/// <summary>
/// This method gets the data or current status for a request
/// </summary>
/// <param name="dataRequestLogObj"></param>
/// <returns></returns>
public static ZillowPropertyDetails ReRun(DataRequestLog dataRequestLogObj)
{
ZillowPropertyDetails zPropertyDetails = new ZillowPropertyDetails();
zPropertyDetails.BBL = dataRequestLogObj.BBL;
zPropertyDetails.requestId = dataRequestLogObj.RequestId;
zPropertyDetails.externalReferenceId = dataRequestLogObj.ExternalReferenceId;
zPropertyDetails.status = ((RequestStatus)dataRequestLogObj.RequestStatusTypeId).ToString();;
zPropertyDetails.zEstimate = null;
try
{
using (WebDataEntities webDBEntities = new WebDataEntities())
{
if (dataRequestLogObj.RequestStatusTypeId == (int)RequestStatus.Success)
{
Parameters parameters = JSONToParameters(dataRequestLogObj.RequestParameters);
//check if data available
WebDataDB.Zillow zillowObj = webDBEntities.Zillows.FirstOrDefault(i => i.BBL == parameters.BBL);
if (zillowObj != null && DateTime.UtcNow.Subtract(zillowObj.LastUpdated).Days <= 30)
{
zPropertyDetails.zEstimate = zillowObj.zEstimate;
}
else
{
zPropertyDetails.status = RequestStatus.Error.ToString();
}
}
}
return(zPropertyDetails);
}
catch (Exception e)
{ Common.Logs.log().Error(string.Format("Exception encountered processing request log for {0} with externalRefId {1}{2}",
dataRequestLogObj.BBL, dataRequestLogObj.ExternalReferenceId, Common.Logs.FormatException(e)));
return(null); }
}
/// <summary>
/// This method updates the Zillow table based on the information received from the Request Object
/// </summary>
public static bool UpdateData(Common.Context appContext, Request requestObj)
{
using (WebDataEntities webDBEntities = new WebDataEntities())
{
using (var webDBEntitiestransaction = webDBEntities.Database.BeginTransaction())
{
try
{
List <DataRequestLog> logs = null;
decimal?zEstimate = null;
switch (requestObj.RequestStatusTypeId)
{
case (int)RequestStatus.Error:
logs = DAL.DataRequestLog.SetAsError(webDBEntities, requestObj.RequestId);
break;
case (int)RequestStatus.Success:
{
DataRequestLog dataRequestLogObj = DAL.DataRequestLog.GetFirst(webDBEntities, requestObj.RequestId);
if (dataRequestLogObj != null)
{
RequestResponseBuilder.ResponseObjects.ZillowZEstimate resultObj = null;
try
{ resultObj = (ResponseData.ParseZillowZEstimate(requestObj.ResponseData))[0];
zEstimate = resultObj.Zestimate; }
catch (Exception e)
{
Common.Logs.log().Error(string.Format("Cannot parse the response data {0}{1}", requestObj.RequestId, Common.Logs.FormatException(e)));
}
Parameters parameters = JSONToParameters(dataRequestLogObj.RequestParameters);
//check if old data in the DB
WebDataDB.Zillow zillowObj = webDBEntities.Zillows.FirstOrDefault(i => i.BBL == parameters.BBL);
if (zillowObj != null)
{ //Update data with new results
zillowObj.zEstimate = zEstimate;
zillowObj.LastUpdated = requestObj.DateTimeEnded.GetValueOrDefault();
}
else
{ // add an entry into cache or DB
zillowObj = new WebDataDB.Zillow();
zillowObj.BBL = parameters.BBL;
zillowObj.zEstimate = zEstimate;
zillowObj.LastUpdated = requestObj.DateTimeEnded.GetValueOrDefault();
webDBEntities.Zillows.Add(zillowObj);
}
webDBEntities.SaveChanges();
logs = DAL.DataRequestLog.SetAsSuccess(webDBEntities, requestObj.RequestId);
}
else
{
throw (new Exception("Cannot locate Request Log Record(s)"));
}
break;
}
default:
Common.Logs.log().Warn(String.Format("Update called for a Request Object Id {0} with incorrect Status Id {1}", requestObj.RequestId, requestObj.RequestStatusTypeId));
break;
}
webDBEntitiestransaction.Commit();
if (logs != null)
{
MakeCallBacks(appContext, logs, zEstimate);
}
return(true);
}
catch (Exception e)
{
webDBEntitiestransaction.Rollback();
Common.Logs.log().Error(string.Format("Exception encountered updating request with id {0}{1}", requestObj.RequestId, Common.Logs.FormatException(e)));
return(false);
}
}
}
}
/// <summary>
/// This method deals with all the details associated with either returning the Zillow details or creating the
/// request for getting it scrapped from the web
/// </summary>
public static ZillowPropertyDetails Get(string propertyBBL, string address, string externalReferenceId, int priority, string jobId)
{
ZillowPropertyDetails zPropertyDetails = new ZillowPropertyDetails();
zPropertyDetails.BBL = propertyBBL;
zPropertyDetails.externalReferenceId = externalReferenceId;
zPropertyDetails.status = RequestStatus.Pending.ToString();
zPropertyDetails.zEstimate = null;
string parameters = ParametersToJSON(propertyBBL, address);
using (WebDataEntities webDBEntities = new WebDataEntities())
{
using (var webDBEntitiestransaction = webDBEntities.Database.BeginTransaction())
{
try
{
string jsonBillParams = ParametersToJSON(propertyBBL, address);
//check if data available
WebDataDB.Zillow zillowObj = webDBEntities.Zillows.FirstOrDefault(i => i.BBL == propertyBBL);
// record in database and data is not stale
if (zillowObj != null && DateTime.UtcNow.Subtract(zillowObj.LastUpdated).Days <= 30)
{
zPropertyDetails.zEstimate = zillowObj.zEstimate;
zPropertyDetails.status = RequestStatus.Success.ToString();
DAL.DataRequestLog.InsertForCacheAccess(webDBEntities, propertyBBL, RequestTypeId, externalReferenceId, jobId, jsonBillParams);
}
else
{ //check if pending request in queue
DataRequestLog dataRequestLogObj = DAL.DataRequestLog.GetPendingRequest(webDBEntities, propertyBBL, RequestTypeId, jsonBillParams);
if (dataRequestLogObj == null) //No Pending Request Create New Request
{
string requestStr = RequestResponseBuilder.RequestObjects.RequestData.ZillowZEstimate(address);
Request requestObj = DAL.Request.Insert(webDBEntities, requestStr, RequestTypeId, priority, jobId);
dataRequestLogObj = DAL.DataRequestLog.InsertForWebDataRequest(webDBEntities, propertyBBL, RequestTypeId, requestObj.RequestId,
externalReferenceId, jobId, jsonBillParams);
zPropertyDetails.status = RequestStatus.Pending.ToString();
zPropertyDetails.requestId = requestObj.RequestId;
}
else //Pending request in queue
{
zPropertyDetails.status = RequestStatus.Pending.ToString();
//Send the RequestId for the pending request back
zPropertyDetails.requestId = dataRequestLogObj.RequestId;
dataRequestLogObj = DAL.DataRequestLog.InsertForWebDataRequest(webDBEntities, propertyBBL, RequestTypeId,
dataRequestLogObj.RequestId.GetValueOrDefault(), externalReferenceId, jobId, jsonBillParams);
}
}
webDBEntitiestransaction.Commit();
}
catch (Exception e)
{
webDBEntitiestransaction.Rollback();
zPropertyDetails.status = RequestStatus.Error.ToString();
DAL.DataRequestLog.InsertForFailure(propertyBBL, RequestTypeId, externalReferenceId, jobId, parameters);
Common.Logs.log().Error(string.Format("Exception encountered processing {0} with externalRefId {1}{2}", propertyBBL, externalReferenceId, Common.Logs.FormatException(e)));
}
}
}
return(zPropertyDetails);
}