Examples of org.camunda.bpm.engine.impl.history.handler.HistoryEventHandler

Package org.camunda.bpm.engine.impl.history.handler

Examples of org.camunda.bpm.engine.impl.history.handler.HistoryEventHandler

org.camunda.bpm.engine.impl.history.handler.HistoryEventHandler

The interface for implementing an history event handler.

The {@link HistoryEventHandler} is responsible for consuming the event. Many differentimplementations of this interface can be imagined. Some implementations might persist the event to a database, others might persist the event to a message queue and handle it asynchronously.

The default implementation of this interface is {@link DbHistoryEventHandler} whichpersists events to a database.
@author Daniel Meyer


    int historyLevel = Context.getProcessEngineConfiguration().getHistoryLevel();
    if (historyLevel >=ProcessEngineConfigurationImpl.HISTORYLEVEL_AUDIT) {


      final ProcessEngineConfigurationImpl processEngineConfiguration = Context.getProcessEngineConfiguration();
      final HistoryEventHandler eventHandler = processEngineConfiguration.getHistoryEventHandler();
      final HistoryEventProducer eventProducer = processEngineConfiguration.getHistoryEventProducer();


      HistoryEvent evt = eventProducer.createHistoricVariableUpdateEvt(variableInstance, sourceActivityExecution);
      eventHandler.handleEvent(evt);


    }


  }

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  }


  public void notify(DelegateTask task) {
    
    // get the event handler
    final HistoryEventHandler historyEventHandler = Context.getProcessEngineConfiguration()
      .getHistoryEventHandler();
    
    ExecutionEntity execution = ((TaskEntity) task).getExecution();
    
    if (execution != null) {
      
      // delegate creation of the history event to the producer
      HistoryEvent historyEvent = createHistoryEvent(task, execution);
      
      // pass the event to the handler
      historyEventHandler.handleEvent(historyEvent);
      
    }
    
  }

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  }


  public void notify(DelegateExecution execution) throws Exception {
    
    // get the event handler
    final HistoryEventHandler historyEventHandler = Context.getProcessEngineConfiguration()
      .getHistoryEventHandler();
    
    // delegate creation of the history event to the producer
    HistoryEvent historyEvent = createHistoryEvent(execution);
    
    // pass the event to the handler
    historyEventHandler.handleEvent(historyEvent);
    
  }

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    int historyLevel = configuration.getHistoryLevel();
    // TODO: This smells bad, as the rest of the history is done via the ParseListener
    if (historyLevel>=ProcessEngineConfigurationImpl.HISTORYLEVEL_ACTIVITY) {


      final HistoryEventProducer eventFactory = configuration.getHistoryEventProducer();
      final HistoryEventHandler eventHandler = configuration.getHistoryEventHandler();


      // publish event for historic process instance start
      HistoryEvent pise = eventFactory.createProcessInstanceStartEvt(processInstance);
      eventHandler.handleEvent(pise);


    }


    return processInstance;
  }

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    int historyLevel = configuration.getHistoryLevel();
    if(historyLevel>=ProcessEngineConfigurationImpl.HISTORYLEVEL_AUDIT) {


      final HistoryEventProducer eventProducer = configuration.getHistoryEventProducer();
      final HistoryEventHandler eventHandler = configuration.getHistoryEventHandler();


      HistoryEvent evt = eventProducer.createTaskInstanceUpdateEvt(taskEntity);
      eventHandler.handleEvent(evt);


    }
  }

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    int historyLevel = configuration.getHistoryLevel();
    if(historyLevel>=ProcessEngineConfigurationImpl.HISTORYLEVEL_AUDIT) {


      final HistoryEventProducer eventProducer = configuration.getHistoryEventProducer();
      final HistoryEventHandler eventHandler = configuration.getHistoryEventHandler();


      TaskEntity taskEntity = Context.getCommandContext()
          .getDbEntityManager()
          .selectById(TaskEntity.class, taskId);


      HistoryEvent evt = eventProducer.createTaskInstanceCompleteEvt(taskEntity, deleteReason);


      eventHandler.handleEvent(evt);
    }
  }

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    int historyLevel = configuration.getHistoryLevel();
    if(historyLevel>=ProcessEngineConfigurationImpl.HISTORYLEVEL_AUDIT) {


      final HistoryEventProducer eventProducer = configuration.getHistoryEventProducer();
      final HistoryEventHandler eventHandler = configuration.getHistoryEventHandler();


      HistoryEvent evt = eventProducer.createTaskInstanceCreateEvt(task);
      eventHandler.handleEvent(evt);


    }
  }

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