ambari-metrics-anomaly-detection-service/src/main/scala/org/apache/ambari/metrics/adservice/metadata/MetricDefinition.scala

/**
  * 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

/*
   {
       "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”
}
 */

case class MetricDefinition (metricName: String,
                             appId: String,
                             hosts: List[String],
                             metricDescription: String,
                             troubleshootingInfo: String,
                             staticThreshold: Double)  {

  @Override
  override def equals(obj: scala.Any): Boolean = {

    if (obj == null || (getClass ne obj.getClass))
      return false

    val that = obj.asInstanceOf[MetricDefinition]

    if (!(metricName == that.metricName))
      return false

    if (!(appId == that.appId))
      return false

    true
  }
}

object MetricDefinition {

  def apply(metricName: String,
            appId: String,
            hosts: List[String],
            metricDescription: String,
            troubleshootingInfo: String,
            staticThreshold: Double): MetricDefinition =
    new MetricDefinition(metricName, appId, hosts, metricDescription, troubleshootingInfo, staticThreshold)

  def apply(metricName: String, appId: String, hosts: List[String]): MetricDefinition =
    new MetricDefinition(metricName, appId, hosts, null, null, -1)

}