Package com.catify.processengine.core.nodes

Source Code of com.catify.processengine.core.nodes.SubProcessNode

/**
* *******************************************************
* Copyright (C) 2013 catify <info@catify.com>
* *******************************************************
*
* 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 com.catify.processengine.core.nodes;

import java.util.Date;
import java.util.List;

import akka.actor.ActorRef;

import com.catify.processengine.core.data.model.NodeInstaceStates;
import com.catify.processengine.core.messages.ActivationMessage;
import com.catify.processengine.core.messages.DeactivationMessage;
import com.catify.processengine.core.messages.TriggerMessage;
import com.catify.processengine.core.services.NodeInstanceMediatorService;

/**
* The SubProcessNode can embed other FlowElements. To implement this it triggers the embedded start event.
* When the embedded end event is reached it will trigger this sub process. After that the sub process continues
* like a usual node.
*
* @author christopher köster
*
*/
public class SubProcessNode extends FlowElement {
 
  private List<ActorRef> embeddedStartNodes;
  private List<ActorRef> embeddedNodes;

  public SubProcessNode (String uniqueProcessId, String uniqueFlowNodeId, List<ActorRef> outgoingNodes,
      List<ActorRef> embeddedStartNodes, List<ActorRef> embeddedNodes) {
    this.setUniqueProcessId(uniqueProcessId);
    this.setUniqueFlowNodeId(uniqueFlowNodeId);
    this.setOutgoingNodes(outgoingNodes);
    this.setNodeInstanceMediatorService(new NodeInstanceMediatorService(
        uniqueProcessId, uniqueFlowNodeId));
   
    this.embeddedStartNodes = embeddedStartNodes;
    this.embeddedNodes = embeddedNodes;
  }

  @Override
  protected void activate(ActivationMessage message) {
    this.getNodeInstanceMediatorService().setState(
        message.getProcessInstanceId(), NodeInstaceStates.ACTIVE_STATE);
   
    this.getNodeInstanceMediatorService().setNodeInstanceStartTime(message.getProcessInstanceId(), new Date());
   
    this.getNodeInstanceMediatorService().persistChanges();
   
    // start the sub process
    this.sendMessageToNodeActors(new TriggerMessage(message.getProcessInstanceId(), null), getStartNodes());
  }

  @Override
  protected void deactivate(DeactivationMessage message) {
    this.getNodeInstanceMediatorService().setNodeInstanceEndTime(message.getProcessInstanceId(), new Date());
   
    this.getNodeInstanceMediatorService().setState(
        message.getProcessInstanceId(), NodeInstaceStates.DEACTIVATED_STATE);
   
    this.getNodeInstanceMediatorService().persistChanges();
   
    this.sendMessageToNodeActors(message, getSubNodes());
  }

  @Override
  protected void trigger(TriggerMessage message) {
    this.getNodeInstanceMediatorService().setNodeInstanceEndTime(message.getProcessInstanceId(), new Date());
   
    this.getNodeInstanceMediatorService().setState(
        message.getProcessInstanceId(), NodeInstaceStates.PASSED_STATE);
   
    this.getNodeInstanceMediatorService().persistChanges();

    this.sendMessageToNodeActors(new ActivationMessage(message.getProcessInstanceId()), getOutgoingNodes());
  }

 
  public List<ActorRef> getStartNodes() {
    return embeddedStartNodes;
  }

  public void setStartNodes(List<ActorRef> startNodes) {
    this.embeddedStartNodes = startNodes;
  }

  public List<ActorRef> getSubNodes() {
    return embeddedNodes;
  }

  public void setSubNodes(List<ActorRef> subNodes) {
    this.embeddedNodes = subNodes;
  }

}
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