public SyncClient(string synchronizationId, SyncEngine syncEngine, string serverUrl, Dictionary <string, string> httpHeaders)
{
this.synchronizationId = synchronizationId ?? throw new NullReferenceException(nameof(synchronizationId));
this.syncEngine = syncEngine ?? throw new NullReferenceException(nameof(syncEngine));
this.serverUrl = serverUrl ?? throw new NullReferenceException(nameof(serverUrl));
this.httpHeaders = httpHeaders;
}
public static GetChangesParameter FromPayload(JObject payload, SyncEngine syncEngine)
{
string synchronizationId = payload[nameof(SynchronizationId)].Value <string>();
Dictionary <string, object> customInfo = payload[nameof(CustomInfo)].ToObject <Dictionary <string, object> >();
PayloadAction payloadAction = (PayloadAction)Enum.Parse(typeof(PayloadAction), payload[nameof(PayloadAction)].Value <string>());
GetChangesParameter parameter = new GetChangesParameter(payloadAction, synchronizationId, customInfo);
parameter.LastSync = payload[nameof(LastSync)].Value <long>();
parameter.AppliedIds = PayloadHelper.GetAppliedIdsFromPayload(payload[nameof(PayloadAppliedIds)].ToObject <Dictionary <string, List <object> > >(), syncEngine, synchronizationId, customInfo);
return(parameter);
}
public JObject Process(byte[] syncDataBytes)
{
if (syncDataBytes == null)
{
throw new NullReferenceException(nameof(syncDataBytes));
}
JObject jsonResult = JsonDefaultResponse();
SyncServerLockObject syncServerLockObject = null;
bool lockTaken = false;
List <string> log = new List <string>();
SyncEngine.PayloadAction payloadAction = SyncEngine.PayloadAction.Synchronize;
SyncEngine.ApplyChangesResult applyChangesResult = null;
SyncEngine.GetChangesResult getChangesResult = null;
SyncEngine.GetKnowledgeResult getKnowledgeResult = null;
SyncEngine.ApplyChangesByKnowledgeResult applyChangesByKnowledgeResult = null;
SyncEngine.GetChangesByKnowledgeResult getChangesByKnowledgeResult = null;
try
{
string json = SyncEngine.Decompress(syncDataBytes);
JObject payload = JsonConvert.DeserializeObject <JObject>(json);
string synchronizationId = payload[nameof(SyncEngine.BaseInfo.SynchronizationId)].Value <string>();
payloadAction = (SyncEngine.PayloadAction)Enum.Parse(typeof(SyncEngine.PayloadAction), payload[nameof(SyncEngine.BaseInfo.PayloadAction)].Value <string>());
lock (serverLock)
{
if (!serverLockObjects.ContainsKey(synchronizationId))
{
SyncServerLockObject newLockObject = new SyncServerLockObject(synchronizationId);
serverLockObjects.Add(synchronizationId, newLockObject);
}
syncServerLockObject = serverLockObjects[synchronizationId];
}
Monitor.TryEnter(syncServerLockObject, 0, ref lockTaken);
if (!lockTaken)
{
throw new Exception($"{nameof(SyncServerLockObject.SynchronizationId)}: {syncServerLockObject.SynchronizationId}, Synchronization process is already in progress");
}
if (syncEngine.SyncConfiguration.TimeStampStrategy == SyncConfiguration.TimeStampStrategyEnum.GlobalTimeStamp)
{
if (payloadAction == SyncEngine.PayloadAction.Synchronize)
{
SyncEngine.ApplyChangesParameter applyChangesParameter = SyncEngine.ApplyChangesParameter.FromPayload(payload);
applyChangesParameter.Log = log;
syncEngine.ApplyChanges(applyChangesParameter, ref applyChangesResult);
}
else if (payloadAction == SyncEngine.PayloadAction.SynhronizeReverse)
{
SyncEngine.GetChangesParameter getChangesParameter = SyncEngine.GetChangesParameter.FromPayload(payload, syncEngine);
getChangesParameter.Log = log;
syncEngine.GetChanges(getChangesParameter, ref getChangesResult);
}
else
{
throw new NotImplementedException(payloadAction.ToString());
}
}
else if (syncEngine.SyncConfiguration.TimeStampStrategy == SyncConfiguration.TimeStampStrategyEnum.DatabaseTimeStamp)
{
if (payloadAction == SyncEngine.PayloadAction.Knowledge)
{
SyncEngine.GetKnowledgeParameter getKnowledgeParameter = SyncEngine.GetKnowledgeParameter.FromPayload(payload);
getKnowledgeParameter.Log = log;
syncEngine.GetKnowledge(getKnowledgeParameter, ref getKnowledgeResult);
}
else if (payloadAction == SyncEngine.PayloadAction.Synchronize)
{
SyncEngine.ApplyChangesByKnowledgeParameter applyChangesByKnowledgeParameter = SyncEngine.ApplyChangesByKnowledgeParameter.FromPayload(payload);
applyChangesByKnowledgeParameter.Log = log;
syncEngine.ApplyChangesByKnowledge(applyChangesByKnowledgeParameter, ref applyChangesByKnowledgeResult);
}
else if (payloadAction == SyncEngine.PayloadAction.SynhronizeReverse)
{
SyncEngine.GetChangesByKnowledgeParameter getChangesByKnowledgeParameter = SyncEngine.GetChangesByKnowledgeParameter.FromPayload(payload);
getChangesByKnowledgeParameter.Log = log;
syncEngine.GetChangesByKnowledge(getChangesByKnowledgeParameter, ref getChangesByKnowledgeResult);
}
else
{
throw new NotImplementedException(payloadAction.ToString());
}
}
else
{
throw new NotImplementedException(syncEngine.SyncConfiguration.TimeStampStrategy.ToString());
}
}
catch (Exception e)
{
jsonResult["isOK"] = false;
jsonResult["errorMessage"] = e.Message;
log.Add(e.Message);
}
finally
{
if (syncEngine.SyncConfiguration.TimeStampStrategy == SyncConfiguration.TimeStampStrategyEnum.GlobalTimeStamp)
{
if (payloadAction == SyncEngine.PayloadAction.Synchronize)
{
if (applyChangesResult != null)
{
try
{
jsonResult["payload"] = Convert.ToBase64String(applyChangesResult.GetCompressed());
}
catch (Exception e)
{
string errMsg = $"jsonResult payload in applyChangesResult Error: {e.Message}";
jsonResult["isOK"] = false;
jsonResult["errorMessage"] = errMsg;
log.Add(errMsg);
}
}
}
else if (payloadAction == SyncEngine.PayloadAction.SynhronizeReverse)
{
if (getChangesResult != null)
{
try
{
jsonResult["payload"] = Convert.ToBase64String(getChangesResult.GetCompressed());
}
catch (Exception e)
{
string errMsg = $"jsonResult payload in getChangesResult Error: {e.Message}";
jsonResult["isOK"] = false;
jsonResult["errorMessage"] = errMsg;
log.Add(errMsg);
}
}
}
else
{
throw new NotImplementedException(payloadAction.ToString());
}
}
else if (syncEngine.SyncConfiguration.TimeStampStrategy == SyncConfiguration.TimeStampStrategyEnum.DatabaseTimeStamp)
{
if (payloadAction == SyncEngine.PayloadAction.Knowledge)
{
if (getKnowledgeResult != null)
{
try
{
jsonResult["payload"] = Convert.ToBase64String(getKnowledgeResult.GetCompressed());
}
catch (Exception e)
{
string errMsg = $"jsonResult payload in getKnowledgeResult Error: {e.Message}";
jsonResult["isOK"] = false;
jsonResult["errorMessage"] = errMsg;
log.Add(errMsg);
}
}
}
else if (payloadAction == SyncEngine.PayloadAction.Synchronize)
{
if (applyChangesByKnowledgeResult != null)
{
try
{
jsonResult["payload"] = Convert.ToBase64String(applyChangesByKnowledgeResult.GetCompressed());
}
catch (Exception e)
{
string errMsg = $"jsonResult payload in applyChangesByKnowledgeResult Error: {e.Message}";
jsonResult["isOK"] = false;
jsonResult["errorMessage"] = errMsg;
log.Add(errMsg);
}
}
}
else if (payloadAction == SyncEngine.PayloadAction.SynhronizeReverse)
{
if (getChangesByKnowledgeResult != null)
{
try
{
jsonResult["payload"] = Convert.ToBase64String(getChangesByKnowledgeResult.GetCompressed());
}
catch (Exception e)
{
string errMsg = $"jsonResult payload in getChangesByKnowledgeResult Error: {e.Message}";
jsonResult["isOK"] = false;
jsonResult["errorMessage"] = errMsg;
log.Add(errMsg);
}
}
}
else
{
throw new NotImplementedException(payloadAction.ToString());
}
}
else
{
string errMsg = $"Process finally block Not Implemented Error: {syncEngine.SyncConfiguration.TimeStampStrategy.ToString()}";
jsonResult["isOK"] = false;
jsonResult["errorMessage"] = errMsg;
log.Add(errMsg);
}
jsonResult["log"] = JArray.FromObject(log);
if (lockTaken)
{
Monitor.Exit(syncServerLockObject);
}
}
return(jsonResult);
}
public SyncServer(SyncEngine syncEngine)
{
this.syncEngine = syncEngine;
}
private async Task <(string errorMessage, JObject payload)> ExecuteOnServer(byte[] compressed, SyncResult syncResult)
{
JObject payload = null;
using (var httpClient = new HttpClient())
{
if (httpHeaders != null)
{
httpHeaders.ToList().ForEach(kvp =>
{
if (httpClient.DefaultRequestHeaders.Contains(kvp.Key))
{
httpClient.DefaultRequestHeaders.Remove(kvp.Key);
}
httpClient.DefaultRequestHeaders.Add(kvp.Key, kvp.Value);
});
}
using (var multipartFormDataContent = new MultipartFormDataContent())
{
ByteArrayContent byteArrayContent = new ByteArrayContent(compressed);
multipartFormDataContent.Add(byteArrayContent, "files", "compressed.data");
var response = await httpClient.PostAsync(serverUrl, multipartFormDataContent);
if (response.IsSuccessStatusCode)
{
string responseContent = await response.Content.ReadAsStringAsync();
JObject jObjectResponse = null;
try
{
jObjectResponse = JsonConvert.DeserializeObject <JObject>(responseContent);
}
catch (Exception eInner)
{
return($"Unable to parse Response as JObject: {eInner.Message}. Response: {responseContent}", payload);
}
List <string> serverLog = jObjectResponse["log"].ToObject <List <string> >();
for (int i = 0; i < serverLog.Count; i++)
{
syncResult.Log.Add($"Server -> {serverLog[i]}");
}
if (jObjectResponse.ContainsKey("payload"))
{
byte[] compressedResponse = Convert.FromBase64String(jObjectResponse["payload"].Value <string>());
string jsonResponse = SyncEngine.Decompress(compressedResponse);
payload = JsonConvert.DeserializeObject <JObject>(jsonResponse);
}
if (jObjectResponse.ContainsKey("errorMessage"))
{
return($"ServerMessage: {jObjectResponse["errorMessage"].Value<string>()}", payload);
}
return(null, payload);
}
else
{
return($"Response StatusCode: {response.StatusCode}, ReasonPhrase: {response.ReasonPhrase}", payload);
}
}
}
}
public SyncClient(string synchronizationId, SyncEngine syncEngine, string serverUrl)
: this(synchronizationId, syncEngine, serverUrl, null)
{
}
public static Dictionary <Type, List <object> > GetAppliedIdsFromPayload(Dictionary <string, List <object> > safeAppliedIds, SyncEngine syncEngine, string synchronizationId, Dictionary <string, object> customInfo)
{
Dictionary <Type, List <object> > result = new Dictionary <Type, List <object> >();
foreach (var item in safeAppliedIds)
{
string fullName = UnsafeFullName(item.Key);
Type localType = syncEngine.SyncConfiguration.SyncTypes.Where(w => w.FullName == fullName).FirstOrDefault();
if (localType == null)
{
throw new SyncEngineConstraintException($"Missing localType: {fullName} from AppliedIds");
}
if (!result.ContainsKey(localType))
{
result[localType] = new List <object>();
}
for (int i = 0; i < item.Value.Count; i++)
{
JValue value = new JValue(item.Value[i]);
object localId = syncEngine.TransformIdType(localType, value, null, OperationType.GetChanges, synchronizationId, customInfo);
result[localType].Add(localId);
}
}
return(result);
}