public override void SetValueHandler(ElementRequestReader request)
{
long md5 = MD5Utility.GetMD5(request.element.key);
if (Global.LocalStorage.Contains(md5))
{
//the bucket already exsit
using (var bucket = Global.LocalStorage.UseBucket(md5))
{
//different keys may end up in the same bucket(Hash Collision)
bucket.elements.ForEach(element_accessor =>
{
if (element_accessor.key == request.element.key)
{
//if already in the bucket, update the value
element_accessor.value = request.element.value;
return;
}
});
//upon here,no entry for this key exist
bucket.elements.Add(request.element);
}
}
else
{
//no bucket is ever exist, creat for my own!
Bucket newbucket = new Bucket();
Global.LocalStorage.SaveBucket(md5, newbucket);
using (var bucket = Global.LocalStorage.UseBucket(md5))
{
bucket.elements.Add(request.element);
}
}
}
public override void GetValueHandler(StringRequestReader request, ValueResponseWriter response)
{
long md5 = MD5Utility.GetMD5(request.key);
if (Global.LocalStorage.Contains(md5))
{
//the bucket exists, very likely the key is in the bucket
using (var bucket = Global.LocalStorage.UseBucket(md5))
{
response.isFound = false;
bucket.elements.ForEach(element_accessor =>
{
//make sure one of the element matches the key
if (element_accessor.key == request.key)
{
response.isFound = true;
response.value = element_accessor.value;
return;
}
});
return;
}
}
else
{
//no entry for this key exist
response.isFound = false;
return;
}
}
static void DealWithCommand()
{
TrinityConfig.CurrentRunningMode = RunningMode.Client;
slave_count = Global.SlaveCount;
Console.WriteLine("You know you're playing with {0} slave machines", slave_count);
Console.WriteLine("Begin Playing with the toy Redis:");
while (true)
{
Console.Write(" >");
string command = Console.ReadLine();
Regex setregex = new Regex(@"set\s+(\w*)\s+(.*)");
Regex getregex = new Regex(@"get\s+(\w*)");
Match setmatch = setregex.Match(command);
Match getmatch = getregex.Match(command);
#region it is a set command
if (setmatch.Length > 0)
{
string key_raw = setmatch.Groups[1].ToString().Trim();
string value_raw = setmatch.Groups[2].ToString().Trim();
if (value_raw.StartsWith("[") && value_raw.EndsWith("]"))
{
Console.WriteLine("setting the value under \"{0}\" to a List", key_raw);
value_raw = value_raw.TrimStart("[".ToCharArray());
value_raw = value_raw.TrimEnd("]".ToCharArray());
string[] numbers = value_raw.Split(",".ToCharArray());
List <int> list_value = new List <int>();
foreach (string s in numbers)
{
list_value.Add(int.Parse(s.Trim()));
}
//notice! since it's a list value, set the other two arguments to be null, so they won't take extraspace
Element e = new Element(key_raw, new Value(null, null, list_value));
long md5 = MD5Utility.GetMD5(key_raw);
Global.CloudStorage.SetValueToSlave(MD5Utility.GetSlaveID(md5, slave_count),
new ElementRequestWriter(e));
}
else if (value_raw.StartsWith("\"") && value_raw.EndsWith("\""))
{
Console.WriteLine("setting the value under \"{0}\" to a string", key_raw);
value_raw = value_raw.TrimStart("\"".ToCharArray());
value_raw = value_raw.TrimEnd("\"".ToCharArray());
string string_value = value_raw;
//notice! since it's a string value, set the other two arguments to be null, so they won't take extraspace
Element e = new Element(key_raw, new Value(null, string_value, null));
long md5 = MD5Utility.GetMD5(key_raw);
Global.CloudStorage.SetValueToSlave(MD5Utility.GetSlaveID(md5, slave_count),
new ElementRequestWriter(e));
}
else
{
double double_value = 0;
if (!double.TryParse(value_raw.Trim(), out double_value))
{
Console.WriteLine("don't understand what you're talking about.");
continue;
}
Console.WriteLine("setting the value under \"{0}\" to a double", key_raw);
//notice! since it's a double value, set the other two arguments to be null, so they won't take extraspace
Element e = new Element(key_raw, new Value(double_value, null, null));
long md5 = MD5Utility.GetMD5(key_raw);
Global.CloudStorage.SetValueToSlave(MD5Utility.GetSlaveID(md5, slave_count),
new ElementRequestWriter(e));
}
}
#endregion
#region it is a get command
else if (getmatch.Length > 0)
{
string key_raw = getmatch.Groups[1].ToString().Trim();
long md5 = MD5Utility.GetMD5(key_raw);
ValueResponseReader reader = Global.CloudStorage.GetValueToSlave(
MD5Utility.GetSlaveID(md5, slave_count), new StringRequestWriter(key_raw));
if (reader.isFound)
{
if (reader.value.Contains_int_list_value)
{
Console.WriteLine("the value under \"{0}\" is a List", key_raw);
Console.Write("List of Int: [");
reader.value.int_list_value.ForEach(i => { Console.Write(i + ","); });
Console.WriteLine("]");
}
else if (reader.value.Contains_string_value)
{
Console.WriteLine("the value under \"{0}\" is a string", key_raw);
Console.WriteLine(reader.value.string_value);
}
else if (reader.value.Contains_double_value)
{
Console.WriteLine("the value under \"{0}\" is a double", key_raw);
Console.WriteLine(reader.value.double_value);
}
}
else
{
Console.WriteLine("no such object exist under the key: \"{0}\"", key_raw);
}
}
#endregion
else
{
Console.WriteLine("don't understand what you're talking about.");
}
}
}
