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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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namespace DaoMqPump2
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{
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public class Transport
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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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public bool enabled { get; set; }
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TransportController controller;
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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 int counter { get; private set; }
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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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this.enabled = enabled;
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lastrunOk = true;
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counter = 0;
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lastErrorMessage = lastOkTime = lastErrorTime = "";
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addLogEntry( "Starting ... " );
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}
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public void transportMessages()
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{
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if (enabled == false)
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return;
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Console.WriteLine(name + " -> transportMessages() ");
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lastrunOk = true;
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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 (lastrunOk == true)
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{
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lastOkTime = getNowString();
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}
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else
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{
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addLogEntry(lastErrorMessage);
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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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string filename = getTransactionlogFilename();
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using (StreamWriter translog = new StreamWriter(filename, true) )
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try
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{
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//stage 1 connect to mq
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Hashtable connProps = getConnectionProperties();
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MQQueueManager mqMgr = new MQQueueManager(controller.mqQueueManager, connProps);
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int openOptions = MQC.MQOO_OUTPUT + MQC.MQOO_FAIL_IF_QUIESCING;
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MQQueue out_queue = mqMgr.AccessQueue(queueName, openOptions);
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//stage 2 connect to mysql
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string mysqlString = buildMysqlConnString();
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MySqlConnection sqlConnection = new MySqlConnection(mysqlString);
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sqlConnection.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, sqlConnection);
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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, sqlConnection);
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int numrows = updateCmd.ExecuteNonQuery();
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translog.WriteLine(getNowString() + " " + msgString + "\n");
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if (numrows != 1)
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{
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break;
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}
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counter++;
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}
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//stage 4: everything went smooth so clean up afterwards
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dataReader.Close();
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out_queue.Close();
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mqMgr.Close();
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sqlConnection.Close();
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}
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catch (Exception e)
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{
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lastrunOk = false;
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lastErrorMessage = name + ".transportSql2Mq error: " + e.Message;
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Console.WriteLine(lastErrorMessage);
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EventLog.WriteEntry("DaoMqPump2", lastErrorMessage, EventLogEntryType.Warning);
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}
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}
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private void transportMq2Sql()
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{
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string filename = getTransactionlogFilename();
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using (StreamWriter translog = new StreamWriter(filename, true))
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try
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{
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//stage 1 connect to mq
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Hashtable connProps = getConnectionProperties();
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MQQueueManager mqMgr = new MQQueueManager(controller.mqQueueManager, connProps);
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int openOptions = MQC.MQOO_INPUT_AS_Q_DEF + MQC.MQOO_FAIL_IF_QUIESCING;
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MQQueue in_queue = mqMgr.AccessQueue(queueName, openOptions);
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//stage 2 connect to mysql
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string mysqlString = buildMysqlConnString();
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MySqlConnection sqlConnection = new MySqlConnection(mysqlString);
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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 + "\n");
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mqMgr.Commit();
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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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lastrunOk = false;
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}
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}
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}
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//stage 4: everything went smooth so clean up afterwards
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in_queue.Close();
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mqMgr.Close();
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sqlConnection.Close();
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}
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catch (Exception e)
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{
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lastrunOk = false;
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lastErrorMessage = name + ".transportMq2Sql error: " + e.Message;
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Console.WriteLine(lastErrorMessage);
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EventLog.WriteEntry("DaoMqPump2", lastErrorMessage, EventLogEntryType.Warning);
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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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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 getTransactionlogFilename()
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{
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DateTime now = DateTime.Now;
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string filename = controller.logDirectory + "\\";
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filename += "transactionlog_" + name + "_" + now.Year.ToString("D4") + now.Month.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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}
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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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}
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