| /* |
| * 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.ambari.metrics.adservice.metadata |
| |
| import javax.xml.bind.annotation.XmlRootElement |
| |
| import org.apache.ambari.metrics.adservice.metadata.MetricSourceDefinitionType.MetricSourceDefinitionType |
| import org.apache.ambari.metrics.adservice.model.AnomalyType.AnomalyType |
| |
| import com.fasterxml.jackson.databind.ObjectMapper |
| import com.fasterxml.jackson.module.scala.DefaultScalaModule |
| import com.fasterxml.jackson.module.scala.experimental.ScalaObjectMapper |
| |
| /* |
| { |
| "definition-name": "host-memory", |
| "app-id" : "HOST", |
| "hosts" : [“c6401.ambari.apache.org”], |
| "metric-definitions" : [ |
| { |
| "metric-name": "mem_free", |
| "metric-description" : "Free memory on a Host.", |
| "troubleshooting-info" : "Sudden drop / hike in free memory on a host.", |
| "static-threshold" : 10, |
| “app-id” : “HOST” |
| } ], |
| |
| "related-definition-names" : ["host-cpu", “host-network”], |
| “anomaly-detection-subsystems” : [“point-in-time”, “trend”] |
| } |
| */ |
| |
| /* |
| |
| On Startup |
| Read input definitions directory, parse the JSONs |
| Create / Update the metric definitions in DB |
| Convert metric definitions to Map<MetricKey, MetricDefinition> |
| |
| What to do want to have in memory? |
| Map of Metric Key -> List<Component Definitions> |
| |
| What do we use metric definitions for? |
| Anomaly GET - Associate definition information as well. |
| Definition CRUD - Get definition given definition name |
| Get set of metrics that are being tracked |
| Return definition information for a metric key |
| Given a metric definition name, return set of metrics. |
| |
| */ |
| |
| @XmlRootElement |
| class MetricSourceDefinition { |
| |
| var definitionName: String = _ |
| var appId: String = _ |
| var definitionSource: MetricSourceDefinitionType = MetricSourceDefinitionType.CONFIG |
| var hosts: List[String] = List.empty[String] |
| var relatedDefinitions: List[String] = List.empty[String] |
| var associatedAnomalySubsystems: List[AnomalyType] = List.empty[AnomalyType] |
| |
| var metricDefinitions: scala.collection.mutable.MutableList[MetricDefinition] = |
| scala.collection.mutable.MutableList.empty[MetricDefinition] |
| |
| def this(definitionName: String, appId: String, source: MetricSourceDefinitionType) = { |
| this |
| this.definitionName = definitionName |
| this.appId = appId |
| this.definitionSource = source |
| } |
| |
| def addMetricDefinition(metricDefinition: MetricDefinition): Unit = { |
| if (!metricDefinitions.contains(metricDefinition)) { |
| metricDefinitions.+=(metricDefinition) |
| } |
| } |
| |
| def removeMetricDefinition(metricDefinition: MetricDefinition): Unit = { |
| metricDefinitions = metricDefinitions.filter(_ != metricDefinition) |
| } |
| |
| @Override |
| override def equals(obj: scala.Any): Boolean = { |
| |
| if (obj == null) { |
| return false |
| } |
| val that = obj.asInstanceOf[MetricSourceDefinition] |
| definitionName.equals(that.definitionName) |
| } |
| } |
| |
| object MetricSourceDefinition { |
| val mapper = new ObjectMapper() with ScalaObjectMapper |
| mapper.registerModule(DefaultScalaModule) |
| |
| def serialize(definition: MetricSourceDefinition) : String = { |
| mapper.writeValueAsString(definition) |
| } |
| |
| def deserialize(definitionString: String) : MetricSourceDefinition = { |
| mapper.readValue[MetricSourceDefinition](definitionString) |
| } |
| } |