| /* |
| * 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.system |
| |
| import org.apache.samza.metrics.MetricsRegistryMap |
| import org.apache.samza.metrics.Counter |
| import org.apache.samza.metrics.MetricsHelper |
| import org.apache.samza.metrics.ReadableMetricsRegistry |
| |
| class SystemConsumersMetrics(val registry: ReadableMetricsRegistry = new MetricsRegistryMap, |
| val prefix: String = "") extends MetricsHelper { |
| val choseNull = newCounter("chose-null") |
| val choseObject = newCounter("chose-object") |
| val deserializationError = newCounter("deserialization error") |
| val systemPolls = scala.collection.mutable.Map[String, Counter]() |
| val systemStreamPartitionFetchesPerPoll = scala.collection.mutable.Map[String, Counter]() |
| val systemMessagesPerPoll = scala.collection.mutable.Map[String, Counter]() |
| val systemStreamMessagesChosen = scala.collection.mutable.Map[SystemStreamPartition, Counter]() |
| val pollNs = newTimer("poll-ns") |
| val deserializationNs = newTimer("deserialization-ns") |
| |
| def setNeededByChooser(getValue: () => Int) { |
| newGauge("ssps-needed-by-chooser", getValue) |
| } |
| |
| def setTimeout(getValue: () => Long) { |
| newGauge("poll-timeout", getValue) |
| } |
| |
| def setUnprocessedMessages(getValue: () => Int) { |
| newGauge("unprocessed-messages", getValue) |
| } |
| |
| def registerSystem(systemName: String) { |
| if (!systemPolls.contains(systemName)) { |
| systemPolls += systemName -> newCounter("%s-polls" format systemName) |
| systemStreamPartitionFetchesPerPoll += systemName -> newCounter("%s-ssp-fetches-per-poll" format systemName) |
| systemMessagesPerPoll += systemName -> newCounter("%s-messages-per-poll" format systemName) |
| } |
| } |
| |
| override def getPrefix: String = prefix |
| |
| def registerSystemStreamPartition(systemStreamPartition: SystemStreamPartition) { |
| systemStreamMessagesChosen += systemStreamPartition -> newCounter("%s-%s-%d-messages-chosen" format (systemStreamPartition.getSystem, systemStreamPartition.getStream, systemStreamPartition.getPartition.getPartitionId)) |
| } |
| } |