private SensorHost LoadSensor(string filePath)
{
Log.Verbose($"Loading sensor [{Path.GetFileName(filePath)}]");
var s = new SensorHost(_client, this);
s.LoadFromFile(filePath);
if (s.IsCodeLoaded && s.IsCompiled)
{
if (!this.sensors.TryAdd(s.SensorIdentifier, s))
{
Log.Debug($"Unable to load sensor [{s.SensorIdentifier}] - same sensor name exists?");
}
else
{
Log.Debug($"Found and loaded sensor [{s.SensorIdentifier}]");
}
}
else
{
Log.Warn($"Unable to load/compile {filePath}: [{s.GetLastError}]");
}
return(s);
}
internal List <string> LoadBuiltInSensors()
{
System.Reflection.Assembly ass = System.Reflection.Assembly.GetEntryAssembly();
List <string> availableSensors = new List <string>();
var tasks = new List <Task <SensorHost> >();
foreach (System.Reflection.TypeInfo ti in ass.DefinedTypes)
{
if (ti.ImplementedInterfaces.Contains(typeof(ISensor)) && ti.Name != "SensorBase")
{
tasks.Add(Task.Run(() =>
{
var s = new SensorHost((ISensor)ass.CreateInstance(ti.FullName), _client, this);
if (s != null && !this.sensors.TryAdd(s.SensorIdentifier, s))
{
Log.Verbose($"Skipping built-in sensor [{s.SensorIdentifier}]");
}
return(s);
}));
}
}
Task.WaitAll(tasks.ToArray());
availableSensors.AddRange(tasks.Select(item => item.Result.SensorIdentifier).Where(ident => ident != null));
return(availableSensors);
}
public bool UnmapTopicToSensor(MqttMessage mqttMessage, SensorHost sensorHost)
{
Log.Debug($"Unmapping topic [{mqttMessage.GetRawTopic()}] for [{sensorHost.SensorIdentifier}]");
SensorHost previous;
bool result;
if (mqttMessage.GetRawTopic().Contains("/#")) // multi-level wildcard topic
{
sensorMultiLevelWildcardTopics.TryRemove(mqttMessage.GetRawTopic().Replace("/#", ""), out var sMultiWild);
result = true;
}
else if (mqttMessage.GetRawTopic().Contains("/+")) // single level wildcard topic
{
sensorSingleLevelWildcardTopics.TryRemove(mqttMessage.GetRawTopic().Replace("/+", ""), out var sSingleWild);
result = true;
}
else
{
result = sensorTopics.TryRemove(mqttMessage.GetRawTopic(), out previous);
if (sensorHost != previous)
{
Log.Warn($"{sensorHost.SensorIdentifier} unsubscribed for [{previous.SensorIdentifier}]");
}
}
return(result);
}
public bool MapTopicToSensor(MqttMessage mqttMessage, SensorHost sensorHost, bool prependDeviceId = true)
{
Log.Debug($"Mapping topic [{mqttMessage.GetRawTopic()}] for [{sensorHost.SensorIdentifier}]");
bool result;
try
{
mqttMessage.GetRawTopic().ValidateTopic();
}
catch (Exception ex)
{
Log.Debug($"Topic {mqttMessage.GetRawTopic()} validated false: {ex.Message}");
return(false);
}
if (mqttMessage.GetRawTopic().Contains("#")) // multi-level wildcard topic
{
result = sensorMultiLevelWildcardTopics.TryAdd(mqttMessage.GetRawTopic(), sensorHost);
}
else if (mqttMessage.GetRawTopic().Contains("+"))// single level wildcard topic
{
result = sensorSingleLevelWildcardTopics.TryAdd(mqttMessage.GetRawTopic(), sensorHost);
}
else
{
result = sensorTopics.TryAdd(mqttMessage.GetRawTopic(), sensorHost);
}
return(result);
}
/// <summary>
/// This is called by PC2MQTT after compiling the sensor.
/// </summary>
/// <remarks>
/// Load any databases, connect to any services, spin up any servers, etc.
/// Control will be returned to the sensor in <see cref="SensorMain"/> after all sensors have loaded.
/// Note that sensor scripts are non-blocking so other scripts will run as well, but if you take too long without
/// returning here your sensor will be disposed because it did not initialize in a timely manner.
/// </remarks>
/// <param name="sensorHost"></param>
/// <returns>True if initialized successfully, false if not.</returns>
public bool Initialize(SensorHost sensorHost)
{
Log = LogManager.GetCurrentClassLogger(GetSensorIdentifier());
this.sensorHost = sensorHost;
Log.Info($"Finishing initialization in {this.GetSensorIdentifier()}");
return(true);
}
public void UnmapAlltopics(SensorHost sensorHost)
{
foreach (var item in sensorTopics)
{
if (item.Value == sensorHost && item.Value.IsCompiled && item.Value.sensor.IsInitialized)
{
var mTopic = MqttMessageBuilder
.NewMessage()
.AddTopic(item.Key)
.UnsubscribeMessage
.Build();
Log.Debug($"Unsubscribing from [{item.Key}] for [{item.Value.sensor.GetSensorIdentifier()}]");
_client.Unsubscribe(mTopic);
sensorTopics.TryRemove(item.Key, out var removed);
}
}
foreach (var item in sensorMultiLevelWildcardTopics)
{
if (item.Value == sensorHost && item.Value.IsCompiled && item.Value.sensor.IsInitialized)
{
var mMulti = MqttMessageBuilder
.NewMessage()
.AddTopic(item.Key)
.UnsubscribeMessage
.Build();
Log.Debug($"Unsubscribing from [{item.Key}] for [{item.Value.sensor.GetSensorIdentifier()}]");
_client.Unsubscribe(mMulti);
sensorMultiLevelWildcardTopics.Remove(item.Key, out var removed);
}
}
foreach (var item in sensorSingleLevelWildcardTopics)
{
if (item.Value == sensorHost && item.Value.IsCompiled && item.Value.sensor.IsInitialized)
{
var mSingle = MqttMessageBuilder
.NewMessage()
.AddTopic(item.Key)
.UnsubscribeMessage
.Build();
Log.Debug($"Unsubscribing from [{item.Key}] for [{item.Value.sensor.GetSensorIdentifier()}]");
_client.Unsubscribe(mSingle);
sensorSingleLevelWildcardTopics.Remove(item.Key, out var removed);
}
}
}
/// <inheritdoc cref="SensorBase.Initialize(SensorHost)"/>
public new bool Initialize(SensorHost sensorHost)
{
// Initialize BadLogger so we can pass log messages
Log = LogManager.GetCurrentClassLogger(GetSensorIdentifier());
// You'll want to save this for later in the interface sensorHost object
this.sensorHost = sensorHost;
Log.Info($"(Initialize) CPU id: {System.Threading.Thread.GetCurrentProcessorId()} ThreadId: {System.Threading.Thread.CurrentThread.ManagedThreadId}");
Log.Info($"IsLinux: {CSScriptLib.Runtime.IsLinux} IsWin: {CSScriptLib.Runtime.IsWin} IsCore: { CSScriptLib.Runtime.IsCore} IsMono: {CSScriptLib.Runtime.IsMono} IsNet: {CSScriptLib.Runtime.IsNet}");
// Initialize needs to return true relatively quickly but you can stall for a while or run processor-intensive things beforehand.
// Control is returned to the sensor in SensorMain after initialization is complete.
Log.Info($"We're not done initializing yet.. just a bit longer..");
System.Threading.Thread.Sleep(2000);
// You can save and load data types that NewtonsoftJson can handle using built-in Save/Load features shown below
// Note that this data is only saved every 5 minutes or if the program gracefully shuts down!
// Or you can of course roll your own save/load methods.
string test = "hello world";
// Save the string "hello world" under the key "test" using sensorHost's SaveData method
sensorHost.SaveData("test", test);
// Retrieve the string with the same key "test".
// With this, you need to specify the type of the data you are retrieving
var stringResult1 = sensorHost.LoadData("test", type: typeof(string));
// This one will fail because it doesn't exist
var stringResult2 = sensorHost.LoadData("test2", type: typeof(string));
// This one will succeed because it has a default value supplied.
var stringResult3 = sensorHost.LoadData("test3", "test3", type: typeof(string));
Log.Info("Load Data [test] result: " + stringResult1);
// Can also use other data types such as collections
List <string> testList = new List <string>();
testList.Add("hello");
testList.Add("world");
testList.Add("!");
// save the collection under "testList"
// Note that overWrite is true by default and only shown as an example
sensorHost.SaveData("testList", testList, overWrite: true);
// Load it again. Note that we're setting global = false but it's not necessary.
// You can store global objects for use in other sensors with global = true
// For this data, however, we need to pass the type otherwise it returns a JArray.
List <string> resultList = sensorHost.LoadData("testList", global: false, type: typeof(List <string>));
Log.Info($"Load Data [testList] result: Count:{resultList.Count} [{String.Join(" ", resultList)}]");
System.Threading.Thread.Sleep(5000);
Log.Info($"Finishing initialization in {this.GetSensorIdentifier()}");
// Let PC2MQTT know that we're done and initialized properly.
// If for some reason your code didn't initialize properly you can return false
// Just make sure to clean up after yourself as best you can.
// uninitialized sensors are cleaned up automatically after all sensors are done loading.
return(true);
}
public void DisposeSensorHost(SensorHost sensorHost)
{
sensorHost.Dispose();
sensorHost = null;
}