| /* |
| * 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.samza.metrics.reporter |
| |
| import java.util.{Collections, HashMap, Map} |
| import scala.collection.JavaConverters._ |
| |
| object Metrics { |
| def fromMap(map: Map[String, Map[String, Object]]): Metrics = { |
| new Metrics(map) |
| } |
| } |
| |
| /** |
| * Immutable metrics snapshot. |
| */ |
| class Metrics(metrics: Map[String, Map[String, Object]]) { |
| val immutableMetrics = new HashMap[String, Map[String, Object]] |
| |
| for ((groupKey, groupValue) <- metrics.asScala) { |
| val immutableMetricGroup = new HashMap[String, Object] |
| |
| for ((metricKey, metricValue) <- groupValue.asScala) { |
| immutableMetricGroup.put(metricKey, metricValue) |
| } |
| |
| immutableMetrics.put(groupKey, Collections.unmodifiableMap(immutableMetricGroup)) |
| } |
| |
| def get[T](group: String, metricName: String) = |
| immutableMetrics.get(group).get(metricName).asInstanceOf[T] |
| |
| def get(group: String) = immutableMetrics.get(group) |
| |
| def getAsMap(): Map[String, Map[String, Object]] = Collections.unmodifiableMap(immutableMetrics) |
| |
| // default constructor to enable deserialization by MetricsSnapshotSerdeV2 |
| def this() { |
| this(new HashMap[String, Map[String, Object]]()) |
| } |
| } |