private static ShardMapManager GetSqlShardMapManager(
string connectionString,
ShardMapManagerLoadPolicy loadPolicy,
RetryBehavior retryBehavior,
EventHandler <RetryingEventArgs> retryEventHandler,
bool throwOnFailure)
{
Debug.Assert(connectionString != null);
Debug.Assert(retryBehavior != null);
SqlShardMapManagerCredentials credentials = new SqlShardMapManagerCredentials(connectionString);
StoreOperationFactory storeOperationFactory = new StoreOperationFactory();
IStoreResults result;
TransientFaultHandling.RetryPolicy retryPolicy = new TransientFaultHandling.RetryPolicy(
new ShardManagementTransientErrorDetectionStrategy(retryBehavior),
RetryPolicy.DefaultRetryPolicy.GetRetryStrategy());
EventHandler <TransientFaultHandling.RetryingEventArgs> handler = (sender, args) =>
{
if (retryEventHandler != null)
{
retryEventHandler(sender, new RetryingEventArgs(args));
}
};
try
{
retryPolicy.Retrying += handler;
using (IStoreOperationGlobal op = storeOperationFactory.CreateGetShardMapManagerGlobalOperation(
credentials,
retryPolicy,
throwOnFailure ? "GetSqlShardMapManager" : "TryGetSqlShardMapManager",
throwOnFailure))
{
result = op.Do();
}
}
finally
{
retryPolicy.Retrying -= handler;
}
return(result.Result == StoreResult.Success ?
new ShardMapManager(
credentials,
new SqlStoreConnectionFactory(),
storeOperationFactory,
new CacheStore(),
loadPolicy,
RetryPolicy.DefaultRetryPolicy,
retryBehavior,
retryEventHandler) :
null);
}
private static ShardMapManager CreateSqlShardMapManagerImpl(
string connectionString,
ShardMapManagerCreateMode createMode,
RetryBehavior retryBehavior,
EventHandler <RetryingEventArgs> retryEventHandler,
Version targetVersion)
{
ExceptionUtils.DisallowNullArgument(connectionString, "connectionString");
ExceptionUtils.DisallowNullArgument(retryBehavior, "retryBehavior");
if (createMode != ShardMapManagerCreateMode.KeepExisting &&
createMode != ShardMapManagerCreateMode.ReplaceExisting)
{
throw new ArgumentException(
StringUtils.FormatInvariant(
Errors._General_InvalidArgumentValue,
createMode,
"createMode"),
"createMode");
}
using (ActivityIdScope activityIdScope = new ActivityIdScope(Guid.NewGuid()))
{
Tracer.TraceInfo(
TraceSourceConstants.ComponentNames.ShardMapManagerFactory,
"CreateSqlShardMapManager",
"Start; ");
Stopwatch stopwatch = Stopwatch.StartNew();
SqlShardMapManagerCredentials credentials = new SqlShardMapManagerCredentials(connectionString);
TransientFaultHandling.RetryPolicy retryPolicy = new TransientFaultHandling.RetryPolicy(
new ShardManagementTransientErrorDetectionStrategy(retryBehavior),
RetryPolicy.DefaultRetryPolicy.GetRetryStrategy());
EventHandler <TransientFaultHandling.RetryingEventArgs> handler = (sender, args) =>
{
if (retryEventHandler != null)
{
retryEventHandler(sender, new RetryingEventArgs(args));
}
};
try
{
retryPolicy.Retrying += handler;
// specifying targetVersion as GlobalConstants.GsmVersionClient to deploy latest store by default.
using (IStoreOperationGlobal op = new StoreOperationFactory().CreateCreateShardMapManagerGlobalOperation(
credentials,
retryPolicy,
"CreateSqlShardMapManager",
createMode,
targetVersion))
{
op.Do();
}
stopwatch.Stop();
Tracer.TraceInfo(
TraceSourceConstants.ComponentNames.ShardMapManagerFactory,
"CreateSqlShardMapManager",
"Complete; Duration: {0}",
stopwatch.Elapsed);
}
finally
{
retryPolicy.Retrying -= handler;
}
return(new ShardMapManager(
credentials,
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
new CacheStore(),
ShardMapManagerLoadPolicy.Lazy,
RetryPolicy.DefaultRetryPolicy,
retryBehavior,
retryEventHandler));
}
}