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Refactor last flush time management (apache#11946)
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50 changes: 50 additions & 0 deletions
50
...anode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/DeviceLastFlushTime.java
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|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| /* | ||
| * 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.storageengine.dataregion; | ||
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| import java.util.HashMap; | ||
| import java.util.Map; | ||
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| public class DeviceLastFlushTime implements ILastFlushTime { | ||
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| Map<String, Long> deviceLastFlushTimeMap = new HashMap<>(); | ||
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| @Override | ||
| public long getLastFlushTime(String deviceId) { | ||
| if (deviceLastFlushTimeMap.containsKey(deviceId)) { | ||
| return deviceLastFlushTimeMap.get(deviceId); | ||
| } | ||
| return Long.MIN_VALUE; | ||
| } | ||
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| @Override | ||
| public void updateLastFlushTime(String deviceId, long time) { | ||
| deviceLastFlushTimeMap.merge(deviceId, time, Math::max); | ||
| } | ||
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| @Override | ||
| public ILastFlushTime degradeLastFlushTime() { | ||
| long maxTime = Long.MIN_VALUE; | ||
| for (long time : deviceLastFlushTimeMap.values()) { | ||
| maxTime = Math.max(maxTime, time); | ||
| } | ||
| return new PartitionLastFlushTime(maxTime); | ||
| } | ||
| } |
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29 changes: 29 additions & 0 deletions
29
...e/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/ILastFlushTime.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,29 @@ | ||
| /* | ||
| * 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.storageengine.dataregion; | ||
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| public interface ILastFlushTime { | ||
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| long getLastFlushTime(String device); | ||
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| void updateLastFlushTime(String device, long time); | ||
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| ILastFlushTime degradeLastFlushTime(); | ||
| } |
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44 changes: 44 additions & 0 deletions
44
...de/src/main/java/org/apache/iotdb/db/storageengine/dataregion/PartitionLastFlushTime.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| /* | ||
| * 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.storageengine.dataregion; | ||
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| public class PartitionLastFlushTime implements ILastFlushTime { | ||
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| private long partitionLastFlushTime; | ||
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| public PartitionLastFlushTime(long initPartitionLastFlushTime) { | ||
| this.partitionLastFlushTime = initPartitionLastFlushTime; | ||
| } | ||
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| @Override | ||
| public long getLastFlushTime(String device) { | ||
| return partitionLastFlushTime; | ||
| } | ||
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| @Override | ||
| public void updateLastFlushTime(String device, long time) { | ||
| partitionLastFlushTime = Math.max(partitionLastFlushTime, time); | ||
| } | ||
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| @Override | ||
| public ILastFlushTime degradeLastFlushTime() { | ||
| return this; | ||
| } | ||
| } |
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