io.wizzie.normalizer.funcs

Interface Function<R>

Type Parameters:

R - Return type parameter in process method

All Known Implementing Classes:

AndFilter, ArithmeticMapper, ArrayDecompositionMapper, ArrayFlattenMapper, ClassificationMapper, ContainsDimensionFilter, DiffCounterStoreMapper, FieldFilter, FieldMapper, FieldTypeConverterMapper, FilterFunc, FlatMapperFunction, FormatterFlatMapper, IsListFilter, IsStringFilter, JoinMapper, JqFlatMapper, LogMapper, MapperFunction, MapperStoreFunction, MaxValueMapper, MessagesMeanRateMapper, MinValueMapper, MultiValueFieldFilter, OrFilter, RegexMapper, RenameMapper, ReplaceMapper, SimpleArrayMapper, SimpleMapper, SplitterFlatMapper, StartWithFilter, StringReplaceMapper, StringSplitterMapper, TimeMapper

public interface Function<R>

Generic interface for definition of functions

Method Summary

Modifier and Type	Method and Description
void	init(Map<String,Object> properties, io.wizzie.metrics.MetricsManager metricsManager) Initialize function
void	prepare(Map<String,Object> properties, io.wizzie.metrics.MetricsManager metricsManager) Initialize function, this method is implemented by the users to for example: initiate variables, load config, open DB connections.
R	process(String key, Map<String,Object> value) Main logic of function
void	stop() Stop function, this method is implemented by the users to for example: close DB connection

Method Detail

init

void init(Map<String,Object> properties,
          io.wizzie.metrics.MetricsManager metricsManager)

Initialize function

Parameters:

properties - Properties for function

metricsManager - MetricsManager object for function

prepare

void prepare(Map<String,Object> properties,
             io.wizzie.metrics.MetricsManager metricsManager)

Initialize function, this method is implemented by the users to for example: initiate variables, load config, open DB connections.

Parameters:

properties - Properties for function

metricsManager - MetricsManager object for function

process

R process(String key,
          Map<String,Object> value)

Main logic of function

Parameters:

key - The key of Kafka message

value - The value of Kafka message

Returns:

Returned value

stop

void stop()

Stop function, this method is implemented by the users to for example: close DB connection