public static void IsNotNull(string paramName, object paramValue)
{
if (paramValue == null)
{
Log.Error("Argument '{0}' cannot be null", ObjectToStringHelper.ToString(paramName));
throw new ArgumentNullException(paramName);
}
}
public static void IsNotEmpty(string paramName, Guid paramValue)
{
if (paramValue == Guid.Empty)
{
var error = string.Format("Argument '{0}' cannot be Guid.Empty", ObjectToStringHelper.ToString(paramName));
Log.Error(error);
throw new ArgumentException(error, paramName);
}
}
public static void IsNotNullOrEmpty(string paramName, string paramValue)
{
if (string.IsNullOrEmpty(paramValue))
{
var error = string.Format("Argument '{0}' cannot be null or empty", ObjectToStringHelper.ToString(paramName));
Log.Error(error);
throw new ArgumentException(error, paramName);
}
}
public static void IsMaximum <T>(string paramName, T paramValue, T maximumValue, Func <T, T, bool> validation)
{
if (!validation(paramValue, maximumValue))
{
var error = string.Format("Argument '{0}' should be at maximum {1}", ObjectToStringHelper.ToString(paramName), maximumValue);
Log.Error(error);
throw new ArgumentOutOfRangeException(paramName, error);
}
}
public static void IsNotNullOrEmpty(string paramName, Guid?paramValue)
{
if (!paramValue.HasValue || paramValue.Value == Guid.Empty)
{
var error = $"Argument '{ObjectToStringHelper.ToString(paramName)}' cannot be null or Guid.Empty";
Log.Error(error);
throw new ArgumentException(error, paramName);
}
}
public static void IsValid <T>(string paramName, T paramValue, bool validation)
{
if (!validation)
{
var error = $"Argument '{ObjectToStringHelper.ToString(paramName)}' is not valid";
Log.Error(error);
throw new ArgumentException(error, paramName);
}
}
public static void IsNotNull(string paramName, object paramValue)
{
if (paramValue == null)
{
var error = $"Argument '{ObjectToStringHelper.ToString(paramName)}' cannot be null";
Log.Error(error);
throw new ArgumentNullException(paramName, error);
}
}
public static void IsNotNullOrEmptyArray(string paramName, Array paramValue)
{
if ((paramValue == null) || (paramValue.Length == 0))
{
var error = $"Argument '{ObjectToStringHelper.ToString(paramName)}' cannot be null or an empty array";
Log.Error(error);
throw new ArgumentException(error, paramName);
}
}
public static void IsNotNullOrWhitespace(string paramName, string paramValue)
{
if (string.IsNullOrEmpty(paramValue) || (string.CompareOrdinal(paramValue.Trim(), string.Empty) == 0))
{
var error = $"Argument '{ObjectToStringHelper.ToString(paramName)}' cannot be null or whitespace";
Log.Error(error);
throw new ArgumentException(error, paramName);
}
}
public static void IsNotNullOrWhitespace(string paramName, string paramValue)
{
if (string.IsNullOrWhiteSpace(paramValue))
{
var error = $"Argument '{ObjectToStringHelper.ToString(paramName)}' cannot be null or whitespace";
Log.Error(error);
throw new ArgumentException(error, paramName);
}
}
public static void IsValid <T>(string paramName, T paramValue, bool validation)
{
Argument.IsNotNull("paramValue", paramValue);
if (!validation)
{
var error = string.Format("Argument '{0}' is not valid", ObjectToStringHelper.ToString(paramName));
Log.Error(error);
throw new ArgumentException(error, paramName);
}
}
public static void IsMinimal <T>(string paramName, T paramValue, T minimumValue, Func <T, T, bool> validation)
{
IsNotNull("validation", validation);
if (!validation(paramValue, minimumValue))
{
var error = string.Format("Argument '{0}' should be minimal {1}", ObjectToStringHelper.ToString(paramName), minimumValue);
Log.Error(error);
throw new ArgumentOutOfRangeException(paramName, error);
}
}
public static void IsNotOutOfRange <T>(string paramName, T paramValue, T minimumValue, T maximumValue, Func <T, T, T, bool> validation)
{
IsNotNull("validation", validation);
if (!validation(paramValue, minimumValue, maximumValue))
{
var error = $"Argument '{ObjectToStringHelper.ToString(paramName)}' should be between {minimumValue} and {maximumValue}";
Log.Error(error);
throw new ArgumentOutOfRangeException(paramName, error);
}
}
/// <summary>
/// Runs async tasks in parallel in pre-defined batches.
/// </summary>
/// <param name="tasks">The task list.</param>
/// <param name="taskName">The task name.</param>
/// <param name="batchSize">The batch size.</param>
public static async Task ExecuteInParallelAsync(List <Func <Task> > tasks, int batchSize = 1000, string taskName = null)
{
Argument.IsNotNull(nameof(tasks), tasks);
taskName = ObjectToStringHelper.ToString(taskName);
Log.Debug("[{0}] Executing '{1}' async tasks in parallel in batches of size '{2}'", taskName, tasks.Count, batchSize);
for (int i = 0; i < tasks.Count; i = i + batchSize)
{
await TaskHelper.RunAndWaitAsync(tasks.Skip(i).Take(Math.Min(batchSize, tasks.Count - i)).ToArray());
}
}
/// <summary>
/// Executes all the items in the collection in parallel batches.
/// </summary>
/// <typeparam name="T">The item type.</typeparam>
/// <param name="items">The items.</param>
/// <param name="actionToInvoke">The action to invoke per item.</param>
/// <param name="itemsPerBatch">The items per batch.</param>
/// <param name="taskName">Name of the task, can be <c>null</c>.</param>
/// <exception cref="ArgumentNullException">The <paramref name="items" /> is <c>null</c>.</exception>
/// <exception cref="ArgumentNullException">The <paramref name="actionToInvoke" /> is <c>null</c>.</exception>
public static void ExecuteInParallel <T>(List <T> items, Action <T> actionToInvoke, int itemsPerBatch = 1000, string taskName = null)
{
Argument.IsNotNull("items", items);
Argument.IsNotNull("actionToInvoke", actionToInvoke);
taskName = ObjectToStringHelper.ToString(taskName);
Log.Debug("[{0}] Executing '{1}' actions in parallel in batches of '{2}' items per batch", taskName, items.Count, itemsPerBatch);
var batches = new List <List <T> >();
if (itemsPerBatch > 0)
{
var typeCount = items.Count;
for (int i = 0; i < typeCount; i = i + itemsPerBatch)
{
int itemsToSkip = i;
int itemsToTake = itemsPerBatch;
if (itemsToTake >= typeCount)
{
itemsToTake = typeCount - i;
}
batches.Add(items.Skip(itemsToSkip).Take(itemsToTake).ToList());
}
}
else
{
batches.Add(new List <T>(items));
}
if (batches.Count == 1)
{
ExecuteBatch(taskName, "single", batches[0], actionToInvoke);
}
else
{
var actions = new List <Action>();
for (var i = 0; i < batches.Count; i++)
{
var innerI = i;
var batch = batches[i];
actions.Add(() => ExecuteBatch(taskName, innerI.ToString(), batch, actionToInvoke));
}
TaskHelper.RunAndWait(actions.ToArray());
}
Log.Debug("[{0}] Executed '{1}' actions in parallel in '{2}' batches of '{3}' items per batch", taskName, items.Count, batches.Count, itemsPerBatch);
}