CBPRuntime :: GetWorkflow: Bitrix method

      
<?php 
//  CBPRuntime :: GetWorkflow()
//  /dist/bitrix/modules/bizproc/classes/general/runtime.php:290

    public function GetWorkflow($workflowId, $silent = false)
    {
        if (strlen($workflowId) <= 0)
            throw new Exception("workflowId");

        if (!$this->isStarted)
            $this->StartRuntime();

        if (array_key_exists($workflowId, $this->arWorkflows))
            return $this->arWorkflows[$workflowId];

        $workflow = new CBPWorkflow($workflowId, $this);

        $persister = CBPWorkflowPersister::GetPersister();
        $rootActivity = $persister->LoadWorkflow($workflowId, $silent);
        if ($rootActivity == null)
            throw new Exception("Empty root activity");

        $workflow->Reload($rootActivity);

        $this->arWorkflows[$workflowId] = $workflow;
        return $workflow;
    }