaces().add(interfaceObject);
}
protected String parseMessageRef(String messageRef, BpmnModel model) {
String result = null;
if (StringUtils.isNotEmpty(messageRef)) {
int indexOfP = messageRef.indexOf(':');
if (indexOfP != -1) {
String prefix = messageRef.substring(0, indexOfP);
String resolvedNamespace = model.getNamespace(prefix);
result = resolvedNamespace + ":" + messageRef.substring(indexOfP + 1);
} else {
result = model.getTargetNamespace() + ":" + messageRef;
}
}
return result;
}
}