static void Main(string[] args)
{
Console.WriteLine("Creating a .NET Qi Client...");
string server = ConfigurationManager.AppSettings["QiServerUrl"];
// set up a client to the Qi Service -- it is essential that you set the QiTenant header
QiHttpClientFactory<IQiServer> clientFactory = new QiHttpClientFactory<IQiServer>();
clientFactory.ProxyTimeout = new TimeSpan(0, 1, 0);
clientFactory.OnCreated((p) => p.DefaultHeaders.Add("QiTenant", "sampletenant"));
IQiServer qiclient = clientFactory.CreateChannel(new Uri(server));
try
{
// TODO -- remove tenant creation when provisioning is accomplished
Console.WriteLine("Creating a tenant named sampletenant");
QiTenant tenant = new QiTenant("sampletenant");
// submit to PI Cloud Historian to create the tenant in storage
qiclient.GetOrCreateTenant(tenant);
// Create a Qi Type -- the Qi Libraries let you do this via reflection
// First, create a type builder, then pass it the name of the class you are using for events.
// This greatly simplifies type creation
QiTypeBuilder typeBuilder = new QiTypeBuilder();
QiType evtType = typeBuilder.Create<SimpleEvent>();
evtType.Name = "SimpleEvent";
evtType.Id = "SimpleEvent";
QiType tp = qiclient.GetOrCreateType(evtType);
Console.WriteLine("Creating a stream in this tenant for simple event measurements");
QiStream sampleStream = new QiStream();
sampleStream.Name = "evtStream";
sampleStream.Id = "evtStream";
// set the TypeId property to the value of the Id property of the type you submitted
// All events submitted to this stream must be of this type
// Note there are Async versions of the client methods, too, using .NET TPL
sampleStream.TypeId = "SimpleEvent";
sampleStream.Description = "This is a sample stream for storing SimpleEvent type measurements";
QiStream strm = qiclient.GetOrCreateStream(sampleStream);
#region CRUD Operations
#region Create Events (Insert)
Console.WriteLine("Artificially generating 100 events at one second intervals and inserting them into the Qi Service");
Random rnd = new Random();
// How to insert a single event
SimpleEvent evt = new SimpleEvent(rnd.NextDouble() * 100, "deg C");
// for our contrived purposes, let's manually set the timestamp to 100 seconds in the past
DateTime start = DateTime.UtcNow.AddSeconds(-100.0);
evt.Timestamp = start;
qiclient.InsertValue("evtStream", evt);
List<SimpleEvent> events = new List<SimpleEvent>();
// how to insert an a collection of events
for (int i = 1; i < 100; i++)
{
evt = new SimpleEvent(rnd.NextDouble() * 100, "deg C");
evt.Timestamp = start.AddSeconds((double)i);
events.Add(evt);
}
qiclient.InsertValues<SimpleEvent>("evtStream", events);
Thread.Sleep(2000);
#endregion
#region Retrieve events for a time range
// use the round trip formatting for time
Console.WriteLine("Retrieving the inserted events");
Console.WriteLine("==============================");
IEnumerable<SimpleEvent> foundEvts = qiclient.GetWindowValues<SimpleEvent>("evtStream", start.ToString("o"), DateTime.UtcNow.ToString("o"));
DumpEvents(foundEvts);
#endregion
#region Update an event
Console.WriteLine();
Console.WriteLine("Updating values");
// take the first value inserted and update the value and UOM
evt = foundEvts.First<SimpleEvent>();
evt.Units = "deg F";
evt.Value = 212.0;
qiclient.UpdateValue<SimpleEvent>("evtStream", evt);
// update the collection of events (convert to deg F)
foreach (SimpleEvent evnt in events)
{
evnt.Units = "deg F";
evnt.Value = evnt.Value * 9 / 5 + 32.0;
}
qiclient.UpdateValues<SimpleEvent>("evtStream", events);
Thread.Sleep(2000);
Console.WriteLine("Retrieving the updated values");
Console.WriteLine("=============================");
foundEvts = qiclient.GetWindowValues<SimpleEvent>("evtStream", start.ToString("o"), DateTime.UtcNow.ToString("o"));
DumpEvents(foundEvts);
#endregion
#region Delete events
Console.WriteLine();
Console.WriteLine("Deleting events");
qiclient.RemoveValue<DateTime>("evtStream", evt.Timestamp);
qiclient.RemoveWindowValues("evtStream", foundEvts.First<SimpleEvent>().Timestamp.ToString("o"), foundEvts.Last<SimpleEvent>().Timestamp.ToString("o"));
Thread.Sleep(2000);
Console.WriteLine("Checking for events");
Console.WriteLine("===================");
foundEvts = qiclient.GetWindowValues<SimpleEvent>("evtStream", start.ToString("o"), DateTime.UtcNow.ToString("o"));
DumpEvents(foundEvts);
#endregion
#endregion
}
catch (QiHttpClientException qiex)
{
Console.WriteLine("Error in Qi Service Client: " + qiex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Other error: " + ex.Message);
}
finally
{
// clean up all created entities so you can run this again
// all entities are reference counted, so you must delete the stream, then the type it uses
try
{
qiclient.DeleteStream("evtStream");
}
catch (Exception exStrm)
{
Console.WriteLine("Error deleting stream, type is left: " + exStrm.Message);
}
try
{
qiclient.DeleteType("SimpleEvent");
}
catch (Exception exTyp)
{
Console.WriteLine("Error deleting stream: " + exTyp.Message);
}
try
{
qiclient.DeleteTenant("sampletenant");
}
catch (Exception exTnt)
{
Console.WriteLine("Error deleting tenant: " + exTnt.Message);
}
Console.WriteLine("Press ENTER to finish");
Console.ReadLine();
}
}
static void Main(string[] args)
{
Console.WriteLine("Creating a .NET Qi Client...");
string server = Constants.QiServerUrl;
QiType evtType = null;
QiHttpClientFactory <IQiServer> clientFactory = new QiHttpClientFactory <IQiServer>();
clientFactory.ProxyTimeout = new TimeSpan(0, 1, 0);
IQiServer qiclient = clientFactory.CreateChannel(new Uri(server));
IQiClientProxy proxy = (IQiClientProxy)qiclient;
proxy.OnBeforeInvoke((handler) => {
string token = AcquireAuthToken();
if (proxy.Client.DefaultHeaders.Contains("Authorization"))
{
proxy.Client.DefaultHeaders.Remove("Authorization");
}
proxy.Client.DefaultHeaders.Add("Authorization", new AuthenticationHeaderValue("Bearer", token).ToString());
});
try
{
// Create a Qi Type to reflect the event data being stored in Qi.
// The Qi Client Libraries provide QiTypeBuilder which constructs a QiType object
// based upon a class you define in your code.
Console.WriteLine("Creating a Qi type for WaveData instances");
QiTypeBuilder typeBuilder = new QiTypeBuilder();
evtType = typeBuilder.Create <WaveData>();
evtType.Id = "WaveType";
QiType tp = qiclient.GetOrCreateType(evtType);
// now let's create the stream to contain the events
// specify the type id of the QiType created above in the TypeId property of the QiStream object
// All events submitted to this stream must be of this type
Console.WriteLine("Creating a stream for simple event measurements");
QiStream sampleStream = new QiStream();
sampleStream.Name = "evtStream";
sampleStream.Id = "evtStream";
sampleStream.TypeId = tp.Id;
sampleStream.Description = "This is a sample stream for storing WaveData type measurements";
QiStream strm = qiclient.GetOrCreateStream(sampleStream);
#region CRUD Operations
#region Create Events (Insert)
Console.WriteLine("Artificially generating 100 events and inserting them into the Qi Service");
// Insert a single event into a stream
TimeSpan span = new TimeSpan(0, 1, 0);
WaveData evt = WaveData.Next(span, 2.0, 0);
qiclient.InsertValue("evtStream", evt);
// Inserting a collection of events into a stream
List <WaveData> events = new List <WaveData>();
for (int i = 2; i < 200; i += 2)
{
WaveData newEvt = WaveData.Next(span, 2.0, i);
events.Add(newEvt);
Thread.Sleep(400);
}
qiclient.InsertValues("evtStream", events);
Thread.Sleep(2000);
#endregion
#region Retrieve events for a time range
// use the round trip formatting for time
Console.WriteLine("Retrieving the inserted events");
Console.WriteLine("==============================");
IEnumerable <WaveData> foundEvts = qiclient.GetWindowValues <WaveData>("evtStream", "0", "198");
DumpEvents(foundEvts);
#endregion
#region Update an event
Console.WriteLine();
Console.WriteLine("Updating values");
// take the first value inserted and update the value using a multiplier of 4, while retaining the order
evt = foundEvts.First();
evt = WaveData.Next(span, 4.0, evt.Order);
qiclient.UpdateValue("evtStream", evt);
// update the collection of events (same span, multiplier of 4, retain order)
List <WaveData> newEvents = new List <WaveData>();
foreach (WaveData evnt in events)
{
WaveData newEvt = WaveData.Next(span, 4.0, evnt.Order);
newEvents.Add(newEvt);
Thread.Sleep(500);
}
qiclient.UpdateValues("evtStream", newEvents);
Thread.Sleep(2000);
Console.WriteLine("Retrieving the updated values");
Console.WriteLine("=============================");
foundEvts = qiclient.GetWindowValues <WaveData>("evtStream", "0", "198");
DumpEvents(foundEvts);
// illustrate how stream behaviors modify retrieval
// First, pull three items back with GetRangeValues for range values between events.
// The default behavior is continuous, so ExactOrCalculated should bring back interpolated values
Console.WriteLine();
Console.WriteLine(@"Retrieving three events without a stream behavior");
foundEvts = qiclient.GetRangeValues <WaveData>("evtStream", "1", 0, 3, false, QiBoundaryType.ExactOrCalculated);
DumpEvents(foundEvts);
// now, create a stream behavior with Discrete and attach it to the existing stream
QiStreamBehavior behavior = new QiStreamBehavior();
behavior.Id = "evtStreamStepLeading";
behavior.Mode = QiStreamMode.StepwiseContinuousLeading;
behavior = qiclient.GetOrCreateBehavior(behavior);
// update the stream to include this behavior
sampleStream.BehaviorId = behavior.Id;
qiclient.UpdateStream("evtStream", sampleStream);
// repeat the retrieval
Console.WriteLine();
Console.WriteLine("Retrieving three events with a stepwise stream behavior in effect -- compare to last retrieval");
foundEvts = qiclient.GetRangeValues <WaveData>("evtStream", "1", 0, 3, false, QiBoundaryType.ExactOrCalculated);
DumpEvents(foundEvts);
#endregion
#region Delete events
Console.WriteLine();
Console.WriteLine("Deleting events");
qiclient.RemoveValue("evtStream", 0);
qiclient.RemoveWindowValues("evtStream", 2, 198);
Thread.Sleep(2000);
Console.WriteLine("Checking for events");
Console.WriteLine("===================");
foundEvts = qiclient.GetWindowValues <WaveData>("evtStream", "0", "198");
DumpEvents(foundEvts);
Console.WriteLine("Test ran successfully");
Console.WriteLine("====================");
Console.WriteLine("Press any button to shutdown");
Console.ReadLine();
#endregion
#endregion
}
catch (QiHttpClientException qiex)
{
Console.WriteLine("Error in Qi Service Client: " + qiex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Other error: " + ex.Message);
}
finally
{
// clean up all created entities so you can run this again
// all entities are reference counted, so you must delete the stream, then the type it uses
try
{
qiclient.DeleteStream("evtStream");
qiclient.DeleteBehavior("evtStreamStepLeading");
qiclient.DeleteType(evtType.Id);
}
catch (Exception)
{
}
}
}
static void Main(string[] args)
{
Console.WriteLine("Creating a .NET Qi Client...");
string server = ConfigurationManager.AppSettings["QiServerUrl"];
QiType evtType = null;
ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) => true;
QiHttpClientFactory<IQiServer> clientFactory = new QiHttpClientFactory<IQiServer>();
clientFactory.ProxyTimeout = new TimeSpan(0, 1, 0);
IQiServer qiclient = clientFactory.CreateChannel(new Uri(server));
IQiClientProxy proxy = (IQiClientProxy)qiclient;
proxy.OnBeforeInvoke((handler)=>{
string token = AcquireAuthToken();
if (proxy.Client.DefaultHeaders.Contains("Authorization"))
{
proxy.Client.DefaultHeaders.Remove("Authorization");
}
proxy.Client.DefaultHeaders.Add("Authorization", new AuthenticationHeaderValue("Bearer", token).ToString());
});
try
{
// Create a Qi Type -- the Qi Libraries let you do this via reflection
// First, create a type builder, then pass it the name of the class you are using for events.
// This greatly simplifies type creation
Console.WriteLine("Creating a Qi type for WaveData instances");
QiTypeBuilder typeBuilder = new QiTypeBuilder();
evtType = typeBuilder.Create<WaveData>();
evtType.Id = "WaveType";
QiType tp = qiclient.GetOrCreateType(evtType);
Console.WriteLine("Creating a stream in this tenant for simple event measurements");
QiStream sampleStream = new QiStream();
sampleStream.Name = "evtStream";
sampleStream.Id = "evtStream";
// set the TypeId property to the value of the Id property of the type you submitted
// All events submitted to this stream must be of this type
// Note there are Async versions of the client methods, too, using .NET TPL
sampleStream.TypeId = tp.Id;
sampleStream.Description = "This is a sample stream for storing WaveData type measurements";
QiStream strm = qiclient.GetOrCreateStream(sampleStream);
#region CRUD Operations
#region Create Events (Insert)
Console.WriteLine("Artificially generating 100 events and inserting them into the Qi Service");
// How to insert a single event
TimeSpan span = new TimeSpan(0, 1, 0);
WaveData evt = WaveData.Next(span, 2.0, 0);
qiclient.InsertValue("evtStream", evt);
List<WaveData> events = new List<WaveData>();
// how to insert an a collection of events
for (int i = 2; i < 200; i+=2)
{
WaveData newEvt = WaveData.Next(span, 2.0, i);
events.Add(newEvt);
Thread.Sleep(400);
}
qiclient.InsertValues<WaveData>("evtStream", events);
Thread.Sleep(2000);
#endregion
#region Retrieve events for a time range
// use the round trip formatting for time
Console.WriteLine("Retrieving the inserted events");
Console.WriteLine("==============================");
IEnumerable<WaveData> foundEvts = qiclient.GetWindowValues<WaveData>("evtStream", "0", "198");
DumpEvents(foundEvts);
#endregion
#region Update an event
Console.WriteLine();
Console.WriteLine("Updating values");
// take the first value inserted and update the value using a multiplier of 4, while retaining the order
evt = foundEvts.First<WaveData>();
evt = WaveData.Next(span, 4.0, evt.Order);
qiclient.UpdateValue<WaveData>("evtStream", evt);
// update the collection of events (same span, multiplier of 4, retain order)
List<WaveData> newEvents = new List<WaveData>();
foreach (WaveData evnt in events)
{
WaveData newEvt = WaveData.Next(span, 4.0, evnt.Order);
newEvents.Add(newEvt);
Thread.Sleep(500);
}
qiclient.UpdateValues<WaveData>("evtStream", newEvents);
Thread.Sleep(2000);
Console.WriteLine("Retrieving the updated values");
Console.WriteLine("=============================");
foundEvts = qiclient.GetWindowValues<WaveData>("evtStream", "0", "198");
DumpEvents(foundEvts);
// illustrate how stream behaviors modify retrieval
// First, pull three items back with GetRangeValues for range values between events.
// The default behavior is continuous, so ExactOrCalculated should bring back interpolated values
Console.WriteLine();
Console.WriteLine(@"Retrieving three events without a stream behavior");
foundEvts = qiclient.GetRangeValues<WaveData>("evtStream", "1", 0, 3, false, QiBoundaryType.ExactOrCalculated);
DumpEvents(foundEvts);
// now, create a stream behavior with Discrete and attach it to the existing stream
QiStreamBehavior behavior = new QiStreamBehavior();
behavior.Id = "evtStreamStepLeading";
behavior.Mode = QiStreamMode.StepwiseContinuousLeading;
behavior = qiclient.GetOrCreateBehavior(behavior);
// update the stream to include this behavior
sampleStream.BehaviorId = behavior.Id;
qiclient.UpdateStream("evtStream", sampleStream);
// repeat the retrieval
Console.WriteLine();
Console.WriteLine("Retrieving three events with a stepwise stream behavior in effect -- compare to last retrieval");
foundEvts = qiclient.GetRangeValues<WaveData>("evtStream", "1", 0, 3, false, QiBoundaryType.ExactOrCalculated);
DumpEvents(foundEvts);
#endregion
#region Delete events
Console.WriteLine();
Console.WriteLine("Deleting events");
qiclient.RemoveValue<int>("evtStream", 0);
qiclient.RemoveWindowValues<int>("evtStream", 2, 198);
Thread.Sleep(2000);
Console.WriteLine("Checking for events");
Console.WriteLine("===================");
foundEvts = qiclient.GetWindowValues<WaveData>("evtStream", "0", "198");
DumpEvents(foundEvts);
#endregion
#endregion
}
catch (QiHttpClientException qiex)
{
Console.WriteLine("Error in Qi Service Client: " + qiex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Other error: " + ex.Message);
}
finally
{
// clean up all created entities so you can run this again
// all entities are reference counted, so you must delete the stream, then the type it uses
try
{
qiclient.DeleteStream("evtStream");
qiclient.DeleteBehavior("evtStreamStepLeading");
qiclient.DeleteType(evtType.Id);
}
catch (Exception)
{
}
}
}
static void Main(string[] args)
{
Console.WriteLine("Creating a .NET Qi Client...");
string server = ConfigurationManager.AppSettings["QiServerUrl"];
// set up a client to the Qi Service -- it is essential that you set the QiTenant header
QiHttpClientFactory <IQiServer> clientFactory = new QiHttpClientFactory <IQiServer>();
clientFactory.ProxyTimeout = new TimeSpan(0, 1, 0);
clientFactory.OnCreated((p) => p.DefaultHeaders.Add("QiTenant", "sampletenant"));
IQiServer qiclient = clientFactory.CreateChannel(new Uri(server));
try
{
// TODO -- remove tenant creation when provisioning is accomplished
Console.WriteLine("Creating a tenant named sampletenant");
QiTenant tenant = new QiTenant("sampletenant");
// submit to PI Cloud Historian to create the tenant in storage
qiclient.GetOrCreateTenant(tenant);
// Create a Qi Type -- the Qi Libraries let you do this via reflection
// First, create a type builder, then pass it the name of the class you are using for events.
// This greatly simplifies type creation
QiTypeBuilder typeBuilder = new QiTypeBuilder();
QiType evtType = typeBuilder.Create <SimpleEvent>();
evtType.Name = "SimpleEvent";
evtType.Id = "SimpleEvent";
QiType tp = qiclient.GetOrCreateType(evtType);
Console.WriteLine("Creating a stream in this tenant for simple event measurements");
QiStream sampleStream = new QiStream();
sampleStream.Name = "evtStream";
sampleStream.Id = "evtStream";
// set the TypeId property to the value of the Id property of the type you submitted
// All events submitted to this stream must be of this type
// Note there are Async versions of the client methods, too, using .NET TPL
sampleStream.TypeId = "SimpleEvent";
sampleStream.Description = "This is a sample stream for storing SimpleEvent type measurements";
QiStream strm = qiclient.GetOrCreateStream(sampleStream);
#region CRUD Operations
#region Create Events (Insert)
Console.WriteLine("Artificially generating 100 events at one second intervals and inserting them into the Qi Service");
Random rnd = new Random();
// How to insert a single event
SimpleEvent evt = new SimpleEvent(rnd.NextDouble() * 100, "deg C");
// for our contrived purposes, let's manually set the timestamp to 100 seconds in the past
DateTime start = DateTime.UtcNow.AddSeconds(-100.0);
evt.Timestamp = start;
qiclient.InsertValue("evtStream", evt);
List <SimpleEvent> events = new List <SimpleEvent>();
// how to insert an a collection of events
for (int i = 1; i < 100; i++)
{
evt = new SimpleEvent(rnd.NextDouble() * 100, "deg C");
evt.Timestamp = start.AddSeconds((double)i);
events.Add(evt);
}
qiclient.InsertValues <SimpleEvent>("evtStream", events);
Thread.Sleep(2000);
#endregion
#region Retrieve events for a time range
// use the round trip formatting for time
Console.WriteLine("Retrieving the inserted events");
Console.WriteLine("==============================");
IEnumerable <SimpleEvent> foundEvts = qiclient.GetWindowValues <SimpleEvent>("evtStream", start.ToString("o"), DateTime.UtcNow.ToString("o"));
DumpEvents(foundEvts);
#endregion
#region Update an event
Console.WriteLine();
Console.WriteLine("Updating values");
// take the first value inserted and update the value and UOM
evt = foundEvts.First <SimpleEvent>();
evt.Units = "deg F";
evt.Value = 212.0;
qiclient.UpdateValue <SimpleEvent>("evtStream", evt);
// update the collection of events (convert to deg F)
foreach (SimpleEvent evnt in events)
{
evnt.Units = "deg F";
evnt.Value = evnt.Value * 9 / 5 + 32.0;
}
qiclient.UpdateValues <SimpleEvent>("evtStream", events);
Thread.Sleep(2000);
Console.WriteLine("Retrieving the updated values");
Console.WriteLine("=============================");
foundEvts = qiclient.GetWindowValues <SimpleEvent>("evtStream", start.ToString("o"), DateTime.UtcNow.ToString("o"));
DumpEvents(foundEvts);
#endregion
#region Delete events
Console.WriteLine();
Console.WriteLine("Deleting events");
qiclient.RemoveValue <DateTime>("evtStream", evt.Timestamp);
qiclient.RemoveWindowValues("evtStream", foundEvts.First <SimpleEvent>().Timestamp.ToString("o"), foundEvts.Last <SimpleEvent>().Timestamp.ToString("o"));
Thread.Sleep(2000);
Console.WriteLine("Checking for events");
Console.WriteLine("===================");
foundEvts = qiclient.GetWindowValues <SimpleEvent>("evtStream", start.ToString("o"), DateTime.UtcNow.ToString("o"));
DumpEvents(foundEvts);
#endregion
#endregion
}
catch (QiHttpClientException qiex)
{
Console.WriteLine("Error in Qi Service Client: " + qiex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Other error: " + ex.Message);
}
finally
{
// clean up all created entities so you can run this again
// all entities are reference counted, so you must delete the stream, then the type it uses
try
{
qiclient.DeleteStream("evtStream");
}
catch (Exception exStrm)
{
Console.WriteLine("Error deleting stream, type is left: " + exStrm.Message);
}
try
{
qiclient.DeleteType("SimpleEvent");
}
catch (Exception exTyp)
{
Console.WriteLine("Error deleting stream: " + exTyp.Message);
}
try
{
qiclient.DeleteTenant("sampletenant");
}
catch (Exception exTnt)
{
Console.WriteLine("Error deleting tenant: " + exTnt.Message);
}
Console.WriteLine("Press ENTER to finish");
Console.ReadLine();
}
}
static void Main(string[] args)
{
Console.WriteLine("Creating a .NET Qi Client...");
string server = ConfigurationManager.AppSettings["QiServerUrl"];
QiType evtType = null;
// acquire an authentication token from Azure AD
string token = AcquireAuthToken();
// set up a client to the Qi Service -- it is essential that you set the QiTenant header
QiHttpClientFactory <IQiServer> clientFactory = new QiHttpClientFactory <IQiServer>();
clientFactory.ProxyTimeout = new TimeSpan(0, 1, 0);
clientFactory.OnCreated((p) => p.DefaultHeaders.Add("Authorization", new AuthenticationHeaderValue("Bearer", token).ToString()));
IQiServer qiclient = clientFactory.CreateChannel(new Uri(server));
try
{
// Create a Qi Type -- the Qi Libraries let you do this via reflection
// First, create a type builder, then pass it the name of the class you are using for events.
// This greatly simplifies type creation
Console.WriteLine("Creating a Qi type for WaveData instances");
QiTypeBuilder typeBuilder = new QiTypeBuilder();
evtType = typeBuilder.Create <WaveData>();
evtType.Id = "WaveType";
QiType tp = qiclient.GetOrCreateType(evtType);
Console.WriteLine("Creating a stream in this tenant for simple event measurements");
QiStream sampleStream = new QiStream();
sampleStream.Name = "evtStream";
sampleStream.Id = "evtStream";
// set the TypeId property to the value of the Id property of the type you submitted
// All events submitted to this stream must be of this type
// Note there are Async versions of the client methods, too, using .NET TPL
sampleStream.TypeId = tp.Id;
sampleStream.Description = "This is a sample stream for storing WaveData type measurements";
QiStream strm = qiclient.GetOrCreateStream(sampleStream);
#region CRUD Operations
#region Create Events (Insert)
Console.WriteLine("Artificially generating 100 events and inserting them into the Qi Service");
// How to insert a single event
TimeSpan span = new TimeSpan(0, 1, 0);
WaveData evt = WaveData.Next(span, 2.0, 0);
qiclient.InsertValue("evtStream", evt);
List <WaveData> events = new List <WaveData>();
// how to insert an a collection of events
for (int i = 2; i < 200; i += 2)
{
WaveData newEvt = WaveData.Next(span, 2.0, i);
events.Add(newEvt);
Thread.Sleep(400);
}
qiclient.InsertValues <WaveData>("evtStream", events);
Thread.Sleep(2000);
#endregion
#region Retrieve events for a time range
// use the round trip formatting for time
Console.WriteLine("Retrieving the inserted events");
Console.WriteLine("==============================");
IEnumerable <WaveData> foundEvts = qiclient.GetWindowValues <WaveData>("evtStream", "0", "198");
DumpEvents(foundEvts);
#endregion
#region Update an event
Console.WriteLine();
Console.WriteLine("Updating values");
// take the first value inserted and update the value using a multiplier of 4, while retaining the order
evt = foundEvts.First <WaveData>();
evt = WaveData.Next(span, 4.0, evt.Order);
qiclient.UpdateValue <WaveData>("evtStream", evt);
// update the collection of events (same span, multiplier of 4, retain order)
List <WaveData> newEvents = new List <WaveData>();
foreach (WaveData evnt in events)
{
WaveData newEvt = WaveData.Next(span, 4.0, evnt.Order);
newEvents.Add(newEvt);
Thread.Sleep(500);
}
qiclient.UpdateValues <WaveData>("evtStream", newEvents);
Thread.Sleep(2000);
Console.WriteLine("Retrieving the updated values");
Console.WriteLine("=============================");
foundEvts = qiclient.GetWindowValues <WaveData>("evtStream", "0", "198");
DumpEvents(foundEvts);
// illustrate how stream behaviors modify retrieval
// First, pull three items back with GetRangeValues for range values between events.
// The default behavior is continuous, so ExactOrCalculated should bring back interpolated values
Console.WriteLine();
Console.WriteLine(@"Retrieving three events without a stream behavior");
foundEvts = qiclient.GetRangeValues <WaveData>("evtStream", "1", 0, 3, false, QiBoundaryType.ExactOrCalculated);
DumpEvents(foundEvts);
// now, create a stream behavior with Discrete and attach it to the existing stream
QiStreamBehavior behavior = new QiStreamBehavior();
behavior.Id = "evtStreamStepLeading";
behavior.Mode = QiStreamMode.StepwiseContinuousLeading;
behavior = qiclient.GetOrCreateBehavior(behavior);
// update the stream to include this behavior
sampleStream.BehaviorId = behavior.Id;
qiclient.UpdateStream("evtStream", sampleStream);
// repeat the retrieval
Console.WriteLine();
Console.WriteLine("Retrieving three events with a stepwise stream behavior in effect -- compare to last retrieval");
foundEvts = qiclient.GetRangeValues <WaveData>("evtStream", "1", 0, 3, false, QiBoundaryType.ExactOrCalculated);
DumpEvents(foundEvts);
#endregion
#region Delete events
Console.WriteLine();
Console.WriteLine("Deleting events");
qiclient.RemoveValue <int>("evtStream", 0);
qiclient.RemoveWindowValues <int>("evtStream", 2, 198);
Thread.Sleep(2000);
Console.WriteLine("Checking for events");
Console.WriteLine("===================");
foundEvts = qiclient.GetWindowValues <WaveData>("evtStream", "0", "198");
DumpEvents(foundEvts);
#endregion
#endregion
}
catch (QiHttpClientException qiex)
{
Console.WriteLine("Error in Qi Service Client: " + qiex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Other error: " + ex.Message);
}
finally
{
// clean up all created entities so you can run this again
// all entities are reference counted, so you must delete the stream, then the type it uses
try
{
qiclient.DeleteStream("evtStream");
qiclient.DeleteBehavior("evtStreamStepLeading");
qiclient.DeleteType(evtType.Id);
}
catch (Exception)
{
}
}
}
