internal ConnectionManager(string connectionString_Write, string[] connectionStrings_Read)
{
this.ConnectionString_Write = connectionString_Write;
this.ConnectionStrings_Read = connectionStrings_Read?.Distinct()?.ToArray();
//默认当前连接字符串是写
this.CurrentConnectionString = connectionString_Write;
//初始化
//如果写字符串不需要负载策略，则直接返回
if (ConnectionStrings_Read == null || !ConnectionStrings_Read.Any() || ConnectionStrings_Read.Length == 1)
return;
connectionStatuses = new List<ConnectionStatus>();
//初始化连接使用情况集合
ConnectionStrings_Read.Distinct().ToArray().Foreach(item => connectionStatuses.Add(new ConnectionStatus { HashKey = item.GetHashCode(), ConnectionString = item, Count = 0 }));
}
/// <summary>
/// constructed function
/// </summary>
/// <param name="connectionString_Write">the master Database ConnectionString (Only one)</param>
/// <param name="connectionStrings_Read">the slave Database ConnectionStrings</param>
internal ConnectionManager(string connectionString_Write, string[] connectionStrings_Read)
{
this.ConnectionString_Write = connectionString_Write.ToFormativeConnectionString();
this.ConnectionStrings_Read = connectionStrings_Read?.Select(c => c.ToFormativeConnectionString()).Distinct()?.ToArray();
this.CurrentConnectionString = this.ConnectionString_Write;
//don't need Load Balance Strategy
if (ConnectionStrings_Read == null || !ConnectionStrings_Read.Any() || ConnectionStrings_Read.Length == 1)
{
return;
}
this.connectionStatuses = new List <ConnectionStatus>();
//Initialize connection usage collection
ConnectionStrings_Read.Distinct().ToArray().Foreach(item => connectionStatuses.Add(new ConnectionStatus {
HashKey = item.GetHashCode(), ConnectionString = item, Count = 0
}));
}
