public static void ReplaceLastLog(IReplayConfiguration config, long logGen, string oldFilePath, string newFilePath)
{
string targetLogFilePath = EseHelper.MakeLogFilePath(config, logGen, config.DestinationLogPath);
string fileName = Path.GetFileName(targetLogFilePath);
string tempNewFilePath = Path.Combine(config.DestinationLogPath, fileName + ".ReplacementNew");
string tempOldFilePath = oldFilePath + ".ReplacementOld";
string e00LogPath = EseHelper.MakeLogFilePath(config, 0L, config.DestinationLogPath);
Exception ex = LastLogReplacer.HandleExceptions(delegate
{
if (!File.Exists(oldFilePath))
{
DiagCore.AssertOrWatson(false, "ReplaceLastLog(): File '{0}' not found!", new object[]
{
oldFilePath
});
throw new LastLogReplacementFailedFileNotFoundException(config.DisplayName, oldFilePath, e00LogPath);
}
if (!File.Exists(newFilePath))
{
DiagCore.AssertOrWatson(false, "ReplaceLastLog(): File '{0}' not found!", new object[]
{
newFilePath
});
throw new LastLogReplacementFailedFileNotFoundException(config.DisplayName, newFilePath, e00LogPath);
}
if (File.Exists(tempNewFilePath))
{
DiagCore.AssertOrWatson(false, "ReplaceLastLog(): File '{0}' was not expected to be found. Was RollbackLastLogIfNecessary() successfully called?", new object[]
{
tempNewFilePath
});
throw new LastLogReplacementFailedUnexpectedFileFoundException(config.DisplayName, tempNewFilePath, e00LogPath);
}
if (File.Exists(tempOldFilePath))
{
DiagCore.AssertOrWatson(false, "ReplaceLastLog(): File '{0}' was not expected to be found. Was RollbackLastLogIfNecessary() successfully called?", new object[]
{
tempOldFilePath
});
throw new LastLogReplacementFailedUnexpectedFileFoundException(config.DisplayName, tempOldFilePath, e00LogPath);
}
File.Move(newFilePath, tempNewFilePath);
File.Move(oldFilePath, tempOldFilePath);
File.Move(tempNewFilePath, targetLogFilePath);
LastLogReplacer.MoveTempOldFileToBackupDir(config, tempOldFilePath);
});
if (ex != null)
{
throw new LastLogReplacementFailedErrorException(config.DisplayName, e00LogPath, ex.Message, ex);
}
}
public static Exception CleanupTemporaryFiles(string logFilePrefix, string destinationLogPath, out Exception exception)
{
exception = LastLogReplacer.HandleExceptions(delegate
{
string filter = LastLogReplacer.BuildLogFileSearchPattern(logFilePrefix, ".ReplacementNew");
string filter2 = LastLogReplacer.BuildLogFileSearchPattern(logFilePrefix, ".ReplacementOld");
using (DirectoryEnumerator directoryEnumerator = new DirectoryEnumerator(new DirectoryInfo(destinationLogPath), false, false))
{
foreach (string path in directoryEnumerator.EnumerateFiles(filter, null))
{
File.Delete(path);
}
foreach (string path2 in directoryEnumerator.EnumerateFiles(filter2, null))
{
File.Delete(path2);
}
}
});
return(exception);
}
public static bool AreTemporaryFilesPresent(string logFilePrefix, string destinationLogPath, out Exception exception)
{
bool fTempFilesPresent = false;
exception = LastLogReplacer.HandleExceptions(delegate
{
string filter = LastLogReplacer.BuildLogFileSearchPattern(logFilePrefix, ".ReplacementNew");
string filter2 = LastLogReplacer.BuildLogFileSearchPattern(logFilePrefix, ".ReplacementOld");
DirectoryInfo directoryInfo = new DirectoryInfo(destinationLogPath);
if (!directoryInfo.Exists)
{
fTempFilesPresent = false;
return;
}
using (DirectoryEnumerator directoryEnumerator = new DirectoryEnumerator(directoryInfo, false, false))
{
fTempFilesPresent = (directoryEnumerator.EnumerateFiles(filter, null).Count <string>() > 0 || directoryEnumerator.EnumerateFiles(filter2, null).Count <string>() > 0);
}
});
return(exception == null && fTempFilesPresent);
}
private static void DeleteTempOldFile(IReplayConfiguration config, string tempOldFile)
{
Exception ex = LastLogReplacer.HandleExceptions(delegate
{
long logfileGeneration = EseHelper.GetLogfileGeneration(tempOldFile);
string text = EseHelper.MakeLogFilePath(config, logfileGeneration, config.DestinationLogPath);
if (!File.Exists(text))
{
string text2 = EseHelper.MakeLogFilePath(config, 0L, config.DestinationLogPath);
if (!File.Exists(text2))
{
DiagCore.AssertOrWatson(false, "DeleteTempOldFile(): tempOldFile '{0}' has generation {1}, but corresponding numbered log '{2}' was not found!", new object[]
{
tempOldFile,
logfileGeneration,
text
});
throw new LastLogReplacementUnexpectedTempFilesException(config.DisplayName, config.DestinationLogPath);
}
text = text2;
}
LastLogReplacer.Tracer.TraceDebug <string, string>(0L, "DeleteTempOldFile(): '{0}': Found previously replaced file to be: {1}", config.DisplayName, text);
bool flag = EseHelper.IsLogfileSubset(text, tempOldFile, config.E00LogBackupPath, null, null);
DiagCore.AssertOrWatson(flag, "LastLogReplacer.RollbackLastLogIfNecessary(): File '{0}' is not a subset of replaced numbered log file '{1}', as expected!", new object[]
{
tempOldFile,
text
});
if (!flag)
{
throw new LastLogReplacementFileNotSubsetException(config.DisplayName, tempOldFile, text);
}
LastLogReplacer.MoveTempOldFileToBackupDir(config, tempOldFile);
});
if (ex != null)
{
throw new LastLogReplacementTempOldFileNotDeletedException(config.DisplayName, tempOldFile, ex.Message, ex);
}
}
private static void DeleteTempNewFile(IReplayConfiguration config, string tempNewFile, string subsetFile)
{
Exception ex = LastLogReplacer.HandleExceptions(delegate
{
bool flag = EseHelper.IsLogfileSubset(tempNewFile, subsetFile, config.E00LogBackupPath, null, null);
DiagCore.AssertOrWatson(flag, "LastLogReplacer.RollbackLastLogIfNecessary(): File '{0}' is not a subset of temporary new file '{1}', as expected!", new object[]
{
subsetFile,
tempNewFile
});
if (!flag)
{
throw new LastLogReplacementFileNotSubsetException(config.DisplayName, subsetFile, tempNewFile);
}
File.Delete(tempNewFile);
ReplayCrimsonEvents.FileDeleted.Log <string, string, string>(config.DatabaseName, config.ServerName, tempNewFile);
});
if (ex != null)
{
throw new LastLogReplacementTempNewFileNotDeletedException(config.DisplayName, tempNewFile, ex.Message, ex);
}
}
public static void RollbackLastLogIfNecessary(IReplayConfiguration config)
{
Exception ex = LastLogReplacer.HandleExceptions(delegate
{
int num = 0;
int num2 = 0;
string text = null;
string text2 = null;
string text3 = EseHelper.MakeLogFilePath(config, 0L, config.DestinationLogPath);
string filter = LastLogReplacer.BuildLogFileSearchPattern(config.LogFilePrefix, ".ReplacementNew");
string filter2 = LastLogReplacer.BuildLogFileSearchPattern(config.LogFilePrefix, ".ReplacementOld");
using (DirectoryEnumerator directoryEnumerator = new DirectoryEnumerator(new DirectoryInfo(config.DestinationLogPath), false, false))
{
foreach (string text4 in directoryEnumerator.EnumerateFiles(filter, null))
{
num++;
text = text4;
}
if (num > 1)
{
throw new LastLogReplacementTooManyTempFilesException(config.DisplayName, filter, num, config.DestinationLogPath);
}
foreach (string text5 in directoryEnumerator.EnumerateFiles(filter2, null))
{
num2++;
text2 = text5;
}
if (num2 > 1)
{
throw new LastLogReplacementTooManyTempFilesException(config.DisplayName, filter2, num2, config.DestinationLogPath);
}
}
if (num == 0 && num2 == 0)
{
LastLogReplacer.Tracer.TraceDebug <string>(0L, "RollbackLastLogIfNecessary(): '{0}': Case 1: Nothing to do.", config.DisplayName);
return;
}
if (num == 1 && num2 == 0)
{
LastLogReplacer.Tracer.TraceDebug <string, string>(0L, "RollbackLastLogIfNecessary(): '{0}': Case 2: Considering to delete temp new file: {1}", config.DisplayName, text);
LastLogReplacer.DeleteTempNewFile(config, text, text3);
return;
}
if (num == 1 && num2 == 1)
{
LastLogReplacer.Tracer.TraceDebug(0L, "RollbackLastLogIfNecessary(): '{0}': Case 3: Rolling back temp file '{1}' to '{2}' and considering to delete temp new file: {3}", new object[]
{
config.DisplayName,
text2,
text3,
text
});
File.Move(text2, text3);
LastLogReplacer.DeleteTempNewFile(config, text, text3);
return;
}
if (num == 0 && num2 == 1)
{
LastLogReplacer.Tracer.TraceDebug <string, string>(0L, "RollbackLastLogIfNecessary(): '{0}': Case 4: Considering moving out temp old file '{1}' to IgnoredLogs directory.", config.DisplayName, text2);
LastLogReplacer.DeleteTempOldFile(config, text2);
return;
}
LastLogReplacer.Tracer.TraceError <string, int, int>(0L, "RollbackLastLogIfNecessary(): '{0}': Unexpected temporary files found. tempOldFileCount={1}, tempNewFileCount={2}, e00Exists=false", config.DisplayName, num2, num);
throw new LastLogReplacementUnexpectedTempFilesException(config.DisplayName, config.DestinationLogPath);
});
if (ex != null)
{
throw new LastLogReplacementRollbackFailedException(config.DisplayName, ex.Message, ex);
}
}
