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This project forked from processmaker/nayra

Nayra is a BPMN workflow engine in PHP. Utilize it in your own projects to have your own complex workflow capabilities.

License: Apache License 2.0

PHP 100.00%

nayra's Introduction

ProcessMaker Nayra

ProcessMaker Nayra is a package that provides base classes to implement a process execution engine. This includes patterns to implement activities, events and gateways.

How to execute a process

Load a BPMN definition

        $bpmnRepository = new BpmnDocument();
        $bpmnRepository->setEngine($this->engine);
        $bpmnRepository->setFactory($this->repository);
        $bpmnRepository->load('files/ParallelGateway.bpmn');

Get a reference to the process

        $process = $bpmnRepository->getProcess('ParallelGateway');

Create a data storage

        $dataStore = $this->repository->createDataStore();

Create a process instance

        $instance = $this->engine->createExecutionInstance($process, $dataStore);

Trigger the start event

        $start = $bpmnRepository->getStartEvent('StartEvent');
        $start->start($instance);

Execute tokens and run to the next state

        $this->engine->runToNextState();

One token arrives to the first task

        $firstTask = $bpmnRepository->getScriptTask('start');
        $token = $firstTask->getTokens($instance)->item(0);

Complete the first task

        $startActivity->complete($token);

Execute tokens and run to the next state

        $this->engine->runToNextState();

One token arrives to the second task and one to the third task

        $secondTask = $bpmnRepository->getScriptTask('ScriptTask_1');
        $token1 = $secondTask->getTokens($instance)->item(0);
        $thirdTask = $bpmnRepository->getScriptTask('ScriptTask_2');
        $token2 = $thirdTask->getTokens($instance)->item(0);