protected override StageResult Read()
{
if (ClassifierResultsFile.Extension == ".gz")
{
using (GZipStream gzs = new GZipStream(ClassifierResultsFile.OpenRead(), CompressionMode.Decompress))
using (StreamReader r = new StreamReader(gzs))
using (JsonTextReader reader = new JsonTextReader(r))
{
JsonSerializer serializer = new JsonSerializer();
ClassifierResults = serializer.Deserialize <List <ClassifierResult> >(reader);
}
}
else
{
using (StreamReader r = new StreamReader(ClassifierResultsFile.OpenRead()))
using (JsonTextReader reader = new JsonTextReader(r))
{
JsonSerializer serializer = new JsonSerializer();
ClassifierResults = serializer.Deserialize <List <ClassifierResult> >(reader);
}
}
if (ClassifierResults == null || ClassifierResults.Count == 0)
{
Error("Did not read any records from {0}.", ClassifierResultsFile.FullName);
return(StageResult.INPUT_ERROR);
}
else
{
Info("Read {0} records from {1}.", ClassifierResults.Count, ClassifierResultsFile.FullName);
return(StageResult.SUCCESS);
}
}
protected override StageResult Init()
{
Contract.Requires(ClassStatisticsFile != null && ClassStatisticsFile == null);
Contract.Requires(ClassifierResultsFile != null && ClassifierResultsFile == null);
if (!ClassStatisticsFile.CheckExistsAndReportError(L))
{
return(StageResult.INPUT_ERROR);
}
if (!ClassifierResultsFile.CheckExistsAndReportError(L))
{
return(StageResult.INPUT_ERROR);
}
if (OutputFile.Exists && !OverwriteOutputFile)
{
Error("The output file {0} exists but the overwrite option was not specified.", OutputFile.FullName);
return(StageResult.OUTPUT_ERROR);
}
else if (OutputFile.Exists)
{
Warn("Output file {0} exists and will be overwritten.", OutputFile.FullName);
}
return(StageResult.SUCCESS);
}
