/// <summary>
/// Main function, receiving structured command-line arguments
/// via the System.Console.DragonFruit package.
/// For example: dotnet run -- --domain-id 54 --sample-count 5
/// </summary>
/// <param name="domainId">The domain ID to create the DomainParticipant</param>
/// <param name="sampleCount">The number of data samples to receive before exiting</param>
public static void Main(int domainId = 0, int sampleCount = int.MaxValue)
{
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// DomainParticipant QoS is configured in USER_QOS_PROFILES.xml
//
// A participant needs to be Disposed to release middleware resources.
// The 'using' keyword indicates that it will be Disposed when this
// scope ends.
using DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(domainId);
// A Topic has a name and a datatype. Create dynamically-typed
// Topic named "HelloWorld Topic" with the type definition of
// "HelloWorld" in hello_world.xml. To get the type we use a QosProvider
var provider = new QosProvider("../hello_world.xml");
Topic <DynamicData> topic = participant.CreateTopic(
"Example HelloWorld",
provider.GetType("HelloWorld"));
// A Subscriber allows an application to create one or more DataReaders
// Subscriber QoS is configured in USER_QOS_PROFILES.xml
Subscriber subscriber = participant.CreateSubscriber();
// This DataReader reads data of type Temperature on Topic
// "ChocolateTemperature". DataReader QoS is configured in
// USER_QOS_PROFILES.xml
DataReader <DynamicData> reader = subscriber.CreateDataReader(topic);
// Obtain the DataReader's Status Condition
StatusCondition statusCondition = reader.StatusCondition;
// Enable the 'data available' status.
statusCondition.EnabledStatuses = StatusMask.DataAvailable;
// Associate an event handler with the status condition.
// This will run when the condition is triggered, in the context of
// the dispatch call (see below)
int samplesRead = 0;
statusCondition.Triggered += _ => samplesRead += ProcessData(reader);
// Create a WaitSet and attach the StatusCondition
var waitset = new WaitSet();
waitset.AttachCondition(statusCondition);
while (samplesRead < sampleCount)
{
// Dispatch will call the handlers associated to the WaitSet
// conditions when they activate
Console.WriteLine("HelloWorld subscriber sleeping for 4 sec...");
waitset.Dispatch(Duration.FromSeconds(4));
}
}
private void RunExample(int domainId, int sampleCount)
{
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// DomainParticipant QoS is configured in USER_QOS_PROFILES.xml
DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(domainId);
// A Topic has a name and a datatype. Create a Topic named
// "ChocolateTemperature" with type Temperature
// In this example we use a DynamicType defined in XML, which creates
// a DynamicData topic.
var provider = new QosProvider("../chocolate_factory.xml");
Topic <DynamicData> topic = participant.CreateTopic(
"ChocolateTemperature",
provider.GetType("Temperature"));
// A Subscriber allows an application to create one or more DataReaders
// Subscriber QoS is configured in USER_QOS_PROFILES.xml
Subscriber subscriber = participant.CreateSubscriber();
// This DataReader reads data of type Temperature on Topic
// "ChocolateTemperature". DataReader QoS is configured in
// USER_QOS_PROFILES.xml
DataReader <DynamicData> reader = subscriber.CreateDataReader(topic);
// Obtain the DataReader's Status Condition
StatusCondition statusCondition = reader.StatusCondition;
// Enable the 'data available' status.
statusCondition.EnabledStatuses = StatusMask.DataAvailable;
// Associate an event handler with the status condition.
// This will run when the condition is triggered, in the context of
// the dispatch call (see below)
int samplesRead = 0;
statusCondition.Triggered += _ => samplesRead += ProcessData(reader);
// Create a WaitSet and attach the StatusCondition
var waitset = new WaitSet();
waitset.AttachCondition(statusCondition);
while (samplesRead < sampleCount && !shutdownRequested)
{
// Dispatch will call the handlers associated to the WaitSet
// conditions when they activate
Console.WriteLine("ChocolateTemperature subscriber sleeping for 4 sec...");
waitset.Dispatch(Duration.FromSeconds(4));
}
}
/// <summary>
/// Processes the data received by the DataReader.
/// </summary>
public void Run(int sampleCount)
{
// Start capturing traffic for one participant.
NetworkCapture capture = NetworkCapture.Start(
participant,
"subscriber");
while (samplesRead < sampleCount && continueRunning)
{
// Dispatch will call the handlers associated to the WaitSet
// conditions when they activate
Console.WriteLine("HelloWorld subscriber sleeping for 4 sec...");
waitset.Dispatch(Duration.FromSeconds(4));
}
}
/// <summary>
/// Processes the data received by the DataReader.
/// </summary>
public void Run(int sampleCount)
{
while (samplesRead < sampleCount && continueRunning)
{
// Dispatch will call the handlers associated to the WaitSet
// conditions when they activate
Console.WriteLine("HelloWorld subscriber sleeping up to 1 sec...");
waitset.Dispatch(Duration.FromSeconds(1));
var status = reader.DataReaderCacheStatus;
Console.WriteLine("Instance statistics: ");
Console.WriteLine($" * Alive instance count: {status.AliveInstanceCount}");
Console.WriteLine($" * No-writers instance count: {status.NoWritersInstanceCount}");
Console.WriteLine($" * Disposed instance count: {status.DisposedInstanceCount}");
Console.WriteLine($" * Detached instance count: {status.DetachedInstanceCount}");
}
}
/// <summary>
/// Process the data received by the readers
/// </summary>
public Task Run(int _, CancellationToken cancellationToken)
{
var condition = subscriber.StatusCondition;
condition.EnabledStatuses = StatusMask.DataOnReaders;
condition.Triggered += ProcessData;
var waitSet = new WaitSet();
waitSet.AttachCondition(condition);
return(Task.Run(() =>
{
while (!cancellationToken.IsCancellationRequested)
{
waitSet.Dispatch(Duration.FromSeconds(1));
}
}, cancellationToken));
}
private void RunExample(int domainId, string stationKind)
{
if (!Enum.TryParse <StationKind>(stationKind, out var currentStation))
{
throw new ArgumentException("Invalid station");
}
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// Uses TemperingApplication QoS profile to set participant name.
var qosProvider = new QosProvider("./qos_profiles.xml");
// By specifying a default library, we can later refer to the
// profiles without the library name
qosProvider.DefaultLibrary = "ChocolateFactoryLibrary";
DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(
domainId,
qosProvider.GetDomainParticipantQos("IngredientApplication"));
Topic <Temperature> temperatureTopic =
participant.CreateTopic <Temperature>("ChocolateTemperature");
Topic <ChocolateLotState> lotStateTopic =
participant.CreateTopic <ChocolateLotState>("ChocolateLotState");
ContentFilteredTopic <ChocolateLotState> filteredLotStateTopic =
participant.CreateContentFilteredTopic(
name: "FilteredLot",
relatedTopic: lotStateTopic,
filter: new Filter(
expression: "next_station = %0",
parameters: new string[] { $"'{stationKind}'" }));
Publisher publisher = participant.CreatePublisher();
// Create DataWriter of Topic "ChocolateLotState"
// using ChocolateLotStateProfile QoS profile for State Data
DataWriter <ChocolateLotState> lotStateWriter = publisher.CreateDataWriter(
lotStateTopic,
qosProvider.GetDataWriterQos("ChocolateLotStateProfile"));
Subscriber subscriber = participant.CreateSubscriber();
// Create DataReader of Topic "ChocolateLotState", filtered by
// next_station, and using ChocolateLotStateProfile QoS profile for
// State Data.
DataReader <ChocolateLotState> lotStateReader = subscriber.CreateDataReader(
filteredLotStateTopic,
qosProvider.GetDataReaderQos("ChocolateLotStateProfile"));
// Monitor the DataAvailable status
StatusCondition statusCondition = lotStateReader.StatusCondition;
statusCondition.EnabledStatuses = StatusMask.DataAvailable;
statusCondition.Triggered +=
_ => ProcessLot(currentStation, lotStateReader, lotStateWriter);
var waitset = new WaitSet();
waitset.AttachCondition(statusCondition);
while (!shutdownRequested)
{
// Wait for ChocolateLotState
Console.WriteLine("Waiting for lot");
waitset.Dispatch(Duration.FromSeconds(10));
}
}
private void RunExample(int domainId, string sensorId)
{
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// DomainParticipant QoS is configured in USER_QOS_PROFILES.xml
DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(domainId);
// A Topic has a name and a datatype. Create Topics using the types
// defined in chocolate_factory.xml
var provider = new QosProvider("../chocolate_factory.xml");
Topic <Temperature> temperatureTopic = participant.CreateTopic(
"ChocolateTemperature",
types.Temperature);
Topic <ChocolateLotState> lotStateTopic = participant.CreateTopic(
"ChocolateLotState",
types.ChocolateLotState);
// A Publisher allows an application to create one or more DataWriters
// Publisher QoS is configured in USER_QOS_PROFILES.xml
Publisher publisher = participant.CreatePublisher();
// Create DataWriters of Topics "ChocolateTemperature" & "ChocolateLotState"
// DataWriter QoS is configured in USER_QOS_PROFILES.xml
DataWriter <Temperature> temperatureWriter =
publisher.CreateDataWriter(temperatureTopic);
DataWriter <ChocolateLotState> lotStateWriter =
publisher.CreateDataWriter(lotStateTopic);
// A Subscriber allows an application to create one or more DataReaders
// Subscriber QoS is configured in USER_QOS_PROFILES.xml
Subscriber subscriber = participant.CreateSubscriber();
// This DataReader reads data of type Temperature on Topic
// "ChocolateTemperature". DataReader QoS is configured in
// USER_QOS_PROFILES.xml
DataReader <ChocolateLotState> lotStateReader =
subscriber.CreateDataReader(lotStateTopic);
// Obtain the DataReader's Status Condition
StatusCondition statusCondition = lotStateReader.StatusCondition;
// Enable the 'data available' status.
statusCondition.EnabledStatuses = StatusMask.DataAvailable;
// Associate an event handler with the status condition.
// This will run when the condition is triggered, in the context of
// the dispatch call (see below)
statusCondition.Triggered +=
_ => ProcessLot(lotStateReader, lotStateWriter);
// Create a WaitSet and attach the StatusCondition
var waitset = new WaitSet();
waitset.AttachCondition(statusCondition);
// Create a thread to periodically publish the temperature
Console.WriteLine($"ChocolateTemperature Sensor with ID: {sensorId} starting");
var temperatureTask = Task.Run(
() => PublishTemperature(temperatureWriter, sensorId));
while (!shutdownRequested)
{
// Wait for ChocolateLotState
Console.WriteLine("Waiting for lot");
waitset.Dispatch(Duration.FromSeconds(4));
}
temperatureTask.Wait();
}
private void RunExample(
int domainId = 0,
uint lotsToProcess = 10)
{
// Loads the QoS from the qos_profiles.xml file.
var qosProvider = new QosProvider("./qos_profiles.xml");
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// Load DomainParticipant QoS profile
var participantQos = qosProvider.GetDomainParticipantQos(
"ChocolateFactoryLibrary::MonitoringControlApplication");
DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(domainId, participantQos);
// A Topic has a name and a datatype. Create a Topic with type
// ChocolateLotState. Topic name is a constant defined in the IDL file.
Topic <ChocolateLotState> lotStateTopic =
participant.CreateTopic <ChocolateLotState>("ChocolateLotState");
// Add a Topic for Temperature to this application
Topic <Temperature> temperatureTopic =
participant.CreateTopic <Temperature>("ChocolateTemperature");
ContentFilteredTopic <Temperature> filteredTemperatureTopic =
participant.CreateContentFilteredTopic(
name: "FilteredTemperature",
relatedTopic: temperatureTopic,
filter: new Filter(
expression: "degrees > %0 or degrees < %1",
parameters: new string[] { "32", "30" }));
// A Publisher allows an application to create one or more DataWriters
// Publisher QoS is configured in USER_QOS_PROFILES.xml
Publisher publisher = participant.CreatePublisher();
// This DataWriter writes data on Topic "ChocolateLotState"
var writerQos = qosProvider.GetDataWriterQos(
"ChocolateFactoryLibrary::ChocolateLotStateProfile");
DataWriter <ChocolateLotState> lotStateWriter =
publisher.CreateDataWriter(lotStateTopic, writerQos);
// A Subscriber allows an application to create one or more DataReaders
// Subscriber QoS is configured in USER_QOS_PROFILES.xml
Subscriber subscriber = participant.CreateSubscriber();
// Create DataReader of Topic "ChocolateLotState".
// DataReader QoS is configured in USER_QOS_PROFILES.xml
var readerQos = qosProvider.GetDataReaderQos(
"ChocolateFactoryLibrary::ChocolateLotStateProfile");
DataReader <ChocolateLotState> lotStateReader =
subscriber.CreateDataReader(lotStateTopic, readerQos);
// Add a DataReader for Temperature to this application
readerQos = qosProvider.GetDataReaderQos(
"ChocolateFactoryLibrary::ChocolateTemperatureProfile");
DataReader <Temperature> temperatureReader =
subscriber.CreateDataReader(filteredTemperatureTopic, readerQos);
// Obtain the DataReader's Status Condition
StatusCondition temperatureStatusCondition = temperatureReader.StatusCondition;
temperatureStatusCondition.EnabledStatuses = StatusMask.DataAvailable;
// Associate a handler with the status condition. This will run when the
// condition is triggered, in the context of the dispatch call (see below)
temperatureStatusCondition.Triggered +=
_ => MonitorTemperature(temperatureReader);
// Do the same with the lotStateReader's StatusCondition
StatusCondition lotStateStatusCondition = lotStateReader.StatusCondition;
lotStateStatusCondition.EnabledStatuses = StatusMask.DataAvailable;
int lotsProcessed = 0;
lotStateStatusCondition.Triggered +=
_ => lotsProcessed += MonitorLotState(lotStateReader);
// Create a WaitSet and attach the StatusCondition
var waitset = new WaitSet();
waitset.AttachCondition(lotStateStatusCondition);
// Add the new DataReader's StatusCondition to the Waitset
waitset.AttachCondition(temperatureStatusCondition);
// Start publishing in a separate thread
var startLotTask = Task.Run(() => PublishStartLot(lotStateWriter, lotsToProcess));
while (!shutdownRequested && lotsProcessed < lotsToProcess)
{
waitset.Dispatch(Duration.FromSeconds(4));
}
startLotTask.Wait();
}
private void RunExample(
int domainId = 0,
uint lotsToProcess = 10)
{
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// DomainParticipant QoS is configured in USER_QOS_PROFILES.xml
DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(domainId);
// A Topic has a name and a datatype. Create a Topic named
// "ChocolateLotState" with type ChocolateLotState
// In this example we use a DynamicType defined in XML, which creates
// a DynamicData topic.
Topic <ChocolateLotState> lotStateTopic = participant.CreateTopic(
"ChocolateLotState",
types.ChocolateLotState);
// Exercise #4.1: Add a Topic for Temperature to this application
Topic <Temperature> temperatureTopic = participant.CreateTopic(
"ChocolateTemperature",
types.Temperature);
// A Publisher allows an application to create one or more DataWriters
// Publisher QoS is configured in USER_QOS_PROFILES.xml
Publisher publisher = participant.CreatePublisher();
// This DataWriter writes data on Topic "ChocolateLotState"
// DataWriter QoS is configured in USER_QOS_PROFILES.xml
DataWriter <ChocolateLotState> lotStateWriter =
publisher.CreateDataWriter(lotStateTopic);
// A Subscriber allows an application to create one or more DataReaders
// Subscriber QoS is configured in USER_QOS_PROFILES.xml
Subscriber subscriber = participant.CreateSubscriber();
// Create DataReader of Topic "ChocolateLotState".
// DataReader QoS is configured in USER_QOS_PROFILES.xml
DataReader <ChocolateLotState> lotStateReader =
subscriber.CreateDataReader(lotStateTopic);
// Exercise #4.2: Add a DataReader for Temperature to this application
DataReader <Temperature> temperatureReader =
subscriber.CreateDataReader(temperatureTopic);
// Obtain the DataReader's Status Condition
StatusCondition temperatureStatusCondition = temperatureReader.StatusCondition;
temperatureStatusCondition.EnabledStatuses = StatusMask.DataAvailable;
// Associate a handler with the status condition. This will run when the
// condition is triggered, in the context of the dispatch call (see below)
temperatureStatusCondition.Triggered += _ => MonitorTemperature(temperatureReader);
// Do the same with the lotStateReader's StatusCondition
StatusCondition lotStateStatusCondition = lotStateReader.StatusCondition;
lotStateStatusCondition.EnabledStatuses = StatusMask.DataAvailable;
int lotsProcessed = 0;
lotStateStatusCondition.Triggered +=
_ => lotsProcessed += MonitorLotState(lotStateReader);
// Create a WaitSet and attach the StatusCondition
WaitSet waitset = new WaitSet();
waitset.AttachCondition(lotStateStatusCondition);
// Exercise #4.3: Add the new DataReader's StatusCondition to the Waitset
waitset.AttachCondition(temperatureStatusCondition);
var startLotTask = Task.Run(() => PublishStartLot(lotStateWriter, lotsToProcess));
while (!shutdownRequested && lotsProcessed < lotsToProcess)
{
waitset.Dispatch(Duration.FromSeconds(4));
}
startLotTask.Wait();
}
private void RunExample(int domainId, string sensorId)
{
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// Uses TemperingApplication QoS profile to set participant name.
var qosProvider = new QosProvider("./qos_profiles.xml");
var participantQos = qosProvider.GetDomainParticipantQos(
"ChocolateFactoryLibrary::TemperingApplication");
DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(domainId, participantQos);
// Create the topics
Topic <Temperature> temperatureTopic =
participant.CreateTopic <Temperature>("ChocolateTemperature");
Topic <ChocolateLotState> lotStateTopic =
participant.CreateTopic <ChocolateLotState>("ChocolateLotState");
// Exercise #1.1: Create a Content-Filtered Topic that filters out
// chocolate lot state unless the next_station = TEMPERING_CONTROLLER
// A Publisher allows an application to create one or more DataWriters
// Create Publisher with default QoS.
Publisher publisher = participant.CreatePublisher();
// Create DataWriter of Topic "ChocolateTemperature"
// using ChocolateTemperatureProfile QoS profile for Streaming Data
DataWriter <Temperature> temperatureWriter = publisher.CreateDataWriter(
temperatureTopic,
qos: qosProvider.GetDataWriterQos("ChocolateFactoryLibrary::ChocolateTemperatureProfile"));
// Create DataWriter of Topic "ChocolateLotState"
// using ChocolateLotStateProfile QoS profile for State Data
DataWriter <ChocolateLotState> lotStateWriter = publisher.CreateDataWriter(
lotStateTopic,
qos: qosProvider.GetDataWriterQos("ChocolateFactoryLibrary::ChocolateLotStateProfile"));
// A Subscriber allows an application to create one or more DataReaders
Subscriber subscriber = participant.CreateSubscriber();
// Create DataReader of Topic "ChocolateLotState".
// using ChocolateLotStateProfile QoS profile for State Data
// Exercise #1.2: Change the DataReader's Topic to use a
// Content-Filtered Topic
DataReader <ChocolateLotState> lotStateReader = subscriber.CreateDataReader(
lotStateTopic,
qos: qosProvider.GetDataReaderQos("ChocolateFactoryLibrary::ChocolateLotStateProfile"),
preEnableAction: reader => reader.RequestedIncompatibleQos += OnRequestedIncompatibleQos);
// Obtain the DataReader's Status Condition
StatusCondition statusCondition = lotStateReader.StatusCondition;
// Enable the 'data available' status.
statusCondition.EnabledStatuses = StatusMask.DataAvailable;
// Associate an event handler with the status condition.
// This will run when the condition is triggered, in the context of
// the dispatch call (see below)
statusCondition.Triggered +=
_ => ProcessLot(lotStateReader, lotStateWriter);
// Create a WaitSet and attach the StatusCondition
var waitset = new WaitSet();
waitset.AttachCondition(statusCondition);
// Create a thread to periodically publish the temperature
Console.WriteLine($"ChocolateTemperature Sensor with ID: {sensorId} starting");
var temperatureTask = Task.Run(
() => PublishTemperature(temperatureWriter, sensorId));
while (!shutdownRequested)
{
// Wait for ChocolateLotState
Console.WriteLine("Waiting for lot");
waitset.Dispatch(Duration.FromSeconds(10));
}
temperatureTask.Wait();
}
private void RunExample(
int domainId = 0,
uint lotsToProcess = 10)
{
// Exercise #1.1: Add QoS provider
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// Exercise #1.2: Load DomainParticipant QoS profile
DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(domainId);
// A Topic has a name and a datatype. Create a Topic named
// "ChocolateLotState" with type ChocolateLotState.
Topic <ChocolateLotState> lotStateTopic = participant.CreateTopic <ChocolateLotState>(
CHOCOLATE_LOT_STATE_TOPIC.Value);
// Add a Topic for Temperature to this application
Topic <Temperature> temperatureTopic = participant.CreateTopic <Temperature>(
CHOCOLATE_TEMPERATURE_TOPIC.Value);
// A Publisher allows an application to create one or more DataWriters
// Publisher QoS is configured in USER_QOS_PROFILES.xml
Publisher publisher = participant.CreatePublisher();
// This DataWriter writes data on Topic "ChocolateLotState"
// Exercise #4.1: Load ChocolateLotState DataWriter QoS profile after
// debugging incompatible QoS
DataWriter <ChocolateLotState> lotStateWriter =
publisher.CreateDataWriter(lotStateTopic);
// A Subscriber allows an application to create one or more DataReaders
// Subscriber QoS is configured in USER_QOS_PROFILES.xml
Subscriber subscriber = participant.CreateSubscriber();
// Create DataReader of Topic "ChocolateLotState".
// Exercise #1.3: Update the lotStateReader and temperatureReader
// to use correct QoS
DataReader <ChocolateLotState> lotStateReader =
subscriber.CreateDataReader(lotStateTopic);
// Add a DataReader for Temperature to this application
DataReader <Temperature> temperatureReader =
subscriber.CreateDataReader(temperatureTopic);
// Obtain the DataReader's Status Condition
StatusCondition temperatureStatusCondition = temperatureReader.StatusCondition;
temperatureStatusCondition.EnabledStatuses = StatusMask.DataAvailable;
// Associate a handler with the status condition. This will run when the
// condition is triggered, in the context of the dispatch call (see below)
temperatureStatusCondition.Triggered += _ => MonitorTemperature(temperatureReader);
// Do the same with the lotStateReader's StatusCondition
StatusCondition lotStateStatusCondition = lotStateReader.StatusCondition;
lotStateStatusCondition.EnabledStatuses = StatusMask.DataAvailable;
int lotsProcessed = 0;
lotStateStatusCondition.Triggered +=
_ => lotsProcessed += MonitorLotState(lotStateReader);
// Create a WaitSet and attach the StatusCondition
var waitset = new WaitSet();
waitset.AttachCondition(lotStateStatusCondition);
// Add the new DataReader's StatusCondition to the Waitset
waitset.AttachCondition(temperatureStatusCondition);
// Start publishing in a separate thread
var startLotTask = Task.Run(() => PublishStartLot(lotStateWriter, lotsToProcess));
while (!shutdownRequested && lotsProcessed < lotsToProcess)
{
waitset.Dispatch(Duration.FromSeconds(4));
}
startLotTask.Wait();
}
// Exercise #4.4: Add monitor_temperature function
private void RunExample(
int domainId = 0,
uint lotsToProcess = 10)
{
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// DomainParticipant QoS is configured in USER_QOS_PROFILES.xml
DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(domainId);
// A Topic has a name and a datatype. Create a Topic named
// "ChocolateLotState" with type ChocolateLotState.
Topic <ChocolateLotState> lotStateTopic = participant.CreateTopic <ChocolateLotState>(
"ChocolateLotState");
// Exercise #4.1: Add a Topic for Temperature to this application
// A Publisher allows an application to create one or more DataWriters
// Publisher QoS is configured in USER_QOS_PROFILES.xml
Publisher publisher = participant.CreatePublisher();
// This DataWriter writes data on Topic "ChocolateLotState"
// DataWriter QoS is configured in USER_QOS_PROFILES.xml
DataWriter <ChocolateLotState> lotStateWriter =
publisher.CreateDataWriter(lotStateTopic);
// A Subscriber allows an application to create one or more DataReaders
// Subscriber QoS is configured in USER_QOS_PROFILES.xml
Subscriber subscriber = participant.CreateSubscriber();
// Create DataReader of Topic "ChocolateLotState".
// DataReader QoS is configured in USER_QOS_PROFILES.xml
DataReader <ChocolateLotState> lotStateReader =
subscriber.CreateDataReader(lotStateTopic);
// Exercise #4.2: Add a DataReader for Temperature to this application
// Obtain the DataReader's Status Condition
StatusCondition lotStateStatusCondition = lotStateReader.StatusCondition;
// Enable the 'data available' status.
lotStateStatusCondition.EnabledStatuses = StatusMask.DataAvailable;
int lotsProcessed = 0;
lotStateStatusCondition.Triggered +=
_ => lotsProcessed += MonitorLotState(lotStateReader);
// Create a WaitSet and attach the StatusCondition
WaitSet waitset = new WaitSet();
waitset.AttachCondition(lotStateStatusCondition);
// Exercise #4.3: Add the new DataReader's StatusCondition to the Waitset
// Start publishing in a separate thread
var startLotTask = Task.Run(() => PublishStartLot(lotStateWriter, lotsToProcess));
while (!shutdownRequested && lotsProcessed < lotsToProcess)
{
waitset.Dispatch(Duration.FromSeconds(4));
}
startLotTask.Wait();
}
private void RunExample(int domainId, string sensorId)
{
// A DomainParticipant allows an application to begin communicating in
// a DDS domain. Typically there is one DomainParticipant per application.
// Uses TemperingApplication QoS profile to set participant name.
var qosProvider = new QosProvider("./qos_profiles.xml");
var participantQos = qosProvider.GetDomainParticipantQos(
"ChocolateFactoryLibrary::TemperingApplication");
DomainParticipant participant = DomainParticipantFactory.Instance
.CreateParticipant(domainId, participantQos);
// A Topic has a name and a datatype.
Topic <Temperature> temperatureTopic = participant.CreateTopic <Temperature>(
CHOCOLATE_TEMPERATURE_TOPIC.Value);
Topic <ChocolateLotState> lotStateTopic = participant.CreateTopic <ChocolateLotState>(
CHOCOLATE_LOT_STATE_TOPIC.Value);
// A Publisher allows an application to create one or more DataWriters
// Create Publisher with default QoS.
Publisher publisher = participant.CreatePublisher();
// Create DataWriter of Topic "ChocolateTemperature"
// using ChocolateTemperatureProfile QoS profile for Streaming Data
DataWriter <Temperature> temperatureWriter = publisher.CreateDataWriter(
temperatureTopic,
qos: qosProvider.GetDataWriterQos("ChocolateFactoryLibrary::ChocolateTemperatureProfile"));
// Create DataWriter of Topic "ChocolateLotState"
// using ChocolateLotStateProfile QoS profile for State Data
DataWriter <ChocolateLotState> lotStateWriter = publisher.CreateDataWriter(
lotStateTopic,
qos: qosProvider.GetDataWriterQos("ChocolateFactoryLibrary::ChocolateLotStateProfile"));
// A Subscriber allows an application to create one or more DataReaders
Subscriber subscriber = participant.CreateSubscriber();
// This DataReader reads data of type Temperature on Topic
// "ChocolateTemperature" using ChocolateLotStateProfile QoS
// profile for State Data.
//
// We will handle the "requested incompatible qos" event. By doing
// it as a preEnableAction, we avoid a race condition in which
// the event could trigger right after the reader creation but
// right before adding the event handler.
DataReader <ChocolateLotState> lotStateReader = subscriber.CreateDataReader(
lotStateTopic,
qos: qosProvider.GetDataReaderQos("ChocolateFactoryLibrary::ChocolateLotStateProfile"),
preEnableAction: reader => reader.RequestedIncompatibleQos += OnRequestedIncompatibleQos);
// Obtain the DataReader's Status Condition
StatusCondition statusCondition = lotStateReader.StatusCondition;
// Enable the 'data available' status.
statusCondition.EnabledStatuses = StatusMask.DataAvailable;
// Associate an event handler with the status condition.
// This will run when the condition is triggered, in the context of
// the dispatch call (see below)
statusCondition.Triggered +=
_ => ProcessLot(lotStateReader, lotStateWriter);
// Create a WaitSet and attach the StatusCondition
var waitset = new WaitSet();
waitset.AttachCondition(statusCondition);
// Create a thread to periodically publish the temperature
Console.WriteLine($"ChocolateTemperature Sensor with ID: {sensorId} starting");
var temperatureTask = Task.Run(
() => PublishTemperature(temperatureWriter, sensorId));
while (!shutdownRequested)
{
// Wait for ChocolateLotState
Console.WriteLine("Waiting for lot");
waitset.Dispatch(Duration.FromSeconds(4));
}
temperatureTask.Wait();
}