private string LoadSystemSettings()
{
using (SystemInfoDataContext systemInfo = new SystemInfoDataContext(m_dbConnectionString))
{
return LoadSystemSettings(systemInfo);
}
}
private string LoadSystemSettings(SystemInfoDataContext systemInfo)
{
// Convert the Setting table to a dictionary
Dictionary<string, string> settings = systemInfo.Settings
.ToDictionary(setting => setting.Name, setting => setting.Value, StringComparer.OrdinalIgnoreCase);
// Add the database connection string if there is not
// already one explicitly specified in the Setting table
if (!settings.ContainsKey("dbConnectionString"))
settings.Add("dbConnectionString", m_dbConnectionString);
// Convert dictionary to a connection string and return it
return SystemSettings.ToConnectionString(settings);
}
/// <summary>
/// Starts the fault location engine.
/// </summary>
public void Start()
{
IEnumerable<string> filterPatterns;
// Get system settings from the database
ReloadSystemSettings();
// Get the list of file extensions to be processed by openXDA
using (SystemInfoDataContext systemInfo = new SystemInfoDataContext(m_dbConnectionString))
{
filterPatterns = systemInfo.DataReaders
.Select(reader => reader.FilePattern)
.Select(extension => string.Format("*.{0}", extension))
.ToList();
}
// Reload configuration at startup
ReloadConfiguration();
// Make sure watch directories exist
foreach (string path in m_systemSettings.WatchDirectoryList)
TryCreateDirectory(path);
// Make sure results directory exists
TryCreateDirectory(m_systemSettings.ResultsPath);
if ((object)m_fileWrapperLookup == null)
m_fileWrapperLookup = new Dictionary<string, FileWrapper>();
// Create the lookup table used to track which files are being processed
if ((object)m_activeFiles == null)
m_activeFiles = new ConcurrentDictionary<string, string>();
// Create the scheduler used to schedule when to process meter data
if ((object)m_meterDataScheduler == null)
{
m_meterDataScheduler = new LogicalThreadScheduler();
m_meterDataThreadLookup = new Dictionary<string, LogicalThread>();
m_meterDataScheduler.UnhandledException += (sender, args) =>
{
string message = $"Unhandled exception occurred while processing meter data: {args.Argument.Message}";
Exception ex = new Exception(message, args.Argument);
OnProcessException(ex);
};
}
m_meterDataScheduler.MaxThreadCount = m_systemSettings.ProcessingThreadCount;
// Setup new file processor to monitor the watch directories
if ((object)m_fileProcessor == null)
{
m_fileProcessor = new FileProcessor(FileProcessorID);
m_fileProcessor.InternalBufferSize = m_systemSettings.FileWatcherBufferSize;
m_fileProcessor.EnumerationStrategy = m_systemSettings.FileWatcherEnumerationStrategy;
m_fileProcessor.MaxThreadCount = m_systemSettings.FileWatcherInternalThreadCount;
m_fileProcessor.MaxFragmentation = m_systemSettings.FileWatcherMaxFragmentation;
m_fileProcessor.FilterMethod = PrevalidateFile;
m_fileProcessor.Processing += FileProcessor_Processing;
m_fileProcessor.Error += FileProcessor_Error;
UpdateFileProcessorFilter(m_systemSettings);
}
foreach (string path in m_systemSettings.WatchDirectoryList)
m_fileProcessor.AddTrackedDirectory(path);
}