/// <summary>
/// reads the EM2 variables file and transfers it to EM3 style
/// creates the config folder, if it does not exist, and overwrites any existing variables file
/// note: the intended usage is "single variables transformation"
/// the EM3All class is responsible for complete EM-content transformation (using the EM3Variables.Write functions)
/// </summary>
/// <param name="emPath"> EuromodFiles folder (containing EM2-files in XMLParam and (will contain) EM3-files in EM3Translation\XMLParam) </param>
/// <param name="errors"> critical and non-critical erros during the transformation-process, empty structure for no errors </param>
public static bool Transform(string emPath, out List <string> errors)
{
errors = new List <string>(); EMPath pathHandler = new EMPath(emPath);
try
{
DirectoryInfo di = Directory.CreateDirectory(pathHandler.GetFolderConfig());
if (TransformerCommon.IsFileUpToDate(pathHandler.GetVarFilePath(em2: true), di.FullName, out string hashCode))
{
return(true);
}
// read EM2-file
EM2Variables.Content content = EM2Variables.Read(pathHandler.GetFolderConfig(em2: true), out List <string> rErrors);
if (content == null)
{
errors = rErrors; return(false);
}
// transfer to EM3-structure
bool success = Write(content, emPath, out List <string> wErrors);
errors.AddRange(wErrors);
if (success && errors.Count == 0)
{
TransformerCommon.WriteUpToDate(pathHandler.GetVarFilePath(em2: true), di.FullName, hashCode);
}
return(success);
}
catch (Exception exception)
{
errors.Add($"Variables: {exception.Message}");
return(false);
}
}
/// <summary> reads all components of an EM2 version </summary>
/// <param name="emPath"> path to EUROMOD version (e.g. C:\euromod\EuromodContent\EuromodFiles_H0.13\) </param>
/// <param name="errors"> list of errors, only critical errors lead to failure-return (null), i.e. there may be errors on "success"</param>
/// <param name="progressAction">
/// optional function for progress reporting, in the form 'void funName(string message)'
/// is called for each item (country, add-on, global file) and sets message to e.g. 'Finished reading ...', 'Failed reading ...'
/// </param>
/// <param name="cancelSrc"> optional cancellation item </param>
/// <returns> Content structure upon success, null upon failure </returns>
public static Content Read(string emPath, out List <string> errors,
Action <string> progressAction = null, CancellationTokenSource cancelSrc = null)
{
Content content = new Content();
List <string> _errors = new List <string>();
object writeLock = new object();
ParallelOptions parallelOptions = new ParallelOptions();
if (cancelSrc != null)
{
parallelOptions.CancellationToken = cancelSrc.Token;
}
try
{
EMPath pathHandler = new EMPath(emPath);
// READ COUNTRIES IN PARALLEL
Parallel.ForEach(new DirectoryInfo(pathHandler.GetFolderCountries(em2: true)).GetDirectories(), parallelOptions, folder =>
{
parallelOptions.CancellationToken.ThrowIfCancellationRequested();
string ctryFileName = pathHandler.GetCountryFilePath(country: folder.Name, em2: true);
string dataFileName = pathHandler.GetEM2DataConfigFilePath(country: folder.Name);
EM2Country.Content c = EM2Country.Read(ctryFileName, out List <string> cErrors);
EM2Data.Content d = EM2Data.Read(dataFileName, out List <string> dErrors);
bool success = c != null && d != null;
lock (writeLock)
{
if (success)
{
content.countries.Add(new CountryContent()
{
country = c, data = d
});
}
_errors.AddRange(cErrors); _errors.AddRange(dErrors);
}
ReportSuccess(folder.Name, success, cErrors.Count + dErrors.Count);
});
// the rest is read sequentially (parallel would be unnecessary overhead)
// READ ADD-ONS
foreach (DirectoryInfo folder in new DirectoryInfo(pathHandler.GetFolderAddOns(em2: true)).GetDirectories())
{
if ((new List <string>()
{
"HypoData", "SumStat", "XYZ"
}).Contains(folder.Name))
{
continue; // that's just old stuff, I think hardcoding isn't a faux pas
}
string aoFileName = pathHandler.GetAddOnFilePath(addOn: folder.Name, em2: true);
EM2Country.Content ao = EM2Country.Read(aoFileName, out List <string> aoErrors);
if (ao != null)
{
content.addOns.Add(ao);
}
_errors.AddRange(aoErrors); ReportSuccess(folder.Name, ao != null, aoErrors.Count);
}
;
// READ GLOBAL FILES
string configPath = pathHandler.GetFolderConfig(em2: true);
content.exRates = EM2Global.ReadExRates(configPath, out List <string> exErrors); _errors.AddRange(exErrors);
ReportSuccess("Exchange rates", exErrors.Count == 0, exErrors.Count);
content.hicp = EM2Global.ReadHICP(configPath, out List <string> hicpErrors); _errors.AddRange(hicpErrors);
ReportSuccess("HICP", hicpErrors.Count == 0, hicpErrors.Count);
content.switchPol = EM2Global.ReadSwitchPol(configPath, out List <string> spErrors); _errors.AddRange(spErrors);
ReportSuccess("Policy switches", spErrors.Count == 0, spErrors.Count);
// READ VARIABLES
content.varConfig = EM2Variables.Read(configPath, out List <string> vErrors); _errors.AddRange(vErrors);
ReportSuccess(EM2Variables.FILE_VARCONFIG, content.varConfig != null, vErrors.Count);
return(content);
}
catch (OperationCanceledException) { progressAction($"Reading {emPath} cancelled!"); return(content); }
catch (Exception exception)
{
lock (writeLock) { _errors.Add(exception.Message); } return(null);
}
finally { errors = _errors; }
void ReportSuccess(string what, bool success, int cntErrors)
{
if (success)
{
progressAction($"Finished reading {what} with " + $"{(cntErrors == 0 ? "success" : $"{cntErrors} errors") }");
}