| package org.apache.helix.spectator; |
| |
| /* |
| * 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.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import org.apache.helix.PropertyType; |
| import org.apache.helix.model.CustomizedView; |
| import org.apache.helix.model.ExternalView; |
| import org.apache.helix.model.InstanceConfig; |
| import org.apache.helix.model.LiveInstance; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class CustomizedViewRoutingTable extends RoutingTable { |
| private static final Logger logger = LoggerFactory.getLogger(CustomizedViewRoutingTable.class); |
| |
| private final Collection<CustomizedView> _customizedViews; |
| /* |
| * The customizedStateType field is the type the controller is aggregating. |
| * For example if RoutingTableProvider initialized using the code below: |
| * Map<PropertyType, List<String>> sourceDataTypes = new HashMap<>(); |
| * sourceDataTypes.put(PropertyType.CUSTOMIZEDVIEW, Arrays.asList("typeA", "typeB")); |
| * RoutingTableProvider routingTableProvider = |
| * new RoutingTableProvider(_spectator, sourceDataTypes); |
| * Each one of the TypeA and TypeB is a customizedStateType. |
| */ |
| private final String _customizedStateType; |
| |
| public CustomizedViewRoutingTable(PropertyType propertyType, String customizedStateType) { |
| this(Collections.<CustomizedView> emptyList(), propertyType, customizedStateType); |
| } |
| |
| protected CustomizedViewRoutingTable(Collection<CustomizedView> customizedViews, |
| PropertyType propertytype, String customizedStateType) { |
| this(customizedViews, Collections.<InstanceConfig> emptyList(), |
| Collections.<LiveInstance> emptyList(), propertytype, customizedStateType); |
| } |
| |
| protected CustomizedViewRoutingTable(Collection<CustomizedView> customizedViews, |
| Collection<InstanceConfig> instanceConfigs, Collection<LiveInstance> liveInstances, |
| PropertyType propertytype, String customizedStateType) { |
| super(Collections.<ExternalView> emptyList(), instanceConfigs, liveInstances, |
| PropertyType.CUSTOMIZEDVIEW); |
| _customizedStateType = customizedStateType; |
| _customizedViews = new HashSet<>(customizedViews); |
| refresh(_customizedViews); |
| } |
| |
| private void refresh(Collection<CustomizedView> customizedViewList) { |
| Map<String, InstanceConfig> instanceConfigMap = new HashMap<>(); |
| if (customizedViewList != null && !customizedViewList.isEmpty()) { |
| for (InstanceConfig config : _instanceConfigs) { |
| instanceConfigMap.put(config.getId(), config); |
| } |
| for (CustomizedView customizeView : customizedViewList) { |
| String resourceName = customizeView.getId(); |
| for (String partitionName : customizeView.getPartitionSet()) { |
| Map<String, String> stateMap = customizeView.getStateMap(partitionName); |
| for (String instanceName : stateMap.keySet()) { |
| String customizedState = stateMap.get(instanceName); |
| if (instanceConfigMap.containsKey(instanceName)) { |
| InstanceConfig instanceConfig = instanceConfigMap.get(instanceName); |
| addEntry(resourceName, partitionName, customizedState, instanceConfig); |
| } else { |
| logger.warn( |
| "Participant {} is not found with proper configuration information. It might already be removed from the cluster. " |
| + "Skip recording partition assignment entry: Partition {}, Participant {}, State {}.", |
| instanceName, partitionName, instanceName, stateMap.get(instanceName)); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Returns CustomizedView. |
| * @return a collection of CustomizedView |
| */ |
| protected Collection<CustomizedView> geCustomizedViews() { |
| return Collections.unmodifiableCollection(_customizedViews); |
| } |
| |
| /** |
| * Returns CustomizedStateType |
| * @return the CustomizedStateType of this RoutingTable (Used for CustomizedView) |
| */ |
| protected String getStateType() { |
| return _customizedStateType; |
| } |
| } |