public void AddOrUpdate(IDataSetting dataSetting)
{
Check.NotNull(dataSetting, nameof(dataSetting));
if (string.IsNullOrEmpty(dataSetting.Name))
{
throw new MapleException("未设置DataSetting名称");
}
if (this.CheckDisposed())
{
throw new ObjectDisposedException("DataProviderFactory");
}
object sync = this._sync;
lock (sync)
{
if (!_dataProviders.ContainsKey(dataSetting.Name))
{
_dataProviders.Add(dataSetting.Name, dataSetting);
}
else
{
_dataProviders[dataSetting.Name] = dataSetting;
}
}
}
public IDataProvider GetDataProvider(string dataSettingName)
{
IDataSetting dataSetting = this.dataSettingContainer.GetDataSetting(dataSettingName);
if (dataSetting == null)
{
throw new MapleException($"未设置[{dataSettingName}]对应的数据库配置信息");
}
IDbTranslator dbTranslator = getDbTranslator(dataSetting);
var databaseContext = new InternalDatabaseContext(dataSetting, dbTranslator);
return(new InternalDataProvider(databaseContext));
}
/// <summary>
/// 保持配置信息
/// </summary>
/// <param name="settings">Data settings</param>
public virtual void SaveSettings(IDataSetting settings)
{
Singleton <IDataSetting> .Instance = settings ?? throw new ArgumentNullException(nameof(settings));
var filePath = CommonHelper.MapPath(DataSettingsFilePath);
//如果文件不存在则创建之
if (!File.Exists(filePath))
{
using (File.Create(filePath)) { }
}
//保存信息
var text = JsonConvert.SerializeObject(Singleton <DataSetting> .Instance, Formatting.Indented);
File.WriteAllText(filePath, text);
}
private IDbTranslator getDbTranslator(IDataSetting dataSetting)
{
IDbTranslator dbTranslator;
switch (dataSetting.DataSouceType)
{
case DataSouceType.MySQL:
dbTranslator = new MySQLTranslator();
break;
case DataSouceType.Oracle:
dbTranslator = new OracleTranslator();
break;
case DataSouceType.Sql2000:
dbTranslator = new Sql2000Translator();
break;
case DataSouceType.Sql2005:
dbTranslator = new Sql2005Translator();
break;
case DataSouceType.Sql2008:
dbTranslator = new Sql2008Translator();
break;
case DataSouceType.Sqlite:
dbTranslator = new SqliteTranslator();
break;
default:
throw new MapleException(string.Format("未知的数据源类型“{0}”。请核实数据源类型配置是否正确。", dataSetting.DataSouceType));
}
return(dbTranslator);
}
/// <summary>
/// 数据库上线文构造函数
/// </summary>
/// <param name="dataSetting"></param>
/// <param name="dbTranslator"></param>
public InternalDatabaseContext(IDataSetting dataSetting, IDbTranslator dbTranslator)
{
this._dataSetting = dataSetting;
this.DbTranslator = dbTranslator;
}