| /* |
| * 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.Collections; |
| import java.util.List; |
| import java.util.OptionalDouble; |
| 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.KVInt; |
| import org.apache.skywalking.oap.server.core.query.type.KeyValue; |
| import org.apache.skywalking.oap.server.core.query.type.MetricsValues; |
| import org.apache.skywalking.oap.server.core.query.type.NullableValue; |
| import org.apache.skywalking.oap.server.core.query.type.debugging.DebuggingSpan; |
| import org.apache.skywalking.oap.server.core.query.type.debugging.DebuggingTraceContext; |
| 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; |
| |
| import static org.apache.skywalking.oap.server.core.query.type.debugging.DebuggingTrace.TRACE_CONTEXT; |
| |
| @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 average value in the duration of required metrics |
| */ |
| public NullableValue readMetricsValue(MetricsCondition condition, Duration duration) throws IOException { |
| long defaultValue = ValueColumnMetadata.INSTANCE.getDefaultValue(condition.getName()); |
| if (!condition.senseScope() || !condition.getEntity().isValid()) { |
| return new NullableValue(defaultValue, true); |
| } |
| MetricsValues metricsValues = readMetricsValues(condition, duration); |
| if (!metricsValues.getValues().getValues().isEmpty()) { |
| OptionalDouble avgValue = metricsValues.getValues().getValues().stream().filter(v -> !v.isEmptyValue()).mapToLong( |
| KVInt::getValue).average(); |
| if (avgValue.isPresent()) { |
| return new NullableValue((long) avgValue.getAsDouble(), false); |
| } |
| } |
| |
| return new NullableValue(defaultValue, true); |
| } |
| |
| private MetricsValues invokeReadMetricsValues(MetricsCondition condition, Duration duration) throws IOException { |
| if (!condition.senseScope() || !condition.getEntity().isValid()) { |
| return new MetricsValues(); |
| } |
| return getMetricQueryDAO().readMetricsValues( |
| 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 { |
| DebuggingTraceContext traceContext = TRACE_CONTEXT.get(); |
| DebuggingSpan span = null; |
| try { |
| if (traceContext != null) { |
| span = traceContext.createSpan("Query Service"); |
| span.setMsg("readMetricsValues, MetricsCondition: " + condition + ", Duration: " + duration); |
| } |
| return invokeReadMetricsValues(condition, duration); |
| } finally { |
| if (traceContext != null && span != null) { |
| traceContext.stopSpan(span); |
| } |
| } |
| } |
| |
| private List<MetricsValues> invokeReadLabeledMetricsValues(MetricsCondition condition, |
| List<KeyValue> labels, |
| Duration duration) throws IOException { |
| if (!condition.senseScope() || !condition.getEntity().isValid()) { |
| return Collections.emptyList(); |
| } |
| return getMetricQueryDAO().readLabeledMetricsValues( |
| condition, ValueColumnMetadata.INSTANCE.getValueCName(condition.getName()), labels, 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<KeyValue> labels, |
| Duration duration) throws IOException { |
| DebuggingTraceContext traceContext = TRACE_CONTEXT.get(); |
| DebuggingSpan span = null; |
| try { |
| if (traceContext != null) { |
| span = traceContext.createSpan("Query Service"); |
| span.setMsg("readLabeledMetricsValues, MetricsCondition: " + condition + ", Labels: " + labels + ", Duration: " + duration); |
| } |
| return invokeReadLabeledMetricsValues(condition, labels, duration); |
| } finally { |
| if (traceContext != null && span != null) { |
| traceContext.stopSpan(span); |
| } |
| } |
| } |
| |
| public List<MetricsValues> readLabeledMetricsValuesWithoutEntity(String metricsName, |
| List<KeyValue> labels, |
| Duration duration) throws IOException { |
| return getMetricQueryDAO().readLabeledMetricsValuesWithoutEntity(metricsName, ValueColumnMetadata.INSTANCE.getValueCName(metricsName), labels, duration); |
| } |
| |
| /** |
| * Heatmap is bucket based value statistic result. |
| */ |
| public HeatMap readHeatMap(MetricsCondition condition, Duration duration) throws IOException { |
| if (!condition.senseScope() || !condition.getEntity().isValid()) { |
| return new HeatMap(); |
| } |
| return getMetricQueryDAO().readHeatMap( |
| condition, ValueColumnMetadata.INSTANCE.getValueCName(condition.getName()), duration); |
| } |
| } |