/* 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 java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.activiti.bpmn.converter.child.BaseChildElementParser;
import org.activiti.bpmn.model.BaseElement;
import org.activiti.bpmn.model.UserTask;
import org.apache.commons.lang.StringUtils;
/**
* @author Tijs Rademakers
*/
public class UserTaskXMLConverter extends BaseBpmnXMLConverter {
public UserTaskXMLConverter() {
HumanPerformerParser humanPerformerParser = new HumanPerformerParser();
childElementParsers.put(humanPerformerParser.getElementName(), humanPerformerParser);
PotentialOwnerParser potentialOwnerParser = new PotentialOwnerParser();
childElementParsers.put(potentialOwnerParser.getElementName(), potentialOwnerParser);
}
public static String getXMLType() {
return ELEMENT_TASK_USER;
}
public static Class<? extends BaseElement> getBpmnElementType() {
return UserTask.class;
}
@Override
protected String getXMLElementName() {
return ELEMENT_TASK_USER;
}
@Override
protected BaseElement convertXMLToElement(XMLStreamReader xtr) throws Exception {
UserTask userTask = new UserTask();
userTask.setDueDate(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_USER_DUEDATE));
userTask.setFormKey(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_FORM_FORMKEY));
userTask.setAssignee(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_USER_ASSIGNEE));
if (StringUtils.isNotEmpty(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_USER_CANDIDATEUSERS))) {
String expression = xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_USER_CANDIDATEUSERS);
userTask.getCandidateUsers().addAll(parseDelimitedList(expression));
}
if (StringUtils.isNotEmpty(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_USER_CANDIDATEGROUPS))) {
String expression = xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_USER_CANDIDATEGROUPS);
userTask.getCandidateGroups().addAll(parseDelimitedList(expression));
}
if (StringUtils.isNotEmpty(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_USER_PRIORITY))) {
Integer priorityValue = null;
try {
priorityValue = Integer.valueOf(xtr.getAttributeValue(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_TASK_USER_PRIORITY));
} catch (Exception e) {
}
userTask.setPriority(priorityValue);
}
parseChildElements(getXMLElementName(), userTask, xtr);
return userTask;
}
@Override
protected void writeAdditionalAttributes(BaseElement element, XMLStreamWriter xtw) throws Exception {
UserTask userTask = (UserTask) element;
writeQualifiedAttribute(ATTRIBUTE_TASK_USER_ASSIGNEE, userTask.getAssignee(), xtw);
writeQualifiedAttribute(ATTRIBUTE_TASK_USER_CANDIDATEUSERS, convertToDelimitedString(userTask.getCandidateUsers()), xtw);
writeQualifiedAttribute(ATTRIBUTE_TASK_USER_CANDIDATEGROUPS, convertToDelimitedString(userTask.getCandidateGroups()), xtw);
writeQualifiedAttribute(ATTRIBUTE_TASK_USER_DUEDATE, userTask.getDueDate(), xtw);
writeQualifiedAttribute(ATTRIBUTE_FORM_FORMKEY, userTask.getFormKey(), xtw);
if (userTask.getPriority() != null) {
writeQualifiedAttribute(ATTRIBUTE_TASK_USER_PRIORITY, userTask.getPriority().toString(), xtw);
}
}
@Override
protected void writeAdditionalChildElements(BaseElement element, XMLStreamWriter xtw) throws Exception {
UserTask userTask = (UserTask) element;
writeFormProperties(userTask, xtw);
}
public class HumanPerformerParser extends BaseChildElementParser {
public String getElementName() {
return "humanPerformer";
}
public void parseChildElement(XMLStreamReader xtr, BaseElement parentElement) throws Exception {
String resourceElement = XMLStreamReaderUtil.moveDown(xtr);
if (StringUtils.isNotEmpty(resourceElement) && "resourceAssignmentExpression".equals(resourceElement)) {
String expression = XMLStreamReaderUtil.moveDown(xtr);
if (StringUtils.isNotEmpty(expression) && "formalExpression".equals(expression)) {
((UserTask) parentElement).setAssignee(xtr.getElementText());
}
}
}
}
public class PotentialOwnerParser extends BaseChildElementParser {
public String getElementName() {
return "potentialOwner";
}
public void parseChildElement(XMLStreamReader xtr, BaseElement parentElement) throws Exception {
String resourceElement = XMLStreamReaderUtil.moveDown(xtr);
if (StringUtils.isNotEmpty(resourceElement) && "resourceAssignmentExpression".equals(resourceElement)) {
String expression = XMLStreamReaderUtil.moveDown(xtr);
if (StringUtils.isNotEmpty(expression) && "formalExpression".equals(expression)) {
List<String> assignmentList = new ArrayList<String>();
String assignmentText = xtr.getElementText();
if (assignmentText.contains(",")) {
String[] assignmentArray = assignmentText.split(",");
assignmentList = Arrays.asList(assignmentArray);
} else {
assignmentList.add(assignmentText);
}
for (String assignmentValue : assignmentList) {
if (assignmentValue == null)
continue;
assignmentValue = assignmentValue.trim();
if (assignmentValue.length() == 0)
continue;
if (assignmentValue.trim().startsWith("user(")) {
((UserTask) parentElement).getCandidateUsers().add(assignmentValue);
} else {
((UserTask) parentElement).getCandidateGroups().add(assignmentValue);
}
}
}
}
}
}
}