| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.skywalking.oap.meter.analyzer.dsl; |
| |
| import com.google.common.collect.ImmutableMap; |
| import io.vavr.Function2; |
| import io.vavr.Tuple2; |
| import java.time.Duration; |
| import java.util.function.Function; |
| import lombok.Builder; |
| import lombok.EqualsAndHashCode; |
| import lombok.Getter; |
| import lombok.ToString; |
| import org.apache.skywalking.oap.meter.analyzer.dsl.counter.CounterWindow; |
| |
| /** |
| * Sample represents the metric data point in a range of time. |
| */ |
| @Builder(toBuilder = true) |
| @EqualsAndHashCode |
| @ToString |
| @Getter |
| public class Sample { |
| final String name; |
| final ImmutableMap<String, String> labels; |
| final double value; |
| final long timestamp; |
| |
| Sample newValue(Function<Double, Double> transform) { |
| return toBuilder().value(transform.apply(value)).build(); |
| } |
| |
| Sample increase(String range, Function2<Double, Long, Double> transform) { |
| Tuple2<Long, Double> i = CounterWindow.INSTANCE.increase(name, labels, value, Duration.parse(range).toMillis(), timestamp); |
| double nv = transform.apply(i._2, i._1); |
| return newValue(ignored -> nv); |
| } |
| |
| Sample increase(Function2<Double, Long, Double> transform) { |
| Tuple2<Long, Double> i = CounterWindow.INSTANCE.pop(name, labels, value, timestamp); |
| double nv = transform.apply(i._2, i._1); |
| return newValue(ignored -> nv); |
| } |
| } |