public bool AuthenticateAnonymousDevice(string device_id, string device_token)
{
TableOperation retrieveOperation = TableOperation.Retrieve <DynamicTableEntity>(device_id,
device_token);
try
{
DynamicTableEntity device_entity = (DynamicTableEntity)this.DevicesTable.Execute
(retrieveOperation).Result;
if (device_entity == null)
{
return(false);
}
else
{
IStorageDevice device = this.DeviceEntityResolver(device_entity.PartitionKey,
device_entity.RowKey, device_entity.Timestamp, device_entity.Properties,
device_entity.ETag);
OverlordIdentity.InitializeDeviceIdentity(device_id, device_token,
device.Sensors.Select(s => s.Key).ToArray <string>());
return(true);
}
}
catch (Exception e)
{
Log.ReadTableFailure(string.Format
("Failed to retrieve device entity: Id: {0}, Token: {1}.", device_id, device_token), e);
throw;
}
}
public IStorageDeviceReading AddDeviceReading(DateTime time, IDictionary <string, object> values)
{
OverlordIdentity.AddClaim(Resource.Storage, StorageAction.FindDevice);
IStorageDevice device = this.GetCurrentDevice();
return(this.AddDeviceReading(device, time, values));
}
public IStorageDevice GetCurrentDevice()
{
IStorageDevice device = this.FindDevice(OverlordIdentity.CurrentDeviceId.ToGuid(),
OverlordIdentity.CurrentDeviceToken);
if (device == null)
{
throw new NullReferenceException("Could not find current device id.");
}
return(device);
}
internal static DynamicTableEntity CreateDeviceTableEntity(IStorageDevice device)
{
Dictionary <string, EntityProperty> dictionary = new Dictionary <string, EntityProperty>();
dictionary.Add("UserId", new EntityProperty(device.UserId));
dictionary.Add("Name", new EntityProperty(device.Name));
dictionary.Add("Description", new EntityProperty(device.Description));
dictionary.Add("Location", new EntityProperty(JsonConvert.SerializeObject(device.Location)));
string sensors_json = JsonConvert.SerializeObject(device.Sensors);
dictionary.Add("Sensors", new EntityProperty(sensors_json));
return(new DynamicTableEntity(device.Id.ToUrn(), device.Token, device.ETag, dictionary));
}
internal IStorageDevice DeviceEntityResolver(string partitionKey, string rowKey,
DateTimeOffset timestamp, IDictionary <string, EntityProperty> properties, string etag)
{
IStorageDevice device = new IStorageDevice();
device.Id = Guid.ParseExact(partitionKey, "D");
device.Token = rowKey;
device.ETag = etag;
device.UserId = properties["UserId"].GuidValue.Value;
device.Name = properties["Name"].StringValue;
device.Description = properties.Keys.Contains("Description") ?
properties["Description"].StringValue : null;
device.Sensors = JsonConvert.DeserializeObject <IDictionary <string, IStorageSensor> >
(properties["Sensors"].StringValue);
device.Location = properties.Keys.Contains("Location") ?
JsonConvert.DeserializeObject <Common.GeoIp>(properties["Location"].StringValue) : null;
return(device);
}
public IStorageSensor AddSensor(string sensor_name, string sensor_units,
IList <Guid> sensor_channels, IList <IStorageAlert> sensor_alerts)
{
if (!sensor_name.IsVaildSensorName())
{
throw new ArgumentException(
string.Format("Invalid sensor name: {0}", sensor_name));
}
OverlordIdentity.AddClaim(Resource.Storage, StorageAction.FindDevice);
IStorageDevice device = this.GetCurrentDevice();
IStorageSensor sensor = new IStorageSensor()
{
DeviceId = device.Id,
Name = sensor_name,
Unit = sensor_units,
Channels = sensor_channels,
Alerts = sensor_alerts
};
if (device.Sensors.Keys.Contains(sensor_name))
{
device.Sensors.Remove(sensor_name);
}
device.Sensors.Add(sensor_name, sensor);
try
{
OverlordIdentity.AddClaim(Resource.Storage, StorageAction.UpdateDevice);
this.UpdateDevice(device);
Log.WriteTableSuccess(string.Format("Added sensor {0} to device entity: Id: {1}, Token: {2}",
sensor.Name, device.Id.ToUrn(), device.Token));
return(sensor);
}
catch (Exception e)
{
Log.ReadTableFailure(string.Format("Failed to read table for device: Id: {0}, Token: {1}.",
device.Id.ToUrn(), device.Token), e);
throw;
}
finally
{
OverlordIdentity.DeleteClaim(Resource.Storage, StorageAction.AddSensor);
}
}
public IStorageDevice AddDevice(IStorageUser user, string name, string token, GeoIp location,
string id = null)
{
IStorageDevice device = new IStorageDevice()
{
Id = string.IsNullOrEmpty(id) ? Guid.NewGuid() : id.UrnToGuid(),
UserId = user.Id,
Token = token,
Name = name,
Sensors = new Dictionary <string, IStorageSensor>()
};
try
{
TableOperation insert_device_operation = TableOperation
.Insert(AzureStorage.CreateDeviceTableEntity(device));
TableResult result;
result = this.DevicesTable.Execute(insert_device_operation);
device.ETag = result.Etag;
user.Devices.Add(device.Id);
TableOperation update_user_operation = TableOperation.Merge(CreateUserTableEntity(user));
result = this.UsersTable.Execute(update_user_operation);
user.ETag = result.Etag;
Log.WriteTableSuccess(string.
Format("Added device entity: {0}, Id: {1}, Token {2} to Devices table.",
device.Name, device.Id.ToUrn(), device.Token));
Log.WriteTableSuccess(string.Format("Added device entity: {0}, Id: {1}, to User entity {2}.",
device.Name, device.Id.ToUrn(), device.Token, user.Id.ToUrn()));
return(device);
}
catch (Exception e)
{
Log.WriteTableFailure(string.Format("Failed to add device entity: {0}, Id: {1}, Token {2}.",
device.Name, device.Id.ToUrn(), device.Token), e);
throw;
}
finally
{
OverlordIdentity.DeleteClaim(Resource.Storage, StorageAction.AddDevice);
}
}
public IStorageDevice UpdateDevice(IStorageDevice device)
{
TableOperation update_device_operation = TableOperation.Merge(CreateDeviceTableEntity(device));
try
{
TableResult result = this.DevicesTable.Execute(update_device_operation);
Log.WriteTableSuccess(string.Format("Updated device entity: {0}, Id: {1}, Token: {2}",
device.Name, device.Id.ToUrn(), device.Token, device.Id.ToUrn()));
device.ETag = result.Etag;
return(device);
}
catch (Exception e)
{
Log.WriteTableFailure(string.Format("Failed to update device entity: Id: {0}, Token: {1}.",
device.Id.ToUrn(), device.Token), e);
throw;
}
finally
{
OverlordIdentity.DeleteClaim(Resource.Storage, StorageAction.UpdateDevice);
}
}
public IStorageChannel AddChannel(string channel_name, string channel_description,
string sensor_type, string channel_units, List <IStorageAlert> alerts)
{
OverlordIdentity.AddClaim(Resource.Storage, StorageAction.FindDevice);
IStorageDevice device = this.GetCurrentDevice();
IStorageChannel channel = new IStorageChannel()
{
Id = Guid.NewGuid(),
Name = channel_name,
Description = channel_description,
SensorType = sensor_type,
Alerts = alerts
};
try
{
TableOperation insert_channel_operation = TableOperation
.Insert(AzureStorage.CreateChannelTableEntity(channel));
TableResult result;
result = this.ChannelsTable.Execute(insert_channel_operation);
Log.WriteTableSuccess(string.Format("Added Channel entity: {0}, Id: {1}.",
channel.Name, channel.Id.ToUrn()));
return(channel);
}
catch (Exception e)
{
Log.WriteTableFailure(string.Format("Failed to add Channel entity: {0}, Id: {1}.", channel.Name,
channel.Id), e);
throw;
}
finally
{
OverlordIdentity.DeleteClaim(Resource.Storage, StorageAction.AddChannel);
}
}
public IStorageDeviceReading AddDeviceReading(IStorageDevice device, DateTime time, IDictionary <string, object> values)
{
if (values.Any(v => !v.Key.IsVaildSensorName()))
{
string bad_sensors = values.Where(v => !v.Key.IsVaildSensorName())
.Select(v => v.Key + ":" + v.Value).Aggregate((a, b) => { return(a + " " + b + ","); });
throw new ArgumentException("Device reading has bad sensor names. {0}", bad_sensors);
}
if (values.Any(v => v.Key.ToSensorType() != v.Value.GetType().UnderlyingSystemType))
{
string bad_sensors = values.Where(v => v.Key.ToSensorType() !=
v.Value.GetType().UnderlyingSystemType)
.Select(v => v.Key + ":" + v.Value).Aggregate((a, b) => { return(a + " " + b + ","); });
throw new ArgumentException(string.Format("Device reading has bad sensor values: {0}",
bad_sensors));
}
IStorageDeviceReading reading = new IStorageDeviceReading()
{
DeviceId = device.Id,
Time = time,
SensorValues = values
};
TableOperation insert_operation = TableOperation
.InsertOrMerge(AzureStorage.CreateDeviceReadingEntity(reading));
TableResult result;
try
{
result = this.SensorReadingsTable.Execute(insert_operation);
reading.ETag = result.Etag;
Log.WriteTableSuccess(string.Format
("Added device reading entity: Partition: {0}, RowKey: {1}, Sensor values: {2}",
reading.Time.GeneratePartitionKey(),
string.Format(CultureInfo.InvariantCulture, DeviceReadingKeyFormat,
reading.DeviceId, reading.Time.GetTicks()),
reading.SensorValues
.Select(v => v.Key + ":" + v.Value)
.Aggregate((a, b) => { return(a + "," + b + " "); })));
}
catch (Exception e)
{
Log.WriteTableFailure(string.Format
("Added device reading entity: Partition: {0}, RowKey: {1}, {2}",
reading.Time.GeneratePartitionKey(),
string.Format(CultureInfo.InvariantCulture, DeviceReadingKeyFormat,
reading.DeviceId, reading.Time.GetTicks()),
reading.SensorValues
.Select(v => v.Key + ":" + v.Value)
.Aggregate((a, b) => { return(a + "," + b + " "); })), e);
throw;
}
finally
{
OverlordIdentity.DeleteClaim(Resource.Storage, StorageAction.AddDeviceReading);
}
try
{
IStorageDigestMessage message = new IStorageDigestMessage()
{
Device = device,
Time = time,
SensorValues = reading.SensorValues,
ETag = reading.ETag
};
this.DigestQueue.AddMessage(new CloudQueueMessage(JsonConvert.SerializeObject(message, this.jss)));
Log.WriteQueueSuccess(string.Format
("Added digest message for device reading entity: Partition: {0}, RowKey: {1}, Sensor values: {2}",
reading.Time.GeneratePartitionKey(),
string.Format(CultureInfo.InvariantCulture, DeviceReadingKeyFormat,
reading.DeviceId, reading.Time.GetTicks()),
reading.SensorValues
.Select(v => v.Key + ":" + v.Value)
.Aggregate((a, b) => { return(a + "," + b + " "); })));
return(reading);
}
catch (Exception e)
{
Log.WriteQueueFailure(string.Format
("Failed to add digest message for device reading entity: Partition: {0}, RowKey: {1}, {2}",
reading.Time.GeneratePartitionKey(),
string.Format(CultureInfo.InvariantCulture, DeviceReadingKeyFormat,
reading.DeviceId, reading.Time.GetTicks()),
reading.SensorValues
.Select(v => v.Key + ":" + v.Value)
.Aggregate((a, b) => { return(a + "," + b + " "); })), e);
throw;
}
}
public static IStorageDevice FindDevice(this IList <IStorageDevice> list, IStorageDevice device)
{
IStorageDeviceEq eq = new IStorageDeviceEq();
return(list.FirstOrDefault(d => eq.Equals(device, d)));
}
public static bool ContainsDevice(this IList <IStorageDevice> list, IStorageDevice device)
{
return(list.Contains(device, new IStorageDeviceEq()));
}