Mega Code Archive
Append various data types to byte array
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace tera.commons.utils
{
public class PackageBuilder
{
private byte[] buffer = new byte[] { };
public PackageBuilder appendBytes(byte[] bytes)
{
int i = buffer.Length;
Array.Resize<byte>(ref buffer, i + bytes.Length);
bytes.CopyTo(buffer, i);
return this;
}
public PackageBuilder appendBytesValue(byte[] bytes)
{
int i = buffer.Length;
Array.Resize<byte>(ref buffer, i + bytes.Length + 4);
byte[] lengthBytes = BitConverter.GetBytes(bytes.Length);
if (BitConverter.IsLittleEndian)
Array.Reverse(lengthBytes);
lengthBytes.CopyTo(buffer, i);
bytes.CopyTo(buffer, i + 4);
return this;
}
public PackageBuilder appendInt(int value)
{
byte[] lengthBytes = BitConverter.GetBytes(value);
if (BitConverter.IsLittleEndian)
Array.Reverse(lengthBytes);
return appendBytes(lengthBytes);
}
public PackageBuilder appendIntValue(int value)
{
byte[] lengthBytes = BitConverter.GetBytes(value);
if (BitConverter.IsLittleEndian)
Array.Reverse(lengthBytes);
return appendBytesValue(lengthBytes);
}
public PackageBuilder appendString(String value)
{
return appendBytes(Encoding.UTF8.GetBytes(value));
}
public PackageBuilder appendStringValue(String value)
{
return appendBytesValue(Encoding.UTF8.GetBytes(value));
}
public byte[] Build()
{
byte[] result = new byte[4 + buffer.Length];
byte[] lengthBytes = BitConverter.GetBytes(buffer.Length);
if (BitConverter.IsLittleEndian)
Array.Reverse(lengthBytes);
lengthBytes.CopyTo(result, 0);
buffer.CopyTo(result, 4);
return result;
}
}
}
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