/// <summary>
/// Creates the associated <see cref="DataStore" /> for new cacheable type
/// </summary>
/// <param name="request"></param>
/// <param name="client"></param>
private void RegisterType(RegisterTypeRequest request, IClient client)
{
try
{
var typeDescription = request.CollectionSchema;
var collectionName = typeDescription.CollectionName;
var dataStore = DataStores.TryGetValue(collectionName);
if (ShardCount == 0) // not initialized
{
ShardIndex = request.ShardIndex;
ShardCount = request.ShardsInCluster;
}
else // check it didn't change
{
if (ShardIndex != request.ShardIndex || ShardCount != request.ShardsInCluster)
{
throw new NotSupportedException(
$"Cluster configuration changed. This node was shard {ShardIndex} / {ShardCount} and now is {request.ShardIndex} / {request.ShardsInCluster}");
}
}
if (dataStore != null) //type already registered
{
//if the type description changed reindex
if (!typeDescription.Equals(dataStore.CollectionSchema))
{
var newDataStore = DataStore.Reindex(dataStore, typeDescription);
DataStores[collectionName] = newDataStore;
_serviceContainer.SchemaPersistence.SaveSchema(GenerateSchema());
}
}
else // new type, store it in the type dictionary and initialize its DataStore
{
var newDataStore =
new DataStore(typeDescription, new NullEvictionPolicy(), _serviceContainer.NodeConfig.FullTextConfig);
DataStores.Add(collectionName, newDataStore);
_serviceContainer.SchemaPersistence.SaveSchema(GenerateSchema());
}
client?.SendResponse(new NullResponse());
}
catch (Exception e)
{
client?.SendResponse(new ExceptionResponse(e));
}
}
private void InternalProcessRegisterType(RegisterTypeRequest request)
{
var typeDescription = request.TypeDescription;
if (ShardCount == 0) // not initialized
{
ShardIndex = request.ShardIndex;
ShardCount = request.ShardsInCluster;
}
else // check it didn't change
{
if (ShardIndex != request.ShardIndex || ShardCount != request.ShardsInCluster)
{
throw new NotSupportedException(
$"Cluster configuration changed. This node was shard {ShardIndex} / {ShardCount} and now is {request.ShardIndex} / {request.ShardsInCluster}");
}
}
if (_knownTypes.ContainsKey(typeDescription.FullTypeName)) //type already registered
{
//check that the type description is the same
if (!typeDescription.Equals(_knownTypes[typeDescription.FullTypeName]))
{
var message =
$"The type {typeDescription.FullTypeName} is already registered but the type description is different";
throw new NotSupportedException(message);
}
}
else // new type, store it in the type dictionary and initialize its DataStore
{
_knownTypes.Add(typeDescription.FullTypeName, typeDescription);
PersistenceEngine?.UpdateSchema(GenerateSchema());
var cfg = Config.ConfigByType.ContainsKey(typeDescription.FullTypeName)
? Config.ConfigByType[typeDescription.FullTypeName]
: new ServerDatastoreConfig();
var evictionPolicy = EvictionPolicyFactory.CreateEvictionPolicy(cfg.Eviction);
var newDataStore =
new DataStore(typeDescription, evictionPolicy);
Dbg.CheckThat(Profiler != null);
newDataStore.Profiler = Profiler;
DataStores.Add(typeDescription.FullTypeName, newDataStore);
}
}