public TableRule(TableRuleConfiguration tableRuleConfig, ShardingDataSourceNames shardingDataSourceNames,
string defaultGenerateKeyColumn)
{
LogicTable = tableRuleConfig.LogicTable.ToLower();
List <string> dataNodes = tableRuleConfig.ActualDataNodes ?? new List <string>(0);
// List<string> dataNodes = new InlineExpressionParser(tableRuleConfig.GetActualDataNodes()).splitAndEvaluate();
// dataNodeIndexMap = new HashMap<>(dataNodes.size(), 1);
dataNodeIndexMap = new Dictionary <DataNode, int>(dataNodes.Count);
ActualDataNodes = IsEmptyDataNodes(dataNodes)
? GenerateDataNodes(tableRuleConfig.LogicTable, shardingDataSourceNames.DataSourceNames) : GenerateDataNodes(dataNodes, shardingDataSourceNames.DataSourceNames);
//ActualDataNodes = GenerateDataNodes(tableRuleConfig.LogicTable, shardingDataSourceNames.DataSourceNames);
actualTables = GetActualTables();
DatabaseShardingStrategy = null == tableRuleConfig.DatabaseShardingStrategyConfig
? null
: ShardingStrategyFactory.NewInstance(tableRuleConfig.DatabaseShardingStrategyConfig);
TableShardingStrategy = null == tableRuleConfig.TableShardingStrategyConfig
? null
: ShardingStrategyFactory.NewInstance(tableRuleConfig.TableShardingStrategyConfig);
KeyGeneratorConfiguration keyGeneratorConfiguration = tableRuleConfig.KeyGeneratorConfig;
generateKeyColumn =
null != keyGeneratorConfiguration && !string.IsNullOrWhiteSpace(keyGeneratorConfiguration.Column)
? keyGeneratorConfiguration.Column
: defaultGenerateKeyColumn;
ShardingKeyGenerator = ContainsKeyGeneratorConfiguration(tableRuleConfig)
? new ShardingKeyGeneratorServiceLoader().NewService(tableRuleConfig.KeyGeneratorConfig.Type,
tableRuleConfig.KeyGeneratorConfig.Properties)
: null;
// CheckRule(dataNodes);
}
private IShardingStrategy CreateDefaultShardingStrategy(IShardingStrategyConfiguration shardingStrategyConfiguration)
{
if (shardingStrategyConfiguration != null)
{
return(ShardingStrategyFactory.NewInstance(shardingStrategyConfiguration) ?? new NoneShardingStrategy());
}
return(new NoneShardingStrategy());
}