How to use

getNode

method

in

org.jbpm.workflow.instance.NodeInstance

private boolean canComplete() {
  if (nodeInstances.isEmpty()) {
    return true;
  } else {
    int eventSubprocessCounter = 0;
    for (NodeInstance nodeInstance : nodeInstances) {
      Node node = nodeInstance.getNode();
      if (node instanceof EventSubProcessNode) {
        if (((EventSubProcessNodeInstance) nodeInstance).getNodeInstances().isEmpty()) {
          eventSubprocessCounter++;
        }
      } else {
        return false;
      }
    }
    return eventSubprocessCounter == nodeInstances.size();
  }
}

public void nodeInstanceCompleted(NodeInstance nodeInstance, String outType) {
  Node nodeInstanceNode = nodeInstance.getNode();
  if( nodeInstanceNode != null ) {
    Object compensationBoolObj =  nodeInstanceNode.getMetaData().get("isForCompensation");
    boolean isForCompensation = compensationBoolObj == null ? false : ((Boolean) compensationBoolObj);
    if( isForCompensation ) {
      return;
    }
  }
  if (nodeInstance instanceof FaultNodeInstance || nodeInstance instanceof EndNodeInstance || nodeInstance instanceof EventSubProcessNodeInstance ) {
    if (getCompositeNode().isAutoComplete()) {
      if (nodeInstances.isEmpty()) {
        triggerCompleted(
          org.jbpm.workflow.core.Node.CONNECTION_DEFAULT_TYPE);
      }
    }
  } else {
    throw new IllegalArgumentException(
      "Completing a node instance that has no outgoing connection not supported.");
  }
}

private void updateNodeInstances(NodeInstanceContainer nodeInstanceContainer, Map<String, Long> nodeMapping) {
  for (NodeInstance nodeInstance: nodeInstanceContainer.getNodeInstances()) {
    String oldNodeId = ((NodeImpl)
      ((org.jbpm.workflow.instance.NodeInstance) nodeInstance).getNode()).getUniqueId();
    Long newNodeId = nodeMapping.get(oldNodeId);
    if (newNodeId == null) {
      newNodeId = nodeInstance.getNodeId();
    }
    ((NodeInstanceImpl) nodeInstance).setNodeId(newNodeId);
    if (nodeInstance instanceof NodeInstanceContainer) {
      updateNodeInstances((NodeInstanceContainer) nodeInstance, nodeMapping);
    }
  }
}

public void nodeInstanceCompleted(NodeInstance nodeInstance, String outType) {
  Node nodeInstanceNode = nodeInstance.getNode();
  if( nodeInstanceNode != null ) {
    Object compensationBoolObj =  nodeInstanceNode.getMetaData().get("isForCompensation");
    boolean isForCompensation = compensationBoolObj == null ? false : ((Boolean) compensationBoolObj);
    if( isForCompensation ) {
      return;
    }
  }
  if (nodeInstance instanceof FaultNodeInstance || nodeInstance instanceof EndNodeInstance ||
      ((org.jbpm.workflow.core.WorkflowProcess) getWorkflowProcess()).isDynamic()
      || nodeInstance instanceof CompositeNodeInstance) {
    if (((org.jbpm.workflow.core.WorkflowProcess) getProcess()).isAutoComplete()) {
      if (canComplete()) {
        setState(ProcessInstance.STATE_COMPLETED);
      }
    }
  } else {
    throw new IllegalArgumentException(
        "Completing a node instance that has no outgoing connection is not supported.");
  }
}

String oldNodeId = (String) ((NodeImpl) ((org.jbpm.workflow.instance.NodeInstance) nodeInstance).getNode()).getMetaData().get("UniqueId");
String newNodeId = nodeMapping.get(oldNodeId);
if (newNodeId == null) {
  Boolean isHidden = (Boolean) ((NodeImpl) ((org.jbpm.workflow.instance.NodeInstance) nodeInstance).getNode()).getMetaData().get("hidden");
  if (isHidden != null && isHidden.booleanValue()) {

private static void updateNodeInstances(NodeInstanceContainer nodeInstanceContainer, Map<String, Long> nodeMapping) {
  for (NodeInstance nodeInstance : nodeInstanceContainer.getNodeInstances()) {
    String oldNodeId = ((NodeImpl)
        ((org.jbpm.workflow.instance.NodeInstance) nodeInstance).getNode()).getUniqueId();
    Long newNodeId = nodeMapping.get(oldNodeId);
    if (newNodeId == null) {
      newNodeId = nodeInstance.getNodeId();
    }
    // clean up iteration levels for removed (old) nodes
    Map<String, Integer> iterLevels = ((WorkflowProcessInstanceImpl) nodeInstance.getProcessInstance()).getIterationLevels();
    String uniqueId = (String) ((NodeImpl) nodeInstance.getNode()).getMetaData("UniqueId");
    iterLevels.remove(uniqueId);
    // and now set to new node id
    ((NodeInstanceImpl) nodeInstance).setNodeId(newNodeId);
    if (nodeInstance instanceof NodeInstanceContainer) {
      updateNodeInstances((NodeInstanceContainer) nodeInstance, nodeMapping);
    }
  }
}

public void nodeInstanceCompleted(org.jbpm.workflow.instance.NodeInstance nodeInstance, String outType) {
  Node nodeInstanceNode = nodeInstance.getNode();
  if( nodeInstanceNode != null ) {
    Object compensationBoolObj =  nodeInstanceNode.getMetaData().get("isForCompensation");
    boolean isForCompensation = compensationBoolObj == null ? false : ((Boolean) compensationBoolObj);
    if( isForCompensation ) {
      return;
    }
  }
  String completionCondition = getDynamicNode().getCompletionExpression();
  // TODO what if we reach the end of one branch but others might still need to be created ?
  // TODO are we sure there will always be node instances left if we are not done yet?
  if (isTerminated(nodeInstance)) {
    triggerCompleted(NodeImpl.CONNECTION_DEFAULT_TYPE);
  } else if (getDynamicNode().isAutoComplete() && getNodeInstances(false).isEmpty()) {
    triggerCompleted(NodeImpl.CONNECTION_DEFAULT_TYPE);
  } else if (completionCondition != null && "mvel".equals(getDynamicNode().getLanguage())) {
    Object value = MVELSafeHelper.getEvaluator().eval(completionCondition, new NodeInstanceResolverFactory(this));
    if ( !(value instanceof Boolean) ) {
      throw new RuntimeException( "Completion condition expression must return boolean values: " + value
          + " for expression " + completionCondition);
    }
    if (((Boolean) value).booleanValue()) {
      triggerCompleted(NodeImpl.CONNECTION_DEFAULT_TYPE);
    }
  }
}

public boolean evaluate(NodeInstance instance,
            Connection connection,
            Constraint constraint) {
  WorkflowProcessInstance processInstance = instance.getProcessInstance();
  InternalAgenda agenda = (InternalAgenda) ((ProcessInstance) processInstance).getKnowledgeRuntime().getAgenda();
  String rule = "RuleFlow-Split-" + processInstance.getProcessId() + "-" + 
    ((Node) instance.getNode()).getUniqueId() + "-" + 
    ((Node) connection.getTo()).getUniqueId() + "-" + connection.getToType();
  return agenda.isRuleActiveInRuleFlowGroup( "DROOLS_SYSTEM", rule, processInstance.getId() );
}

private boolean canComplete() {
  if (nodeInstances.isEmpty()) {
    return true;
  } else {
    int eventSubprocessCounter = 0;
    for (NodeInstance nodeInstance : nodeInstances) {
      Node node = nodeInstance.getNode();
      if (node instanceof EventSubProcessNode) {
        if (((EventSubProcessNodeInstance) nodeInstance).getNodeInstances().isEmpty()) {
          eventSubprocessCounter++;
        }
      } else {
        return false;
      }
    }
    return eventSubprocessCounter == nodeInstances.size();
  }
}

public void nodeInstanceCompleted(NodeInstance nodeInstance, String outType) {
  Node nodeInstanceNode = nodeInstance.getNode();
  if( nodeInstanceNode != null ) {
    Object compensationBoolObj =  nodeInstanceNode.getMetaData().get("isForCompensation");
    boolean isForCompensation = compensationBoolObj == null ? false : ((Boolean) compensationBoolObj);
    if( isForCompensation ) {
      return;
    }
  }
  if (nodeInstance instanceof FaultNodeInstance || nodeInstance instanceof EndNodeInstance || nodeInstance instanceof EventSubProcessNodeInstance ) {
    if (getCompositeNode().isAutoComplete()) {
      if (nodeInstances.isEmpty()) {
        triggerCompleted(
          org.jbpm.workflow.core.Node.CONNECTION_DEFAULT_TYPE);
      }
    }
  } else {
    throw new IllegalArgumentException(
      "Completing a node instance that has no outgoing connection not supported.");
  }
}

private void updateNodeInstances(NodeInstanceContainer nodeInstanceContainer, Map<String, Long> nodeMapping) {
  for (NodeInstance nodeInstance: nodeInstanceContainer.getNodeInstances()) {
    String oldNodeId = ((NodeImpl)
      ((org.jbpm.workflow.instance.NodeInstance) nodeInstance).getNode()).getUniqueId();
    Long newNodeId = nodeMapping.get(oldNodeId);
    if (newNodeId == null) {
      newNodeId = nodeInstance.getNodeId();
    }
    ((NodeInstanceImpl) nodeInstance).setNodeId(newNodeId);
    if (nodeInstance instanceof NodeInstanceContainer) {
      updateNodeInstances((NodeInstanceContainer) nodeInstance, nodeMapping);
    }
  }
}

public void nodeInstanceCompleted(NodeInstance nodeInstance, String outType) {
  Node nodeInstanceNode = nodeInstance.getNode();
  if( nodeInstanceNode != null ) {
    Object compensationBoolObj =  nodeInstanceNode.getMetaData().get("isForCompensation");
    boolean isForCompensation = compensationBoolObj == null ? false : ((Boolean) compensationBoolObj);
    if( isForCompensation ) {
      return;
    }
  }
  if (nodeInstance instanceof FaultNodeInstance || nodeInstance instanceof EndNodeInstance ||
      ((org.jbpm.workflow.core.WorkflowProcess) getWorkflowProcess()).isDynamic()
      || nodeInstance instanceof CompositeNodeInstance) {
    if (((org.jbpm.workflow.core.WorkflowProcess) getProcess()).isAutoComplete()) {
      if (canComplete()) {
        setState(ProcessInstance.STATE_COMPLETED);
      }
    }
  } else {
    throw new IllegalArgumentException(
        "Completing a node instance that has no outgoing connection is not supported.");
  }
}

String oldNodeId = (String) ((NodeImpl) ((org.jbpm.workflow.instance.NodeInstance) nodeInstance).getNode()).getMetaData().get("UniqueId");
String newNodeId = nodeMapping.get(oldNodeId);
if (newNodeId == null) {
  Boolean isHidden = (Boolean) ((NodeImpl) ((org.jbpm.workflow.instance.NodeInstance) nodeInstance).getNode()).getMetaData().get("hidden");
  if (isHidden != null && isHidden.booleanValue()) {

private static void updateNodeInstances(NodeInstanceContainer nodeInstanceContainer, Map<String, Long> nodeMapping) {
  for (NodeInstance nodeInstance : nodeInstanceContainer.getNodeInstances()) {
    String oldNodeId = ((NodeImpl)
        ((org.jbpm.workflow.instance.NodeInstance) nodeInstance).getNode()).getUniqueId();
    Long newNodeId = nodeMapping.get(oldNodeId);
    if (newNodeId == null) {
      newNodeId = nodeInstance.getNodeId();
    }
    // clean up iteration levels for removed (old) nodes
    Map<String, Integer> iterLevels = ((WorkflowProcessInstanceImpl) nodeInstance.getProcessInstance()).getIterationLevels();
    String uniqueId = (String) ((NodeImpl) nodeInstance.getNode()).getMetaData("UniqueId");
    iterLevels.remove(uniqueId);
    // and now set to new node id
    ((NodeInstanceImpl) nodeInstance).setNodeId(newNodeId);
    if (nodeInstance instanceof NodeInstanceContainer) {
      updateNodeInstances((NodeInstanceContainer) nodeInstance, nodeMapping);
    }
  }
}

public void nodeInstanceCompleted(org.jbpm.workflow.instance.NodeInstance nodeInstance, String outType) {
  Node nodeInstanceNode = nodeInstance.getNode();
  if( nodeInstanceNode != null ) {
    Object compensationBoolObj =  nodeInstanceNode.getMetaData().get("isForCompensation");
    boolean isForCompensation = compensationBoolObj == null ? false : ((Boolean) compensationBoolObj);
    if( isForCompensation ) {
      return;
    }
  }
  String completionCondition = getDynamicNode().getCompletionExpression();
  // TODO what if we reach the end of one branch but others might still need to be created ?
  // TODO are we sure there will always be node instances left if we are not done yet?
  if (isTerminated(nodeInstance)) {
    triggerCompleted(NodeImpl.CONNECTION_DEFAULT_TYPE);
  } else if (getDynamicNode().isAutoComplete() && getNodeInstances(false).isEmpty()) {
    triggerCompleted(NodeImpl.CONNECTION_DEFAULT_TYPE);
  } else if (completionCondition != null && "mvel".equals(getDynamicNode().getLanguage())) {
    Object value = MVELSafeHelper.getEvaluator().eval(completionCondition, new NodeInstanceResolverFactory(this));
    if ( !(value instanceof Boolean) ) {
      throw new RuntimeException( "Completion condition expression must return boolean values: " + value
          + " for expression " + completionCondition);
    }
    if (((Boolean) value).booleanValue()) {
      triggerCompleted(NodeImpl.CONNECTION_DEFAULT_TYPE);
    }
  }
}

public boolean evaluate(NodeInstance instance,
            Connection connection,
            Constraint constraint) {
  WorkflowProcessInstance processInstance = instance.getProcessInstance();
  InternalAgenda agenda = (InternalAgenda) ((ProcessInstance) processInstance).getKnowledgeRuntime().getAgenda();
  String rule = "RuleFlow-Split-" + processInstance.getProcessId() + "-" + 
    ((Node) instance.getNode()).getUniqueId() + "-" + 
    ((Node) connection.getTo()).getUniqueId() + "-" + connection.getToType();
  return agenda.isRuleActiveInRuleFlowGroup( "DROOLS_SYSTEM", rule, processInstance.getId() );
}