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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();
        }
    }

}
4

1 に答える 1

3

あなたが投稿したコードで、私は最終的にあなたが達成しようとしていることを理解しました.

これらは私がそれを機能させるために行ったことです:

A)表示されるコンパイル エラー:

"Error 1 The type or namespace name 'Connections' does not exist in the namespace 'AOC.SqlServer.Dts' (are you missing an assembly reference?)"

oledb接続マネージャーを取得しようとしている方法が原因です。

ConnectionManager cm = Dts.Connections["oledb"];

Dtsオブジェクトは、スクリプト タスク コンポーネントで使用できる機能です。その行を次のように置き換える必要があります。

ConnectionManager cm = connections["oledb"];

あなたのコードでConnection Manager、この方法で a にアクセスしているのを見たことがあります。

B)接続マネージャーが ADO​​.NET 接続マネージャーか OLEDB 接続マネージャーかを検証するには、コードの次の部分を変更します。

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;
}

まず、クラス レベルでプライベート変数を追加して、接続を保存します。

private DbConnection _connection;

次に、接続が ADO​​.NET であるかどうかを確認するように検証を変更し、そうでない場合は OLEDB であるかどうかを確認するようにしました。

_connection = connections[_connectionName].AcquireConnection(null) as DbConnection;

if (_connection == null)
{
    ConnectionManager cm = connections[_connectionName];
    Microsoft.SqlServer.Dts.Runtime.Wrapper.IDTSConnectionManagerDatabaseParameters100 cmParams = cm.InnerObject as Microsoft.SqlServer.Dts.Runtime.Wrapper.IDTSConnectionManagerDatabaseParameters100;
    _connection = cmParams.GetConnectionForSchema() as OleDbConnection;

    if (_connection == null)
    {
        componentEvents.FireError(0, METHOD_NAME, "The connection is not a valid ADO.NET or OLEDB connection", "", -1);
        return DTSExecResult.Failure;
    }
}

ハードコーディングさ"oledb"れた変数を変数に置き換え、両方の場合で null の_connectionName場合はエラー文字列も変更したことに注意してください。_connection

C) OLEDB プロバイダーを使用してコマンドを実行するには、次の変更が必要でした。

  • 以前に取得した接続を保持する新しい_connection変数を使用します。
  • コマンドに追加するパラメーターOleDbParameterは、SqlParameter.
  • OLE DB .NET プロバイダーは、名前付きパラメーターをサポートしていません。そのためVALUES、文コマンドの一部をINSERT変更して使用する必要があります?

D)これは完全な作業コードです:

using System;
using System.Data;
using System.Data.Common;
using System.Data.OleDb;
using System.Data.SqlClient;
using Microsoft.SqlServer.Dts.Runtime;

//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; }
        }

        private DbConnection _connection;

        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;
                _connection = connections[_connectionName].AcquireConnection(null) as DbConnection;

                if (_connection == null)
                {
                    ConnectionManager cm = connections[_connectionName];
                    Microsoft.SqlServer.Dts.Runtime.Wrapper.IDTSConnectionManagerDatabaseParameters100 cmParams = cm.InnerObject as Microsoft.SqlServer.Dts.Runtime.Wrapper.IDTSConnectionManagerDatabaseParameters100;
                    _connection = cmParams.GetConnectionForSchema() as OleDbConnection;

                    if (_connection == null)
                    {
                        componentEvents.FireError(0, METHOD_NAME, "The connection is not a valid ADO.NET or OLEDB 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 = null;

                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)
                {
                    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)";

                    command = new SqlCommand();

                    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));
                }
                else if (_connection is OleDbConnection)
                {
                    commandText = @"INSERT INTO SSISLog (EventType,PackageName,TaskName,EventCode,EventDescription,PackageDuration,Host,ExecutionID,EventHandlerDateTime,UID)
                                    VALUES (?,?,?,?,?,?,?,?,?,?)";

                    command = new OleDbCommand();

                    command.Parameters.Add(new OleDbParameter("@EventType", _eventType));
                    command.Parameters.Add(new OleDbParameter("@PackageName", _packageName));
                    command.Parameters.Add(new OleDbParameter("@TaskName", _taskName));
                    command.Parameters.Add(new OleDbParameter("@EventCode", _errorCode ?? string.Empty));
                    command.Parameters.Add(new OleDbParameter("@EventDescription", _errorDescription ?? string.Empty));
                    command.Parameters.Add(new OleDbParameter("@PackageDuration", _packageDuration));
                    command.Parameters.Add(new OleDbParameter("@Host", _machineName));
                    command.Parameters.Add(new OleDbParameter("@ExecutionID", _executionid));
                    command.Parameters.Add(new OleDbParameter("@handlerdatetime", _handlerdatetime));
                    command.Parameters.Add(new OleDbParameter("@uid", _uid));
                }

                command.CommandText = commandText;
                command.CommandType = CommandType.Text;
                command.Connection = _connection;

                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();
        }
    }
}

念のため、カスタム コンポーネントの開発、デプロイ、およびデバッグに役立つと思われるリンクをいくつか残しておきます (ただし、既に使用している可能性があります)。

http://bennyaustin.wordpress.com/2009/06/30/steps-to-build-and-deploy-custom-ssis-components/

http://msdn.microsoft.com/en-us/library/ms403356%28v=sql.105%29.aspx

http://toddmcdermid.blogspot.com.ar/2009/06/converting-your-script-task-into-custom_22.html

乾杯。

于 2012-07-07T23:00:36.823 に答える