// in T
public static bool ExecFill <T>(this ISqlProc proc, IList <T> list,
IDataMapHelper <T> mapper,
Action <double> progress = null) where T : class // , TMap : IDataMapHelper
{
Ai.Guard.Check(proc.Connection != null, "proc.Connection null error in ExecFill");
Ai.Guard.Check(list != null, "list null error in ExecFill");
if (proc.Connection.State != ConnectionState.Open)
{
proc.Connection.Open();
}
using (var command = proc.CreateCommand())
{
if (progress != null)
{
progress(0.0);
}
using (SqlDataReader dataReader = command.ExecuteReader())
{
var results = list as IList <T>;
if (!dataReader.Read())
{
if (progress != null)
{
progress(1.0);
}
return(false);
}
// Task<T> GetFieldValueAsync<T>(int i, CancellationToken cancellationToken);
var helper = mapper; // new DbDataMapHelper<T>();
helper.GetProperties(dataReader);
do
{
object[] objVal = helper.DbRecordArray();
// int ret =
dataReader.GetValues(objVal);
T val = helper.SetValues(objVal);
results.Add(val);
}while (dataReader.Read());
if (progress != null)
{
progress(1.0);
}
return(true);
}
}
}
public bool Prepare(ISqlProc proc, Action <SqlTableMapper, DbDataReader> parser = null, int?commandTimeout = null)
{
if (state != StateExec.Init)
{
this.Dispose();
}
if (parser != null)
{
base.propertiesParser = parser;
}
LastRow = null;
var conn = proc.OpenConnection();
if (conn == null)
{
return(false);
}
cmd = proc.CreateCommand();
cmd.Connection = conn;
if (conn.State != ConnectionState.Open)
{
conn.Open();
}
if (commandTimeout.HasValue)
{
cmd.CommandTimeout = commandTimeout.Value;
}
cmd.Prepare();
dataReader = cmd.ExecuteReader(CommandBehavior.CloseConnection | CommandBehavior.SingleResult);
state = StateExec.Prepared;
if (dataReader.Read())
{
// First record
(this as IDataMapHelper <object[]>).GetProperties(dataReader);
var helper = this;
object[] objVal = helper.DbRecordArray();
// first record array
dataReader.GetValues(objVal);
LastRow = helper.SetValues(objVal);
return(true);
}
return(false);
}
public static SqlDataReader ExecuteWithReconnect(this ISqlProc proc)
{
var lastErr = proc.LastError;
var cmd = proc.CreateCommand() as SqlCommand;
var reader = ExecuteReaderRetry(cmd, proc,
retry: () => GetSqlCommandReconnect(proc));
lastErr = proc.LastError;
if (lastErr is SqlException)
{
throw lastErr;
}
else if (reader == null)
{
proc.LastError = new Exception(String.Format("procedure error {0}", proc));
throw proc.LastError;
}
return(reader);
}
public static SqlCommand GetSqlCommandReconnect(this ISqlProc proc)
{
proc.Connection = null;
proc.CloseOnDispose = true;
if (proc is SqlProc)
{
var sqlProc = proc as SqlProc;
if (sqlProc.Context != null)
{
sqlProc.Context.AssureOpen(withCommand: true);
sqlProc.Connection = sqlProc.Context.SqlConnection;
}
else
{
sqlProc.OpenConnection();
}
}
else
{
proc.Connection = proc.OpenConnection();
}
return(proc.CreateCommand() as SqlCommand);
}
public static IEnumerable <object[]> ExecEnumerable(this ISqlProc proc,
IDataMapHelper <object[]> mapper,
Action <double> progress = null, Action <SqlField[]> onReadFields = null)
{
Ai.Guard.Check(proc.Connection != null, "proc.Connection null error in ExecFill");
using (SqlConnection connection = new SqlConnection(proc.ConnectionString()))
{
if (connection.State != ConnectionState.Open)
{
connection.Open();
if (connection.State != ConnectionState.Open)
{
yield break;
}
}
if (connection.Database != proc.DbName)
{
connection.ChangeDatabase(proc.DbName);
}
using (var command = proc.CreateCommand())
{
command.Connection = connection;
if (progress != null)
{
progress(0.0);
}
using (SqlDataReader dataReader = command.ExecuteReader())
{
if (!dataReader.Read())
{
if (progress != null)
{
progress(1.0);
}
yield break;
}
// Task<T> GetFieldValueAsync<T>(int i, CancellationToken cancellationToken);
var helper = mapper; // new DbDataMapHelper<T>();
helper.GetProperties(dataReader);
if (onReadFields != null)
{
onReadFields(helper.GetFields(dataReader));
}
do
{
object[] objVal = helper.DbRecordArray();
dataReader.GetValues(objVal);
object[] val = helper.SetValues(objVal);
yield return(val);
}while (dataReader.Read());
if (progress != null)
{
progress(1.0);
}
}
}
}
}
// Unsafe
public static SqlDataReader ExecMultiReader(this ISqlProc proc,
Action <SqlCommand> setup = null,
Action <Exception> onError = null,
Action <double> progress = null)
{
var command = proc.CreateCommand();
//if (command.Connection == null || command.Connection.State != ConnectionState.Open)
var connStr = proc.ConnectionString();
Guard.Check(!string.IsNullOrWhiteSpace(connStr), "Exec MultiReader connection error");
SqlConnection connection = new SqlConnection(connStr);
if (connection.State != ConnectionState.Open)
{
connection.Open();
if (connection.State != ConnectionState.Open)
{
return(null);
}
}
if (connection.Database != proc.DbName)
{
connection.ChangeDatabase(proc.DbName);
}
command.Connection = connection;
if (setup != null)
{
setup(command);
}
if (progress != null)
{
progress(0.0);
}
SqlDataReader dataReader = null;
if (onError != null)
{
try
{
dataReader = command.ExecuteReader(behavior: CommandBehavior.CloseConnection);
}
catch (Exception ex) { onError(ex); }
}
else
{
dataReader = command.ExecuteReader(behavior: CommandBehavior.CloseConnection);
}
if (dataReader != null && dataReader.IsClosed) // !dataReader.Read())
{
if (progress != null)
{
progress(1.0);
}
return(null);
}
return(dataReader);
}
