/// <summary>
/// Determine whether a new task needs to be executed
/// </summary>
/// <param name="type">Type</param>
/// <returns>True if need to execute, false if not</returns>
public virtual async Task <bool> Check(Type type)
{
if (null == type)
{
throw new ArgumentNullException("type");
}
var entry = new ScheduledTaskEntry()
{
PartitionKey = ScheduledTaskEntry.GenerateLogsPartitionKey(type.GetType().ToString()),
ServiceName = type.GetType().ToString(),
};
var performTask = true;
var records = await this.storage.QueryByPartition <ScheduledTaskEntry>(entry.PartitionKey);
if (records != null && records.Any())
{
var latest = records.OrderByDescending(x => x.StartTime).First();
performTask = (latest.CompletionTime.HasValue) ?
DateTime.UtcNow.Subtract(latest.CompletionTime.Value) >= period || !latest.Successful :
DateTime.UtcNow.Subtract(latest.StartTime) >= retryInterval;
}
return(performTask);
}
public void ServiceName()
{
var expected = ScheduledTaskEntry.GenerateLogsPartitionKey(this.GetType().ToString());
var entity = new ScheduledTaskEntry
{
ServiceName = expected,
};
Assert.AreEqual(expected, entity.ServiceName);
}
public void Identifier()
{
var entity = new ScheduledTaskEntry
{
PartitionKey = ScheduledTaskEntry.GenerateLogsPartitionKey(this.GetType().ToString()),
ServiceName = this.GetType().ToString(),
};
Assert.IsNull(entity.Identifier);
var data = Guid.NewGuid();
entity.Identifier = data;
Assert.AreEqual(data, entity.Identifier);
entity.Identifier = null;
Assert.IsNull(entity.Identifier);
}
/// <summary>
/// Complete
/// </summary>
/// <param name="type">Task Type</param>
/// <param name="identifier">Identifier</param>
/// <param name="start">Start</param>
/// <param name="end">End</param>
/// <param name="success">Success</param>
/// <returns>Task</returns>
public virtual async Task Complete(Type type, Guid identifier, DateTime start, DateTime end, bool success)
{
if (null == type)
{
throw new ArgumentNullException("type");
}
await this.storage.InsertOrReplace(new ScheduledTaskEntry
{
PartitionKey = ScheduledTaskEntry.GenerateLogsPartitionKey(type.GetType().ToString()),
ServiceName = type.GetType().ToString(),
Identifier = Guid.Empty == identifier ? Guid.NewGuid() : identifier,
StartTime = start,
CompletionTime = end,
Successful = success,
});
}
/// <summary>
/// Start
/// </summary>
/// <param name="type">Task Type</param>
/// <param name="identifier">Identifier</param>
/// <param name="start">Start</param>
/// <returns>Task</returns>
public virtual async Task Start(Type type, Guid identifier, DateTime start)
{
if (null == type)
{
throw new ArgumentNullException("type");
}
if (Guid.Empty == identifier)
{
throw new ArgumentException("identifier");
}
await this.storage.InsertOrReplace(new ScheduledTaskEntry
{
PartitionKey = ScheduledTaskEntry.GenerateLogsPartitionKey(type.GetType().ToString()),
ServiceName = type.GetType().ToString(),
Identifier = identifier,
StartTime = start,
});
}
public void GenerateLogsPartitionKey()
{
var serviceName = Guid.NewGuid().ToString();
Assert.AreEqual(string.Format("{0}-{1:yyyy}-{1:MM}", serviceName, DateTime.UtcNow), ScheduledTaskEntry.GenerateLogsPartitionKey(serviceName));
}
