public override byte[] Encode(BufferPlus bp, float value, Encoding encoding = null, int position = -1, int length = -1)
{
bp.SanitizeParameter(ref position, ref length, ref encoding);
var bytes = EndianBitConverter.LittleEndian.GetBytes(value);
bp.Memory.Write(bytes, 0, bytes.Length);
return(bytes);
}
public override float Decode(BufferPlus bp, Encoding encoding = null, int position = -1, int length = -1)
{
bp.SanitizeParameter(ref position, ref length, ref encoding);
var bytes = bp.Buffer.Skip(position).Take(4).ToArray();
var result = EndianBitConverter.LittleEndian.ToSingle(bytes, 0);
return(result);
}
public static void Test02()
{
var bp = new BufferPlus(16);
//write
bp.Write(true);
BufferPlus.PrettyPrintHex(bp, "Write(true)");
bp.Write((sbyte)-0x12);
BufferPlus.PrettyPrintHex(bp, "Write(sbyte)");
bp.Write((byte)0x12);
BufferPlus.PrettyPrintHex(bp, "Write(byte)");
bp.Write((short)0x1234);
BufferPlus.PrettyPrintHex(bp, "Write(short)");
bp.Write((ushort)0x1234);
BufferPlus.PrettyPrintHex(bp, "Write(ushort)");
bp.Write((int)-0x12345678);
BufferPlus.PrettyPrintHex(bp, "Write(int)");
bp.Write((uint)0x12345678);
BufferPlus.PrettyPrintHex(bp, "Write(uint)");
bp.Write((long)-0x1234567812345678);
BufferPlus.PrettyPrintHex(bp, "Write(long)");
bp.Write((ulong)0x1234567812345678);
BufferPlus.PrettyPrintHex(bp, "Write(ulong)");
bp.Write((float)-0x1234567812345678);
BufferPlus.PrettyPrintHex(bp, "Write(float)");
bp.Write((double)0x1234567812345678);
BufferPlus.PrettyPrintHex(bp, "Write(double)");
// read
bp.Position = 0;
BufferPlus.PrettyPrintHex(bp, "ReadBoolean", bp.ReadBoolean());
BufferPlus.PrettyPrintHex(bp, "ReadInt8", bp.ReadInt8());
BufferPlus.PrettyPrintHex(bp, "ReadUInt8", bp.ReadUInt8());
BufferPlus.PrettyPrintHex(bp, "ReadInt16BE", bp.ReadInt16BE());
BufferPlus.PrettyPrintHex(bp, "ReadInt32BE", bp.ReadInt32BE());
BufferPlus.PrettyPrintHex(bp, "ReadUInt32BE", bp.ReadUInt32BE());
BufferPlus.PrettyPrintHex(bp, "ReadInt64BE", bp.ReadInt64BE());
BufferPlus.PrettyPrintHex(bp, "ReadUInt64BE", bp.ReadUInt64BE());
BufferPlus.PrettyPrintHex(bp, "ReadFloatBE", bp.ReadFloatBE());
BufferPlus.PrettyPrintHex(bp, "ReadDoubleBE", bp.ReadDoubleBE());
}
public static void Test03()
{
var names = new string[3] {
"小張", "小李", "小笨狗"
};
var values = new int[3] {
int.MaxValue, 0, int.MinValue
};
var floats = new float[3] {
float.NaN, -0f, float.MaxValue
};
var bp = new BufferPlus(16);
bp.WriteArray(names);
BufferPlus.PrettyPrintHex(bp, "WriteArray", (names));
bp.WritePackedArray(values);
BufferPlus.PrettyPrintHex(bp, "WritePackedArray", (values));
bp.WritePackedString("中文測試");
BufferPlus.PrettyPrintHex(bp, "WritePackedString", "中文測試");
bp.WritePackedArray(names);
BufferPlus.PrettyPrintHex(bp, "WritePackedArray", (names));
bp.WriteArray(names);
BufferPlus.PrettyPrintHex(bp, "WriteArray", (names));
bp.WriteVarIntArray(values);
BufferPlus.PrettyPrintHex(bp, "WriteVarIntArray", (values));
bp.WriteVarIntPackedArray(values);
BufferPlus.PrettyPrintHex(bp, "WriteVarIntPackedArray", (values));
bp.WritePackedArray(floats);
BufferPlus.PrettyPrintHex(bp, "WritePackedArray", (floats));
bp.Position = 0;
BufferPlus.PrettyPrintHex(bp, "ReadStringArray", (bp.ReadStringArray(3)));
BufferPlus.PrettyPrintHex(bp, "ReadPackedArray", (bp.ReadPackedArray <int>(TypeString.Int32BE)));
BufferPlus.PrettyPrintHex(bp, "ReadPackedString", (bp.ReadPackedString()));
BufferPlus.PrettyPrintHex(bp, "ReadPackedArray", (bp.ReadPackedStringArray()));
BufferPlus.PrettyPrintHex(bp, "ReadArray", (bp.ReadArray <string>(TypeString.String, 3)));
BufferPlus.PrettyPrintHex(bp, "ReadVarIntArray", (bp.ReadVarIntArray(3)));
BufferPlus.PrettyPrintHex(bp, "ReadVarIntPackedArray", (bp.ReadVarIntPackedArray()));
BufferPlus.PrettyPrintHex(bp, "ReadPackedArray", (bp.ReadPackedArray <float>(TypeString.Float32BE)));
}
public static void Test01()
{
// account data
Account account = new Account()
{
name = "user1",
age = 18,
languages = new string[] {
"en-US", "en-UK"
},
serial = 0x123456781234567
};
// account schema definition
var AccountSchema = @"{
type: 'object',
properties: {
name: {type: 'string'},
age: {type: 'uint8'},
languages: {
type: 'array',
items: {type: 'string'},
},
serial: {type: 'uint64le'},
},
order: ['name', 'age', 'languages', 'serial'],
}";
// create Account schema
BufferPlus.CreateSchema("Account", AccountSchema);
// create a BufferPlus instance
var bp = new BufferPlus();
// write account data with Account schema
bp.WriteSchema("Account", account);
// move to buffer beginning
bp.MoveTo(0);
// read account from buffer
var decodedAccount = bp.ReadSchema("Account", new Account());
// print out buffer context
BufferPlus.PrettyPrintHex(bp, "ReadSchema", decodedAccount);
}
public override int Size(BufferPlus buffer, uint value)
{
return(VarintBitConverter.GetBytesLength <uint>(value));
}
public static void Test04()
{
var getMd5Hash = new Func <dynamic, string>((value) => {
var bytes = Encoding.UTF8.GetBytes(Convert.ToString(value));
var cryptoMD5 = System.Security.Cryptography.MD5.Create();
var hash = BitConverter.ToString(cryptoMD5.ComputeHash(bytes))
.Replace("-", String.Empty);
return(hash);
});
BufferPlus.AddCustomType("HashString",
// Read("HashString") method
(buffer) => {
// read byte length of MD5 checksum from buffer
var hashLen = buffer.ReadUInt32LE();
// read byte length of value from buffer
var valueLen = buffer.ReadUInt32LE();
// read MD5 checksum from buffer
var hash = buffer.ReadString((int)hashLen);
// return a object contains MD5 checksum and value
var value = buffer.ReadString((int)valueLen);
// return a object contains MD5 checksum and value
return(new { value = value, hash = hash });
},
// Write(value, "HashString") method
(buffer, value) => {
// calculate value's MD5 checksum
var hash = getMd5Hash(value);
// write byte length of MD5 checksum to buffer
buffer.WriteUInt32LE(hash.Length);
// write byte length of value to buffer
buffer.WriteUInt32LE(Convert.ToString(value).Length);
// write MD5 checksum to buffer
buffer.WriteString(hash);
// write value to buffer
buffer.WriteString(Convert.ToString(value));
},
// ByteLength(value, "HashString") method
(buffer, value) => {
if (value is string)
{
var hash = getMd5Hash(value);
return(8 +
BufferPlus.ByteLength(value, TypeString.String) +
BufferPlus.ByteLength(hash, TypeString.String));
}
dynamic obj = value;
return(8 +
BufferPlus.ByteLength(obj.value, TypeString.String) +
BufferPlus.ByteLength(obj.hash, TypeString.String));
}
);
var bp = new BufferPlus(16);
var str = "test hash string";
// write string into buffer with pre-defined 'HashString' custom. type.
// it gets string's MD5 checksum and write MD5 checksum
// and string into buffer
bp.Write(str, "HashString");
// seek to beginning
bp.MoveTo(0);
// read buffer with with pre-defined 'HashString' custom. type.
// it reads MD5 checksum and string from buffer and
// returns a object contains 'hash' and 'value' properties.
var hashObj = bp.Read("HashString");
BufferPlus.PrettyPrintHex(bp, "ReadHashString", (hashObj));
}
public override int Size(BufferPlus bp, short value) => 2;
public override int Size(BufferPlus bp, sbyte value) => 1;
public override int Size(BufferPlus bp, double value) => 8;
public override byte[] Encode(BufferPlus bp, sbyte value, Encoding encoding = null, int position = -1, int length = -1)
{
bp.SanitizeParameter(ref position, ref length, ref encoding);
bp.Memory.WriteByte((byte)value);
return(new byte[] { (byte)value });
}
public override int Size(BufferPlus bp, float value) => 4;
public override sbyte Decode(BufferPlus bp, Encoding encoding = null, int position = -1, int length = -1)
{
bp.SanitizeParameter(ref position, ref length, ref encoding);
return((sbyte)bp.Memory.ReadByte());
}
public override int Size(BufferPlus bp, ulong value) => 8;
public override int Size(BufferPlus bp, bool value) => 1;
