We have a requirement that need draw workflow on the runtime along with some other feature,
In order to do that, I need some meta data about the process definition, like which roles are in the flow, how many node, the node's atttibute and so on.
I write code below, try to get much metadata as I can which is not enough. like I don't know the task node's player
KieBase base = ksession.getKieBase();
RuleFlowProcess p = (RuleFlowProcess) base.getProcess("com.sample.evaluation");
Map<String, Object> m = p.getMetaData();
for (String key : m.keySet()) {
Object o = m.get(key);
System.out.println(key+":"+o);
}
Node[] nodes = p.getNodes();
for (int i = 0; i < nodes.length; i++) {
Node n = nodes[i];
System.out.println(n.getClass().getName());
Map<String, Object> meta =n.getMetaData();
for (String key : meta.keySet()) {
Object o = meta.get(key);
System.out.println(key+":"+o);
}
}
console output:
TargetNamespace:
Definitions:org.jbpm.bpmn2.core.Definitions@8c1c614
BPMN.Connections:[SequenceFlow (SequenceFlow_1) [_1 -> _2], SequenceFlow (SequenceFlow_2) [_2 -> _5], SequenceFlow (SequenceFlow_3) [_5 -> _4], SequenceFlow (SequenceFlow_4) [_5 -> _3], SequenceFlow (SequenceFlow_5) [_4 -> _6], SequenceFlow (SequenceFlow_6) [_3 -> _6], SequenceFlow (SequenceFlow_7) [_6 -> _7]]
org.jbpm.workflow.core.node.StartNode
height:36
width:36
UniqueId:_1
y:62
x:30
org.jbpm.workflow.core.node.HumanTaskNode
height:48
width:135
UniqueId:_2
y:56
x:96
org.jbpm.workflow.core.node.HumanTaskNode
height:48
width:136
UniqueId:_3
y:106
x:344
org.jbpm.workflow.core.node.HumanTaskNode
height:48
width:136
UniqueId:_4
y:9
x:344
org.jbpm.workflow.core.node.Split
height:48
width:48
UniqueId:_5
y:56
x:263
org.jbpm.workflow.core.node.Join
height:48
width:48
UniqueId:_6
y:56
x:512
org.jbpm.workflow.core.node.EndNode
height:36
width:36
UniqueId:_7
y:63
x:582
