Examples of SimpleFlow

org.springframework.batch.core.job.flow.support.SimpleFlow
A {@link Flow} that branches conditionally depending on the exit status ofthe last {@link State}. The input parameters are the state transitions (in no particular order). The start state name can be specified explicitly (and must exist in the set of transitions), or computed from the existing transitions, if unambiguous. @author Dave Syer @author Michael Minella @since 2.0

Examples of org.springframework.batch.core.job.flow.support.SimpleFlow

    assertEquals(2, job.getStepNames().size());
  }


  @Test
  public void testTwoSteps() throws Exception {
    SimpleFlow flow = new JsrFlow("job");
    List<StateTransition> transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new StepState(new StubStep("step1")), "step2"));
    StepState step2 = new StepState(new StubStep("step2"));
    transitions.add(StateTransition.createStateTransition(step2, ExitStatus.FAILED.getExitCode(), "end0"));
    transitions.add(StateTransition.createStateTransition(step2, ExitStatus.COMPLETED.getExitCode(), "end1"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.FAILED, "end0")));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end1")));
    flow.setStateTransitions(transitions);
    job.setFlow(flow);
    job.afterPropertiesSet();
    job.doExecute(jobExecution);
    StepExecution stepExecution = getStepExecution(jobExecution, "step2");
    assertEquals(ExitStatus.COMPLETED, stepExecution.getExitStatus());

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Examples of org.springframework.batch.core.job.flow.support.SimpleFlow

    assertEquals(2, jobExecution.getStepExecutions().size());
  }


  @Test
  public void testFailedStep() throws Exception {
    SimpleFlow flow = new JsrFlow("job");
    List<StateTransition> transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new StateSupport("step1", FlowExecutionStatus.FAILED),
        "step2"));
    StepState step2 = new StepState(new StubStep("step2"));
    transitions.add(StateTransition.createStateTransition(step2, ExitStatus.FAILED.getExitCode(), "end0"));
    transitions.add(StateTransition.createStateTransition(step2, ExitStatus.COMPLETED.getExitCode(), "end1"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.FAILED, "end0")));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end1")));
    flow.setStateTransitions(transitions);
    job.setFlow(flow);
    job.afterPropertiesSet();
    job.doExecute(jobExecution);
    StepExecution stepExecution = getStepExecution(jobExecution, "step2");
    assertEquals(ExitStatus.COMPLETED, stepExecution.getExitStatus());

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Examples of org.springframework.batch.core.job.flow.support.SimpleFlow

    assertEquals(2, jobExecution.getStepExecutions().size());
  }


  @Test
  public void testFailedStepRestarted() throws Exception {
    SimpleFlow flow = new JsrFlow("job");
    List<StateTransition> transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new StepState(new StubStep("step1")), "step2"));
    State step2State = new StateSupport("step2") {
      @Override
      public FlowExecutionStatus handle(FlowExecutor executor) throws Exception {
        JobExecution jobExecution = executor.getJobExecution();
        StepExecution stepExecution = jobExecution.createStepExecution(getName());
        jobRepository.add(stepExecution);
        if (fail) {
          return FlowExecutionStatus.FAILED;
        }
        else {
          return FlowExecutionStatus.COMPLETED;
        }
      }
    };
    transitions.add(StateTransition.createStateTransition(step2State, ExitStatus.COMPLETED.getExitCode(), "end0"));
    transitions.add(StateTransition.createStateTransition(step2State, ExitStatus.FAILED.getExitCode(), "end1"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end0")));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.FAILED, "end1")));
    flow.setStateTransitions(transitions);
    job.setFlow(flow);
    job.afterPropertiesSet();
    fail = true;
    job.execute(jobExecution);
    assertEquals(ExitStatus.FAILED, jobExecution.getExitStatus());

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Examples of org.springframework.batch.core.job.flow.support.SimpleFlow

    assertEquals(1, jobExecution.getStepExecutions().size());
  }


  @Test
  public void testStoppingStep() throws Exception {
    SimpleFlow flow = new JsrFlow("job");
    List<StateTransition> transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new StepState(new StubStep("step1")), "step2"));
    State state2 = new StateSupport("step2", FlowExecutionStatus.FAILED);
    transitions.add(StateTransition.createStateTransition(state2, ExitStatus.FAILED.getExitCode(), "end0"));
    transitions.add(StateTransition.createStateTransition(state2, ExitStatus.COMPLETED.getExitCode(), "end1"));
    transitions.add(StateTransition.createStateTransition(new EndState(FlowExecutionStatus.STOPPED, "end0"),
        "step3"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end1")));
    transitions.add(StateTransition.createStateTransition(new StepState(new StubStep("step3")), "end2"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end2")));
    flow.setStateTransitions(transitions);
    job.setFlow(flow);
    job.afterPropertiesSet();
    job.doExecute(jobExecution);
    assertEquals(2, jobExecution.getStepExecutions().size());
    assertEquals(BatchStatus.STOPPED, jobExecution.getStatus());

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Examples of org.springframework.batch.core.job.flow.support.SimpleFlow

    assertEquals(BatchStatus.STOPPED, jobExecution.getStatus());
  }


  @Test
  public void testInterrupted() throws Exception {
    SimpleFlow flow = new JsrFlow("job");
    List<StateTransition> transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new StepState(new StubStep("step1") {
      @Override
      public void execute(StepExecution stepExecution) throws JobInterruptedException {
        stepExecution.setStatus(BatchStatus.STOPPING);
        jobRepository.update(stepExecution);
      }
    }), "end0"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end0")));
    flow.setStateTransitions(transitions);
    flow.afterPropertiesSet();
    job.setFlow(flow);
    job.afterPropertiesSet();
    job.execute(jobExecution);
    assertEquals(BatchStatus.STOPPED, jobExecution.getStatus());
    checkRepository(BatchStatus.STOPPED, ExitStatus.STOPPED);

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Examples of org.springframework.batch.core.job.flow.support.SimpleFlow

    assertEquals(JobInterruptedException.class, jobExecution.getFailureExceptions().get(0).getClass());
  }


  @Test
  public void testUnknownStatusStopsJob() throws Exception {
    SimpleFlow flow = new JsrFlow("job");
    List<StateTransition> transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new StepState(new StubStep("step1") {
      @Override
      public void execute(StepExecution stepExecution) throws JobInterruptedException {
        stepExecution.setStatus(BatchStatus.UNKNOWN);
        stepExecution.setTerminateOnly();
        jobRepository.update(stepExecution);
      }
    }), "step2"));
    transitions.add(StateTransition.createStateTransition(new StepState(new StubStep("step2")), "end0"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end0")));
    flow.setStateTransitions(transitions);
    flow.afterPropertiesSet();
    job.setFlow(flow);
    job.afterPropertiesSet();
    job.execute(jobExecution);
    assertEquals(BatchStatus.UNKNOWN, jobExecution.getStatus());
    checkRepository(BatchStatus.UNKNOWN, ExitStatus.STOPPED);

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Examples of org.springframework.batch.core.job.flow.support.SimpleFlow

    assertEquals(JobInterruptedException.class, jobExecution.getFailureExceptions().get(0).getClass());
  }


  @Test
  public void testInterruptedSplit() throws Exception {
    SimpleFlow flow = new JsrFlow("job");
    SimpleFlow flow1 = new JsrFlow("flow1");
    SimpleFlow flow2 = new JsrFlow("flow2");


    List<StateTransition> transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new StepState(new StubStep("step1") {
      @Override
      public void execute(StepExecution stepExecution) throws JobInterruptedException {
        if (!stepExecution.getJobExecution().getExecutionContext().containsKey("STOPPED")) {
          stepExecution.getJobExecution().getExecutionContext().put("STOPPED", true);
          stepExecution.setStatus(BatchStatus.STOPPED);
          jobRepository.update(stepExecution);
        }
        else {
          fail("The Job should have stopped by now");
        }
      }
    }), "end0"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end0")));
    flow1.setStateTransitions(new ArrayList<StateTransition>(transitions));
    flow1.afterPropertiesSet();
    flow2.setStateTransitions(new ArrayList<StateTransition>(transitions));
    flow2.afterPropertiesSet();


    transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new SplitState(Arrays.<Flow> asList(flow1, flow2),
        "split"), "end0"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end0")));

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Examples of org.springframework.batch.core.job.flow.support.SimpleFlow

    }
  }


  @Test
  public void testInterruptedException() throws Exception {
    SimpleFlow flow = new JsrFlow("job");
    List<StateTransition> transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new StepState(new StubStep("step1") {
      @Override
      public void execute(StepExecution stepExecution) throws JobInterruptedException {
        throw new JobInterruptedException("Stopped");
      }
    }), "end0"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end0")));
    flow.setStateTransitions(transitions);
    flow.afterPropertiesSet();
    job.setFlow(flow);
    job.afterPropertiesSet();
    job.execute(jobExecution);
    assertEquals(BatchStatus.STOPPED, jobExecution.getStatus());
    checkRepository(BatchStatus.STOPPED, ExitStatus.STOPPED);

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Examples of org.springframework.batch.core.job.flow.support.SimpleFlow

    assertEquals(JobInterruptedException.class, jobExecution.getFailureExceptions().get(0).getClass());
  }


  @Test
  public void testInterruptedSplitException() throws Exception {
    SimpleFlow flow = new JsrFlow("job");
    SimpleFlow flow1 = new JsrFlow("flow1");
    SimpleFlow flow2 = new JsrFlow("flow2");


    List<StateTransition> transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new StepState(new StubStep("step1") {
      @Override
      public void execute(StepExecution stepExecution) throws JobInterruptedException {
        throw new JobInterruptedException("Stopped");
      }
    }), "end0"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end0")));
    flow1.setStateTransitions(new ArrayList<StateTransition>(transitions));
    flow1.afterPropertiesSet();
    flow2.setStateTransitions(new ArrayList<StateTransition>(transitions));
    flow2.afterPropertiesSet();


    transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new SplitState(Arrays.<Flow> asList(flow1, flow2),
        "split"), "end0"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end0")));

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Examples of org.springframework.batch.core.job.flow.support.SimpleFlow

    assertEquals(JobInterruptedException.class, jobExecution.getFailureExceptions().get(0).getClass());
  }


  @Test
  public void testEndStateStopped() throws Exception {
    SimpleFlow flow = new JsrFlow("job");
    List<StateTransition> transitions = new ArrayList<StateTransition>();
    transitions.add(StateTransition.createStateTransition(new StepState(new StubStep("step1")), "end"));
    transitions.add(StateTransition
        .createStateTransition(new EndState(FlowExecutionStatus.STOPPED, "end"), "step2"));
    StepState step2 = new StepState(new StubStep("step2"));
    transitions.add(StateTransition.createStateTransition(step2, ExitStatus.FAILED.getExitCode(), "end0"));
    transitions.add(StateTransition.createStateTransition(step2, ExitStatus.COMPLETED.getExitCode(), "end1"));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.FAILED, "end0")));
    transitions.add(StateTransition.createEndStateTransition(new EndState(FlowExecutionStatus.COMPLETED, "end1")));
    flow.setStateTransitions(transitions);
    job.setFlow(flow);
    job.afterPropertiesSet();
    job.doExecute(jobExecution);
    assertEquals(1, jobExecution.getStepExecutions().size());
    assertEquals(BatchStatus.STOPPED, jobExecution.getStatus());

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