public override async Task SaveResponseToLocalCache(string c8oCallRequestIdentifier, C8oLocalCacheResponse localCacheResponse)
{
C8oFullSyncDatabase fullSyncDatabase = await GetOrCreateFullSyncDatabase(C8o.LOCAL_CACHE_DATABASE_NAME);
Document localCacheDocument = fullSyncDatabase.Database.GetDocument(c8oCallRequestIdentifier);
IDictionary <string, object> properties = new Dictionary <string, object>();
properties[C8o.LOCAL_CACHE_DOCUMENT_KEY_RESPONSE] = localCacheResponse.Response;
properties[C8o.LOCAL_CACHE_DOCUMENT_KEY_RESPONSE_TYPE] = localCacheResponse.ResponseType;
if (localCacheResponse.ExpirationDate > 0)
{
properties[C8o.LOCAL_CACHE_DOCUMENT_KEY_EXPIRATION_DATE] = localCacheResponse.ExpirationDate;
}
SavedRevision currentRevision = localCacheDocument.CurrentRevision;
if (currentRevision != null)
{
properties[FULL_SYNC__REV] = currentRevision.Id;
}
localCacheDocument.PutProperties(properties);
}
/// <summary> /// Saves the c8o call response into the local cache. /// </summary> /// <param name="c8oCallRequestIdentifier"></param> /// <param name="responseString"></param> /// <param name="responseType"></param> /// <param name="localCacheTimeToLive"></param> public abstract Task SaveResponseToLocalCache(string c8oCallRequestIdentifier, C8oLocalCacheResponse localCacheResponse);
//public override Object GetResponseFromLocalCache(string c8oCallRequestIdentifier)
//{
// Dictionary<string, object> localCacheDocument = HandleGetDocumentRequest(C8o.LOCAL_CACHE_DATABASE_NAME, c8oCallRequestIdentifier) as Dictionary<string, object>;
// if (localCacheDocument == null)
// {
// throw new C8oUnavailableLocalCacheException(C8oExceptionMessage.ToDo());
// }
// string responsestring = "" + localCacheDocument[C8o.LOCAL_CACHE_DOCUMENT_KEY_RESPONSE];
// string responseTypestring = "" + localCacheDocument[C8o.LOCAL_CACHE_DOCUMENT_KEY_RESPONSE];
// Object expirationDate = localCacheDocument[C8o.LOCAL_CACHE_DOCUMENT_KEY_RESPONSE];
// long expirationDateLong;
// if (expirationDate != null)
// {
// if (expirationDate is long)
// {
// expirationDateLong = (long) expirationDate;
// double currentTime = C8oUtils.GetUnixEpochTime(DateTime.Now);
// if (expirationDateLong < currentTime)
// {
// throw new C8oUnavailableLocalCacheException(C8oExceptionMessage.timeToLiveExpired());
// }
// }
// else
// {
// throw new C8oUnavailableLocalCacheException(C8oExceptionMessage.invalidLocalCacheResponseInformation());
// }
// }
// if (responseTypeString.Equals(C8o.RESPONSE_TYPE_JSON))
// {
// return C8oTranslator.StringToJson(responseString);
// }
// else if (responseTypeString.Equals(C8o.RESPONSE_TYPE_XML))
// {
// return C8oTranslator.StringToXml(responseString);
// }
// else
// {
// throw new C8oException(C8oExceptionMessage.ToDo());
// }
//}
public override /*async*/ Task SaveResponseToLocalCache(string c8oCallRequestIdentifier, C8oLocalCacheResponse localCacheResponse)
{
return(null);
}
async private Task <object> HandleRequest()
{
bool isFullSyncRequest = C8oFullSync.IsFullSyncRequest(parameters);
if (isFullSyncRequest)
{
c8o.Log._Debug("Is FullSync request");
var liveid = C8oUtils.GetParameterStringValue(parameters, C8o.FS_LIVE, false);
if (liveid != null)
{
var dbName = C8oUtils.GetParameterStringValue(parameters, C8o.ENGINE_PARAMETER_PROJECT, true).Substring(C8oFullSync.FULL_SYNC_PROJECT.Length);
c8o.AddLive(liveid, dbName, this);
}
// The result cannot be handled here because it can be different depending to the platform
// But it can be useful bor debug
try
{
var fullSyncResult = await c8o.c8oFullSync.HandleFullSyncRequest(parameters, c8oResponseListener);
return(fullSyncResult);
}
catch (C8oException e)
{
throw e;
}
catch (Exception e)
{
throw new C8oException(C8oExceptionMessage.FullSyncRequestFail(), e);
}
}
else
{
string responseType;
if (c8oResponseListener == null || c8oResponseListener is C8oResponseXmlListener)
{
responseType = C8o.RESPONSE_TYPE_XML;
}
else if (c8oResponseListener is C8oResponseJsonListener)
{
responseType = C8o.RESPONSE_TYPE_JSON;
}
else
{
return(new C8oException("wrong listener"));
}
//*** Local cache ***//
string c8oCallRequestIdentifier = null;
// Allows to enable or disable the local cache on a Convertigo requestable, default value is true
C8oLocalCache localCache = C8oUtils.GetParameterObjectValue(parameters, C8oLocalCache.PARAM, false) as C8oLocalCache;
bool localCacheEnabled = false;
// If the engine parameter for local cache is specified
if (localCache != null)
{
// Removes local cache parameters and build the c8o call request identifier
parameters.Remove(C8oLocalCache.PARAM);
if (localCacheEnabled = localCache.enabled)
{
c8oCallRequestIdentifier = C8oUtils.IdentifyC8oCallRequest(parameters, responseType);
if (localCache.priority.IsAvailable(c8o))
{
try
{
C8oLocalCacheResponse localCacheResponse = await c8o.c8oFullSync.GetResponseFromLocalCache(c8oCallRequestIdentifier);
if (!localCacheResponse.Expired)
{
if (responseType == C8o.RESPONSE_TYPE_XML)
{
return(C8oTranslator.StringToXml(localCacheResponse.Response));
}
else if (responseType == C8o.RESPONSE_TYPE_JSON)
{
return(C8oTranslator.StringToJson(localCacheResponse.Response));
}
}
}
catch (C8oUnavailableLocalCacheException)
{
// no entry
}
}
}
}
//*** Get response ***//
parameters[C8o.ENGINE_PARAMETER_DEVICE_UUID] = c8o.DeviceUUID;
// Build the c8o call URL
c8oCallUrl = c8o.Endpoint + "/." + responseType;
HttpWebResponse httpResponse = null;
Exception exception = null;
try
{
httpResponse = await c8o.httpInterface.HandleC8oCallRequest(c8oCallUrl, parameters);
}
catch (Exception e)
{
exception = e;
}
if (exception != null)
{
if (localCacheEnabled)
{
try
{
C8oLocalCacheResponse localCacheResponse = await c8o.c8oFullSync.GetResponseFromLocalCache(c8oCallRequestIdentifier);
if (!localCacheResponse.Expired)
{
if (responseType == C8o.RESPONSE_TYPE_XML)
{
return(C8oTranslator.StringToXml(localCacheResponse.Response));
}
else if (responseType == C8o.RESPONSE_TYPE_JSON)
{
return(C8oTranslator.StringToJson(localCacheResponse.Response));
}
}
}
catch (C8oUnavailableLocalCacheException)
{
// no entry
}
}
return(new C8oException(C8oExceptionMessage.handleC8oCallRequest(), exception));
}
var responseStream = httpResponse.GetResponseStream();
object response;
string responseString = null;
if (c8oResponseListener is C8oResponseXmlListener)
{
response = C8oTranslator.StreamToXml(responseStream);
if (localCacheEnabled)
{
responseString = C8oTranslator.XmlToString(response as XDocument);
}
}
else if (c8oResponseListener is C8oResponseJsonListener)
{
responseString = C8oTranslator.StreamToString(responseStream);
response = C8oTranslator.StringToJson(responseString);
}
else
{
return(new C8oException("wrong listener"));
}
if (localCacheEnabled)
{
// String responseString = C8oTranslator.StreamToString(responseStream);
long expirationDate = -1;
if (localCache.ttl > 0)
{
expirationDate = localCache.ttl + C8oUtils.GetUnixEpochTime(DateTime.Now);
}
var localCacheResponse = new C8oLocalCacheResponse(responseString, responseType, expirationDate);
await c8o.c8oFullSync.SaveResponseToLocalCache(c8oCallRequestIdentifier, localCacheResponse);
}
return(response);
}
}