public void FunctionKeyValueMapper()
{
Func <string, int, int> mapper = (k, v) => k.Length;
var wrap = new WrappedKeyValueMapper <string, int, int>(mapper);
Assert.AreEqual(4, wrap.Apply("test", 12));
}
private ProcessorGraphNode <K, V> InternalSelectKey <KR>(IKeyValueMapper <K, V, KR> mapper, string named = null)
{
var name = new Named(named).OrElseGenerateWithPrefix(this.builder, KEY_SELECT_NAME);
WrappedKeyValueMapper <K, V, KeyValuePair <KR, V> > internalMapper =
new WrappedKeyValueMapper <K, V, KeyValuePair <KR, V> >(
(key, value) => new KeyValuePair <KR, V>(mapper.Apply(key, value), value));
KStreamMap <K, V, KR, V> kStreamMap = new KStreamMap <K, V, KR, V>(internalMapper);
ProcessorParameters <K, V> processorParameters = new ProcessorParameters <K, V>(kStreamMap, name);
return(new ProcessorGraphNode <K, V>(name, processorParameters));
}
