public async Task <JArray> Get(string deviceGuid, DateTime?timestamp = null, string names = null, int?waitTimeout = null)
{
var device = GetDeviceEnsureAccess(deviceGuid);
var start = timestamp ?? _timestampRepository.GetCurrentTimestamp();
var notificationNames = names != null?names.Split(',') : null;
if (waitTimeout <= 0)
{
var filter = new DeviceNotificationFilter {
Start = start, IsDateInclusive = false, Notifications = notificationNames
};
var notifications = DataContext.DeviceNotification.GetByDevice(device.ID, filter);
return(new JArray(notifications.Select(n => MapDeviceNotification(n, device))));
}
var config = DeviceHiveConfiguration.RestEndpoint;
var delayTask = Task.Delay(1000 * Math.Min(config.NotificationPollMaxInterval, waitTimeout ?? config.NotificationPollDefaultInterval));
using (var waiterHandle = _notificationByDeviceIdWaiter.BeginWait(new object[] { device.ID },
notificationNames == null ? null : notificationNames.Cast <object>().ToArray()))
{
do
{
var filter = new DeviceNotificationFilter {
Start = start, IsDateInclusive = false, Notifications = notificationNames
};
var notifications = DataContext.DeviceNotification.GetByDevice(device.ID, filter);
if (notifications != null && notifications.Any())
{
return(new JArray(notifications.Select(n => MapDeviceNotification(n, device))));
}
}while (await Task.WhenAny(waiterHandle.Wait(), delayTask) != delayTask);
}
return(new JArray());
}
public JArray Get(Guid deviceGuid, DateTime?timestamp = null, int?waitTimeout = null)
{
var device = DataContext.Device.Get(deviceGuid);
if (device == null || !IsNetworkAccessible(device.NetworkID))
{
ThrowHttpResponse(HttpStatusCode.NotFound, "Device not found!");
}
var start = timestamp != null?timestamp.Value.AddTicks(10) : _timestampRepository.GetCurrentTimestamp();
if (waitTimeout <= 0)
{
var notifications = DataContext.DeviceNotification.GetByDevice(device.ID, start, null);
return(new JArray(notifications.Select(n => Mapper.Map(n))));
}
var waitUntil = DateTime.UtcNow.AddSeconds(Math.Min(_maxWaitTimeout, waitTimeout ?? _defaultWaitTimeout));
while (true)
{
using (var waiterHandle = _notificationByDeviceIdWaiter.BeginWait(device.ID))
{
var notifications = DataContext.DeviceNotification.GetByDevice(device.ID, start, null);
if (notifications != null && notifications.Any())
{
return(new JArray(notifications.Select(n => Mapper.Map(n))));
}
var now = DateTime.UtcNow;
if (now >= waitUntil || !waiterHandle.Handle.WaitOne(waitUntil - now))
{
return(new JArray());
}
}
}
}
public JObject Get(Guid deviceGuid, int id, int?waitTimeout = null)
{
var device = DataContext.Device.Get(deviceGuid);
if (device == null || !IsNetworkAccessible(device.NetworkID))
{
ThrowHttpResponse(HttpStatusCode.NotFound, "Device not found!");
}
var command = DataContext.DeviceCommand.Get(id);
if (command == null || command.DeviceID != device.ID)
{
ThrowHttpResponse(HttpStatusCode.NotFound, "Device command not found!");
}
if (command.Status != null)
{
return(Mapper.Map(command));
}
if (waitTimeout <= 0)
{
return(null);
}
var waitUntil = DateTime.UtcNow.AddSeconds(Math.Min(_maxWaitTimeout, waitTimeout ?? _defaultWaitTimeout));
while (true)
{
using (var waiterHandle = _commandByCommandIdWaiter.BeginWait(id))
{
command = DataContext.DeviceCommand.Get(id);
if (command != null && command.Status != null)
{
return(Mapper.Map(command));
}
var now = DateTime.UtcNow;
if (now >= waitUntil || !waiterHandle.Handle.WaitOne(waitUntil - now))
{
return(null);
}
}
}
}
public async Task <JObject> Get(string deviceGuid, int id, int?waitTimeout = null)
{
var device = GetDeviceEnsureAccess(deviceGuid);
var command = DataContext.DeviceCommand.Get(id);
if (command == null || command.DeviceID != device.ID)
{
ThrowHttpResponse(HttpStatusCode.NotFound, "Device command not found!");
}
if (command.Status != null)
{
return(Mapper.Map(command));
}
if (waitTimeout <= 0)
{
return(null);
}
var config = DeviceHiveConfiguration.RestEndpoint;
var delayTask = Task.Delay(1000 * Math.Min(config.CommandPollMaxInterval, waitTimeout ?? config.CommandPollDefaultInterval));
using (var waiterHandle = _commandByCommandIdWaiter.BeginWait(new object[] { id }, null))
{
do
{
command = DataContext.DeviceCommand.Get(id);
if (command != null && command.Status != null)
{
return(Mapper.Map(command));
}
}while (await Task.WhenAny(waiterHandle.Wait(), delayTask) != delayTask);
}
return(null);
}
