DDS Everywhere
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The document introduces the Opensplice DDS Everywhere platform, which aims to facilitate interoperable communication across various environments, from embedded to cloud applications. It highlights key features of the Opensplice DDS, including performance, integration, and new functionalities in version 6.3 such as enhanced APIs and improved security protocols. Additionally, the platform supports a variety of devices and systems, ensuring a broad reach for distributed data solutions.
![struct ShapeType {
ISO C++ DDS API
string color;
long x;
long y;
long shapesize;
};
#pragma keylist ShapeType color
int main(int argc, char* argv[]) {
try {
Copyright
2011,
PrismTech
–
All
Rights
Reserved.
☐ Simple, Compact and ! !
// Create DomainParticipant
DomainParticipant dp = DomainParticipant(0);
Elegant ! !
// Create Topic
Topic<ShapeType> topic(dp, "Circle");
// Create Publisher
! ! Publisher pub(dp);
☐ Type-safe // Create DataWriter QoS
DataWriterQos dwqos =
pub.default_datawriter_qos()
<< Durability::Transient()
☐ Orthogonal << History::KeepLast(10);
OpenSplice DDS
// Create DataWriter
! ! DataWriter<ShapeType> dw(pub, topic, dwqos);
☐ Efficient // Write
ShapeType s = {"RED", 50, 70, 90};
dw << s;
// - or -
☐ QoS DSL dw.write(s); ! !
! } catch (const dds::core::Exception& e) {
! ! std::cout << e.what() << std::endl;
! }
! return 0;
}](https://image.slidesharecdn.com/2013-03-130327080241-phpapp02/85/DDS-Everywhere-13-320.jpg)
![Example: DataWriter
int main(int argc, char* argv[]) {
try {
! ! DomainParticipant dp(0);
Copyright
2011,
PrismTech
–
All
Rights
Reserved.
! ! Topic<ShapeType> topic(dp, "Circle");
! ! Publisher pub(dp);
! ! DataWriter<ShapeType> dw(pub, topic);
! ! uint32_t pos = 0;
! ! const uint32_t N = 300;
! ! for (int i = 0; i < N; ++i) {
! ! ! ShapeType bc = {"RED", i, i, 60};
OpenSplice DDS
! ! ! ShapeType rc = {"BLUE", N-i, N-i, 60};
! ! ! dw << rc;
! ! ! usleep(10000);
! ! }
! } catch (const dds::core::Exception& e) {
! ! std::cout << e.what() << std::endl;
! }
! return 0;
}](https://image.slidesharecdn.com/2013-03-130327080241-phpapp02/85/DDS-Everywhere-15-320.jpg)
![Example: DataReader
int main(int argc, char* argv[]) {
try {
DomainParticipant dp(0);
Copyright
2011,
PrismTech
–
All
Rights
Reserved.
Topic<ShapeType> topic(dp, "Circle");
Subscriber sub(dp);
DataReader<ShapeType> dr(sub, topic);
uint32_t pos = 0;
const uint32_t N = 300;
uint32_t max_size = 10;
const uint32_t sleepTime = 500000;
OpenSplice DDS
while (true) {
LoanedSamples<ShapeType> samples =
dr.read();
std::cout << "-----------" << std::endl;
for_each(samples.begin(), samples.end(),
printShapeSample);
usleep(sleepTime);
}
} catch (const dds::core::Exception& e) {
std::cout << e.what() << std::endl;
}
return 0;
}](https://image.slidesharecdn.com/2013-03-130327080241-phpapp02/85/DDS-Everywhere-16-320.jpg)
![Java Shapes -- Reader
package
org.omg.demo.dds.shapes;
import
...;
Copyright
2011,
PrismTech
–
All
Rights
Reserved.
/**
*
This
class
provides
a
simple
example
of
a
DDS
data
reader
using
the
new
Java
API.
*/
public
class
ShapesReader
{
public
static
void
main(String
args[])
throws
Exception
{
if
(args.length
<
1)
{
System.out.println("USAGE:ntShapesWriter
<topic>");
System.out.println("nttopic
=
[Circle,
Square,
Triangle]");
OpenSplice DDS
System.exit(1);
}
final
String
shape
=
args[1].substring(0,1).toUpperCase()
+
args[1].substring(1,args[1].length()).toLowerCase();
final
ServiceEnvironment
env
=
ServiceEnvironment.createInstance(ShapesWriter.class.getClassLoader());](https://image.slidesharecdn.com/2013-03-130327080241-phpapp02/85/DDS-Everywhere-24-320.jpg)
![Java Shapes -- Writer
public
class
ShapesWriter
{
public
static
void
main(String
args[])
throws
Exception
{
if
(args.length
<
4)
{
Copyright
2011,
PrismTech
–
All
Rights
Reserved.
System.out.println("USAGE:ntShapesWriter
<topic>
<circle>
<samples>
<period
ms>");
System.out.println("nttopic
=
[Circle,
Square,
Triangle]");
System.out.println("tcolor
=
[Red,
Blue,
Green,
Magenta,
Cyan]");
System.exit(1);
}
final
String
shape
=
args[1].substring(0,1).toUpperCase()
+
args[1].substring(1,args[1].length()).toLowerCase();
final
String
color
=
args[1].toUpperCase();
OpenSplice DDS
final
int
samples
=
Integer.parseInt(args[2]);
final
int
period
=
Integer.parseInt(args[3]);
final
int
bound
=
100;
final
ServiceEnvironment
env
=
ServiceEnvironment.createInstance(ShapesWriter.class.getClassLoader());](https://image.slidesharecdn.com/2013-03-130327080241-phpapp02/85/DDS-Everywhere-26-320.jpg)
DDS Everywhere
- 1. OpenSplice DDS Everywhere OpenSplice DDS Angelo CORSARO, Ph.D. Chief Technology Officer OMG DDS Sig Co-Chair PrismTech angelo.corsaro@prismtech.com
- 2. DDS Everywhere Platform A DDS-based, interoperable Copyright 2011, PrismTech – All Rights Reserved. ☐ product family addressing OpenSplice OpenSplice systems needs from Embedded Cloud Community and Mobile to Enterprise and Cloud OpenSplice OpenSplice DDS ☐ An Open Source core providing free access to the OpenSplice OpenSplice OpenSplice Ecosystem, security of supply and Enterprise Embedded a vibrant, innovative community
- 3. DDS Everywhere Platform Consumer Platforms ☐ Browser / HTML5 Copyright 2011, PrismTech – All Rights Reserved. ☐ iOS OpenSplice OpenSplice ☐ Android ☐ Cloud Cloud Community ☐ No-SQL ☐ Mobile/WiFi IP Transp. OpenSplice OpenSplice DDS ☐ RTOS (VxWorks, QNX, ☐ OS (Linux, Windows, etc) etc.) ☐ Cloud ☐ FPGA OpenSplice OpenSplice ☐ DBMS ☐ BSP / No-OS ☐ No-SQL Enterprise Embedded ☐ IP + Exotic ☐ InfiniBand + IP Transports Transports Industrial IT Platforms Platforms
- 4. DDS Everywhere Platform ☐ Mobility ☐ Elasticity ☐ Cloud Copyright 2011, PrismTech – All Rights Reserved. ☐ Integration OpenSplice OpenSplice Cloud Community OpenSplice OpenSplice DDS ☐ Fault-Tolerance OpenSplice OpenSplice ☐ Throughput Enterprise Embedded ☐ Scalability ☐ Latency ☐ Determinism ☐ Latency ☐ Security ☐ Footprint ☐ Integration
- 6. Key Highlights ☐ The best middleware OpenSplice OpenSplice Copyright 2011, PrismTech – All Rights Reserved. Cloud Community infrastructure to Simplify Distributed System Development OpenSplice ☐ Reduce complexity of OpenSplice DDS building, testing, integrating, OpenSplice OpenSplice OpenSplice and deploying high- Tools Enterprise Embedded performance, scalable, and fault-tolerant distributed systems OpenSplice DDS
- 7. OpenSplice DDS New in v6.3
- 8. OpenSplice DDSI2E Enhanced version of the Interoperable wire Copyright 2011, PrismTech – All Rights Reserved. protocol DDSI v2.1 Discovery ☐ Standardized discovery (locators) ☐ Dynamic unicast/multicast selection ☐ Optional static discovery OpenSplice DDS Real-Time ☐ independently scheduled priority-lanes ☐ Support for Logical and Physical Partitioning ☐ Traffic-Shaping Security ☐ Encrypted network-Partitions
- 9. Record and Replay ☐ Dynamic recording of any topic- Copyright 2011, PrismTech – All Rights Reserved. data in a DDS system ☐ Selective replay with variable RnR RnR RnR speed Service Service(s) Manager ☐ Distributed control by topic-based Record/Replay command Record/Replay command Any topic API (‘command’ & ‘status’ topics) OpenSplice DDS & status topics & status topics OpenSplice DDS ☐ Seamless integration with OpenSplice Tester (topic-based API) ☐ Dedicated RnR-Manager graphical GUI for scenario-definition and data import/analysis
- 10. OpenSplice DDS Record and Replay Tool Copyright 2011, PrismTech – All Rights Reserved.
- 11. New DDS APIs Copyright 2011, PrismTech – All Rights Reserved. ☐ The original DDS API introduces some unnecessary accidental complexity OpenSplice DDS ☐ We’ve been working hard to standardize new C++/Java API for DDS that makes using it as simple as possible
- 12. Statistics Simple DataWriter with default QoS DDS v1.2 C++ API ISO C++ API Copyright 2011, PrismTech – All Rights Reserved. 15 ☐ The new API reduces the number of lines of code 11 from 3x to 5x when compared to the original OpenSplice DDS 8 DDS API! ☐ Less code means less bugs 4 0 SLOC
- 13. struct ShapeType { ISO C++ DDS API string color; long x; long y; long shapesize; }; #pragma keylist ShapeType color int main(int argc, char* argv[]) { try { Copyright 2011, PrismTech – All Rights Reserved. ☐ Simple, Compact and ! ! // Create DomainParticipant DomainParticipant dp = DomainParticipant(0); Elegant ! ! // Create Topic Topic<ShapeType> topic(dp, "Circle"); // Create Publisher ! ! Publisher pub(dp); ☐ Type-safe // Create DataWriter QoS DataWriterQos dwqos = pub.default_datawriter_qos() << Durability::Transient() ☐ Orthogonal << History::KeepLast(10); OpenSplice DDS // Create DataWriter ! ! DataWriter<ShapeType> dw(pub, topic, dwqos); ☐ Efficient // Write ShapeType s = {"RED", 50, 70, 90}; dw << s; // - or - ☐ QoS DSL dw.write(s); ! ! ! } catch (const dds::core::Exception& e) { ! ! std::cout << e.what() << std::endl; ! } ! return 0; }
- 14. ISO C++ DDS API Copyright 2011, PrismTech – All Rights Reserved. ☐ Unified and composable data selection API std::vector<std::string> p; p.push_back("100"); p.push_back("200"); OpenSplice DDS Query q("x < %0 AND y < %1", p); auto data = reader ! .select() .instance(handle) // -- Select Instance ! ! .state(status::DataState::new_data()) // -- Filter on State ! ! .content(q) // -- Filter on Content .read(); // -- Execute the selection and read the data
- 15. Example: DataWriter int main(int argc, char* argv[]) { try { ! ! DomainParticipant dp(0); Copyright 2011, PrismTech – All Rights Reserved. ! ! Topic<ShapeType> topic(dp, "Circle"); ! ! Publisher pub(dp); ! ! DataWriter<ShapeType> dw(pub, topic); ! ! uint32_t pos = 0; ! ! const uint32_t N = 300; ! ! for (int i = 0; i < N; ++i) { ! ! ! ShapeType bc = {"RED", i, i, 60}; OpenSplice DDS ! ! ! ShapeType rc = {"BLUE", N-i, N-i, 60}; ! ! ! dw << rc; ! ! ! usleep(10000); ! ! } ! } catch (const dds::core::Exception& e) { ! ! std::cout << e.what() << std::endl; ! } ! return 0; }
- 16. Example: DataReader int main(int argc, char* argv[]) { try { DomainParticipant dp(0); Copyright 2011, PrismTech – All Rights Reserved. Topic<ShapeType> topic(dp, "Circle"); Subscriber sub(dp); DataReader<ShapeType> dr(sub, topic); uint32_t pos = 0; const uint32_t N = 300; uint32_t max_size = 10; const uint32_t sleepTime = 500000; OpenSplice DDS while (true) { LoanedSamples<ShapeType> samples = dr.read(); std::cout << "-----------" << std::endl; for_each(samples.begin(), samples.end(), printShapeSample); usleep(sleepTime); } } catch (const dds::core::Exception& e) { std::cout << e.what() << std::endl; } return 0; }
- 17. Full C++ Shapes Application see: Copyright 2011, PrismTech – All Rights Reserved. github.com/kydos/dds-psm-cxx/tree/master/examples/ishapes-driver OpenSplice DDS
- 19. Key Highlights OpenSplice Gateway Copyright 2011, PrismTech – All Rights Reserved. ☐ Brings DDS on mobile devices powered by OpenSplice OpenSplice OpenSplice Android/iOS Mobile Cloud Community ☐ Enables DDS-based OpenSplice OpenSplice DDS Cloud Messaging for higher scalability, throughout and minimal OpenSplice OpenSplice cost per message Enterprise Embedded
- 20. OpenSplice Mobile Copyright 2011, PrismTech – All Rights Reserved. ☐ Pure Java version of OpenSplice targeting the JVM DCPS Java 5 / Scala API ☐ DDSI Protocol Stack optimized DDSI for mobility and Android OS (Optimized for Mobility) OpenSplice DDS ☐ Only DDS on the market designed and Engineered for Android and the JVM
- 21. OpenSplice DDS OpenSplice Mobile Copyright 2011, PrismTech – All Rights Reserved.
- 22. OpenSplice DDS Demo Copyright 2011, PrismTech – All Rights Reserved.
- 23. Java 5 PSM Copyright 2011, PrismTech – All Rights Reserved. ☐ Idiomatic and ergonomic DDS API for Java ☐ Guaranteed code portability through clean separation of standard API (in an OMG provided JAR) and vendor implementation OpenSplice DDS ☐ QoS and Selector DSL simplify programming and make code more readable ☐ QoS Provider allows to “externalize” the QoS configuration
- 24. Java Shapes -- Reader package org.omg.demo.dds.shapes; import ...; Copyright 2011, PrismTech – All Rights Reserved. /** * This class provides a simple example of a DDS data reader using the new Java API. */ public class ShapesReader { public static void main(String args[]) throws Exception { if (args.length < 1) { System.out.println("USAGE:ntShapesWriter <topic>"); System.out.println("nttopic = [Circle, Square, Triangle]"); OpenSplice DDS System.exit(1); } final String shape = args[1].substring(0,1).toUpperCase() + args[1].substring(1,args[1].length()).toLowerCase(); final ServiceEnvironment env = ServiceEnvironment.createInstance(ShapesWriter.class.getClassLoader());
- 25. Java Shapes -- Reader DomainParticipantFactory factory = DomainParticipantFactory.getInstance(env); DomainParticipant dp = factory.createParticipant(); Copyright 2011, PrismTech – All Rights Reserved. final PolicyFactory pf = env.getSPI().getPolicyFactory(); TopicQos tqos = dp.getDefaultTopicQos(); tqos.withPolicies(pf.Durability().withTransient(), pf.Reliability().withReliable()); Topic<ShapeType> topic = dp.createTopic(shape, ShapeType.class); Subscriber sub = dp.createSubscriber(); OpenSplice DDS DataReaderQos drqos = sub.getDefaultDataReaderQos().withPolicies( pf.Reliability().withBestEffort(), pf.Durability().withTransient() ); DataReader<ShapeType> dr = sub.createDataReader(topic, drqos, new ShapeTypeListener(), Status.allStatuses(env)); Thread.currentThread().join(); } }
- 26. Java Shapes -- Writer public class ShapesWriter { public static void main(String args[]) throws Exception { if (args.length < 4) { Copyright 2011, PrismTech – All Rights Reserved. System.out.println("USAGE:ntShapesWriter <topic> <circle> <samples> <period ms>"); System.out.println("nttopic = [Circle, Square, Triangle]"); System.out.println("tcolor = [Red, Blue, Green, Magenta, Cyan]"); System.exit(1); } final String shape = args[1].substring(0,1).toUpperCase() + args[1].substring(1,args[1].length()).toLowerCase(); final String color = args[1].toUpperCase(); OpenSplice DDS final int samples = Integer.parseInt(args[2]); final int period = Integer.parseInt(args[3]); final int bound = 100; final ServiceEnvironment env = ServiceEnvironment.createInstance(ShapesWriter.class.getClassLoader());
- 27. Java Shapes -- Writer final PolicyFactory pf = env.getSPI().getPolicyFactory(); DomainParticipantFactory factory = DomainParticipantFactory.getInstance(env); DomainParticipant dp = factory.createParticipant(); Copyright 2011, PrismTech – All Rights Reserved. Topic<ShapeType> topic = dp.createTopic(shape, ShapeType.class); Publisher pub =dp.createPublisher(); DataWriterQos dwqos = pub.getDefaultDataWriterQos().withPolicies( pf.Reliability().withBestEffort(), pf.Durability().withTransient()); DataWriter<ShapeType> dw = pub.createDataWriter(topic); OpenSplice DDS final ShapeType sample = new ShapeType(color, 0, 0, 0); for (int i = 0; i < samples; ++i) { sample .setX(((int)Math.random()%bound)) .setY(((int)Math.random()%bound)) .setShapesize(((int)Math.random()%bound)); dw.write(sample); Thread.sleep(period); } } }
- 28. Performance Copyright 2011, PrismTech – All Rights Reserved. ☐ OpenSplice Mobile v1.0 beta features already very good performance ☐ Latency is low and pretty OpenSplice DDS stable ~3usec of difference from 32 to 1024 bytes
- 29. OpenSplice Gateway JMS Integration technology providing Copyright 2011, PrismTech – All Rights Reserved. ☐ XM connectivity from DDS to over 80 ST PP RE OpenSplice technologies, including WebSockets Gateway P and REST Cu AMQ sto m ☐ Java-based and easily deployable OpenSplice DDS DDSI-RTPS on the cloud Supported Connectors Include: ☐ Key building block for OpenSplice - JMS - HTTP - REST - AMQP Based Cloud Messaging Solutions - CometD - XMPP - CFX - Hibernate -WebSockets -HBase - TCP, UDP Sockets - Custom
- 30. WebSocket Integration 1 // Define endpoints 2 val inEndpoint = Copyright 2011, PrismTech – All Rights Reserved. 3 "ddsi:"+ inTopic +":"+ inDomain +"/" + shapeType 4 val outEndpoint = 5 "websocket://"+inTopic.toLowerCase + "?sendToAll=true" 6 7 // Define a Route using the Scala DSL 8 val shapesRoute = new RouteBuilder { 9 override def configure() = OpenSplice DDS 10 from(inEndpoint) unmarshal("cdr") marshal() json() to(outEndpoint) To JSON 11 } Topic “Circle” ☐ This example requires Camel 2.10 DDS Domain 0
- 31. TCP/UDP Tunneling DDS Domain 0 ☐ Integrate different DDS Domains via TCP (or UDP) Topic “Circle” tunnel ☐ Per Topic bridging ☐ Unidirectional or bidirectional GW 1 ☐ Possibly adding SSL/TLS TCP OpenSplice DDS GW 2 1 // on GW1: 2 from("ddsi:Circle:0/ShapeType") 3 to("netty:tcp://localhost:6789?sync=false"); Topic “Circle” 1 // on GW2: 2 from("netty:tcp://localhost:6789?sync=false") 3 to("ddsi:Circle:0/ShapeType"); DDS Domain 0
- 33. Key Highlights OpenSplice OpenSplice Copyright 2011, PrismTech – All Rights Reserved. Cloud Community ☐ The OpenSplice Embedded Product family brings DDS OpenSplice connectivity to devices and OpenSplice OpenSplice DDS resource constrained real- OpenSplice OpenSplice Integrator time embedded systems Enterprise Embedded OpenSplice Lite OpenSplice RTE
- 34. FPGA Integrator GIOP/DDSI DDS Copyright 2011, PrismTech – All Rights Reserved. Data Bridge Reader FPGA Data Writer GIOP Data Reader Data TopicD ICO GIOP DDSI Writer TopicA Data TopicB Reader Data Writer TopicC ... Data Data Writer Reader OpenSplice DDS DDS Global Data Space ☐ ‘Out-of-the-box’ solution for integrating FPGA’s withDDS based systems ☐ Bridges the device-data (via GIOP) to the DDS-based system using a software ‘gateway’ providing full DDS QoS support to maintain & distribute the device-data ☐ Bridge-technology is be based either: ☐ OpenSplice Gateway (if a Java platform is available) or ☐ A small OpenSplice bridge application or pluggable-service
- 35. OpenSplice Lite ISO C++ API ☐ Bring software-based DDS Copyright 2011, PrismTech – All Rights Reserved. implementation to a range of resource constrained devices Native C API ☐ Allow for variability on functionalities, transport and support of underlying OS/ DDSI / DDSI-E BSP OS Transport OpenSplice DDS ☐ Provides very low footprint and very high Abstraction Abstraction performance ☐ Footprint as low as 100/200 KB RTOS DSP Latency as low as 35-45 usec (on Gigabit uController ☐ GPP network)
- 36. OpenSplice RTE ☐ Bring the full power of DDS to real- Copyright 2011, PrismTech – All Rights Reserved. time embedded systems DCPS API (C/C++/RT-Java) ☐ Provides low footprint, superlative DDSI-E / RT-NET scalability and and high performance OS OpenSplice DDS Abstraction ☐ Footprint 2MB RTOS ☐ Latency 75/80 usec (on Gigabit network) GPP
- 37. Putting it all Together OpenSplice DDS
- 38. DDS Everywhere! OpenSplice Mobile OpenSplice Mobile Embedded JVM OpenSplice DDS Enterprise OpenSplice DDS OpenSplice Enterprise OS MQTT, AMQP, Gateway JMS, REST, .... OpenSplice OpenSplice RTE Lite RTOS Embedded OS
- 39. OpenSplice DDS Final Remarks
- 40. Concluding Remarks Copyright 2011, PrismTech – All Rights Reserved. ☐ With the DDS Everywhere platform we are making DDS available on any device ☐ That means that: ☐ You can get DDS data from your system to anywhere OpenSplice DDS ☐ You can exploit the power of DDS across devices and technologies ☐ You have a single technology end-to-end that provides optimal efficiency, scalability, performance and more importantly data-centricity!
- 41. OpenSplice DDS
- 42. :: Connect with Us :: ¥opensplice.com ¥forums.opensplice.org ¥@acorsaro ¥opensplice.org ¥opensplicedds@prismtech.com ¥@prismtech OpenSplice DDS ¥ crc@prismtech.com ¥sales@prismtech.com ¥youtube.com/opensplicetube ¥slideshare.net/angelo.corsaro