private void PreProcessInput(string data)
{
int numeric = -1;
if (int.TryParse(data, out numeric))
{
//this means that the next N packages are to be used together
packages = numeric;
currentCount = 0;
bigMessageBuilder = new StringBuilder();
}
else
{
if (packages > 1)
{
bigMessageBuilder.Append(data);
currentCount += data.Length;
if (currentCount == 16384)
{
packages--;
currentCount = 0;
}
}
else if (packages == 1)
{
bigMessageBuilder.Append(data);
if (data.EndsWith("}"))
{
packages--;
}
if (packages == 0)
{
data = bigMessageBuilder.ToString();
bigMessageBuilder = new StringBuilder();
}
}
if (packages == 0)
{
Responses.Response response = null;
response = Newtonsoft.Json.JsonConvert.DeserializeObject <Responses.Response>(data);
if (response.Data.Action == null)
{
Dictionary <string, object> current;
unconfirmedChangesets.TryDequeue(out current);
// Console.WriteLine(string.Format("Request: {0} -> {1}", response.Data.ResquestId, response.Data.Payload.Status));
}
else
{
ProcessInput(response);
}
}
}
}
private void ProcessInput(Responses.Response response)
{
//todo: process the input to ensure message re-sending
//Console.WriteLine(data);
if (response.Data.Action != null)
{
ChangeSet changeset = null;
if (response.Data.Action == "d")
{
//the data here comes as an object
JToken token = response.Data.Payload.Data as JToken;
if (token == null)
{
changeset = new ChangeSetLeaf(response.Data.Payload.Data);
}
else
{
changeset = ChangeSet.FromJToken(token);
}
}
else if (response.Data.Action == "m")
{
//the data here comes as a dictionary of path,value
JToken token = response.Data.Payload.Data as JToken;
changeset = ChangeSet.FromFlatJToken(token);
}
else
{
}
//ensure that the changset is not mine.
Dictionary <string, object> flattennedChangeset = changeset.Flatten();
//top of the queue should be the next message if it is mine.
Dictionary <string, object> current = null;
if (unconfirmedChangesets.TryPeek(out current))
{
if (flattennedChangeset.All(kvp => current.ContainsKey(kvp.Key) && current[kvp.Key].Equals(kvp.Value)))
{
//My topmost unconfirmed changeset, did this exact modification, this should indicate that it is my echo
// Console.WriteLine("Echo received");
}
else
{
//now, what if this is not an echo, and invalidates any changeset that has not been commited yet?
var conflicts = unconfirmedChangesets.Where(unconfirmed => flattennedChangeset.Any(kvp => unconfirmed.ContainsKey(kvp.Key) && unconfirmed[kvp.Key] == kvp.Value));
if (conflicts.Count() > 0)
{
//i have no idea what to do here
Console.WriteLine("Collision detected");
}
}
}
else
{
//no unconfirmed messages, i think
mergeToLocalCache(response.Data.Payload.Path, changeset);
handleCallbacks(response.Data.Payload.Path, changeset);
}
}
}