| /* |
| * 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.iotdb.confignode.persistence.partition; |
| |
| import org.apache.iotdb.common.rpc.thrift.TDataNodeLocation; |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| |
| import org.apache.thrift.TException; |
| import org.apache.thrift.protocol.TProtocol; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.nio.ByteBuffer; |
| import java.util.Objects; |
| |
| public abstract class RegionMaintainTask { |
| |
| protected final RegionMaintainType type; |
| protected TDataNodeLocation targetDataNode; |
| |
| public RegionMaintainTask(RegionMaintainType type) { |
| this.type = type; |
| } |
| |
| public RegionMaintainType getType() { |
| return type; |
| } |
| |
| public TDataNodeLocation getTargetDataNode() { |
| return targetDataNode; |
| } |
| |
| public void setTargetDataNode(TDataNodeLocation targetDataNode) { |
| this.targetDataNode = targetDataNode; |
| } |
| |
| // Serialize interface for consensus log |
| public abstract void serialize(DataOutputStream stream) throws IOException; |
| |
| // Deserialize interface for consensus log |
| protected abstract void deserialize(ByteBuffer buffer) throws IOException; |
| |
| // Serialize interface for snapshot |
| public abstract void serialize(OutputStream outputStream, TProtocol protocol) |
| throws IOException, TException; |
| |
| // Deserialize interface for snapshot |
| protected abstract void deserialize(InputStream inputStream, TProtocol protocol) |
| throws TException, IOException; |
| |
| public static class Factory { |
| |
| public static RegionMaintainTask create(ByteBuffer buffer) throws IOException { |
| int typeNum = buffer.getInt(); |
| if (typeNum >= RegionMaintainType.values().length) { |
| throw new IOException("Unrecognized RegionMaintainType: " + typeNum); |
| } |
| RegionMaintainTask task; |
| RegionMaintainType type = RegionMaintainType.values()[typeNum]; |
| switch (type) { |
| case CREATE: |
| task = new RegionCreateTask(); |
| break; |
| case DELETE: |
| task = new RegionDeleteTask(); |
| break; |
| default: |
| throw new IOException("Unrecognized RegionMaintainType: " + typeNum); |
| } |
| task.deserialize(buffer); |
| return task; |
| } |
| |
| public static RegionMaintainTask create(InputStream inputStream, TProtocol protocol) |
| throws IOException, TException { |
| int typeNum = ReadWriteIOUtils.readInt(inputStream); |
| if (typeNum >= RegionMaintainType.values().length) { |
| throw new IOException("Unrecognized RegionMaintainType: " + typeNum); |
| } |
| RegionMaintainTask task; |
| RegionMaintainType type = RegionMaintainType.values()[typeNum]; |
| switch (type) { |
| case CREATE: |
| task = new RegionCreateTask(); |
| break; |
| case DELETE: |
| task = new RegionDeleteTask(); |
| break; |
| default: |
| throw new IOException("Unrecognized RegionMaintainType: " + typeNum); |
| } |
| task.deserialize(inputStream, protocol); |
| return task; |
| } |
| |
| private Factory() { |
| // Empty constructor |
| } |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (!(o instanceof RegionMaintainTask)) return false; |
| RegionMaintainTask task = (RegionMaintainTask) o; |
| return type == task.type && targetDataNode.equals(task.targetDataNode); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(type, targetDataNode); |
| } |
| } |