private bool RecreateTableStorage()
{
CloudTable tableReference = QuoteDB.GetQuotesTableReference();
DateTime dtTimeout = DateTime.Now.AddSeconds(20);
try
{
tableReference.Create();
}
catch (StorageException ex)
{
if ((ex.RequestInformation.HttpStatusCode == 409) &&
(ex.RequestInformation.ExtendedErrorInformation.ErrorCode.Equals(TableErrorCodeStrings.TableBeingDeleted)) &&
(DateTime.Now < dtTimeout)
)
{
Thread.Sleep(2000);// The table is currently being deleted. Try again until it works.
}
else
{
new LogException(ex);
throw new TimeoutException("Timeout waiting for empty database", ex);
}
}
catch (Exception ex)
{
new LogException(ex);
throw;
}
return(AddQuotesToNewTable());
}
private bool AddQuotesToNewTable()
{
bool Worked = false;
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
try
{
CloudTable tableReference = QuoteDB.GetQuotesTableReference();
//
// this process of adding batchs of 90 came from an error
// when I created all 220 entries in one batch
// error received: "Unexpected response code for operation : 99"
// solution option: http://stackoverflow.com/questions/18170920/azure-table-storage-error-unexpected-response-code-for-operation-99
//
var quoteList = BasicQuotes.GetQuoteList();
int CntQuote = 0;
foreach (var chunk in quoteList.Chunk(90))
{
TableBatchOperation batchOperation = new TableBatchOperation();
foreach (var quote in chunk)
{
var thisQuote = BasicQuotes.BuildQuote(quote);
QuoteRec q = new QuoteRec {
Author = thisQuote.Author, Quote = thisQuote.Quote, ModeratorApproved = true, QuoteSubmitter = Guid.Empty
};
QuoteTableEntity qte = new QuoteTableEntity {
PartitionKey = "quoter", RowKey = Guid.NewGuid().ToString("N"), idxQuoteAsLoaded = ++CntQuote
};
qte.StoreQuoteRecord(q);
batchOperation.Insert(qte);
}
tableReference.ExecuteBatch(batchOperation);
}
Worked = true;
}
catch (Exception ex)
{
new LogException(ex);
}
finally
{
sw.Stop();
System.Diagnostics.Debug.WriteLine(">>>> Table Load times:" + sw.Elapsed.ToString());
}
return(Worked);
}
private List <QuoteRec> GetRecordsFromDatabase( )
{
List <QuoteRec> results = new List <QuoteRec>();
CloudTable tableReference = QuoteDB.GetQuotesTableReference();
TableQuery <QuoteTableEntity> query = new TableQuery <QuoteTableEntity>();
foreach (QuoteTableEntity qte in tableReference.ExecuteQuery(query))
{
QuoteRec qr = qte.ExtractQuoteRecord();
qr.Reference = qr.Reference ?? "";
qr.Email = qr.Email ?? "";
results.Add(qr);
}
return(results);
}
private void LoadFullQuotesFromDatabase()
{
try
{
List <QuoteRec> quoteRecs = new List <QuoteRec> {
new QuoteRec {
Author = "DB", Quote = "loading data "
}
};
Application["QuoteDBDataCache"] = quoteRecs;
var qtr = QuoteDB.GetQuotesTableReference();
// Construct the query operation for all entities
TableQuery <QuoteTableEntity> query = new TableQuery <QuoteTableEntity>();
// note: WIP: might need to do this , like this: TableQuery<QuoteTableEntity> query = new TableQuery<QuoteTableEntity>().Where(TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, "Smith"));
var results = qtr.ExecuteQuery(query);
List <QuoteTableEntity> quoteTableEntitiess = results.ToList();
quoteRecs = new List <QuoteRec>();
foreach (QuoteTableEntity qte in quoteTableEntitiess)
{
QuoteRec qr = qte.ExtractQuoteRecord();
quoteRecs.Add(qr);
}
Application["QuoteDBDataCache"] = quoteRecs;
}
catch (Microsoft.WindowsAzure.Storage.StorageException ex)
{
new LogException(ex);
List <QuoteRec> quoteRecs = new List <QuoteRec> {
new QuoteRec {
Author = "DB", Quote = "Database error loading data"
}
};
Application["QuoteDBDataCache"] = quoteRecs;
}
catch (Exception ex)
{
new LogException(ex, true);
}
finally
{
}
}
public HttpResponseMessage Delete()
{
var code = HttpStatusCode.InternalServerError;
var rsp = "";
try
{
CloudTable tableReference = QuoteDB.GetQuotesTableReference();
tableReference.DeleteIfExists();
code = HttpStatusCode.OK;
}
catch (Exception ex)
{
new LogException(ex);
rsp = ex.ToString();
}
finally
{
}
return(Request.CreateResponse(code, rsp));
}
private List <QuoteRec> GetRecordsFromDatabase(string filter)
{
List <QuoteRec> results = new List <QuoteRec>();
CloudTable tableReference = QuoteDB.GetQuotesTableReference();
// WIP this is poor performance cause it pulls all data from Table Space before it checks for contents
// WIP this is poor performance cause it pulls all data from Table Space before it checks for contents
// WIP this is poor performance cause it pulls all data from Table Space before it checks for contents
TableQuery <QuoteTableEntity> query = new TableQuery <QuoteTableEntity>();
filter = filter.ToLower();
foreach (QuoteTableEntity qte in tableReference.ExecuteQuery(query))
{
if (qte.ActualQuoteRec.ToLower().Contains(filter))
{
QuoteRec qr = qte.ExtractQuoteRecord();
results.Add(qr);
}
}
// WIP next attempt, review how to get context and reference table
// http://msdn.microsoft.com/en-us/library/azure/dd894039.aspx
//
//// WIP: this returns 501 Not Supported from Azure
//TableQuery<QuoteTableEntity> tq = tableReference.CreateQuery<QuoteTableEntity>();
//var selected = tq.Where( d=>d.ActualQuoteRec.Contains(filter));
//foreach (var qtr in selected)
//{
// results.Add( (QuoteRec)qtr.ExtractQuoteRecord());
//}
return(results);
}
