43 lines
1.2 KiB
C#
43 lines
1.2 KiB
C#
using System;
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using System.IO;
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using Best.HTTP.Shared.Databases.Utils;
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namespace Best.HTTP.Shared.Databases
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{
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public abstract class Metadata
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{
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public int Index;
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public int FilePosition;
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public int Length;
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public bool IsDeleted => this.FilePosition == -1 && this.Length == -1;
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public void MarkForDelete()
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{
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this.FilePosition = -1;
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this.Length = -1;
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}
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public virtual void SaveTo(Stream stream)
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{
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if (this.IsDeleted)
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throw new Exception($"Trying to save a deleted metadata({this.ToString()})!");
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stream.EncodeUnsignedVariableByteInteger((uint)this.FilePosition);
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stream.EncodeUnsignedVariableByteInteger((uint)this.Length);
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}
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public virtual void LoadFrom(Stream stream)
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{
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this.FilePosition = (int)stream.DecodeUnsignedVariableByteInteger();
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this.Length = (int)stream.DecodeUnsignedVariableByteInteger();
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}
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public override string ToString()
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{
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return $"[Metadata Idx: {Index}, Pos: {FilePosition}, Length: {Length}, IsDeleted: {IsDeleted}]";
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}
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}
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}
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