public SagaJsonMapperTests()
{
var connectionString = Environment.GetEnvironmentVariable("AzureStorageQueueTransport.ConnectionString");
var account = CloudStorageAccount.Parse(connectionString);
var cloudTableClient = account.CreateCloudTableClient();
var tableName = typeof(SagaDownloaderTestState).Name;
cloudTable = cloudTableClient.GetTableReference(tableName);
cloudTable.CreateIfNotExists();
mapper = new SagaJsonMapper(connectionString, tableName);
}
private void DownloadConflictingSagas(string sagaTypeName, string propertyName)
{
var sagaDirectory = GetSagaDirectory(sagaTypeName);
Console.WriteLine();
if (EnsureEmptyDirectoryExists(sagaDirectory) == false)
{
Console.WriteLine("Directory '{0}' must be empty", sagaTypeName);
return;
}
var cloudTable = GetTable(sagaTypeName);
if (cloudTable.Exists() == false)
{
Console.WriteLine("Table for saga '{0}' does not exist", sagaDirectory);
return;
}
var mapper = new SagaJsonMapper(connectionString, sagaTypeName);
var sagaIndexer = SagaIndexer.Get(connectionString, sagaTypeName, propertyName);
Console.WriteLine($"Dowloading duplicates of saga '{sagaTypeName}' to '{sagaDirectory}'.");
sagaIndexer.SearchForDuplicates((collidingPropertyValueHash, collidingSagas) =>
{
var alreadyDownloaded = new HashSet <Guid>();
var workDir = Path.Combine(sagaDirectory, collidingPropertyValueHash.ToString());
if (Directory.Exists(workDir) == false)
{
Directory.CreateDirectory(workDir);
}
else
{
var files = Directory.EnumerateFiles(workDir).Select(filePath => filePath.Substring(filePath.LastIndexOf("\\", StringComparison.Ordinal) + 1)).Select(Guid.Parse);
foreach (var sagaId in files)
{
alreadyDownloaded.Add(sagaId);
}
}
foreach (var sagaId in collidingSagas.ToArray().Except(alreadyDownloaded))
{
using (var file = File.OpenWrite(Path.Combine(workDir, sagaId.ToString())))
{
using (var sw = new StreamWriter(file))
{
Console.WriteLine($"* Downloading saga {sagaId}");
mapper.Download(sagaId, sw);
}
}
}
});
}
private void UploadResolvedConflicts(string sagaTypeName)
{
var sagaDirectory = GetSagaDirectory(sagaTypeName);
var cloudTable = GetTable(sagaTypeName);
if (cloudTable.Exists() == false)
{
return;
}
Console.WriteLine();
var mapper = new SagaJsonMapper(connectionString, sagaTypeName);
foreach (var duplicatedSagaToResolve in new DirectoryInfo(sagaDirectory).GetDirectories())
{
var sagaInstances = duplicatedSagaToResolve.GetFiles();
Console.WriteLine();
Console.WriteLine("Resolving conflict between following sagas:");
var anySuccess = false;
var toDelete = new List <Guid>();
foreach (var instance in sagaInstances)
{
using (var reader = new JsonTextReader(new StreamReader(instance.OpenRead())))
{
var id = Guid.Parse(instance.Name);
var status = mapper.TryUpload(id, reader);
if (status == SagaJsonMapper.UploadStatus.Selected)
{
anySuccess = true;
}
else
{
toDelete.Add(id);
}
Console.WriteLine(" * {0} {1}", instance.Name, status);
}
}
Console.WriteLine();
if (anySuccess)
{
Console.WriteLine(" Resolving successful. Deleting following duplicates:");
foreach (var id in toDelete)
{
var status = (HttpStatusCode)cloudTable.Execute(TableOperation.Delete(new TableEntity(id.ToString(), id.ToString())
{
ETag = "*"
})).HttpStatusCode;
if (status == HttpStatusCode.OK || status == HttpStatusCode.NoContent)
{
Console.WriteLine(" * {0}", id);
}
}
}
else
{
Console.WriteLine(" No conflicting saga marked with $Choose_this_saga: true");
}
}
}