| /* |
| * 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.config; |
| |
| import groovy.lang.Closure; |
| import groovy.lang.GroovyShell; |
| import java.io.FileNotFoundException; |
| import java.io.Reader; |
| import java.util.HashMap; |
| import java.util.Map; |
| import lombok.Getter; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.skywalking.oap.server.core.CoreModuleConfig; |
| import org.apache.skywalking.oap.server.core.UnexpectedException; |
| import org.apache.skywalking.oap.server.core.analysis.Layer; |
| import org.apache.skywalking.oap.server.library.util.ResourceUtils; |
| import org.yaml.snakeyaml.Yaml; |
| |
| import static java.util.stream.Collectors.toMap; |
| |
| @Slf4j |
| public class HierarchyDefinitionService implements org.apache.skywalking.oap.server.library.module.Service { |
| |
| @Getter |
| private final Map<String, Map<String, MatchingRule>> hierarchyDefinition; |
| @Getter |
| private Map<String, Integer> layerLevels; |
| private Map<String, MatchingRule> matchingRules; |
| |
| public HierarchyDefinitionService(CoreModuleConfig moduleConfig) { |
| this.hierarchyDefinition = new HashMap<>(); |
| this.layerLevels = new HashMap<>(); |
| if (moduleConfig.isEnableHierarchy()) { |
| this.init(); |
| this.checkLayers(); |
| } |
| } |
| |
| @SuppressWarnings("unchecked") |
| private void init() { |
| try { |
| Reader applicationReader = ResourceUtils.read("hierarchy-definition.yml"); |
| Yaml yaml = new Yaml(); |
| Map<String, Map> config = yaml.loadAs(applicationReader, Map.class); |
| Map<String, Map<String, String>> hierarchy = (Map<String, Map<String, String>>) config.get("hierarchy"); |
| Map<String, String> matchingRules = (Map<String, String>) config.get("auto-matching-rules"); |
| this.layerLevels = (Map<String, Integer>) config.get("layer-levels"); |
| this.matchingRules = matchingRules.entrySet().stream().map(entry -> { |
| MatchingRule matchingRule = new MatchingRule(entry.getKey(), entry.getValue()); |
| return Map.entry(entry.getKey(), matchingRule); |
| }).collect(toMap(Map.Entry::getKey, Map.Entry::getValue)); |
| hierarchy.forEach((layer, lowerLayers) -> { |
| Map<String, MatchingRule> rules = new HashMap<>(); |
| lowerLayers.forEach((lowerLayer, ruleName) -> { |
| rules.put(lowerLayer, this.matchingRules.get(ruleName)); |
| }); |
| this.hierarchyDefinition.put(layer, rules); |
| }); |
| } catch (FileNotFoundException e) { |
| throw new UnexpectedException("hierarchy-definition.yml not found.", e); |
| } |
| } |
| |
| private void checkLayers() { |
| this.layerLevels.keySet().forEach(layer -> { |
| if (Layer.nameOf(layer).equals(Layer.UNDEFINED)) { |
| throw new IllegalArgumentException( |
| "hierarchy-definition.yml " + layer + " is not a valid layer name."); |
| } |
| }); |
| this.hierarchyDefinition.forEach((layer, lowerLayers) -> { |
| Integer layerLevel = this.layerLevels.get(layer); |
| if (this.layerLevels.get(layer) == null) { |
| throw new IllegalArgumentException( |
| "hierarchy-definition.yml layer-levels: " + layer + " is not defined"); |
| } |
| |
| for (String lowerLayer : lowerLayers.keySet()) { |
| Integer lowerLayerLevel = this.layerLevels.get(lowerLayer); |
| if (lowerLayerLevel == null) { |
| throw new IllegalArgumentException( |
| "hierarchy-definition.yml layer-levels: " + lowerLayer + " is not defined."); |
| } |
| if (layerLevel <= lowerLayerLevel) { |
| throw new IllegalArgumentException( |
| "hierarchy-definition.yml hierarchy: " + layer + " layer-level should be greater than " + lowerLayer + " layer-level."); |
| } |
| } |
| }); |
| } |
| |
| @Getter |
| public static class MatchingRule { |
| private final String name; |
| private final String expression; |
| private final Closure<Boolean> closure; |
| |
| @SuppressWarnings("unchecked") |
| public MatchingRule(final String name, final String expression) { |
| this.name = name; |
| this.expression = expression; |
| GroovyShell sh = new GroovyShell(); |
| closure = (Closure<Boolean>) sh.evaluate(expression); |
| } |
| } |
| } |