internal static DbConfiguration Get(DbContextOption dbContextOption)
{
Guard.NotNull(dbContextOption, "dbContextOption");
DbConfiguration cfg;
items.TryGetValue(dbContextOption.Container, out cfg);
if (cfg == null)
{
//自动配置
cfg = DbConfiguration.Configure(dbContextOption);
}
//if(cfg.sqlLogger == null)
//{
// cfg.sqlLogger = dbContextOption.Logger;
//}
return(cfg);
}
//连接字符串名称：基于Config文件中连接字符串的配置
//const string connectionStringName = "DB_Oracle_ConnStr";
//构造dbConfiguration 对象
//static DbConfiguration dbConfiguration;
//static ProtocolDbContext()
//{
// DbContextOption dbContextOption = new DbContextOption() {
// Container = "DB_Oracle_ConnStr",
// ConnectionString = "",
// MappingFile = ""
// };
// if (!DbConfiguration.Items.TryGetValue(dbContextOption.Container, out dbConfiguration))
// {
// dbConfiguration = DbConfiguration
// .Configure(dbContextOption)
// // .SetSqlLogger(() =>SqlLog.Trace)
// .SetMappingConversion(MappingConversion.Plural)
// .AddClass<ProtocolInfo>()//注册映射类
// .AddClass<ProtocolCfgInfo>()//注册映射类
// ;
// }
//}
public ProtocolDbContext(DbContextOption dbContextOption) : base(dbContextOption)
{
}
/// <summary>
/// 得到工作单元对象
/// </summary>
/// <param name="dbContextOption">配置信息</param>
/// <returns></returns>
public static IDbContext Get(DbContextOption dbContextOption)
{
Guard.NotNullOrEmpty(dbContextOption.Container, "dbConfigurationName");
return(DbConfiguration.Configure(dbContextOption).CreateDbContext());
}
/// <summary>
/// 根据dbConfigurationName 创建DbContext对象
/// </summary>
/// <param name="dbConfigurationName"></param>
public DbContext(DbContextOption dbContextOption) : this(DbConfiguration.Get(dbContextOption))
{
}
/// <summary>
/// 通过connectionStringName对象创建DbConfiguration对象（可以用于配置文件中有多个数据库连接字符串配置）
/// </summary>
/// <param name="dbContextOption"></param>
/// <returns></returns>
public static DbConfiguration Configure(DbContextOption dbContextOption)
{
Guard.NotNullOrEmpty(dbContextOption.Container, "connectionStringName");
DbConfiguration cfg;
if (items.TryGetValue(dbContextOption.Container, out cfg))
{
if (cfg.sqlLogger == null)
{
cfg.SetSqlLogger(() => dbContextOption.LogggerFactory.CreateLogger(dbContextOption.Container));
}
return(cfg);
}
//var item = UCloudConfiguration.Current.GetConnectionString(connectionStringName);
if (string.IsNullOrEmpty(dbContextOption.Provider))
{
throw new ConfigurationErrorsException("connectionString.ProviderName");
}
var connectionString = dbContextOption.ConnectionString;
if (string.IsNullOrEmpty(connectionString))
{
throw new ConfigurationErrorsException("ConnectionString");
}
DbProviderFactory factory = null;
try
{
factory = DbProviderFactoriesEx.GetFactory(dbContextOption.Provider);
}
catch (Exception ex)
{
throw new ConfigurationErrorsException(dbContextOption.Provider + " Provider name invalid for" + dbContextOption.Container, ex);
}
cfg = new DbConfiguration(dbContextOption.Provider, dbContextOption.Container, connectionString, dbContextOption.Default, factory);
if (!string.IsNullOrEmpty(dbContextOption.MappingFile))
{
cfg.AddFile(dbContextOption.MappingFile);
}
else if (!string.IsNullOrEmpty(dbContextOption.ModuleAssemblyName))
{
var assembly = Assembly.Load(dbContextOption.ModuleAssemblyName);
var types = assembly?.GetTypes();
var list = types?.Where(t =>
t.IsClass && !t.IsGenericType && !t.IsAbstract &&
t.GetAttribute <TableAttribute>() != null).ToList();
if (list != null && list.Any())
{
list.ForEach(t =>
{
cfg.AddClass(t);
});
}
}
cfg.SetSqlLogger(() => dbContextOption.LogggerFactory.CreateLogger(dbContextOption.Container));
lock (items)
items[cfg.Name] = cfg;
AutoMatchDialect(cfg, connectionString, dbContextOption.Provider, factory); if (dbContextOption.ConnectionString != null)
{
cfg.MakeDefault();
}
return(cfg);
}
