| /* |
| * 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.query; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.skywalking.oap.server.core.query.input.Duration; |
| import org.apache.skywalking.oap.server.core.query.input.MetricsCondition; |
| import org.apache.skywalking.oap.server.core.query.type.HeatMap; |
| import org.apache.skywalking.oap.server.core.query.type.MetricsValues; |
| import org.apache.skywalking.oap.server.core.storage.StorageModule; |
| import org.apache.skywalking.oap.server.core.storage.annotation.ValueColumnMetadata; |
| import org.apache.skywalking.oap.server.core.storage.query.IMetricsQueryDAO; |
| import org.apache.skywalking.oap.server.library.module.ModuleManager; |
| import org.apache.skywalking.oap.server.library.module.Service; |
| |
| @Slf4j |
| public class MetricsQueryService implements Service { |
| private final ModuleManager moduleManager; |
| private IMetricsQueryDAO metricQueryDAO; |
| |
| public MetricsQueryService(ModuleManager moduleManager) { |
| this.moduleManager = moduleManager; |
| } |
| |
| private IMetricsQueryDAO getMetricQueryDAO() { |
| if (metricQueryDAO == null) { |
| metricQueryDAO = moduleManager.find(StorageModule.NAME).provider().getService(IMetricsQueryDAO.class); |
| } |
| return metricQueryDAO; |
| } |
| |
| /** |
| * Read metrics single value in the duration of required metrics |
| */ |
| public long readMetricsValue(MetricsCondition condition, Duration duration) throws IOException { |
| return getMetricQueryDAO().readMetricsValue( |
| condition, ValueColumnMetadata.INSTANCE.getValueCName(condition.getName()), duration); |
| } |
| |
| /** |
| * Read time-series values in the duration of required metrics |
| */ |
| public MetricsValues readMetricsValues(MetricsCondition condition, Duration duration) throws IOException { |
| return getMetricQueryDAO().readMetricsValues( |
| condition, ValueColumnMetadata.INSTANCE.getValueCName(condition.getName()), duration); |
| } |
| |
| /** |
| * Read value in the given time duration, usually as a linear. |
| * |
| * @param labels the labels you need to query. |
| */ |
| public List<MetricsValues> readLabeledMetricsValues(MetricsCondition condition, |
| List<String> labels, |
| Duration duration) throws IOException { |
| return getMetricQueryDAO().readLabeledMetricsValues( |
| condition, ValueColumnMetadata.INSTANCE.getValueCName(condition.getName()), labels, duration); |
| } |
| |
| /** |
| * Heatmap is bucket based value statistic result. |
| */ |
| public HeatMap readHeatMap(MetricsCondition condition, Duration duration) throws IOException { |
| return getMetricQueryDAO().readHeatMap( |
| condition, ValueColumnMetadata.INSTANCE.getValueCName(condition.getName()), duration); |
| } |
| } |