///<inheritdoc />
public virtual IProcessInstance Execute(ICommandContext commandContext)
{
if (messageName is null)
{
throw new ActivitiIllegalArgumentException("Cannot start process instance by message: message name is null");
}
IMessageEventSubscriptionEntity messageEventSubscription = commandContext.EventSubscriptionEntityManager.FindMessageStartEventSubscriptionByName(messageName, tenantId);
if (messageEventSubscription == null)
{
throw new ActivitiObjectNotFoundException("Cannot start process instance by message: no subscription to message with name '" + messageName + "' found.", typeof(IMessageEventSubscriptionEntity));
}
string processDefinitionId = messageEventSubscription.Configuration;
if (string.IsNullOrWhiteSpace(processDefinitionId))
{
throw new ActivitiException("Cannot start process instance by message: subscription to message with name '" + messageName + "' is not a message start event.");
}
DeploymentManager deploymentCache = commandContext.ProcessEngineConfiguration.DeploymentManager;
IProcessDefinition processDefinition = deploymentCache.FindDeployedProcessDefinitionById(processDefinitionId);
if (processDefinition == null)
{
throw new ActivitiObjectNotFoundException("No process definition found for id '" + processDefinitionId + "'", typeof(IProcessDefinition));
}
ProcessInstanceHelper processInstanceHelper = commandContext.ProcessEngineConfiguration.ProcessInstanceHelper;
IProcessInstance processInstance = processInstanceHelper.CreateAndStartProcessInstanceByMessage(processDefinition, messageName, processVariables, transientVariables);
return(processInstance);
}
public virtual IProcessInstance Execute(ICommandContext commandContext)
{
DeploymentManager deploymentCache = commandContext.ProcessEngineConfiguration.DeploymentManager;
IProcessDefinition processDefinition = deploymentCache.FindDeployedProcessDefinitionById(processDefinitionId);
if (processDefinition == null)
{
throw new ActivitiObjectNotFoundException("No process definition found for id '" + processDefinitionId + "'", typeof(IProcessDefinition));
}
ProcessInstanceHelper processInstanceHelper = commandContext.ProcessEngineConfiguration.ProcessInstanceHelper;
// Get model from cache
Process process = ProcessDefinitionUtil.GetProcess(processDefinition.Id);
if (process == null)
{
throw new ActivitiException("Cannot start process instance. Process model " + processDefinition.Name + " (id = " + processDefinition.Id + ") could not be found");
}
FlowElement initialFlowElement = process.FlowElements.FirstOrDefault(x => x.Id == activityId);
IProcessInstance processInstance = processInstanceHelper.CreateAndStartProcessInstanceWithInitialFlowElement(processDefinition, businessKey, processInstanceName, initialFlowElement, process, processVariables, transientVariables, startProcessInstance);
return(processInstance);
}
public virtual void Execute(IJobEntity job, string configuration, IExecutionEntity execution, ICommandContext commandContext)
{
IProcessDefinitionEntity processDefinitionEntity = ProcessDefinitionUtil.GetProcessDefinitionFromDatabase(job.ProcessDefinitionId); // From DB -> need to get latest suspended state
if (processDefinitionEntity == null)
{
throw new ActivitiException("Could not find process definition needed for timer start event");
}
try
{
if (!processDefinitionEntity.Suspended)
{
if (commandContext.EventDispatcher.Enabled)
{
commandContext.EventDispatcher.DispatchEvent(ActivitiEventBuilder.CreateEntityEvent(ActivitiEventType.TIMER_FIRED, job));
}
// Find initial flow element matching the signal start event
Process process = ProcessDefinitionUtil.GetProcess(job.ProcessDefinitionId);
string activityId = GetActivityIdFromConfiguration(configuration);
if (string.IsNullOrWhiteSpace(activityId) == false)
{
FlowElement flowElement = process.GetFlowElement(activityId, true);
if (flowElement == null)
{
throw new ActivitiException("Could not find matching FlowElement for activityId " + activityId);
}
ProcessInstanceHelper processInstanceHelper = commandContext.ProcessEngineConfiguration.ProcessInstanceHelper;
processInstanceHelper.CreateAndStartProcessInstanceWithInitialFlowElement(processDefinitionEntity, null, null, flowElement, process, null, null, true);
}
else
{
(new StartProcessInstanceCmd(processDefinitionEntity.Key, null, null, null, job.TenantId)).Execute(commandContext);
}
}
else
{
log.LogDebug($"ignoring timer of suspended process definition {processDefinitionEntity.Name}");
}
}
catch (Exception e)
{
log.LogError($"exception during timer execution: {e.Message}");
throw new ActivitiException("exception during timer execution: " + e.Message, e);
}
}
public override void HandleEvent(IEventSubscriptionEntity eventSubscription, object payload, ICommandContext commandContext)
{
if (eventSubscription.ExecutionId is object)
{
base.HandleEvent(eventSubscription, payload, commandContext);
}
else if (eventSubscription.ProcessDefinitionId is object)
{
// Find initial flow element matching the signal start event
string processDefinitionId = eventSubscription.ProcessDefinitionId;
IProcessDefinition processDefinition = ProcessDefinitionUtil.GetProcessDefinition(processDefinitionId);
if (processDefinition == null)
{
throw new ActivitiObjectNotFoundException("No process definition found for id '" + processDefinitionId + "'", typeof(IProcessDefinition));
}
if (processDefinition.Suspended)
{
throw new ActivitiException("Could not handle signal: process definition with id: " + processDefinitionId + " is suspended");
}
Process process = ProcessDefinitionUtil.GetProcess(processDefinitionId);
FlowElement flowElement = process.GetFlowElement(eventSubscription.ActivityId, true);
if (flowElement == null)
{
throw new ActivitiException("Could not find matching FlowElement for activityId " + eventSubscription.ActivityId);
}
// Start process instance via that flow element
IDictionary <string, object> variables = null;
if (payload is System.Collections.IDictionary)
{
variables = (IDictionary <string, object>)payload;
}
ProcessInstanceHelper processInstanceHelper = commandContext.ProcessEngineConfiguration.ProcessInstanceHelper;
processInstanceHelper.CreateAndStartProcessInstanceWithInitialFlowElement(processDefinition, null, null, flowElement, process, variables, null, true);
}
else
{
throw new ActivitiException("Invalid signal handling: no execution nor process definition set");
}
}
