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 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));
}
