| /* |
| * 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.server.core.analysis.indicator; |
| |
| import lombok.Getter; |
| import lombok.Setter; |
| import org.apache.skywalking.oap.server.core.analysis.indicator.annotation.ConstOne; |
| import org.apache.skywalking.oap.server.core.analysis.indicator.annotation.Entrance; |
| import org.apache.skywalking.oap.server.core.analysis.indicator.annotation.IndicatorOperator; |
| import org.apache.skywalking.oap.server.core.analysis.indicator.annotation.SourceFrom; |
| import org.apache.skywalking.oap.server.core.storage.annotation.Column; |
| |
| /** |
| * @author peng-yongsheng |
| */ |
| @IndicatorOperator |
| public abstract class DoubleAvgIndicator extends Indicator { |
| |
| protected static final String SUMMATION = "summation"; |
| protected static final String COUNT = "count"; |
| protected static final String VALUE = "value"; |
| |
| @Getter @Setter @Column(columnName = SUMMATION) private double summation; |
| @Getter @Setter @Column(columnName = COUNT) private int count; |
| @Getter @Setter @Column(columnName = VALUE) private double value; |
| |
| @Entrance |
| public final void combine(@SourceFrom double summation, @ConstOne int count) { |
| this.summation += summation; |
| this.count += count; |
| } |
| |
| @Override public final void combine(Indicator indicator) { |
| DoubleAvgIndicator longAvgIndicator = (DoubleAvgIndicator)indicator; |
| combine(longAvgIndicator.summation, longAvgIndicator.count); |
| } |
| } |