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[IOTDB-3455] Make data_region_num takes effect in new standalone (apa…
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110 changes: 110 additions & 0 deletions
110
server/src/main/java/org/apache/iotdb/db/localconfignode/LocalDataPartitionInfo.java
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.iotdb.db.localconfignode; | ||
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| import org.apache.iotdb.commons.consensus.DataRegionId; | ||
| import org.apache.iotdb.commons.exception.IllegalPathException; | ||
| import org.apache.iotdb.commons.path.PartialPath; | ||
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| import java.util.Collections; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
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| // This class is used for data partition maintaining the map between storage group and | ||
| // dataRegionIds. | ||
| public class LocalDataPartitionInfo { | ||
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| // storageGroup -> LocalDataPartitionTable | ||
| private Map<PartialPath, LocalDataPartitionTable> partitionTableMap; | ||
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| private static class LocalDataPartitionTableHolder { | ||
| private static final LocalDataPartitionInfo INSTANCE = new LocalDataPartitionInfo(); | ||
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| private LocalDataPartitionTableHolder() {} | ||
| } | ||
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| private LocalDataPartitionInfo() {} | ||
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| public static LocalDataPartitionInfo getInstance() { | ||
| return LocalDataPartitionTableHolder.INSTANCE; | ||
| } | ||
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| public synchronized void init(Map<String, List<DataRegionId>> regionInfos) | ||
| throws IllegalPathException { | ||
| partitionTableMap = new ConcurrentHashMap<>(); | ||
| for (Map.Entry<String, List<DataRegionId>> entry : regionInfos.entrySet()) { | ||
| String storageGroupName = entry.getKey(); | ||
| List<DataRegionId> regionIds = entry.getValue(); | ||
| LocalDataPartitionTable table = new LocalDataPartitionTable(storageGroupName, regionIds); | ||
| partitionTableMap.put(new PartialPath(storageGroupName), table); | ||
| } | ||
| } | ||
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| public synchronized void clear() { | ||
| if (partitionTableMap != null) { | ||
| partitionTableMap.clear(); | ||
| partitionTableMap = null; | ||
| } | ||
| } | ||
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| public DataRegionId getDataRegionId(PartialPath storageGroup, PartialPath path) { | ||
| if (!partitionTableMap.containsKey(storageGroup)) { | ||
| return null; | ||
| } | ||
| LocalDataPartitionTable table = partitionTableMap.get(storageGroup); | ||
| return table.getDataRegionId(path); | ||
| } | ||
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| /** | ||
| * Try to allocate a data region for the new time partition slot. This function will try to create | ||
| * new data region to make expansion if the existing data regions meet some condition. | ||
| * | ||
| * @param storageGroup The path for the storage group. | ||
| * @param path The full path for the series. | ||
| * @return The data region id for the time partition slot. | ||
| */ | ||
| public DataRegionId allocateDataRegionForNewSlot(PartialPath storageGroup, PartialPath path) { | ||
| LocalDataPartitionTable table = partitionTableMap.get(storageGroup); | ||
| return table.getDataRegionWithAutoExtension(path); | ||
| } | ||
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| public List<DataRegionId> getDataRegionIdsByStorageGroup(PartialPath storageGroup) { | ||
| if (partitionTableMap.containsKey(storageGroup)) { | ||
| LocalDataPartitionTable partitionTable = partitionTableMap.get(storageGroup); | ||
| return partitionTable.getAllDataRegionId(); | ||
| } | ||
| return Collections.emptyList(); | ||
| } | ||
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| public synchronized void registerStorageGroup(PartialPath storageGroup) { | ||
| if (partitionTableMap.containsKey(storageGroup)) { | ||
| return; | ||
| } | ||
| partitionTableMap.put(storageGroup, new LocalDataPartitionTable(storageGroup.getFullPath())); | ||
| } | ||
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| public synchronized void deleteStorageGroup(PartialPath storageGroup) { | ||
| LocalDataPartitionTable partitionTable = partitionTableMap.remove(storageGroup); | ||
| if (partitionTable != null) { | ||
| partitionTable.clear(); | ||
| } | ||
| } | ||
| } |
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