org.camunda.bpm.engine.impl.cfg.CompositeProcessEnginePlugin Java Examples

/**
 * Gets EventBus from given process engine via plugin.
 *
 * @param processEngine the process engine
 * @return the camunda eventBus
 */
public static CamundaEventBus eventBus(final ProcessEngine processEngine) {
  final ProcessEngineConfigurationImpl configuration = (ProcessEngineConfigurationImpl) processEngine.getProcessEngineConfiguration();
  final List<ProcessEnginePlugin> plugins = Optional.ofNullable(configuration.getProcessEnginePlugins()).orElse(Collections.EMPTY_LIST);

  final Function<List<ProcessEnginePlugin>, Optional<CamundaEventBus>> filterReactorPlugin = l -> l.stream()
    .filter(plugin -> plugin instanceof ReactorProcessEnginePlugin)
    .map(ReactorProcessEnginePlugin.class::cast)
    .map(ReactorProcessEnginePlugin::getEventBus)
    .findFirst();

  Optional<CamundaEventBus> reactorProcessEnginePlugin = filterReactorPlugin.apply(plugins);
  if (reactorProcessEnginePlugin.isPresent()) {
    return reactorProcessEnginePlugin.get();
  }

  return plugins.stream()
    .filter(plugin -> plugin instanceof CompositeProcessEnginePlugin)
    .map(CompositeProcessEnginePlugin.class::cast)
    .map(CompositeProcessEnginePlugin::getPlugins)
    .map(filterReactorPlugin)
    .flatMap(o -> o.map(Stream::of).orElseGet(Stream::empty))
    .findFirst()
    .orElseThrow(illegalState("No eventBus found. Make sure the Reactor plugin is configured correctly."));
}
 

@Test
public void get_eventBus_from_engine_composite() {
  final CamundaEventBus eventBus = new CamundaEventBus();
  ReactorProcessEnginePlugin plugin = new ReactorProcessEnginePlugin(eventBus);

  ReactorProcessEngineConfiguration configuration = new ReactorProcessEngineConfiguration(eventBus);
  configuration.getProcessEnginePlugins().clear();

  configuration.getProcessEnginePlugins().add(new CompositeProcessEnginePlugin(plugin));

  ProcessEngine engine = configuration.buildProcessEngine();

  try {
    assertThat(CamundaReactor.eventBus(engine)).isEqualTo(eventBus);

  } finally {
    engine.close();
  }
}
 

@Test
public void ensureSpinProcessEnginePluginIsCorrectlyLoaded() {
  // given
  List<ProcessEnginePlugin> plugins = processEngineConfiguration.getProcessEnginePlugins();
  List<TypedValueSerializer<?>> serializers = processEngineConfiguration.getVariableSerializers().getSerializers();

  if (plugins.get(0) instanceof CompositeProcessEnginePlugin) {
    plugins = ((CompositeProcessEnginePlugin) plugins.get(0)).getPlugins();
  }

  boolean isJacksonJsonDataFormat = serializers.stream().anyMatch(s ->
      s instanceof SpinObjectValueSerializer
      && s.getSerializationDataformat().equals("application/json"));

  // then
  assertThat(plugins.stream().anyMatch(plugin -> plugin instanceof SpinProcessEnginePlugin)).isTrue();
  assertThat(isJacksonJsonDataFormat).isTrue();
}
 

@Test
public void ensureSpinProcessEnginePluginIsCorrectlyLoaded() {
  // given
  List<ProcessEnginePlugin> plugins = processEngineConfiguration.getProcessEnginePlugins();
  List<TypedValueSerializer<?>> serializers = processEngineConfiguration.getVariableSerializers().getSerializers();

  if (plugins.get(0) instanceof CompositeProcessEnginePlugin) {
    plugins = ((CompositeProcessEnginePlugin) plugins.get(0)).getPlugins();
  }

  boolean isJacksonJsonDataFormat = serializers.stream().anyMatch(s ->
      s instanceof SpinObjectValueSerializer
      && s.getSerializationDataformat().equals("application/json"));

  // then
  assertThat(plugins.stream().anyMatch(plugin -> plugin instanceof SpinProcessEnginePlugin)).isTrue();
  assertThat(isJacksonJsonDataFormat).isTrue();
}
 

@Bean
@ConditionalOnMissingBean(ProcessEngineConfigurationImpl.class)
public ProcessEngineConfigurationImpl processEngineConfigurationImpl(
        List<ProcessEnginePlugin> processEnginePlugins) {

    log.info("configure process engine configuration impl,class={}",
            CustomSpringProcessEngineConfiguration.class.getName());
    final SpringProcessEngineConfiguration configuration = CamundaSpringBootUtil
            .initCustomFields(new CustomSpringProcessEngineConfiguration());
    configuration.getProcessEnginePlugins().add(new CompositeProcessEnginePlugin(processEnginePlugins));
    return configuration;
}
 

@Bean
@ConditionalOnMissingBean(ProcessEngineConfigurationImpl.class)
public ProcessEngineConfigurationImpl processEngineConfigurationImpl(List<ProcessEnginePlugin> processEnginePlugins) {
  final SpringProcessEngineConfiguration configuration = CamundaSpringBootUtil.springProcessEngineConfiguration();
  configuration.getProcessEnginePlugins().add(new CompositeProcessEnginePlugin(processEnginePlugins));
  return configuration;
}
 

@Test
public void processEngineConfigurationImplTest() {
  CamundaBpmConfiguration camundaBpmConfiguration = new CamundaBpmConfiguration();
  List<ProcessEnginePlugin> processEnginePlugins = createUnordedList();
  ProcessEngineConfigurationImpl processEngineConfigurationImpl = camundaBpmConfiguration.processEngineConfigurationImpl(processEnginePlugins);

  CompositeProcessEnginePlugin compositeProcessEnginePlugin = (CompositeProcessEnginePlugin) processEngineConfigurationImpl.getProcessEnginePlugins().get(0);
  assertThat(compositeProcessEnginePlugin.getPlugins()).isEqualTo(processEnginePlugins);
}
 

@Test
public void ensureConnectProcessEnginePluginIsCorrectlyLoaded() {
  // given
  List<ProcessEnginePlugin> plugins = processEngineConfiguration.getProcessEnginePlugins();

  if (plugins.get(0) instanceof CompositeProcessEnginePlugin) {
    plugins = ((CompositeProcessEnginePlugin) plugins.get(0)).getPlugins();
  }

  // then
  assertThat(plugins.stream().anyMatch(plugin -> plugin instanceof ConnectProcessEnginePlugin)).isTrue();
}
 

@Bean
@ConditionalOnMissingBean(ProcessEngineConfigurationImpl.class)
public ProcessEngineConfigurationImpl processEngineConfigurationImpl(List<ProcessEnginePlugin> processEnginePlugins) {
  final SpringProcessEngineConfiguration configuration = CamundaSpringBootUtil.springProcessEngineConfiguration();
  configuration.getProcessEnginePlugins().add(new CompositeProcessEnginePlugin(processEnginePlugins));
  return configuration;
}
 

@Test
public void processEngineConfigurationImplTest() {
  CamundaBpmConfiguration camundaBpmConfiguration = new CamundaBpmConfiguration();
  List<ProcessEnginePlugin> processEnginePlugins = createUnordedList();
  ProcessEngineConfigurationImpl processEngineConfigurationImpl = camundaBpmConfiguration.processEngineConfigurationImpl(processEnginePlugins);

  CompositeProcessEnginePlugin compositeProcessEnginePlugin = (CompositeProcessEnginePlugin) processEngineConfigurationImpl.getProcessEnginePlugins().get(0);
  assertThat(compositeProcessEnginePlugin.getPlugins()).isEqualTo(processEnginePlugins);
}
 

@Test
public void ensureConnectProcessEnginePluginIsCorrectlyLoaded() {
  // given
  List<ProcessEnginePlugin> plugins = processEngineConfiguration.getProcessEnginePlugins();

  if (plugins.get(0) instanceof CompositeProcessEnginePlugin) {
    plugins = ((CompositeProcessEnginePlugin) plugins.get(0)).getPlugins();
  }

  // then
  assertThat(plugins.stream().anyMatch(plugin -> plugin instanceof ConnectProcessEnginePlugin)).isTrue();
}
 

@Bean
public ProcessEngineConfigurationImpl processEngineConfigurationImpl(List<ProcessEnginePlugin> processEnginePlugins) {
  final SpringProcessEngineConfiguration configuration = new CamundaBpmRunProcessEngineConfiguration();
  configuration.getProcessEnginePlugins().add(new CompositeProcessEnginePlugin(processEnginePlugins));
  return configuration;
}