io.wizzie.normalizer.funcs

Class FilterFunc

java.lang.Object

io.wizzie.normalizer.funcs.FilterFunc

All Implemented Interfaces:

Function<Boolean>, org.apache.kafka.streams.kstream.Predicate<String,Map<String,Object>>

Direct Known Subclasses:

AndFilter, ContainsDimensionFilter, FieldFilter, IsListFilter, IsStringFilter, MultiValueFieldFilter, OrFilter, StartWithFilter

public abstract class FilterFunc
extends Object
implements Function<Boolean>, org.apache.kafka.streams.kstream.Predicate<String,Map<String,Object>>

This class is used to implement filters, to keep out message from the streams. You can use this function on the sinks to filter specific messages to other stream or to send to kafka topic

Constructor Summary

Constructors

Constructor and Description
FilterFunc()

Method Summary

Modifier and Type	Method and Description
void	init(Map<String,Object> properties, io.wizzie.metrics.MetricsManager metricsManager) Initialize filter function
Boolean	match() Check __MATCH flag
boolean	test(String key, Map<String,Object> value) Filter a Key-Value Kafka message

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.wizzie.normalizer.funcs.Function

prepare, process, stop

Constructor Detail

FilterFunc

public FilterFunc()

Method Detail

init

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

Initialize filter function

Specified by:

init in interface Function<Boolean>

Parameters:

properties - Properties for filter function

metricsManager - MetricsManager to register custom metrics.

test

public boolean test(String key,
                    Map<String,Object> value)

Filter a Key-Value Kafka message

Specified by:

test in interface org.apache.kafka.streams.kstream.Predicate<String,Map<String,Object>>

Parameters:

key - The key of Kafka message

value - The value of kafka message

Returns:

True if filter match else return false.

match

public Boolean match()

Check __MATCH flag

Returns:

True if __MATCH is true or false else.