/// <summary>
/// Loads the saved file.
/// </summary>
/// <param name="options">The options.</param>
/// <returns>List{`0}.</returns>
public List <T> LoadSavedFile(SamplerOptions options = null)
{
var fileName = $"{Activator.CreateInstance<T>().GetType()}.json";
var location = new StringBuilder();
if (string.IsNullOrEmpty(_saveLocation))
{
location.Append(
$"{Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase)}\\{fileName}");
location.Replace(@"file:\", "");
}
else
{
location.Append($"{_saveLocation}\\{fileName}");
}
if (!File.Exists(location.ToString()))
{
return(null);
}
var list = JsonConvert.DeserializeObject <List <T> >(File.ReadAllText(location.ToString()));
return(list);
}
public Func <object> SetFunc(SamplerOptions samplerOptions, PropertyInfo propertyInfo)
{
Func <object> method;
if (samplerOptions != null)
{
KeyValuePair <string, SamplerOptions.Options> value =
samplerOptions.PropertyOptions.FirstOrDefault(c => c.Key == propertyInfo.Name);
if (value.Key != null)
{
method = DecideTheAction(propertyInfo.PropertyType, value.Value);
}
else
{
method = DecideTheAction(propertyInfo.PropertyType, SamplerOptions.Options.NoOptions);
}
}
else
{
method = DecideTheAction(propertyInfo.PropertyType, SamplerOptions.Options.NoOptions);
}
return(method);
}
/// <summary>
/// Creates the sample data.
/// </summary>
/// <param name="size">The size exists.</param>
/// <param name="samplerOptions">The options.</param>
/// <returns>Sample List.</returns>
public static List <T> CreateSampleData(int size, SamplerOptions samplerOptions = null)
{
var objectList = Activator.CreateInstance <List <T> >();
var helper = new RandomHelper();
for (var i = 0; i < size; i++)
{
var instance = CreateInstance();
IEnumerable <PropertyInfo> properties = typeof(T).GetProperties();
foreach (var propertyInfo in properties)
{
var method = helper.SetFunc(samplerOptions, propertyInfo);
var isUnique = false;
var isSequential = false;
var isNull = false;;
if (samplerOptions != null)
{
var value = samplerOptions.PropertyOptions.FirstOrDefault(c => c.Key == propertyInfo.Name);
if (value.Key != null)
{
method = helper.DecideTheAction(propertyInfo.PropertyType, value.Value);
if (value.Value == SamplerOptions.Options.IsUnique)
{
isUnique = true;
}
else if (value.Value == SamplerOptions.Options.Sequential)
{
isSequential = true;
}
else if (value.Value == SamplerOptions.Options.NullValue)
{
isNull = true;
}
}
if (samplerOptions.PropertyDefaults.Any())
{
var defaultValue = samplerOptions.PropertyDefaults.FirstOrDefault(c => c.Key.PropertyName == propertyInfo.Name);
if (defaultValue.Key != null)
{
var @default = defaultValue.Key;
method = helper.DecideTheAction(propertyInfo.PropertyType, defaultValue.Value, @default);
}
}
}
if (propertyInfo.CanWrite)
{
if (method != null)
{
var value = method.Invoke();
var queryable = objectList.AsQueryable();
if (isSequential)
{
var lastItem = queryable.OrderBy(propertyInfo.Name + " descending").FirstOrDefault();
if (propertyInfo.PropertyType == typeof(int))
{
if (lastItem != null)
{
var props =
lastItem.GetType().GetProperty(propertyInfo.Name)
?.GetValue(lastItem,
null);
if (props != null)
{
var currentCount = int.Parse(props.ToString());
value = currentCount + 1;
}
}
}
else if (propertyInfo.PropertyType == typeof(DateTime))
{
if (lastItem != null)
{
var props = lastItem.GetType().GetProperty(propertyInfo.Name)
?.GetValue(lastItem, null);
if (props != null)
{
var currentDt = DateTime.Parse(props.ToString());
value = currentDt.AddDays(1);
}
}
}
}
else if (isUnique)
{
object[] array = { value };
bool alreadyExists;
alreadyExists = propertyInfo.PropertyType == typeof(Guid) ? CheckForUniqueGuid(objectList, propertyInfo, value) : queryable.Where($"{propertyInfo.Name} = @0", array).Any();
while (alreadyExists)
{
value = method.Invoke();
array = new[] { value };
alreadyExists = propertyInfo.PropertyType == typeof(Guid) ? CheckForUniqueGuid(objectList, propertyInfo, value) : queryable.Where($"{propertyInfo.Name} = @0", array).Any();
}
}
else if (isNull)
{
value = null;
}
propertyInfo.SetValue(instance, value, null);
}
else
{
if (propertyInfo.PropertyType.BaseType == typeof(object))
{
if (propertyInfo.PropertyType.IsClass) // Not really sure if the IsClass is necessary
{
propertyInfo.SetValue(instance, CreateSingleItem(propertyInfo.PropertyType, helper),
null);
}
}
}
}
}
objectList.Add((T)instance);
}
return(objectList);
}
