string GenerateMtFileWatchConfig(FileWatchElement inputFile, int i)
{
var inputFileEscaped = PrepareFilePaths(inputFile.Files);
var mainModulePath = new Uri(Process.GetCurrentProcess().MainModule.FileName).LocalPath;
var exePath = Path.Combine(Path.GetDirectoryName(mainModulePath), "MtLogTailer.exe");
var exePathEscaped = exePath.Replace(@"\", @"\\");
var res = string.Format(@"
<Input in_file{0}>
Module im_exec
Command ""{1}""
Arg ""{2}""
Arg -readFromLast:{5}
Restart True
Exec $Message = string($raw_event);
Exec $path = ""{3}""; $type = ""{4}"";
Exec if $Message =~ /^(([^\t]+)\t)/ {{ $fullPath = $2; $Message = substr($Message, size($1)); }}
Exec if $Message $Message = substr($Message, 0, 1040000);
", i, exePathEscaped, inputFileEscaped, inputFile.Files, inputFile.Type, inputFile.ReadFromLast.ToString().ToLower());
res += AppendCustomFields(inputFile);
res += GetSessionId();
res += @"</Input>" + Environment.NewLine;
return res;
}
string GenerateNormalFileWatchConfig(FileWatchElement inputFile, int i)
{
var res = "";
var inputFileEscaped = PrepareFilePaths(inputFile.Files);
_log.InfoFormat("Receiving data from file: {0}", inputFile.Files);
res += string.Format(@"
<Input in_file{0}>
Module im_file
InputType {8}
File ""{1}""
ReadFromLast {2}
SavePos TRUE
CloseWhenIdle {7}
PollInterval {5}
DirCheckInterval {6}
Exec $path = ""{3}""; $type = ""{4}"";
",
i,
inputFileEscaped,
inputFile.ReadFromLast.ToString().ToUpper(),
inputFile.Files,
inputFile.Type,
FilePollIntervalSeconds,
FilePollIntervalSeconds * 2,
inputFile.CloseWhenIdle.ToString().ToUpper(),
inputFile.MultilineRule);
res += AppendCustomFields(inputFile);
// Limit maximum message size to just less than 1MB; or NXLog dies with: ERROR string limit (1048576 bytes) reached
res += @" Exec if $Message $Message = substr($raw_event, 0, 1040000);" + Environment.NewLine;
if (inputFile.CustomNxlogConfig != null)
{
var customNxlog = inputFile.CustomNxlogConfig.Value;
if (!string.IsNullOrWhiteSpace(customNxlog))
res += "\t" + customNxlog + Environment.NewLine;
}
res += GetSessionId();
res += @"</Input>" + Environment.NewLine;
return res;
}
private static string AppendCustomFields(FileWatchElement inputFile)
{
if (inputFile.Fields.Count == 0)
return "";
var buf = new StringBuilder();
foreach (FieldElement field in inputFile.Fields)
{
if (!field.Key.All(ch => Char.IsLetterOrDigit(ch) || ch == '/' || ch == '_'))
{
var message = string.Format("fileWatch: '{0}' contains invalid field name '{1}' (must contain letters, digits, slashes and underscores only)",
inputFile.Files, field.Key);
throw new ApplicationException(message);
}
buf.AppendFormat(@"${0} = ""{1}""; ", field.Key, field.Value);
}
return " Exec " + buf + Environment.NewLine;
}