public DBObjectDistributedTable GetDistributedTable(DBObjectTableSchemaAdapter schemaAdapter, string tableName)//DBConnection connection, string tableName)
{
if (schemaAdapter == null)
{
throw new ArgumentNullException("schemaAdapter");
}
if (String.IsNullOrEmpty(tableName))
{
throw new ArgumentNullException("tableName");
}
DBConnection connection = schemaAdapter.PrimaryDatabaseConnection;
string tableKey = string.Format("{0}.{1}.{2}", connection.DisplayName.ToLower(), schemaAdapter.ClassDefinition.TypeUniqueKey, tableName);
this.Logger.WriteFormatMessage("Получение распределенной таблицы. Ключ: '{0}'", tableKey);
DBObjectDistributedTable table = null;
if (DBObjectTableActivator.TablesByKey.ContainsKey(tableKey))
{
table = DBObjectTableActivator.TablesByKey[tableKey];
}
else
{
if (!DBObjectTableActivator.LockObjects.ContainsKey(tableKey))
{
lock (DBObjectTableActivator.LokersLocker)
{
if (!DBObjectTableActivator.LockObjects.ContainsKey(tableKey))
{
DBObjectTableActivator.LockObjects.Add(tableKey, new object());
}
}
}
lock (DBObjectTableActivator.LockObjects[tableKey])
{
if (!DBObjectTableActivator.TablesByKey.ContainsKey(tableKey))
{
this.Logger.WriteFormatMessage("Вызов конструктора объекта таблицы. Ключ: '{0}'", tableKey);
table = new DBObjectDistributedTable(schemaAdapter, tableName);
if (!table.TablePartition.Table.Exists)
{
throw new DistributedTableNotFoundException(connection.DisplayName, tableName);
}
}
else
{
table = DBObjectTableActivator.TablesByKey[tableKey];
}
}
}
this.Logger.WriteFormatMessage("Получение распределенной таблицы завершено. Ключ: '{0}'", tableKey);
return(table);
}
internal DBObjectPrincipalTableSchema(DBObjectTableSchemaAdapter objectSchemaAdapter)
: base(objectSchemaAdapter)
{
if (objectSchemaAdapter == null)
{
throw new ArgumentNullException("objectSchemaAdapter");
}
this.ObjectSchemaAdapter = objectSchemaAdapter;
}
internal DBObjectDistributedTablePartition(DBObjectTableSchemaAdapter adapter, string tableName)
: base(adapter)
{
if (String.IsNullOrEmpty(tableName))
{
throw new ArgumentNullException("tableName");
}
this.Name = tableName;
}
/// <summary>
///
/// </summary>
/// <param name="adapter"></param>
/// <param name="tableName"></param>
internal DBObjectDistributedTable(DBObjectTableSchemaAdapter adapter, string tableName)
{
if (adapter == null)
{
throw new ArgumentNullException("adapter");
}
if (String.IsNullOrEmpty(tableName))
{
throw new ArgumentNullException("tableName");
}
this.SchemaAdapter = adapter;
this.TableName = tableName;
}
internal DBObjectIndexSchema(MetadataIndexDefinition indexDefinition, DBObjectTableSchemaAdapter objectSchemaAdapter)
: base(objectSchemaAdapter)
{
if (indexDefinition == null)
{
throw new ArgumentNullException("indexDefinition");
}
if (objectSchemaAdapter == null)
{
throw new ArgumentNullException("objectSchemaAdapter");
}
this.IndexDefinition = indexDefinition;
this.ObjectSchemaAdapter = objectSchemaAdapter;
}
internal DBObjectColumnSchema(MetadataPropertyDefinition propertyDefinition, DBObjectTableSchemaAdapter objectSchemaAdapter)
: base(objectSchemaAdapter)
{
if (propertyDefinition == null)
{
throw new ArgumentNullException("propertyDefinition");
}
if (objectSchemaAdapter == null)
{
throw new ArgumentNullException("objectSchemaAdapter");
}
this.PropertyDefinition = propertyDefinition;
this.ObjectSchemaAdapter = objectSchemaAdapter;
}
public DBObjectDistributedTable EnsureDistributedTable(DBObjectTableSchemaAdapter schemaAdapter, string tableName)
{
if (schemaAdapter == null)
{
throw new ArgumentNullException("schemaAdapter");
}
if (String.IsNullOrEmpty(tableName))
{
throw new ArgumentNullException("tableName");
}
DBConnection connection = schemaAdapter.PrimaryDatabaseConnection;
string tableKey = string.Format("{0}.{1}.{2}", connection.DisplayName.ToLower(), schemaAdapter.ClassDefinition.TypeUniqueKey, tableName);
DBObjectDistributedTable table = null;
this.Logger.WriteFormatMessage("Получение/создание распределенной таблицы. Ключ: '{0}'", tableKey);
if (!DBObjectTableActivator.TablesByKey.ContainsKey(tableKey))
{
if (!DBObjectTableActivator.LockObjects.ContainsKey(tableKey))
{
lock (DBObjectTableActivator.LokersLocker)
{
if (!DBObjectTableActivator.LockObjects.ContainsKey(tableKey))
{
DBObjectTableActivator.LockObjects.Add(tableKey, new object());
}
}
}
lock (DBObjectTableActivator.LockObjects[tableKey])
{
if (!DBObjectTableActivator.TablesByKey.ContainsKey(tableKey))
{
this.Logger.WriteFormatMessage("Вызов конструктора объекта таблицы. Ключ: '{0}'", tableKey);
table = new DBObjectDistributedTable(schemaAdapter, tableName);
this.Logger.WriteFormatMessage("Инициализация объекта таблицы. Ключ: '{0}'", tableKey);
table.TablePartition.Table.Init();
this.Logger.WriteFormatMessage("Инициализация объекта таблицы завершена. Ключ: '{0}'", tableKey);
lock (DBObjectTableActivator.LokersLocker)
{
DBObjectTableActivator.TablesByKey.Add(tableKey, table);
}
}
else
{
table = DBObjectTableActivator.TablesByKey[tableKey];
}
}
}
else
{
table = DBObjectTableActivator.TablesByKey[tableKey];
}
if (table == null)
{
throw new Exception(string.Format("Не удалось получить таблицу файлов, с названием {0}.", tableName));
}
this.Logger.WriteFormatMessage("Получение/создание распределенной таблицы завершено. Ключ: '{0}'", tableKey);
return(table);
}