private static (object value, string error) Evaluator(Expression expression, IMemory state, Options options)
{
var(path, left, error) = FunctionUtils.TryAccumulatePath(expression, state, options);
if (error != null)
{
return(null, error);
}
if (left == null)
{
// fully converted to path, so we just delegate to memory scope
return(FunctionUtils.WrapGetValue(state, path, options));
}
else
{
// stop at somewhere, so we figure out what's left
var(newScope, err) = left.TryEvaluate(state, options);
if (err != null)
{
return(null, err);
}
return(FunctionUtils.WrapGetValue(MemoryFactory.Create(newScope), path, options));
}
}
/// <summary>
/// Check that the dataset built using the DataSetBuilder with default caches
/// contains the same data as that built using the MemoryFactory
/// </summary>
public void DataSetBuilder_Compare()
{
// Arange
string tempFile = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString() + ".tmp");
File.Copy(DataFile, tempFile);
try
{
// Act
using (IndirectDataSet fileDataset =
BuildDataset(
InitBuilder()
.ConfigureDefaultCaches()))
{
using (DataSet memoryDataset = MemoryFactory.Create(tempFile))
{
// Assert
Assert.IsTrue(Utils.CompareDataSets(fileDataset, memoryDataset),
"Data loaded by DataSetBuilder does not match that loaded by MemoryFactory from the same file");
}
}
}
finally
{
// tidy up
if (File.Exists(tempFile))
{
File.Delete(tempFile);
}
}
}
public void CreateDataSet()
{
var start = DateTime.UtcNow;
Utils.CheckFileExists(DataFile);
_dataSet = MemoryFactory.Create(DataFile);
}
/// <summary>
/// Validates the download for success and checks the data set can
/// be loaded. Uses the memory factory as this validates more elements
/// of the data file.
/// </summary>
/// <param name="result">Result of the download process.</param>
private void ValidateDownload(AutoUpdate.AutoUpdateStatus result)
{
if (result != AutoUpdate.AutoUpdateStatus.AUTO_UPDATE_SUCCESS)
{
Assert.Fail(
"Data file update process failed with status '{0}'.",
result.ToString());
}
using (var dataSet = MemoryFactory.Create(TestDataFile.FullName))
{
if (dataSet.Name.Equals("Lite"))
{
Console.WriteLine("Data set name was: " + dataSet.Name);
Assert.Fail("Data set name was 'Lite'.");
}
}
}
private static (object value, string error) Evaluator(Expression expression, IMemory state, Options options)
{
object value = null;
string error;
object firstItem;
object property;
var children = expression.Children;
(firstItem, error) = children[0].TryEvaluate(state, options);
if (error == null)
{
if (children.Length == 1)
{
// get root value from memory
if (!(firstItem is string))
{
error = $"Single parameter {children[0]} is not a string.";
}
else
{
(value, error) = FunctionUtils.WrapGetValue(state, (string)firstItem, options);
}
}
else
{
// get the peoperty value from the instance
(property, error) = children[1].TryEvaluate(state, options);
if (error == null)
{
(value, error) = FunctionUtils.WrapGetValue(MemoryFactory.Create(firstItem), (string)property, options);
}
}
}
return(value, error);
}
public override Task <IReadOnlyList <OnCondition> > SelectAsync(ActionContext context, CancellationToken cancellationToken = default)
{
var candidates = _conditionals;
if (_evaluate)
{
candidates = new List <OnCondition>();
foreach (var conditional in _conditionals)
{
var expression = conditional.GetExpression();
var(value, error) = expression.TryEvaluate(context.State);
var eval = error == null && (bool)value;
if (eval == true)
{
candidates.Add(conditional);
}
}
}
var result = new List <OnCondition>();
if (candidates.Count > 0)
{
var memory = MemoryFactory.Create(context.State);
int?customizedSeed = null;
if (Seed != -1)
{
customizedSeed = Seed;
}
var selection = memory.RandomNext(0, candidates.Count, customizedSeed);
result.Add(candidates[selection]);
}
return(Task.FromResult((IReadOnlyList <OnCondition>)result));
}
public void CreateDataSet()
{
Utils.CheckFileExists(DataFile);
_dataSet = MemoryFactory.Create(DataFile);
}
/// <summary>
/// Initializes a new instance of the <see cref="CustomizedMemory"/> class.
/// </summary>
/// <param name="scope">scope.</param>
public CustomizedMemory(object scope)
{
this.GlobalMemory = scope == null ? null : MemoryFactory.Create(scope);
this.LocalMemory = null;
}
public void CreateDataSet()
{
_memory = new Utils.MemoryMonitor();
Utils.CheckFileExists(DataFile);
_dataSet = MemoryFactory.Create(DataFile, true);
}