Examples with StateInstance io.seata.saga.statelang.domain.StateInstance used on opensource projects

Example 31 with StateInstance

use of io.seata.saga.statelang.domain.StateInstance in project seata by seata.

the class SubStateMachineHandler method forwardStateMachine.

private StateMachineInstance forwardStateMachine(Map<String, Object> startParams, StateMachineEngine engine, ProcessContext context, StateInstance stateInstance, SubStateMachine subStateMachine) {
    StateMachineConfig stateMachineConfig = (StateMachineConfig) context.getVariable(DomainConstants.VAR_NAME_STATEMACHINE_CONFIG);
    StateLogStore statePersister = stateMachineConfig.getStateLogStore();
    if (statePersister == null) {
        throw new ForwardInvalidException("StatePersister is not configured", FrameworkErrorCode.ObjectNotExists);
    }
    StateInstance originalStateInst = stateInstance;
    do {
        originalStateInst = statePersister.getStateInstance(originalStateInst.getStateIdRetriedFor(), originalStateInst.getMachineInstanceId());
    } while (StringUtils.hasText(originalStateInst.getStateIdRetriedFor()));
    List<StateMachineInstance> subInst = statePersister.queryStateMachineInstanceByParentId(EngineUtils.generateParentId(originalStateInst));
    if (subInst.size() > 0) {
        String subInstId = subInst.get(0).getId();
        return engine.forward(subInstId, startParams);
    } else {
        originalStateInst.setStateMachineInstance(stateInstance.getStateMachineInstance());
        return startNewStateMachine(startParams, engine, originalStateInst, subStateMachine);
    }
}