/v3.0/Router/Persister.cs

using System;

using System.Collections;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.IO;

using System.Net;

using System.Net.Sockets;

using System.Diagnostics;

using System.ServiceProcess;

using System.Threading;

using System.Text;

using System.Reflection;

using System.Reflection.Emit;

using System.Xml.XPath;

using Microsoft.WebSolutionsPlatform.Event;

using Microsoft.WebSolutionsPlatform.PubSubManager;

using Microsoft.WebSolutionsPlatform.Common;



namespace Microsoft.WebSolutionsPlatform.Router

{

    public partial class Router : ServiceBase

    {

        internal class PersistEventInfo

        {

            internal bool InUse;

            internal bool Loaded;

            internal string CopyToFileDirectory;

            internal string TempFileDirectory;

            internal long MaxFileSize;

            internal long CopyIntervalTicks;

            internal long NextCopyTick;

            internal bool CreateEmptyFiles;

            internal string OutFileName;

            internal StreamWriter OutStream;

            internal char FieldTerminator;

            internal char RowTerminator;

            internal char KeyValueSeparator;

            internal char BeginObjectSeparator;

            internal char EndObjectSeparator;

            internal char BeginArraySeparator;

            internal char EndArraySeparator;

            internal char StringDelimiter;

            internal char EscapeCharacter;

            internal Subscription subscription;

            

            internal Guid persistEventType;

            internal Guid PersistEventType

            {

                get

                {

                    return persistEventType;

                }

                set

                {

                    persistEventType = value;

                    subscription.SubscriptionEventType = value;

                }

            }



            internal bool localOnly;

            internal bool LocalOnly

            {

                get

                {

                    return localOnly;

                }

                set

                {

                    localOnly = value;

                    subscription.LocalOnly = value;

                }

            }



            internal PersistEventInfo()

            {

                InUse = false;

                Loaded = false;

                CopyIntervalTicks = 600000000;

                MaxFileSize = long.MaxValue - 1;

                CreateEmptyFiles = false;



                subscription = new Subscription();

                subscription.Subscribe = true;

            }

        }



        internal class Persister : ServiceThread

        {

            internal static bool copyInProcess = false;

            internal static bool localOnly = true;



            internal static long lastConfigFileTick;

            internal static long nextConfigFileCheckTick = 0;



            internal static long lastLocalConfigFileTick;



            internal static WspEventPublish eventPush = null;



            internal static Dictionary<Guid, PersistEventInfo> persistEvents = new Dictionary<Guid, PersistEventInfo>();



            private Stack<PersistFileEvent> persistFileEvents;



            private long nextCopyTick = 0;



            private string fileNameBase = string.Empty;

            private string fileNameSuffix = string.Empty;



            private QueueElement element;



            public Persister()

            {

                string hostName = Dns.GetHostName().ToLower();



                try

                {

                    char[] splitChar = { '.' };



                    IPHostEntry hostEntry = Dns.GetHostEntry(hostName);



                    string[] temp = hostEntry.HostName.ToLower().Split(splitChar, 2);



                    hostName = temp[0];

                }

                catch

                {

                }



                fileNameBase = hostName + @".Events.";

                fileNameSuffix = @".txt";



                persistFileEvents = new Stack<PersistFileEvent>();

            }



            public override void Start()

            {

                bool elementRetrieved;

                WspBuffer serializedEvent;

                long currentTick;

                long configFileTick;

                long localConfigFileTick;

                PersistEventInfo eventInfo;

                string eventFieldTerminator = @",";

                StreamWriter eventStream;

                PubSubManager.ReturnCode rc;



                string propName;

                byte propType;

                object propValue;



                try

                {

                    Manager.ThreadInitialize.Release();

                }

                catch

                {

                    // If the thread is restarted, this could throw an exception but just ignore

                }



                try

                {

                    eventPush = new WspEventPublish();



                    while (true)

                    {

                        currentTick = DateTime.UtcNow.Ticks;



                        if (currentTick > nextConfigFileCheckTick)

                        {

                            nextConfigFileCheckTick = currentTick + 300000000;



                            configFileTick = Configurator.GetConfigFileTick();

                            localConfigFileTick = Configurator.GetLocalConfigFileTick();



                            if (configFileTick != lastConfigFileTick || localConfigFileTick != lastLocalConfigFileTick)

                            {

                                nextCopyTick = 0;



                                foreach (PersistEventInfo eInfo in persistEvents.Values)

                                {

                                    eInfo.Loaded = false;

                                }



                                lock (configFileLock)

                                {

                                    Configurator.LoadLogSettings();

                                    Configurator.LoadLocalLogSettings();

                                }



                                foreach (PersistEventInfo eInfo in persistEvents.Values)

                                {

                                    if (eInfo.Loaded == false)

                                    {

                                        eInfo.InUse = false;

                                        eInfo.NextCopyTick = currentTick - 1;



                                        eInfo.subscription.Subscribe = false;



                                        WspEvent wspEvent = new WspEvent(Subscription.SubscriptionEvent, null, eInfo.subscription.Serialize());

                                        eventPush.OnNext(wspEvent, out rc);

                                    }

                                }



                                lastConfigFileTick = configFileTick;

                                lastLocalConfigFileTick = localConfigFileTick;

                            }



                            foreach (PersistEventInfo eInfo in persistEvents.Values)

                            {

                                if (eInfo.InUse == true)

                                {

                                    eInfo.subscription.Subscribe = true;



                                    WspEvent wspEvent = new WspEvent(Subscription.SubscriptionEvent, null, eInfo.subscription.Serialize());

                                    eventPush.OnNext(wspEvent, out rc);

                                }

                            }

                        }



                        try

                        {

                            element = persisterQueue.Dequeue();



                            if (element == default(QueueElement))

                            {

                                elementRetrieved = false;

                            }

                            else

                            {

                                elementRetrieved = true;

                            }

                        }

                        catch (InvalidOperationException)

                        {

                            elementRetrieved = false;

                        }



                        currentTick = DateTime.UtcNow.Ticks;



                        if (currentTick > nextCopyTick)

                        {

                            nextCopyTick = long.MaxValue;



                            foreach (PersistEventInfo persistEventInfo in persistEvents.Values)

                            {

                                if (currentTick > persistEventInfo.NextCopyTick)

                                {

                                    persistEventInfo.NextCopyTick = currentTick + persistEventInfo.CopyIntervalTicks;



                                    if (persistEventInfo.OutStream != null)

                                    {

                                        persistEventInfo.OutStream.Close();



                                        SendPersistEvent(PersistFileState.Close, persistEventInfo, persistEventInfo.OutFileName);



                                        persistEventInfo.OutStream = null;

                                    }



                                    if (persistEventInfo.InUse == true)

                                    {

                                        persistEventInfo.OutFileName = persistEventInfo.TempFileDirectory + fileNameBase + DateTime.UtcNow.ToString("u").Replace(":", "-") + fileNameSuffix;



                                        if (File.Exists(persistEventInfo.OutFileName) == true)

                                            persistEventInfo.OutStream = new StreamWriter(File.Open(persistEventInfo.OutFileName, FileMode.Append, FileAccess.Write, FileShare.None), Encoding.Unicode);

                                        else

                                            persistEventInfo.OutStream = new StreamWriter(File.Open(persistEventInfo.OutFileName, FileMode.Create, FileAccess.Write, FileShare.None), Encoding.Unicode);



                                        SendPersistEvent(PersistFileState.Open, persistEventInfo, persistEventInfo.OutFileName);

                                    }

                                }



                                if (persistEventInfo.NextCopyTick < nextCopyTick)

                                {

                                    nextCopyTick = persistEventInfo.NextCopyTick;

                                }

                            }



                            if (copyInProcess == false)

                            {

                                Thread copyThread = new Thread(new ThreadStart(CopyFile));



                                copyInProcess = true;



                                copyThread.Start();

                            }

                        }



                        if (elementRetrieved == true)

                        {

                            eventInfo = persistEvents[element.WspEvent.EventType];



                            if (eventInfo.InUse == true)

                            {

                                eventFieldTerminator = eventInfo.FieldTerminator.ToString();



                                eventStream = eventInfo.OutStream;



                                if (eventStream == null)

                                {

                                    eventInfo.NextCopyTick = DateTime.UtcNow.Ticks + eventInfo.CopyIntervalTicks;



                                    eventInfo.OutFileName = eventInfo.TempFileDirectory + fileNameBase + DateTime.UtcNow.ToString("u").Replace(":", "-") + fileNameSuffix;



                                    if (File.Exists(eventInfo.OutFileName) == true)

                                        eventInfo.OutStream = new StreamWriter(File.Open(eventInfo.OutFileName, FileMode.Append, FileAccess.Write, FileShare.None), Encoding.Unicode);

                                    else

                                        eventInfo.OutStream = new StreamWriter(File.Open(eventInfo.OutFileName, FileMode.Create, FileAccess.Write, FileShare.None), Encoding.Unicode);



                                    eventStream = eventInfo.OutStream;



                                    if (eventInfo.NextCopyTick < nextCopyTick)

                                    {

                                        nextCopyTick = eventInfo.NextCopyTick;

                                    }



                                    SendPersistEvent(PersistFileState.Open, eventInfo, eventInfo.OutFileName);

                                }



                                eventStream.Write(eventInfo.BeginObjectSeparator);



                                eventStream.Write(eventInfo.StringDelimiter.ToString());

                                eventStream.Write("OriginatingRouterName");

                                eventStream.Write(eventInfo.StringDelimiter.ToString());

                                eventStream.Write(eventInfo.KeyValueSeparator.ToString());

                                eventStream.Write(eventInfo.StringDelimiter.ToString());

                                eventStream.Write(CleanseString(element.WspEvent.OriginatingRouterName, eventInfo));

                                eventStream.Write(eventInfo.StringDelimiter.ToString());

                                eventStream.Write(eventInfo.FieldTerminator.ToString());



                                eventStream.Write(eventInfo.StringDelimiter.ToString());

                                eventStream.Write("InRouterName");

                                eventStream.Write(eventInfo.StringDelimiter.ToString());

                                eventStream.Write(eventInfo.KeyValueSeparator.ToString());

                                eventStream.Write(eventInfo.StringDelimiter.ToString());

                                eventStream.Write(CleanseString(element.WspEvent.InRouterName, eventInfo));

                                eventStream.Write(eventInfo.StringDelimiter.ToString());



                                serializedEvent = new WspBuffer(element.WspEvent.Body);



                                while (serializedEvent.Position < serializedEvent.Size)

                                {

                                    if (serializedEvent.Read(out propName) == false)

                                    {

                                        throw new EventDeserializationException("Error reading PropertyName from buffer");

                                    }



                                    eventStream.Write(eventInfo.FieldTerminator.ToString());

                                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                                    eventStream.Write(CleanseString(propName, eventInfo));

                                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                                    eventStream.Write(eventInfo.KeyValueSeparator.ToString());



                                    if (serializedEvent.Read(out propType) == false)

                                    {

                                        throw new EventDeserializationException("Error reading PropertyType from buffer");

                                    }



                                    switch (propType)

                                    {

                                        case (byte)PropertyType.StringDictionary:



                                            WriteStringDictionary(eventStream, serializedEvent, eventInfo);

                                            break;



                                        case (byte)PropertyType.ObjectDictionary:



                                            WriteObjectDictionary(eventStream, serializedEvent, eventInfo);

                                            break;



                                        case (byte)PropertyType.StringList:

                                            WriteStringList(eventStream, serializedEvent, eventInfo);

                                            break;



                                        case (byte)PropertyType.ObjectList:

                                            WriteObjectList(eventStream, serializedEvent, eventInfo);

                                            break;



                                        case (byte)PropertyType.ByteArray:

                                            WriteByteArray(eventStream, serializedEvent, eventInfo);

                                            break;



                                        case (byte)PropertyType.CharArray:

                                            WriteCharArray(eventStream, serializedEvent, eventInfo);

                                            break;



                                        case (byte)PropertyType.DateTime:

                                            WriteDateTime(eventStream, serializedEvent, eventInfo);

                                            break;



                                        case (byte)PropertyType.Int64:

                                            if (string.Compare(propName, "EventTime", true) == 0)

                                            {

                                                WriteDateTime(eventStream, serializedEvent, eventInfo);

                                            }

                                            else

                                            {

                                                if (serializedEvent.Read((PropertyType)propType, out propValue) == false)

                                                {

                                                    throw new EventDeserializationException("Error reading PropertyValue from buffer");

                                                }



                                                eventStream.Write(eventInfo.StringDelimiter.ToString());

                                                eventStream.Write(CleanseString(propValue.ToString(), eventInfo));

                                                eventStream.Write(eventInfo.StringDelimiter.ToString());

                                            }

                                            break;



                                        default:

                                            if (serializedEvent.Read((PropertyType)propType, out propValue) == false)

                                            {

                                                throw new EventDeserializationException("Error reading PropertyValue from buffer");

                                            }



                                            eventStream.Write(eventInfo.StringDelimiter.ToString());

                                            eventStream.Write(CleanseString(propValue.ToString(), eventInfo));

                                            eventStream.Write(eventInfo.StringDelimiter.ToString());

                                            break;

                                    }

                                }



                                eventStream.Write(eventInfo.EndObjectSeparator);



                                eventStream.Write(eventInfo.RowTerminator);



                                if (eventStream.BaseStream.Length >= eventInfo.MaxFileSize)

                                {

                                    eventInfo.NextCopyTick = currentTick - 1;

                                    nextCopyTick = eventInfo.NextCopyTick;

                                }

                            }

                        }

                    }

                }



                catch (IOException e)

                {

                    EventLog.WriteEntry("WspEventRouter", e.ToString(), EventLogEntryType.Error);

                    Thread.Sleep(60000);

                }



                catch (ThreadAbortException)

                {

                    // Another thread has signalled that this worker

                    // thread must terminate.  Typically, this occurs when

                    // the main service thread receives a service stop 

                    // command.

                }



                catch (Exception e)

                {

                    EventLog.WriteEntry("WspEventRouter", e.ToString(), EventLogEntryType.Error);

                    throw e;

                }

            }



            private void WriteStringDictionary(StreamWriter eventStream, WspBuffer serializedEvent, PersistEventInfo eventInfo)

            {

                int dictCount;

                string stringKey;

                string stringValue;

                bool first = true;



                if (serializedEvent.Read(out dictCount) == false)

                {

                    throw new EventDeserializationException("Error reading StringDictionary length from buffer");

                }



                eventStream.Write(eventInfo.BeginObjectSeparator);



                for (int i = 0; i < dictCount; i++)

                {

                    if (first == true)

                    {

                        first = false;

                    }

                    else

                    {

                        eventStream.Write(eventInfo.FieldTerminator);

                    }



                    if (serializedEvent.Read(out stringKey) == false)

                    {

                        throw new EventDeserializationException("Error reading StringDictionary key from buffer");

                    }



                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                    eventStream.Write(CleanseString(stringKey, eventInfo));

                    eventStream.Write(eventInfo.StringDelimiter.ToString());



                    eventStream.Write(eventInfo.KeyValueSeparator);



                    if (serializedEvent.Read(out stringValue) == false)

                    {

                        throw new EventDeserializationException("Error reading StringDictionary value from buffer");

                    }



                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                    eventStream.Write(CleanseString(stringValue, eventInfo));

                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                }



                eventStream.Write(eventInfo.EndObjectSeparator);

            }



            private void WriteObjectDictionary(StreamWriter eventStream, WspBuffer serializedEvent, PersistEventInfo eventInfo)

            {

                int dictCount;

                string stringKey;

                byte propType;

                object propValue;

                bool first = true;



                if (serializedEvent.Read(out dictCount) == false)

                {

                    throw new EventDeserializationException("Error reading StringDictionary length from buffer");

                }



                eventStream.Write(eventInfo.BeginObjectSeparator);



                for (int i = 0; i < dictCount; i++)

                {

                    if (first == true)

                    {

                        first = false;

                    }

                    else

                    {

                        eventStream.Write(eventInfo.FieldTerminator);

                    }



                    if (serializedEvent.Read(out stringKey) == false)

                    {

                        throw new EventDeserializationException("Error reading StringDictionary key from buffer");

                    }



                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                    eventStream.Write(CleanseString(stringKey, eventInfo));

                    eventStream.Write(eventInfo.StringDelimiter.ToString());



                    eventStream.Write(eventInfo.KeyValueSeparator);



                    if (serializedEvent.Read(out propType) == false)

                    {

                        throw new EventDeserializationException("Error reading PropertyType from buffer");

                    }



                    if ((PropertyType)propType == PropertyType.StringDictionary)

                    {

                        WriteStringDictionary(eventStream, serializedEvent, eventInfo);

                    }

                    else

                    {

                        if ((PropertyType)propType == PropertyType.ObjectDictionary)

                        {

                            WriteObjectDictionary(eventStream, serializedEvent, eventInfo);

                        }

                        else

                        {

                            if ((PropertyType)propType == PropertyType.StringList)

                            {

                                WriteStringList(eventStream, serializedEvent, eventInfo);

                            }

                            else

                            {

                                if ((PropertyType)propType == PropertyType.ObjectList)

                                {

                                    WriteObjectList(eventStream, serializedEvent, eventInfo);

                                }

                                else

                                {

                                    if (serializedEvent.Read((PropertyType)propType, out propValue) == false)

                                    {

                                        throw new EventDeserializationException("Error reading PropertyValue from buffer");

                                    }



                                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                                    eventStream.Write(CleanseString(propValue.ToString(), eventInfo));

                                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                                }

                            }

                        }

                    }

                }



                eventStream.Write(eventInfo.EndObjectSeparator);

            }



            private void WriteStringList(StreamWriter eventStream, WspBuffer serializedEvent, PersistEventInfo eventInfo)

            {

                int listCount;

                string stringValue;

                bool first = true;



                if (serializedEvent.Read(out listCount) == false)

                {

                    throw new EventDeserializationException("Error reading List length from buffer");

                }



                eventStream.Write(eventInfo.BeginArraySeparator);



                for (int i = 0; i < listCount; i++)

                {

                    if (first == true)

                    {

                        first = false;

                    }

                    else

                    {

                        eventStream.Write(eventInfo.FieldTerminator);

                    }



                    if (serializedEvent.Read(out stringValue) == false)

                    {

                        throw new EventDeserializationException("Error reading List value from buffer");

                    }



                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                    eventStream.Write(CleanseString(stringValue, eventInfo));

                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                }



                eventStream.Write(eventInfo.EndArraySeparator);

            }



            private void WriteObjectList(StreamWriter eventStream, WspBuffer serializedEvent, PersistEventInfo eventInfo)

            {

                int listCount;

                byte propType;

                object propValue;

                bool first = true;



                if (serializedEvent.Read(out listCount) == false)

                {

                    throw new EventDeserializationException("Error reading List length from buffer");

                }



                eventStream.Write(eventInfo.BeginArraySeparator);



                for (int i = 0; i < listCount; i++)

                {

                    if (first == true)

                    {

                        first = false;

                    }

                    else

                    {

                        eventStream.Write(eventInfo.FieldTerminator);

                    }



                    if (serializedEvent.Read(out propType) == false)

                    {

                        throw new EventDeserializationException("Error reading PropertyType from buffer");

                    }



                    if ((PropertyType)propType == PropertyType.StringDictionary)

                    {

                        WriteStringDictionary(eventStream, serializedEvent, eventInfo);

                    }

                    else

                    {

                        if ((PropertyType)propType == PropertyType.ObjectDictionary)

                        {

                            WriteObjectDictionary(eventStream, serializedEvent, eventInfo);

                        }

                        else

                        {

                            if ((PropertyType)propType == PropertyType.StringList)

                            {

                                WriteStringList(eventStream, serializedEvent, eventInfo);

                            }

                            else

                            {

                                if ((PropertyType)propType == PropertyType.ObjectList)

                                {

                                    WriteObjectList(eventStream, serializedEvent, eventInfo);

                                }

                                else

                                {

                                    if (serializedEvent.Read((PropertyType)propType, out propValue) == false)

                                    {

                                        throw new EventDeserializationException("Error reading PropertyValue from buffer");

                                    }



                                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                                    eventStream.Write(CleanseString(propValue.ToString(), eventInfo));

                                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                                }

                            }

                        }

                    }

                }



                eventStream.Write(eventInfo.EndArraySeparator);

            }



            private void WriteByteArray(StreamWriter eventStream, WspBuffer serializedEvent, PersistEventInfo eventInfo)

            {

                byte[] byteArray;

                bool first = true;



                if (serializedEvent.Read(out byteArray) == false)

                {

                    throw new EventDeserializationException("Error reading List length from buffer");

                }



                eventStream.Write(eventInfo.BeginArraySeparator);



                for (int i = 0; i < byteArray.Length; i++)

                {

                    if (first == true)

                    {

                        first = false;

                    }

                    else

                    {

                        eventStream.Write(eventInfo.FieldTerminator);

                    }



                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                    eventStream.Write(CleanseString(byteArray[i].ToString(), eventInfo));

                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                }



                eventStream.Write(eventInfo.EndArraySeparator);

            }



            private void WriteCharArray(StreamWriter eventStream, WspBuffer serializedEvent, PersistEventInfo eventInfo)

            {

                char[] charArray;

                bool first = true;



                if (serializedEvent.Read(out charArray) == false)

                {

                    throw new EventDeserializationException("Error reading List length from buffer");

                }



                eventStream.Write(eventInfo.BeginArraySeparator);



                for (int i = 0; i < charArray.Length; i++)

                {

                    if (first == true)

                    {

                        first = false;

                    }

                    else

                    {

                        eventStream.Write(eventInfo.FieldTerminator);

                    }



                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                    eventStream.Write(CleanseString(charArray[i].ToString(), eventInfo));

                    eventStream.Write(eventInfo.StringDelimiter.ToString());

                }



                eventStream.Write(eventInfo.EndArraySeparator);

            }



            private void WriteDateTime(StreamWriter eventStream, WspBuffer serializedEvent, PersistEventInfo eventInfo)

            {

                DateTime dateTime;



                if (serializedEvent.Read(out dateTime) == false)

                {

                    throw new EventDeserializationException("Error reading List length from buffer");

                }



                eventStream.Write(eventInfo.StringDelimiter.ToString());

                eventStream.Write(CleanseString(dateTime.ToString("o"), eventInfo));

                eventStream.Write(eventInfo.StringDelimiter.ToString());

            }



            private string CleanseString(string stringIn, PersistEventInfo eventInfo)

            {

                StringBuilder sb = new StringBuilder();



                if (string.IsNullOrEmpty(stringIn) == false)

                {

                    for (int i = 0; i < stringIn.Length; i++)

                    {

                        if (stringIn[i] == eventInfo.StringDelimiter)

                        {

                            sb.Append(eventInfo.EscapeCharacter);

                            sb.Append(eventInfo.StringDelimiter);

                            continue;

                        }

                        else if (stringIn[i] == eventInfo.EscapeCharacter)

                        {

                            if (eventInfo.EscapeCharacter == '\\' && (i + 1) < stringIn.Length)

                            {

                                switch (stringIn.Substring(i, 2))

                                {

                                    case @"\b":

                                        sb.Append(@"\b");

                                        i++;

                                        continue;



                                    case @"\f":

                                        sb.Append(@"\f");

                                        i++;

                                        continue;



                                    case @"\n":

                                        sb.Append(@"\n");

                                        i++;

                                        continue;



                                    case @"\r":

                                        sb.Append(@"\r");

                                        i++;

                                        continue;



                                    case @"\t":

                                        sb.Append(@"\t");

                                        i++;

                                        continue;



                                    case @"\u":

                                        sb.Append(@"\u");

                                        i++;

                                        continue;



                                    case @"\/":

                                        sb.Append(@"\/");

                                        i++;

                                        continue;



                                    case "\\\"":

                                        sb.Append("\\\"");

                                        i++;

                                        continue;



                                    case @"\\":

                                        sb.Append(@"\\");

                                        i++;

                                        continue;



                                    default:

                                        sb.Append(eventInfo.EscapeCharacter);

                                        sb.Append(eventInfo.EscapeCharacter);

                                        continue;

                                }

                            }

                            else

                            {

                                sb.Append(eventInfo.EscapeCharacter);

                                sb.Append(eventInfo.EscapeCharacter);

                                continue;

                            }

                        }

                        else

                        {

                            switch (stringIn[i])

                            {

                                case '\b':

                                    sb.Append(eventInfo.EscapeCharacter);

                                    sb.Append('b');

                                    continue;



                                case '\f':

                                    sb.Append(eventInfo.EscapeCharacter);

                                    sb.Append('f');

                                    continue;



                                case '\n':

                                    sb.Append(eventInfo.EscapeCharacter);

                                    sb.Append('n');

                                    continue;



                                case '\r':

                                    sb.Append(eventInfo.EscapeCharacter);

                                    sb.Append('r');

                                    continue;



                                case '\t':

                                    sb.Append(eventInfo.EscapeCharacter);

                                    sb.Append('t');

                                    continue;



                                case '/':

                                    sb.Append(eventInfo.EscapeCharacter);

                                    sb.Append('/');

                                    continue;



                                case '\"':

                                    sb.Append(eventInfo.EscapeCharacter);

                                    sb.Append('\"');

                                    continue;



                                case '\\':

                                    sb.Append(eventInfo.EscapeCharacter);

                                    sb.Append('\\');

                                    continue;



                                default:

                                    sb.Append(stringIn[i]);

                                    continue;

                            }

                        }

                    }

                }



                return sb.ToString();

            }



            private void CopyFile()

            {

                PersistEventInfo eventInfo;

                bool inCopy = true;



                string[] files;



                FileInfo currentFileInfo;

                FileInfo listFileInfo = null;



                try

                {

                    copyInProcess = true;



                    foreach (Guid eventType in persistEvents.Keys)

                    {

                        eventInfo = persistEvents[eventType];



                        files = Directory.GetFiles(eventInfo.TempFileDirectory);

                        currentFileInfo = new FileInfo(eventInfo.OutFileName);



                        for (int i = 0; i < files.Length; i++)

                        {

                            try

                            {

                                listFileInfo = new FileInfo(files[i]);



                                if (eventInfo.InUse == false || string.Compare(currentFileInfo.Name, listFileInfo.Name, true) != 0)

                                {

                                    try

                                    {

                                        inCopy = true;



                                        File.Copy(files[i], eventInfo.CopyToFileDirectory + @"temp\" + listFileInfo.Name, true);



                                        inCopy = false;



                                        SendPersistEvent(PersistFileState.Copy, eventInfo, files[i]);



                                        try

                                        {

                                            File.Move(eventInfo.CopyToFileDirectory + @"temp\" + listFileInfo.Name, eventInfo.CopyToFileDirectory + listFileInfo.Name);



                                            SendPersistEvent(PersistFileState.Move, eventInfo, eventInfo.CopyToFileDirectory + listFileInfo.Name);

                                        }

                                        catch (IOException)

                                        {

                                            SendPersistEvent(PersistFileState.MoveFailed, eventInfo, eventInfo.CopyToFileDirectory + @"temp\" + listFileInfo.Name);



                                            if (File.Exists(eventInfo.CopyToFileDirectory + listFileInfo.Name) == true &&

                                                new FileInfo(eventInfo.CopyToFileDirectory + listFileInfo.Name).Length ==

                                                new FileInfo(eventInfo.CopyToFileDirectory + @"temp\" + listFileInfo.Name).Length)

                                            {

                                                File.Delete(eventInfo.CopyToFileDirectory + @"temp\" + listFileInfo.Name);

                                            }

                                            else

                                            {

                                                File.Delete(eventInfo.CopyToFileDirectory + listFileInfo.Name);

                                                File.Move(eventInfo.CopyToFileDirectory + @"temp\" + listFileInfo.Name, eventInfo.CopyToFileDirectory + listFileInfo.Name);



                                                SendPersistEvent(PersistFileState.Move, eventInfo, eventInfo.CopyToFileDirectory + listFileInfo.Name);

                                            }

                                        }



                                        File.Delete(files[i]);

                                    }

                                    catch

                                    {

                                        if (inCopy == true)

                                        {

                                            SendPersistEvent(PersistFileState.CopyFailed, eventInfo, files[i]);

                                        }

                                        else

                                        {

                                            SendPersistEvent(PersistFileState.MoveFailed, eventInfo, eventInfo.CopyToFileDirectory + @"temp\" + listFileInfo.Name);

                                        }



                                        Directory.CreateDirectory(eventInfo.CopyToFileDirectory);

                                        Directory.CreateDirectory(eventInfo.CopyToFileDirectory + @"temp\");



                                        inCopy = true;



                                        File.Copy(files[i], eventInfo.CopyToFileDirectory + @"temp\" + listFileInfo.Name, true);



                                        inCopy = false;



                                        SendPersistEvent(PersistFileState.Copy, eventInfo, files[i]);



                                        File.Move(eventInfo.CopyToFileDirectory + @"temp\" + listFileInfo.Name, eventInfo.CopyToFileDirectory + listFileInfo.Name);



                                        SendPersistEvent(PersistFileState.Move, eventInfo, eventInfo.CopyToFileDirectory + listFileInfo.Name);



                                        File.Delete(files[i]);

                                    }

                                }

                            }

                            catch

                            {

                                if (inCopy == true)

                                {

                                    SendPersistEvent(PersistFileState.CopyFailed, eventInfo, files[i]);

                                }

                                else

                                {

                                    if (listFileInfo == null)

                                    {

                                        SendPersistEvent(PersistFileState.MoveFailed, eventInfo, null);

                                    }

                                    else

                                    {

                                        SendPersistEvent(PersistFileState.MoveFailed, eventInfo, eventInfo.CopyToFileDirectory + @"temp\" + listFileInfo.Name);

                                    }

                                }

                            }

                        }

                    }

                }



                catch (ThreadAbortException e)

                {

                    throw e;

                }



                catch (Exception e)

                {

                    EventLog.WriteEntry("WspEventRouter", e.ToString(), EventLogEntryType.Warning);

                }



                finally

                {

                    copyInProcess = false;

                }

            }



            private void SendPersistEvent(PersistFileState fileState, PersistEventInfo eventInfo, string outFileName)

            {

                PersistFileEvent persistFileEvent;

                PubSubManager.ReturnCode rc;



                try

                {

                    persistFileEvent = persistFileEvents.Pop();

                }

                catch

                {

                    persistFileEvent = new PersistFileEvent();

                }



                persistFileEvent.PersistEventType = eventInfo.PersistEventType;

                persistFileEvent.FileState = fileState;

                persistFileEvent.FileName = outFileName;

                persistFileEvent.SettingLocalOnly = eventInfo.LocalOnly;

                persistFileEvent.SettingMaxCopyInterval = (int)(eventInfo.CopyIntervalTicks / 10000000);

                persistFileEvent.SettingMaxFileSize = eventInfo.MaxFileSize;

                persistFileEvent.SettingFieldTerminator = eventInfo.FieldTerminator;

                persistFileEvent.SettingRowTerminator = eventInfo.RowTerminator;

                persistFileEvent.SettingBeginObjectSeparator = eventInfo.BeginObjectSeparator;

                persistFileEvent.SettingEndObjectSeparator = eventInfo.EndObjectSeparator;

                persistFileEvent.SettingBeginArraySeparator = eventInfo.BeginArraySeparator;

                persistFileEvent.SettingEndArraySeparator = eventInfo.EndArraySeparator;

                persistFileEvent.SettingKeyValueSeparator = eventInfo.KeyValueSeparator;

                persistFileEvent.SettingStringDelimiter = eventInfo.StringDelimiter;

                persistFileEvent.SettingEscapeCharacter = eventInfo.EscapeCharacter;

                persistFileEvent.FileNameBase = fileNameBase;



                if (fileState == PersistFileState.Open || outFileName == null)

                {

                    persistFileEvent.FileSize = 0;

                }

                else

                {

                    try

                    {

                        persistFileEvent.FileSize = (new FileInfo(outFileName)).Length;

                    }

                    catch

                    {

                        persistFileEvent.FileSize = 0;

                    }

                }



                for (int i = 0; i < 20; i++)

                {

                    try

                    {

                        WspEvent wspEvent = new WspEvent(PersistFileEvent.EventType, null, persistFileEvent.Serialize());

                        eventPush.OnNext(wspEvent, out rc);



                        if (rc == PubSubManager.ReturnCode.Success)

                        {

                            break;

                        }

                    }

                    catch

                    {

                    }

                }



                persistFileEvents.Push(persistFileEvent);

            }

        }

    }

}