public FileDataSource(IDataSourceUpdates dataSourceUpdates, FileDataTypes.IFileReader fileReader,
List <string> paths, bool autoUpdate, Func <string, object> alternateParser, bool skipMissingPaths,
FileDataTypes.DuplicateKeysHandling duplicateKeysHandling,
Logger logger)
{
_logger = logger;
_dataSourceUpdates = dataSourceUpdates;
_paths = new List <string>(paths);
_parser = new FlagFileParser(alternateParser);
_dataMerger = new FlagFileDataMerger(duplicateKeysHandling);
_fileReader = fileReader;
_skipMissingPaths = skipMissingPaths;
if (autoUpdate)
{
try
{
_reloader = new FileWatchingReloader(_paths, TriggerReload);
}
catch (Exception e)
{
LogHelpers.LogException(_logger, "Unable to watch files for auto-updating", e);
_reloader = null;
}
}
else
{
_reloader = null;
}
}
public void AddToData_DuplicateKeysHandling_Ignore()
{
const string key = "flag1";
FeatureFlag initialFeatureFlag = new FeatureFlagBuilder(key).Version(0).Build();
var flagData = new Dictionary <string, ItemDescriptor>
{
{ key, new ItemDescriptor(1, initialFeatureFlag) }
};
var segmentData = new Dictionary <string, ItemDescriptor>();
FlagFileData fileData = new FlagFileData
{
Flags = new Dictionary <string, FeatureFlag>
{
{
key,
new FeatureFlagBuilder(key).Version(1).Build()
}
}
};
FlagFileDataMerger merger = new FlagFileDataMerger(FileDataTypes.DuplicateKeysHandling.Ignore);
merger.AddToData(fileData, flagData, segmentData);
ItemDescriptor postFeatureFlag = flagData[key];
Assert.Same(initialFeatureFlag, postFeatureFlag.Item);
Assert.Equal(1, postFeatureFlag.Version);
}
public void AddToData_DuplicateKeysHandling_Throw()
{
const string key = "flag1";
FeatureFlag initialFeatureFlag = new FeatureFlagBuilder(key).Version(0).Build();
var flagData = new Dictionary <string, ItemDescriptor>
{
{ key, new ItemDescriptor(1, initialFeatureFlag) }
};
var segmentData = new Dictionary <string, ItemDescriptor>();
var fileData = new DataSetBuilder()
.Flags(new FeatureFlagBuilder(key).Version(1).Build()).Build();
FlagFileDataMerger merger = new FlagFileDataMerger(FileDataTypes.DuplicateKeysHandling.Throw);
Exception err = Assert.Throws <Exception>(() =>
{
merger.AddToData(fileData, flagData, segmentData);
});
Assert.Equal("in \"features\", key \"flag1\" was already defined", err.Message);
ItemDescriptor postFeatureFlag = flagData[key];
Assert.Same(initialFeatureFlag, postFeatureFlag.Item);
Assert.Equal(1, postFeatureFlag.Version);
}
