Examples of org.camunda.bpm.engine.history.HistoricProcessInstanceQuery

org.camunda.bpm.engine.history.HistoricProcessInstanceQuery
Allows programmatic querying of {@link HistoricProcessInstance}s. @author Tom Baeyens @author Joram Barrez @author Falko Menge

  private void createHistoricProcessInstanceMock() {
    List<HistoricProcessInstance> processes = new ArrayList<HistoricProcessInstance>();
    HistoricProcessInstance mockInstance = MockProvider.createMockHistoricProcessInstance();
    processes.add(mockInstance);


    HistoricProcessInstanceQuery mockHistoricProcessInstanceQuery = mock(HistoricProcessInstanceQuery.class);
    when(mockHistoricProcessInstanceQuery.list()).thenReturn(processes);
    when(mockHistoryService.createHistoricProcessInstanceQuery()).thenReturn(mockHistoricProcessInstanceQuery);
  }

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    processInstanceIds.add(runtimeService.startProcessInstanceByKey("oneTaskProcess2", "1").getId());


    // start an instance that will not be part of the query
    runtimeService.startProcessInstanceByKey("oneTaskProcess2", "2");


    HistoricProcessInstanceQuery processInstanceQuery = historyService.createHistoricProcessInstanceQuery().processInstanceIds(processInstanceIds);
    assertEquals(5, processInstanceQuery.count());


    List<HistoricProcessInstance> processInstances = processInstanceQuery.list();
    assertNotNull(processInstances);
    assertEquals(5, processInstances.size());


    for (HistoricProcessInstance historicProcessInstance : processInstances) {
      assertTrue(processInstanceIds.contains(historicProcessInstance.getId()));

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    vars.put("stringVar", "azerty");
    ProcessInstance processInstance3 = runtimeService.startProcessInstanceByKey("oneTaskProcess", vars);
    taskService.complete(taskService.createTaskQuery().processInstanceId(processInstance3.getId()).singleResult().getId());


    // Test EQUAL on single string variable, should result in 2 matches
    HistoricProcessInstanceQuery query = historyService.createHistoricProcessInstanceQuery().variableValueEquals("stringVar", "abcdef");
    List<HistoricProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());


    // Test EQUAL on two string variables, should result in single match
    query = historyService.createHistoricProcessInstanceQuery().variableValueEquals("stringVar", "abcdef").variableValueEquals("stringVar2", "ghijkl");
    HistoricProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());


    // Test NOT_EQUAL, should return only 1 resultInstance
    resultInstance = historyService.createHistoricProcessInstanceQuery().variableValueNotEquals("stringVar", "abcdef").singleResult();

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    Calendar oneYearAgo = Calendar.getInstance();
    oneYearAgo.add(Calendar.YEAR, -1);


    // Query on single short variable, should result in 2 matches
    HistoricProcessInstanceQuery query = historyService.createHistoricProcessInstanceQuery().variableValueEquals("dateVar", date1);
    List<HistoricProcessInstance> processInstances = query.list();
    Assert.assertNotNull(processInstances);
    Assert.assertEquals(2, processInstances.size());


    // Query on two short variables, should result in single value
    query = historyService.createHistoricProcessInstanceQuery().variableValueEquals("dateVar", date1).variableValueEquals("dateVar2", date2);
    HistoricProcessInstance resultInstance = query.singleResult();
    Assert.assertNotNull(resultInstance);
    Assert.assertEquals(processInstance2.getId(), resultInstance.getId());


    // Query with unexisting variable value
    Date unexistingDate = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss").parse("01/01/1989 12:00:00");

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    caseService
      .withCaseExecution(processTaskId)
      .manualStart();


    // then
    HistoricProcessInstanceQuery query = historyService.createHistoricProcessInstanceQuery();


    query.caseInstanceId(caseInstanceId);


    assertEquals(1, query.count());
    assertEquals(1, query.list().size());


    HistoricProcessInstance historicProcessInstance = query.singleResult();
    assertNotNull(historicProcessInstance);
    assertNull(historicProcessInstance.getEndTime());


    assertEquals(caseInstanceId, historicProcessInstance.getCaseInstanceId());


    // complete existing user task -> completes the process instance
    String taskId = taskService
        .createTaskQuery()
        .caseInstanceId(caseInstanceId)
        .singleResult()
        .getId();
    taskService.complete(taskId);


    // the completed historic process instance is still associated with the
    // case instance id
    assertEquals(1, query.count());
    assertEquals(1, query.list().size());


    historicProcessInstance = query.singleResult();
    assertNotNull(historicProcessInstance);
    assertNotNull(historicProcessInstance.getEndTime());


    assertEquals(caseInstanceId, historicProcessInstance.getCaseInstanceId());

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    caseService
      .withCaseExecution(processTaskId)
      .manualStart();


    // then
    HistoricProcessInstanceQuery query = historyService.createHistoricProcessInstanceQuery();


    query.caseInstanceId(caseInstanceId);


    assertEquals(2, query.count());
    assertEquals(2, query.list().size());


    for (HistoricProcessInstance hpi : query.list()) {
      assertEquals(caseInstanceId, hpi.getCaseInstanceId());
    }


    // complete existing user task -> completes the process instance(s)
    String taskId = taskService
        .createTaskQuery()
        .caseInstanceId(caseInstanceId)
        .singleResult()
        .getId();
    taskService.complete(taskId);


    // the completed historic process instance is still associated with the
    // case instance id
    assertEquals(2, query.count());
    assertEquals(2, query.list().size());


    for (HistoricProcessInstance hpi : query.list()) {
      assertEquals(caseInstanceId, hpi.getCaseInstanceId());
    }


  }

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    }


  }


  public void testQueryByInvalidCaseInstanceId() {
    HistoricProcessInstanceQuery query = historyService.createHistoricProcessInstanceQuery();


    query.caseInstanceId("invalid");


    assertEquals(0, query.count());
    assertEquals(0, query.list().size());


    query.caseInstanceId(null);


    assertEquals(0, query.count());
    assertEquals(0, query.list().size());
  }

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    caseService
      .withCaseExecution(processTaskId)
      .manualStart();


    // then
    HistoricProcessInstanceQuery query = historyService.createHistoricProcessInstanceQuery();


    query.processInstanceBusinessKey(businessKey);


    assertEquals(1, query.count());
    assertEquals(1, query.list().size());


    HistoricProcessInstance historicProcessInstance = query.singleResult();
    assertNotNull(historicProcessInstance);


    assertEquals(businessKey, historicProcessInstance.getBusinessKey());


  }

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  }


  @Override
  public List<HistoricProcessInstanceDto> queryHistoricProcessInstances(HistoricProcessInstanceQueryDto queryDto, Integer firstResult, Integer maxResults) {
    queryDto.setObjectMapper(objectMapper);
    HistoricProcessInstanceQuery query = queryDto.toQuery(processEngine);


    List<HistoricProcessInstance> matchingHistoricProcessInstances;
    if (firstResult != null || maxResults != null) {
      matchingHistoricProcessInstances = executePaginatedQuery(query, firstResult, maxResults);
    } else {
      matchingHistoricProcessInstances = query.list();
    }


    List<HistoricProcessInstanceDto> historicProcessInstanceDtoResults = new ArrayList<HistoricProcessInstanceDto>();
    for (HistoricProcessInstance historicProcessInstance : matchingHistoricProcessInstances) {
      HistoricProcessInstanceDto resultHistoricProcessInstanceDto = HistoricProcessInstanceDto.fromHistoricProcessInstance(historicProcessInstance);

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  }


  @Override
  public CountResultDto queryHistoricProcessInstancesCount(HistoricProcessInstanceQueryDto queryDto) {
    queryDto.setObjectMapper(objectMapper);
    HistoricProcessInstanceQuery query = queryDto.toQuery(processEngine);


    long count = query.count();
    CountResultDto result = new CountResultDto();
    result.setCount(count);


    return result;
  }

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org.camunda.bpm.engine.rest.impl.history.HistoricProcessInstanceRestServiceImpl

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