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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using System.Diagnostics;
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using IBM.WMQ;
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using MySql.Data.MySqlClient;
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using System.Globalization;
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namespace DaoMqPump2
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{
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public class Transport
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{
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enum LogfileType {
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LogTransactions,
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LogEvents
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}
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public static string SQL2MQ = "sql2mq";
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public static string MQ2SQL = "mq2sql";
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//private bool enabled;
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TransportController controller;
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StatusData statusData = new StatusData();
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public string name { get; private set; }
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public string direction { get; private set; }
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public string queueName { get; private set; }
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public string mq2sqlInsertQuery { get; private set; }
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public string sql2mqReadQuery { get; private set; }
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public string sql2mqUpdateQuery { get; private set; }
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//public bool lastrunOk { get; private set; }
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//public string lastErrorMessage { get; private set; }
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//public string lastOkTime { get; private set; }
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//public string lastErrorTime { get; private set; }
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//public string lastTransferTime { get; private set; }
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//public int counter { get; private set; }
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public StatusData TransportStatusData
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{
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get
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{
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return this.statusData;
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}
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}
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public bool Enabled
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{
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get {
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return statusData.transportEnabled;
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}
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set
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{
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statusData.transportEnabled = value;
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if (value == true)
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{
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this.addLogEntry("Transport enabled");
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}
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else
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{
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this.addLogEntry("Transport disabled");
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}
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}
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}
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private LinkedList<string> logEntries = new LinkedList<string>();
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public Transport(TransportController controller, string name, string direction, string queueName, string mq2sqlInsertQuery, string sql2mqReadQuery, string sql2mqUpdateQuery, bool enabled)
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{
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this.controller = controller;
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this.name = name;
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this.direction = direction;
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this.queueName = queueName;
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this.mq2sqlInsertQuery = mq2sqlInsertQuery;
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this.sql2mqReadQuery = sql2mqReadQuery;
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this.sql2mqUpdateQuery = sql2mqUpdateQuery;
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statusData.transportEnabled = enabled;
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statusData.lastrunOk = true;
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statusData.counter = 0;
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statusData.lastErrorMessage = statusData.lastOkTime = statusData.lastErrorTime = "";
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addLogEntry( "Starting ... " );
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}
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~Transport()
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{
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addLogEntry("Stopping ... ");
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}
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public void transportMessages()
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{
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if (statusData.transportEnabled == false)
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return;
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Console.WriteLine(name + " -> transportMessages() ");
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statusData.lastrunOk = true;
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int startCounter = statusData.counter;
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if (direction == SQL2MQ)
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{
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transportSql2Mq();
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}
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else
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{
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transportMq2Sql();
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}
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if (statusData.lastrunOk == true)
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{
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statusData.lastOkTime = getNowString();
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if (statusData.counter != startCounter)
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{
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//Vi har transporteret beskeder - så gemmer vi lige transfer tidspunktet
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statusData.lastTransferTime = getNowString();
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}
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}
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else
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{
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addLogEntry(statusData.lastErrorMessage);
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statusData.lastErrorTime = getNowString();
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}
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}
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private void transportSql2Mq()
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{
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MQQueueManager mqMgr = null;
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MQQueue out_queue = null;
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string filename = getLogFilename(LogfileType.LogTransactions);
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using (StreamWriter translog = new StreamWriter(filename, true) )
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try
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{
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//MQ Options
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Hashtable connProps = getConnectionProperties();
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int openOptions = MQC.MQOO_OUTPUT + MQC.MQOO_FAIL_IF_QUIESCING;
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//MySQL Options
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string mysqlString = buildMysqlConnString();
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//MQ objects i v6 implementerer ikke IDisposable og kan derfor ikke bruges med "using" statement
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mqMgr = new MQQueueManager(controller.mqQueueManager, connProps);//stage 1 connect to mq
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out_queue = mqMgr.AccessQueue(queueName, openOptions);
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using (MySqlConnection sqlReadConnection = new MySqlConnection(mysqlString)) //stage 2 connect to mysql
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using (MySqlConnection sqlWriteConnection = new MySqlConnection(mysqlString))
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{
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sqlReadConnection.Open();
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sqlWriteConnection.Open();
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//stage 3 move messages
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string readSql = "CALL " + sql2mqReadQuery + "()";
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MySqlCommand readCmd = new MySqlCommand(readSql, sqlReadConnection);
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MySqlDataReader dataReader = readCmd.ExecuteReader();
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while (dataReader.Read())
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{
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int id = dataReader.GetInt32(0);
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string msgString = dataReader.GetString(1);
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MQPutMessageOptions pmo = new MQPutMessageOptions(); // accept the defaults,
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// same as MQPMO_DEFAULT
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MQMessage msg = new MQMessage();
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msg.Format = MQC.MQFMT_STRING;
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msg.CharacterSet = 1252;
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msg.WriteString(msgString);
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out_queue.Put(msg, pmo);
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//now that the message has been put on queue mark it as such
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string updateSql = "CALL " + sql2mqUpdateQuery + "(" + id + ")";
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MySqlCommand updateCmd = new MySqlCommand(updateSql, sqlWriteConnection);
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int numrows = updateCmd.ExecuteNonQuery();
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translog.WriteLine(getNowString() + " " + msgString);
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if (numrows != 1)
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{
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break;
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}
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statusData.counter++;
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}
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}
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}
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catch (Exception e)
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{
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statusData.lastrunOk = false;
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statusData.lastErrorMessage = name + ".transportMq2Sql error: " + e.GetType().FullName + " " + e.Message;
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Console.WriteLine(statusData.lastErrorMessage);
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Console.WriteLine(e.StackTrace);
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EventLog.WriteEntry("DaoMqPump2", statusData.lastErrorMessage, EventLogEntryType.Warning);
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}
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finally
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{
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if (out_queue != null && out_queue.IsOpen)
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{
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try
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{
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out_queue.Close();
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}
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catch (Exception e)
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{
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Console.WriteLine("Error cleaning up qmgr " + e.Message);
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}
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}
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if (mqMgr != null && mqMgr.IsOpen)
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{
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try
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{
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mqMgr.Close();
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}
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catch (Exception e)
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{
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Console.WriteLine("Error cleaning up qmgr " + e.Message);
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}
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}
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}
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}
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private void transportMq2Sql()
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{
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MQQueueManager mqMgr = null;
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MQQueue in_queue = null;
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string filename = getLogFilename(LogfileType.LogTransactions);
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using (StreamWriter translog = new StreamWriter(filename, true))
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try
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{
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//MQ options
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Hashtable connProps = getConnectionProperties();
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int openOptions = MQC.MQOO_INPUT_AS_Q_DEF + MQC.MQOO_FAIL_IF_QUIESCING;
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//MySQL options
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string mysqlString = buildMysqlConnString();
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//MQ objects i v6 implementerer ikke IDisposable og kan derfor ikke bruges med "using" statement
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mqMgr = new MQQueueManager(controller.mqQueueManager, connProps);//stage 1 connect to mq
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in_queue = mqMgr.AccessQueue(queueName, openOptions);
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using (MySqlConnection sqlConnection = new MySqlConnection(mysqlString)) //stage 2 connect to mysql
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{
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sqlConnection.Open();
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//stage 3 move messages
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bool isContinue = true;
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while (isContinue)
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{
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MQMessage mqMsg = new MQMessage();
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MQGetMessageOptions mqGetMsgOpts = new MQGetMessageOptions();
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mqGetMsgOpts.Options = MQC.MQGMO_SYNCPOINT; //kræver en commit førend at den er fjernet fra køen
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try
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{
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in_queue.Get(mqMsg, mqGetMsgOpts);
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if (mqMsg.Format.CompareTo(MQC.MQFMT_STRING) == 0)
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{
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string msgString = mqMsg.ReadString(mqMsg.MessageLength);
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System.Console.WriteLine(msgString);
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string sql = "CALL " + mq2sqlInsertQuery + "( '" + MySqlHelper.EscapeString(msgString) + "' )"; //opbygger en CALL somestoredprocedure('msgString'); sql streng
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MySqlCommand sqlcmd = new MySqlCommand(sql, sqlConnection);
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int numrows = sqlcmd.ExecuteNonQuery();
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if (numrows == 1)
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{
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translog.WriteLine(getNowString() + " " + msgString);
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mqMgr.Commit();
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statusData.counter++;
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}
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else
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{
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mqMgr.Backout();
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isContinue = false;
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}
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}
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else
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{
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System.Console.WriteLine("Non-text message");
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}
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}
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catch (MQException mqe)
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{
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isContinue = false;
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// report reason, if any
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if (mqe.Reason == MQC.MQRC_NO_MSG_AVAILABLE)
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{
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// special report for normal end
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System.Console.WriteLine("no more messages");
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}
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else
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{
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// general report for other reasons
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System.Console.WriteLine("MQQueue::Get ended with " + mqe.Message); ;
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statusData.lastrunOk = false;
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}
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}
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}
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}
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}
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catch (Exception e)
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{
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//Det vil være mest korrekt at Rollback/backout MQ Transaktionen her - for at være sikker på at Message'n fjernes fra køen
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try
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{
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if (mqMgr != null)
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{
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mqMgr.Backout();
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}
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}
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catch (Exception e2)
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{
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this.addLogEntry("Error backing out from MQ Transaction: " + e2.Message);
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}
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statusData.lastrunOk = false;
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statusData.lastErrorMessage = name + ".transportMq2Sql error: " + e.GetType().FullName + " " + e.Message;
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Console.WriteLine(statusData.lastErrorMessage);
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Console.WriteLine(e.StackTrace);
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EventLog.WriteEntry("DaoMqPump2", statusData.lastErrorMessage, EventLogEntryType.Warning);
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}
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finally
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{
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if (in_queue != null && in_queue.IsOpen)
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{
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try
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{
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in_queue.Close();
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}
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catch (Exception e)
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{
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Console.WriteLine("Error cleaning up qmgr " + e.Message);
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}
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}
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if (mqMgr != null && mqMgr.IsOpen)
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{
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try
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{
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mqMgr.Close();
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} catch (Exception e) {
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Console.WriteLine("Error cleaning up qmgr " + e.Message);
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}
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}
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}
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}
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private string buildMysqlConnString()
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{
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string connectionString = "";
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connectionString += "SERVER=" + controller.mysqlHost + ";";
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//connectionString += "DATABASE=" + controller.mysqlHost + ";";
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connectionString += "UID=" + controller.mysqlUser + ";";
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connectionString += "PASSWORD=" + controller.mysqlPassword + ";";
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connectionString += "Max Pool Size=20;";
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//connectionString += "ConnectionReset=true;";//ConnectionReset kræver muligvis at Default Database er angivet - det virker ihvertfald ikke uden
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return connectionString;
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}
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private Hashtable getConnectionProperties()
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{
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Hashtable connProperties = new Hashtable();
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connProperties.Add(MQC.TRANSPORT_PROPERTY, MQC.TRANSPORT_MQSERIES_CLIENT);
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connProperties.Add(MQC.HOST_NAME_PROPERTY, controller.mqHost);
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connProperties.Add(MQC.CHANNEL_PROPERTY, controller.mqChannel); //WARNING: Hardcoded Channel Value !!!
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return connProperties;
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}
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private string getLogFilename(LogfileType type)
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{
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DateTime now = DateTime.Now;
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string filename = controller.logDirectory + "\\";
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//Find uge nr
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DateTimeFormatInfo dfi = DateTimeFormatInfo.CurrentInfo;
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Calendar myCal = CultureInfo.InvariantCulture.Calendar;//System.Globalization
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int week = myCal.GetWeekOfYear(now, dfi.CalendarWeekRule, dfi.FirstDayOfWeek);
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switch (type)
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{
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case LogfileType.LogEvents:
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filename += "eventlog_";
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break;
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case LogfileType.LogTransactions:
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filename += "transactionlog_";
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break;
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}
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filename += name + "_" + now.Year.ToString("D4") + "_W" + week.ToString("D2") + ".log";
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return filename;
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}
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public string getNowString()
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{
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DateTime now = DateTime.Now;
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return now.ToString("s");
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}
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private void addLogEntry(string msg)
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{
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msg = getNowString() + " " + msg;
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lock (logEntries)
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{
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logEntries.AddFirst(msg);
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if (logEntries.Count > 20)
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{
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logEntries.RemoveLast();
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}
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}
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string filename = getLogFilename(LogfileType.LogEvents);
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using (StreamWriter eventlog = new StreamWriter(filename, true))
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{
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eventlog.WriteLine(msg);
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}
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}
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public string[] getLog()
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{
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lock(logEntries)
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{
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List<string> tmpEntries = new List<string>();
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foreach (string s in logEntries)
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{
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tmpEntries.Add(s);
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}
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return tmpEntries.ToArray();
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}
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}
|
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|
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}
|
474 |
}
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