| /* |
| * 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.tsfile.file.metadata; |
| |
| import org.apache.iotdb.tsfile.file.IMetadataIndexEntry; |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.nio.ByteBuffer; |
| |
| public class DeviceMetadataIndexEntry implements IMetadataIndexEntry { |
| private IDeviceID deviceID; |
| private long offset; |
| |
| public DeviceMetadataIndexEntry(IDeviceID deviceID, long offset) { |
| this.deviceID = deviceID; |
| this.offset = offset; |
| } |
| |
| public IDeviceID getDeviceID() { |
| return deviceID; |
| } |
| |
| @Override |
| public long getOffset() { |
| return offset; |
| } |
| |
| public void setDeviceID(IDeviceID deviceID) { |
| this.deviceID = deviceID; |
| } |
| |
| @Override |
| public void setOffset(long offset) { |
| this.offset = offset; |
| } |
| |
| @Override |
| public int serializeTo(OutputStream outputStream) throws IOException { |
| int byteLen = 0; |
| byteLen += deviceID.serialize(outputStream); |
| byteLen += ReadWriteIOUtils.write(offset, outputStream); |
| return byteLen; |
| } |
| |
| @Override |
| public Comparable getCompareKey() { |
| return deviceID; |
| } |
| |
| @Override |
| public boolean isDeviceLevel() { |
| return true; |
| } |
| |
| public static DeviceMetadataIndexEntry deserializeFrom(ByteBuffer buffer) { |
| IDeviceID device = IDeviceID.deserializeFrom(buffer); |
| long offset = ReadWriteIOUtils.readLong(buffer); |
| return new DeviceMetadataIndexEntry(device, offset); |
| } |
| |
| public static DeviceMetadataIndexEntry deserializeFrom(InputStream inputStream) |
| throws IOException { |
| IDeviceID device = IDeviceID.deserializeFrom(inputStream); |
| long offset = ReadWriteIOUtils.readLong(inputStream); |
| return new DeviceMetadataIndexEntry(device, offset); |
| } |
| |
| @Override |
| public String toString() { |
| return "<" + deviceID + "," + offset + ">"; |
| } |
| } |