public void LoadConfigFile(string configFile)
{
Log.Trace(@"Loading config file {0}", configFile);
ConfigErrors.Clear();
ConfigWarnings.Clear();
ConfigPath = configFile;
if (Read())
{
DoValidation();
}
else
{
ConfigErrors.Add($"Failed to read the configuration file {configFile}");
}
}
private void DoValidation()
{
if (string.IsNullOrEmpty(ConfigPath))
{
ConfigErrors.Add(@"Config validation failed. There is no config file set.");
Log.Error(@"Config validation failed. There is no config file set.");
return;
}
Log.Debug("validating config file {0}", ConfigPath);
// RULE: at least one data source must be specified
if (!SnapShotSources.Any())
{
ConfigErrors.Add("At least one data source must be specified. Check the value for \"d1\" \r\n");
}
// RULE: the first parity location must not be empty
if (string.IsNullOrEmpty(ParityFile1))
{
ConfigErrors.Add("The first parity location must not be empty. Check the value for \"parity\"");
}
// RULE: number of content files must be at least the (number of parity files + 1)
if (ContentFiles.Count < ParityPaths.Count + 1)
{
ConfigErrors.Add($"The number of content files must be at least one greater than the number of parity files. There should be at least {ParityPaths.Count + 1} content files.");
}
// RULE: check that devices are not repeated
if (!IsRulePassDevicesMustNotRepeat(DataSourcePaths))
{
ConfigErrors.Add("Devices for Source and Parity must be unique. Check the values for data and parity");
}
// RULE: data paths must be accessible
foreach (SnapShotSource source in DataSourcePaths)
{
// test if path exists
if (!Directory.Exists(source.DirSource))
{
ConfigErrors.Add($"Source is inaccessible or does not exist: {source.DirSource}");
}
}
// RULE: parity devices should be greater or equal to data devices
ByteSize largestSourceDevice = new ByteSize(StorageUtil.GetDriveSizes(DataSourcePaths).Max());
ByteSize smallestParityDevice = new ByteSize(StorageUtil.GetDriveSizes(ParityPaths).Min());
if (largestSourceDevice > smallestParityDevice)
{
ConfigWarnings.Add($@"One or more data devices [{largestSourceDevice}] are larger than the smallest parity device [{smallestParityDevice}]. All parity devices should be equal or greater in size than all data devices.");
}
// RULE: blockSize valid value
if (BlockSizeKB < 1 || BlockSizeKB > 16384)
{
ConfigErrors.Add(@"The blockSize value is invalid and must be between 1 and 16384");
}
// RULE: autoSave valid value
if (AutoSaveGB > Constants.MaxAutoSave)
{
ConfigErrors.Add($"The autoSave value is invalid and must be between {Constants.MinAutoSave} and {Constants.MaxAutoSave}");
}
if (!IsValid)
{
Log.Error(@"The configuration file is not valid. See errors below:");
foreach (string error in ConfigErrors)
{
Log.Error(@" - {0}", error);
}
}
}