import java.util.*;
import org.activiti.engine.*;
import org.activiti.engine.runtime.ProcessInstance;

public class OfferProcessingExecution {
	
	public static void main(String [] args)
	{
		ProcessEngineConfiguration pc = ProcessEngineConfiguration
				.createStandaloneInMemProcessEngineConfiguration();
				
		ProcessEngine processEngine = pc.buildProcessEngine(); 
		RepositoryService repositoryService = processEngine.getRepositoryService();
		RuntimeService runtimeService = processEngine.getRuntimeService();
		IdentityService identityService = processEngine.getIdentityService();
		repositoryService.createDeployment()
			.addClasspathResource("diagrams/nazwa.bpmn20.xml")  /* nazwa pliku */
			.deploy();
				
		Map<String, Object> variableMap = new HashMap<String, Object>();
		variableMap.put("descriptionType", "short");
		...
		identityService.setAuthenticatedUserId("kermit");     
		ProcessInstance processInstance =                     /* podac id procesu z diagramu */
                                      runtimeService.startProcessInstanceByKey("process-id", variableMap);	      
		System.out.println("process instance id: " + processInstance.getId());
	}
}