Mastering Internet of Things

Defining basic properties

Our example model is static, as we mentioned before. We will not support editing of nodes:

public DateTime LastChanged => DateTime.MinValue; 

Our sensor will always be readable and never controllable. While the ISensor and IActuator interfaces define the methods for these actions, a class implementing the ISensor interface, for example, might not always be readable. It might depend on settings or timing:

public bool IsReadable => true; 
public bool IsControllable => false;

Our nodes will not define any commands either:

public bool HasCommands => false; 
public Task<IEnumerable<ICommand>> Commands => null; 

We need to define a localizable human-readable name for the node class:

public Task<string> GetTypeNameAsync(Language ...