| package org.apache.helix.monitoring.mbeans; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import com.google.common.base.Joiner; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Lists; |
| |
| /** |
| * Implementation of the instance status bean |
| */ |
| public class InstanceMonitor implements InstanceMonitorMBean { |
| private final String _clusterName; |
| private final String _participantName; |
| private List<String> _tags; |
| private long _disabledPartitions; |
| private boolean _isUp; |
| private boolean _isEnabled; |
| private long _totalMessageReceived; |
| |
| /** |
| * Initialize the bean |
| * @param clusterName the cluster to monitor |
| * @param participantName the instance whose statistics this holds |
| */ |
| public InstanceMonitor(String clusterName, String participantName) { |
| _clusterName = clusterName; |
| _participantName = participantName; |
| _tags = ImmutableList.of(ClusterStatusMonitor.DEFAULT_TAG); |
| _disabledPartitions = 0L; |
| _isUp = false; |
| _isEnabled = false; |
| _totalMessageReceived = 0; |
| } |
| |
| @Override |
| public String getSensorName() { |
| return String.format("%s.%s.%s.%s", ClusterStatusMonitor.PARTICIPANT_STATUS_KEY, _clusterName, |
| serializedTags(), _participantName); |
| } |
| |
| @Override |
| public long getOnline() { |
| return _isUp ? 1 : 0; |
| } |
| |
| @Override |
| public long getEnabled() { |
| return _isEnabled ? 1 : 0; |
| } |
| |
| @Override |
| public long getTotalMessageReceived() { |
| return _totalMessageReceived; |
| } |
| |
| @Override |
| public long getDisabledPartitions() { |
| return _disabledPartitions; |
| } |
| |
| /** |
| * Get all the tags currently on this instance |
| * @return list of tags |
| */ |
| public List<String> getTags() { |
| return _tags; |
| } |
| |
| /** |
| * Get the name of the monitored instance |
| * @return instance name as a string |
| */ |
| public String getInstanceName() { |
| return _participantName; |
| } |
| |
| private String serializedTags() { |
| return Joiner.on('|').skipNulls().join(_tags).toString(); |
| } |
| |
| /** |
| * Update the gauges for this instance |
| * @param tags current tags |
| * @param disabledPartitions current disabled partitions |
| * @param isLive true if running, false otherwise |
| * @param isEnabled true if enabled, false if disabled |
| */ |
| public synchronized void updateInstance(Set<String> tags, |
| Map<String, List<String>> disabledPartitions, List<String> oldDisabledPartitions, |
| boolean isLive, boolean isEnabled) { |
| if (tags == null || tags.isEmpty()) { |
| _tags = ImmutableList.of(ClusterStatusMonitor.DEFAULT_TAG); |
| } else { |
| _tags = Lists.newArrayList(tags); |
| Collections.sort(_tags); |
| } |
| _disabledPartitions = 0L; |
| if (disabledPartitions != null) { |
| for (List<String> partitions : disabledPartitions.values()) { |
| if (partitions != null) { |
| _disabledPartitions += partitions.size(); |
| } |
| } |
| } |
| // TODO : Get rid of this when old API removed. |
| if (oldDisabledPartitions != null) { |
| _disabledPartitions += oldDisabledPartitions.size(); |
| } |
| _isUp = isLive; |
| _isEnabled = isEnabled; |
| } |
| |
| /** |
| * Increase message received for this instance |
| * @param messageReceived received message numbers |
| */ |
| public synchronized void increaseMessageCount(long messageReceived) { |
| _totalMessageReceived += messageReceived; |
| } |
| |
| } |