How to use

getRegisteredKryoTypes

method

in

org.apache.flink.api.common.ExecutionConfig

int registeredTypes = config.getRegisteredKryoTypes().size() +
    config.getRegisteredPojoTypes().size() +
    config.getRegisteredTypesWithKryoSerializerClasses().size() +
  LOG.debug("Registered Kryo types: {}", config.getRegisteredKryoTypes().toString());
  LOG.debug("Registered Kryo with Serializers types: {}", config.getRegisteredTypesWithKryoSerializers().entrySet().toString());
  LOG.debug("Registered Kryo with Serializer Classes types: {}", config.getRegisteredTypesWithKryoSerializerClasses().entrySet().toString());

public KryoSerializer(Class<T> type, ExecutionConfig executionConfig){
  this.type = checkNotNull(type);
  this.defaultSerializers = executionConfig.getDefaultKryoSerializers();
  this.defaultSerializerClasses = executionConfig.getDefaultKryoSerializerClasses();
  this.kryoRegistrations = buildKryoRegistrations(
      this.type,
      executionConfig.getRegisteredKryoTypes(),
      executionConfig.getRegisteredTypesWithKryoSerializerClasses(),
      executionConfig.getRegisteredTypesWithKryoSerializers());
}

@Test
public void testDoubleTypeRegistration() {
  ExecutionConfig config = new ExecutionConfig();
  List<Class<?>> types = Arrays.<Class<?>>asList(Double.class, Integer.class, Double.class);
  List<Class<?>> expectedTypes = Arrays.<Class<?>>asList(Double.class, Integer.class);
  for (Class<?> tpe: types) {
    config.registerKryoType(tpe);
  }
  int counter = 0;
  for (Class<?> tpe: config.getRegisteredKryoTypes()){
    assertEquals(tpe, expectedTypes.get(counter++));
  }
  assertEquals(expectedTypes.size(), counter);
}

@Test
public void testGroupByGenericType() throws Exception {
  /*
   * Group by generic type
   */
  final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
  env.setParallelism(1);
  DataSet<CollectionDataSets.PojoWithCollection> ds = CollectionDataSets.getPojoWithCollection(env);
  // f0.f0 is first integer
  DataSet<String> reduceDs = ds.groupBy("bigInt")
      .reduceGroup(new GroupReducer8());
  List<String> result = reduceDs.collect();
  ExecutionConfig ec = env.getConfig();
  // check if automatic type registration with Kryo worked
  Assert.assertTrue(ec.getRegisteredKryoTypes().contains(BigInt.class));
  Assert.assertFalse(ec.getRegisteredKryoTypes().contains(java.sql.Date.class));
  String expected = null;
  String localExpected = "[call\n" +
      "For key 92233720368547758070 we got:\n" +
      "PojoWithCollection{pojos.size()=2, key=0, sqlDate=2033-05-18, bigInt=92233720368547758070, bigDecimalKeepItNull=null, scalaBigInt=10, mixed=[{someKey=1}, /this/is/wrong, uhlala]}\n" +
      "For key 92233720368547758070 we got:\n" +
      "PojoWithCollection{pojos.size()=2, key=0, sqlDate=1976-05-03, bigInt=92233720368547758070, bigDecimalKeepItNull=null, scalaBigInt=31104000, mixed=null}]";
  Assert.assertEquals(localExpected, result.toString());
}

Assert.assertTrue(ec.getRegisteredKryoTypes().contains(Fixed16.class));

public FlinkSerializerFactory(ExecutionConfig conf) {
 serializers = instantiateSerializers(
   conf.getRegisteredTypesWithKryoSerializerClasses());
 serializers.putAll(instantiateSerializers(
   conf.getDefaultKryoSerializerClasses()));
 serializers.putAll(conf.getDefaultKryoSerializers());
 serializers.putAll(conf.getRegisteredTypesWithKryoSerializers());
 registeredClasses = new HashSet<>(conf.getRegisteredKryoTypes());
 registeredClasses.addAll(conf.getRegisteredPojoTypes());
}

int registeredTypes = config.getRegisteredKryoTypes().size() +
    config.getRegisteredPojoTypes().size() +
    config.getRegisteredTypesWithKryoSerializerClasses().size() +
  LOG.debug("Registered Kryo types: {}", config.getRegisteredKryoTypes().toString());
  LOG.debug("Registered Kryo with Serializers types: {}", config.getRegisteredTypesWithKryoSerializers().entrySet().toString());
  LOG.debug("Registered Kryo with Serializer Classes types: {}", config.getRegisteredTypesWithKryoSerializerClasses().entrySet().toString());

int registeredTypes = config.getRegisteredKryoTypes().size() +
    config.getRegisteredPojoTypes().size() +
    config.getRegisteredTypesWithKryoSerializerClasses().size() +
  LOG.debug("Registered Kryo types: {}", config.getRegisteredKryoTypes().toString());
  LOG.debug("Registered Kryo with Serializers types: {}", config.getRegisteredTypesWithKryoSerializers().entrySet().toString());
  LOG.debug("Registered Kryo with Serializer Classes types: {}", config.getRegisteredTypesWithKryoSerializerClasses().entrySet().toString());

int registeredTypes = config.getRegisteredKryoTypes().size() +
    config.getRegisteredPojoTypes().size() +
    config.getRegisteredTypesWithKryoSerializerClasses().size() +
  LOG.debug("Registered Kryo types: {}", config.getRegisteredKryoTypes().toString());
  LOG.debug("Registered Kryo with Serializers types: {}", config.getRegisteredTypesWithKryoSerializers().entrySet().toString());
  LOG.debug("Registered Kryo with Serializer Classes types: {}", config.getRegisteredTypesWithKryoSerializerClasses().entrySet().toString());

public KryoSerializer(Class<T> type, ExecutionConfig executionConfig){
  this.type = checkNotNull(type);
  this.defaultSerializers = executionConfig.getDefaultKryoSerializers();
  this.defaultSerializerClasses = executionConfig.getDefaultKryoSerializerClasses();
  this.kryoRegistrations = buildKryoRegistrations(
      this.type,
      executionConfig.getRegisteredKryoTypes(),
      executionConfig.getRegisteredTypesWithKryoSerializerClasses(),
      executionConfig.getRegisteredTypesWithKryoSerializers());
}

public KryoSerializer(Class<T> type, ExecutionConfig executionConfig){
  this.type = checkNotNull(type);
  this.defaultSerializers = executionConfig.getDefaultKryoSerializers();
  this.defaultSerializerClasses = executionConfig.getDefaultKryoSerializerClasses();
  this.kryoRegistrations = buildKryoRegistrations(
      this.type,
      executionConfig.getRegisteredKryoTypes(),
      executionConfig.getRegisteredTypesWithKryoSerializerClasses(),
      executionConfig.getRegisteredTypesWithKryoSerializers());
}