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Problem with generate process diagram

natejh

Hi all,
   I want to generate a process diagram.
   So I use the activiti-modeler to generate a simple process defination xml file.
   It only include a start component, a end component and a sendTask
   Then I deploy it,but it runs error.

Attribute 'operation' is not allowed to appear in element 'sendTask'. |     com/workflow/process/EmailTest.bpmn20.xml | line 21 | column 90
One of the attributes 'type' or 'operation' is mandatory on sendTask.
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jbarrez

I've created a Jira for it, because I suspect a bug: http://jira.codehaus.org/browse/ACT-503

natejh

I've created a Jira for it, because I suspect a bug: http://jira.codehaus.org/browse/ACT-503

Thanks jbarrez!

I checked the source code,and found the issue code which in
org.activiti.engine.impl.bpmn.parser.BpmnParse.parseSendTask

<br>&nbsp; public void parseSendTask(Element sendTaskElement, ScopeImpl scope) {<br>&nbsp;&nbsp;&nbsp; ActivityImpl activity = parseAndCreateActivityOnScopeElement(sendTaskElement, scope);<br><br>&nbsp;&nbsp;&nbsp; System.out.println(BpmnParser.ACTIVITI_BPMN_EXTENSIONS_NS);<br>&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp; // for e-mail<br>&nbsp;&nbsp;&nbsp; String type = sendTaskElement.attributeNS(BpmnParser.ACTIVITI_BPMN_EXTENSIONS_NS, "type");<br>//&nbsp; String type = "mail";<br>&nbsp;&nbsp;&nbsp; // for web service<br>&nbsp;&nbsp;&nbsp; String implementation = sendTaskElement.attribute("implementation");<br>&nbsp;&nbsp;&nbsp; String operationRef = this.resolveName(sendTaskElement.attribute("operationRef"));<br><br>&nbsp;&nbsp;&nbsp; // for e-mail<br>&nbsp;&nbsp;&nbsp; if (type != null) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (type.equalsIgnoreCase("mail")) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; parseEmailServiceTask(activity, sendTaskElement, parseFieldDeclarations(sendTaskElement));<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } else {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; addError("Invalid usage of type attribute: '" + type + "'", sendTaskElement);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp; // for web service<br>&nbsp;&nbsp;&nbsp; } else if (implementation != null && operationRef != null && implementation.equalsIgnoreCase("##WebService")) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!this.operations.containsKey(operationRef)) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; addError(operationRef + " does not exist" , sendTaskElement);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } else {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Operation operation = this.operations.get(operationRef);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WebServiceActivityBehavior webServiceActivityBehavior = new WebServiceActivityBehavior(operation);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Element ioSpecificationElement = sendTaskElement.element("ioSpecification");<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (ioSpecificationElement != null) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IOSpecification ioSpecification = this.parseIOSpecification(ioSpecificationElement);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; webServiceActivityBehavior.setIoSpecification(ioSpecification);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for (Element dataAssociationElement : sendTaskElement.elements("dataInputAssociation")) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; AbstractDataInputAssociation dataAssociation = this.parseDataInputAssociation(dataAssociationElement);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; webServiceActivityBehavior.addDataInputAssociation(dataAssociation);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for (Element dataAssociationElement : sendTaskElement.elements("dataOutputAssociation")) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; AbstractDataOutputAssociation dataAssociation = this.parseDataOutputAssociation(dataAssociationElement);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; webServiceActivityBehavior.addDataOutputAssociation(dataAssociation);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; activity.setActivityBehavior(webServiceActivityBehavior);<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp; } else {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; addError("One of the attributes 'type' or 'operation' is mandatory on sendTask.", sendTaskElement);<br>&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp; parseExecutionListenersOnScope(sendTaskElement, activity);<br><br>&nbsp;&nbsp;&nbsp; for (BpmnParseListener parseListener: parseListeners) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; parseListener.parseSendTask(sendTaskElement, scope, activity);<br>&nbsp;&nbsp;&nbsp; }<br>&nbsp; }<br>

It seems something wrong for the "type" variable.The result is null,
When I edit it to String type = "mail" ;
It will run successful.

jbarrez

Okay, now I understand. Then the error message is correct: currently Activiti supports using the sendTask for sending an email or calling a webservice. When you don't provide a type, it will default to webservice, where an operation definition is required.