SSIS チーム ブログから次のコードを入手して、OLEDB 接続の種類をキャストし、AcquireConnection () メソッドで使用できるようにしました。Dts.Connections 部分が機能しない理由がわかりません。それを機能させるために追加する必要があるライブラリを知りません。Dts.RuntimeWrap など、最も重要なものをほとんど追加しました。質問に関する詳細情報が必要な場合はお知らせください。
ConnectionManager cm = Dts.Connections["oledb"];
Microsoft.SqlServer.Dts.Runtime.Wrapper.IDTSConnectionManagerDatabaseParameters100 cmParams = cm.InnerObject as Microsoft.SqlServer.Dts.Runtime.Wrapper.IDTSConnectionManagerDatabaseParameters100;
OleDbConnection conn = cmParams.GetConnectionForSchema() as OleDbConnection;
EDIT 以下は、このコンポーネントのコード全体です。
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using Microsoft.SqlServer.Dts.Runtime;
using System.Data.OleDb;
using System.Data.Common;
using System.Linq;
using System.Configuration;
using System.Collections;
//using System.Data.OleDb;
namespace AOC.SqlServer.Dts.Tasks
{
[DtsTask(
DisplayName = "Custom Logging Task",
Description = "Writes logging info into a table")]
public class CustomLoggingTask : Task
{
private string _packageName;
private string _taskName;
private string _errorCode;
private string _errorDescription;
private string _machineName;
private double _packageDuration;
private string _connectionName;
private string _eventType;
private string _executionid;
private DateTime _handlerdatetime;
private string _uid;
public string ConnectionName
{
set
{
_connectionName = value;
}
get
{
return _connectionName;
}
}
public string Event
{
set
{
_eventType = value;
}
get
{
return _eventType;
}
}
public override DTSExecResult Validate(Connections connections, VariableDispenser variableDispenser, IDTSComponentEvents componentEvents, IDTSLogging log)
{
const string METHOD_NAME = "CustomLoggingTask-Validate";
try
{
if (string.IsNullOrEmpty(_eventType))
{
componentEvents.FireError(0, METHOD_NAME, "The event property must be specified", "", -1);
return DTSExecResult.Failure;
}
if (string.IsNullOrEmpty(_connectionName))
{
componentEvents.FireError(0, METHOD_NAME, "No connection has been specified", "", -1);
return DTSExecResult.Failure;
}
//SqlConnection connection = connections[_connectionName].AcquireConnection(null) as SqlConnection;
DbConnection connection = connections[_connectionName].AcquireConnection(null) as DbConnection;
ConnectionManager cm = Dts.Connections["oledb"];
Microsoft.SqlServer.Dts.Runtime.Wrapper.IDTSConnectionManagerDatabaseParameters100 cmParams = cm.InnerObject as Microsoft.SqlServer.Dts.Runtime.Wrapper.IDTSConnectionManagerDatabaseParameters100;
OleDbConnection conn = cmParams.GetConnectionForSchema() as OleDbConnection;
if (connection == null)
{
componentEvents.FireError(0, METHOD_NAME, "The connection is not a valid ADO.NET connection", "", -1);
return DTSExecResult.Failure;
}
if (!variableDispenser.Contains("System::SourceID"))
{
componentEvents.FireError(0, METHOD_NAME, "No System::SourceID variable available. This task can only be used in an Event Handler", "", -1);
return DTSExecResult.Failure;
}
return DTSExecResult.Success;
}
catch (Exception exc)
{
componentEvents.FireError(0, METHOD_NAME, "Validation Failed: " + exc.ToString(), "", -1);
return DTSExecResult.Failure;
}
}
public override DTSExecResult Execute(Connections connections, VariableDispenser variableDispenser, IDTSComponentEvents componentEvents, IDTSLogging log, object transaction)
{
try
{
string commandText =
@"INSERT INTO SSISLog (EventType, PackageName, TaskName, EventCode, EventDescription, PackageDuration, Host, ExecutionID, EventHandlerDateTime,UID)
VALUES (@EventType, @PackageName, @TaskName, @EventCode, @EventDescription, @PackageDuration, @Host, @Executionid, @handlerdatetime,@uid)";
ReadVariables(variableDispenser);
DbConnection connection = connections[_connectionName].AcquireConnection(transaction) as DbConnection;
//SqlConnection connection = (SqlConnection)connections[_connectionName].AcquireConnection(transaction);
DbCommand command = null;
//using (SqlCommand command = new SqlCommand())
if (connection is SqlConnection)
command = new SqlCommand();
else if (connection is OleDbConnection)
command = new OleDbCommand();
{
command.CommandText = commandText;
command.CommandType = CommandType.Text;
command.Connection = connection;
command.Parameters.Add(new SqlParameter("@EventType", _eventType));
command.Parameters.Add(new SqlParameter("@PackageName", _packageName));
command.Parameters.Add(new SqlParameter("@TaskName", _taskName));
command.Parameters.Add(new SqlParameter("@EventCode", _errorCode ?? string.Empty));
command.Parameters.Add(new SqlParameter("@EventDescription", _errorDescription ?? string.Empty));
command.Parameters.Add(new SqlParameter("@PackageDuration", _packageDuration));
command.Parameters.Add(new SqlParameter("@Host", _machineName));
command.Parameters.Add(new SqlParameter("@ExecutionID", _executionid));
command.Parameters.Add(new SqlParameter("@handlerdatetime", _handlerdatetime));
command.Parameters.Add(new SqlParameter("@uid", _uid));
command.ExecuteNonQuery();
}
connection.Close();
return DTSExecResult.Success;
}
catch (Exception exc)
{
componentEvents.FireError(0, "CustomLoggingTask-Execute", "Task Errored: " + exc.ToString(), "", -1);
return DTSExecResult.Failure;
}
}
private void ReadVariables(VariableDispenser variableDispenser)
{
variableDispenser.LockForRead("System::StartTime");
variableDispenser.LockForRead("System::PackageName");
variableDispenser.LockForRead("System::SourceName");
variableDispenser.LockForRead("System::MachineName");
variableDispenser.LockForRead("System::ExecutionInstanceGUID");
variableDispenser.LockForRead("System::EventHandlerStartTime");
variableDispenser.LockForRead("User::UID");
bool includesError = variableDispenser.Contains("System::ErrorCode");
if (includesError)
{
variableDispenser.LockForRead("System::ErrorCode");
variableDispenser.LockForRead("System::ErrorDescription");
}
Variables vars = null;
variableDispenser.GetVariables(ref vars);
DateTime startTime = (DateTime)vars["System::StartTime"].Value;
_packageDuration = DateTime.Now.Subtract(startTime).TotalSeconds;
_packageName = vars["System::PackageName"].Value.ToString();
_taskName = vars["System::SourceName"].Value.ToString();
_machineName = vars["System::MachineName"].Value.ToString();
_executionid = vars["System::ExecutionInstanceGUID"].Value.ToString();
_handlerdatetime = (DateTime)vars["System::EventHandlerStartTime"].Value;
_uid = vars["User::UID"].Value.ToString();
if (includesError)
{
_errorCode = vars["System::ErrorCode"].Value.ToString();
_errorDescription = vars["System::ErrorDescription"].Value.ToString();
}
// release the variable locks.
vars.Unlock();
// reset the dispenser
variableDispenser.Reset();
}
}
}