com.netflix.control.clutch.SymptomDetector Maven / Gradle / Ivy
/*
* Copyright 2019 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.netflix.control.clutch;
import com.yahoo.sketches.quantiles.DoublesSketch;
import io.vavr.Tuple;
import io.vavr.Tuple2;
import io.vavr.collection.HashSet;
import io.vavr.collection.Set;
import java.util.List;
import java.util.function.Predicate;
/**
* TODO: This is completely experimental, not currently in use.
*/
public class SymptomDetector {
private final Set>>> symptoms = HashSet.empty();
public void registerDector(String symptom, Predicate> pred) {
symptoms.add(Tuple.of(symptom, pred));
}
public Set getSymptoms(List observations) {
return symptoms
.filter(tup -> tup._2.test(observations))
.map(tup -> tup._1);
}
}