Web Enabled DDS - London Connext DDS Conference
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This document discusses Web-Enabled DDS, which allows real-time data from DDS applications to be accessed from web-based applications. It provides a gateway that connects DDS applications to web clients using standard HTTP protocols. This allows for scenarios like mobile data access, web UIs/dashboards, and access across firewalls. It presents the WebDDS object model and RESTful API for accessing DDS entities like topics, publishers, and data writers from web clients.
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In the past few years we have experienced an amazing proliferation of mobile and embedded platforms. Contemporary developers are increasingly being faced with the challenge of writing applications that can run on desktop, mobile (e.g. Android and iOS), and on low-cost embedded platforms (e.g. Raspberry-Pi and Beaglebone). This is causing a rejuvenated interest in the Java platform as a means to achieve the holy grail of write-once and run-everywhere. With the availability of Java environments supporting almost any kind of device in several different form factors, the missing element of the picture is an effective way of enabling communication between them.
Vortex Café is a pure Java implementation of the OMG Data Distribution Service (DDS) that enables seamless, efficient and timely data sharing across multi-core machines, mobile and embedded devices.
This presentation will (1) introduce the main abstractions provided by Vortex Café, (2) provide an overview of its architecture and explain how it exploits Staged Event Driven Architectures to optimize its runtime behavior depending on the target hardware, (3) provide an overview of the typical performance delivered by Vortex Café, and (4) get you started developing distributed Java and Scala applications with Vortex Café.
Mapping the RESTful Programming Model to the DDS Data-Centric Model
Presentation to the OMG Real-Time Workshop in May, 2010 on a bridge between OMG's Data Distribution Service (DDS) technology and REST web services.
DDS + Android = OpenSplice Mobile
Mobile platforms such as Android/iOS based smart phones, phablets , and tablets are swiftly establishing as the target client platform for a large class of consumer as well as enterprise and mission/business critical applications. OpenSplice Mobile is a pure Java DDS implementation optimized for Android and the JVM that provides effective and efficient DDS connectivity to Android based devices – as well as any JVM enabled device.
OpenSplice Mobile is the first peer-to-peer middleware infrastructure designed for Android that allow seamless interoperability with existing DDS systems and provides a powerful infrastructure for next generation peer-to-peer Android applications.
This presentation introduces OpenSplice Mobile, provides and overview of its architecture and performances and gets you started writing DDS applications for Android!
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This material was presented at the Research Computing and Data Management Workshop, hosted by Rensselaer Polytechnic Institute on February 27-28, 2024.
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Running your Spring Apps in the Cloud Javaone 2014
Walk through what it took to bring a Srping App initially built for 2nd platform (infrastructure dependent) deployment, and make it deployable to 3rd platform (Cloud Foundry).
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Dojo is a JavaScript framework that helps build dynamic web applications. It provides tools and techniques to handle data, user interfaces, internationalization, and accessibility. Dojo includes data stores to retrieve and manage data, widgets to display data, and templating to generate interface code on the client-side. It also offers utilities to optimize application loading, such as file merging and minification.
OpenDDR
OpenDDR is the ultimate open solution to the device fragmentation issues. Because of the wide
diversity of devices available on the market, the developers dealing with web content optimization
need to know hardware and software specs of each device. To face this situation the most effective
solution is using a Device Description Repository, a database storing a huge amount of information
concerning mobile phones, tablets, Interactive TVs, set top boxes and any device with a Web browser.
Reaching out from ADF Mobile (ODTUG KScope 2014)
The document discusses various features of Oracle ADF Mobile including:
1) Using remote URLs to embed existing web content in mobile apps.
2) Displaying remote files by downloading them locally and opening in native viewers.
3) Integrating REST services like Google Places to embed external data.
4) Embedding Twitter timelines using local HTML and Twitter widgets.
5) Enabling inter-app communication through URL schemes.
6) Implementing push notifications which require a complex setup but allow powerful delivery of messages.
Vortex Cloud Beyond Cloud Messaging
Cloud Messaging is a key building block at the foundation of any Internet Scale native and web application. PrismTech’s Vortex Cloud provides an innovative solution to address the problems of efficiently and securely distributing data and raising events on an Internet Scale.
This presentation will (1) position Vortex Cloud with respect to some of the mainstream Cloud Messaging implementations, such as those found as part of the Microsoft Azure Platform, Amazon EC2, and the Google Cloud Platform (2) explain the unique features provided by Vortex Cloud, and (3) teach you how to get started writing native or web applications that leverage Vortex Cloud.
Fog Computing with VORTEX
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This presentation introduces the key concepts behind Fog Computing, compare and contrast it with Cloud Computing and explain how the VORTEX platform enables Fog computing architectures.
Data in a Cloud - Introduction to Qt Cloud Services
Qt Cloud Services makes it easy to develop connected applications. From small-scale development projects to large-scale enterprise programs. Qt Cloud Services has all you need!
DDS tutorial with connector
This document provides an overview and tutorial on using Connector, which is a simple API for publishing and subscribing to data using the Data Distribution Service (DDS). It discusses key DDS concepts like domains, topics and QoS profiles. The tutorial then walks through several hands-on examples using Connector to demonstrate common patterns for filtering, high availability, late joining and partitioning of data. The goal is for attendees to learn the basics of building distributed applications with DDS and Connector.
Creating a Java Internet of Things Gateway
At JavaOne, Eurotech's David Woodard presented How to create a Java-based M2M / Internet of Things Gateway
Mobile web development
This document summarizes a presentation on building mobile web experiences. It discusses using the Genymotion emulator, Android application components like activities, intents, services, content providers and broadcast receivers. It also covers persistent storage options in Android, using GitHub version control, REST APIs, and making requests using the Android Volley library.
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This document discusses reactive data-centric architectures using the Data Distribution Service (DDS) standard. It provides an overview of DDS and how it enables data-centric and reactive systems. Key points include:
- DDS provides a distributed data space that allows applications to asynchronously read and write data while enjoying spatial and temporal decoupling.
- Data models in DDS define application data types and provide type-safety and content-based routing of data.
- Quality of service policies in DDS control properties of data sharing like reliability, latency, ownership, etc.
- Examples show how to write and read DDS data in C++ and Python by creating publishers, subscribers, and data readers/writers
Blue Teaming On A Budget
This talk was at California Information Technology in Education (CITE 2022. This talk discussed tool that a blue team can use to gain to better respond to threats on their networks
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Accessing REST Web Services and Backend as a Service (BaaS) from a native mobile app on Android and iOS using C++ or Object Pascal.
AnDevCon: Introduction to Darwino
This document introduces Darwino, an open platform for rapidly developing social business applications targeting mobile and cloud. Darwino allows developers to focus on the application instead of specifics of each mobile platform or wiring applications to legacy systems. It provides seamless offline capability and adapts to a developer's preferred tools. The key components of Darwino include a studio, UI components, REST services, and DarwinoDB, a JSON data store. DarwinoDB enables multi-point synchronization of data across devices and data sources. Darwino aims to make applications fully portable across platforms and reduce costs of building mobile, social, and cloud business applications.
Similar to Web Enabled DDS - London Connext DDS Conference (20)
Desktop, Embedded and Mobile Apps with Vortex Café
Desktop, Embedded and Mobile Apps with Vortex Café
Desktop, Embedded and Mobile Apps with PrismTech Vortex Cafe
Desktop, Embedded and Mobile Apps with PrismTech Vortex Cafe
Mapping the RESTful Programming Model to the DDS Data-Centric Model
Mapping the RESTful Programming Model to the DDS Data-Centric Model
Running your Spring Apps in the Cloud Javaone 2014
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Data in a Cloud - Introduction to Qt Cloud Services
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More from Gerardo Pardo-Castellote
DDS-Security 1.2 - What's New? Stronger security for long-running systems
DDS Security Version 1.2 was adopted in 2024. This revision strengthens support for long runnings systems adding new cryptographic algorithms, certificate revocation, and hardness against DoS attacks.
DDS, the US Navy, and the Need for Distributed Software
From its first use case that enabled distributed communications for US Navy ships to the autonomous systems of today, the DDS family of standards has enabled new generations of applications to run reliably, rapidly and securely, regardless of distance or scale.
To commemorate the 20th year milestone, the DDS Foundation is creating presentations that highlight the 14 specifications in the DDS standard, along with selected real-world use cases.
This presentation introduces some of the original use-cases and experiments, along with a brief history of the Standards.
A recorded video of the presentation is available at this URL
https://www.brighttalk.com/webcast/12231/602966
Introduction to DDS: Context, Information Model, Security, and Applications.
Introduction to DDS: Context, Information Model, Security, and Applications.Gerardo Pardo-Castellote
Introduction to the Data-Distribution Service (DDS): Context and Applications.
This 50 minute presentation summarizes the main features of DDS including the information model, the type system, and security as well as how typical applications use DDS.
It was presented at the Canadian Government Information Day in Ottawa on September 2018.
There is also a video of this presentation at https://www.youtube.com/watch?v=6iICap5G7rw.DDS-TSN OMG Request for Proposals (RFP)
This Object Management Group (OMG) RFP solicits submissions identifying and defining mechanisms to achieve integration between DDS infrastructures and TSN networks. The goal is to provide all artifacts needed to support the design, deployment and execution of DDS systems over TSN networks.
The DDS-TSN integration specification sought shall realize the following functionality:
● Define mechanisms that provide the information required for TSN-enabled networks to calculate any network schedules needed to deploy a DDS system.
OMG RFP
● Identify those parts of the set of the IEEE TSN standards that are relevant for a DDS-TSN integration and indicate how the DDS aspects are mapped onto, or related to, the associated TSN aspects. Examples include TSN- standardized information models for calculating system-wide schedules and configuring network equipment.
● Identify and specify necessary extensions to the [DDSI-RTPS] and [DDS- SECURITY] specifications, if any, to allow DDS infrastructures to use TSN- enabled networks as their transport while maintaining interoperability between different DDS implementations.
● Identify and specify necessary extensions to the DDS and DDS- XML specification, if any, to allow declaration of TSN-specific properties or quality of service attributes.
A Converged Approach to Standards for Industrial Automation
A NEW ARCHITECTURE PROPOSAL TO INTEGRATE OPC UA, DDS & TSN.
Suppliers and end users need a complete solution to address the complexity of future industrial automation systems. These systems require:
• Interoperability to allow devices and independent software applications from multiple suppliers to work together seamlessly
• Extensibility to incorporate future large or intelligent systems
• Performance and flexibility to handle challenging deployments and use cases
• Robustness to guarantee continuity of operation despite partial failures
• Integrity and fine-grained security to protect against cyber attacks
• Widespread support for an industry standard
This document proposes a new technical architecture to build this future. The design combines the best of the OPC Unified Architecture (OPC UA), Data Distribution Service (DDS), and Time-Sensitive Networking (TSN) standards. It will connect the factory floor to the enterprise, sensors to cloud, and real-time devices to work cells. This proposal aims to define and standardize the architecture to unify the industry.
Overview of the DDS-XRCE specification
The document provides an overview of the DDS-XRCE specification, which defines an Agent-Client communication model to enable the use of the DDS data distribution service (DDS) in extremely resource-constrained networks. It describes the motivation for DDS-XRCE and its key aspects, including the message structure, interaction model, supported deployment scenarios, and how it provides security through the use of a client key.
DDS-Security Interoperability Demo - March 2018
The document describes a demonstration of interoperability between 5 vendor DDS security implementations using a shapes demo application. The demo consists of 6 scenarios that illustrate different aspects of DDS security configuration and functionality, including controlling access to the domain, enabling open access to selected topics, comparing data integrity vs encryption, protecting metadata, securing discovery, and fine-grained access control at the topic level. Each scenario varies the security governance and permission files to achieve the desired access control configuration.
Applying MBSE to the Industrial IoT: Using SysML with Connext DDS and Simulink
Applying MBSE to the Industrial IoT: Using SysML with Connext DDS and SimulinkGerardo Pardo-Castellote
This document summarizes a presentation about applying model-based systems engineering (MBSE) to industrial internet of things (IIoT) systems using the SysML modeling language, Connext DDS middleware, and Simulink. It discusses how SysML can be used to design interfaces, applications, and quality of service policies for DDS-connected systems. The presentation also provides examples of integrating MagicDraw, Simulink, and Connext DDS to enable translating SysML models into implementations and deployments of distributed IIoT applications and components.Deep Dive into the OPC UA / DDS Gateway Specification
One of the most important challenges that system designers and system integrators face when deploying complex Industrial Internet of Things (IoT) systems is the integration of different connectivity solutions and standards. At RTI, we are constantly working to accelerate the Industrial IoT revolution. Over the past few years, we have developed standard connectivity gateways to ensure that DDS systems can easily integrate with other core connectivity frameworks.
This year, we developed a standard OPC UA/DDS Gateway, a bridge between two of the most well-known Industrial IoT connectivity frameworks. We are excited to announce that the gateway was just adopted by the Object Management Group (OMG).
In this webinar, we will dive deeper into the importance of choosing a baseline core connectivity standard for the Industrial IoT and how to ensure all system components are fully integrated. Attendees will also learn:
How the OPC UA/DDS Gateway specification was developed and how it works
How to leverage the Gateway to enable DDS and OPC UA applications to interoperate transparently
About the first standard connectivity gateway released with RTI Web Integration Service in Connext DDS 5.3
Gateways are a critical component of system interoperability and we will keep working to help companies accelerate Industrial IoT adoption.
OPC UA/DDS Gateway version 1.0 Beta
This document defines an OPC UA/DDS gateway specification. It specifies how to bridge the OPC UA and DDS protocols by defining mappings between their data models, type systems and core services. This includes mapping OPC UA data types, services and subscriptions to DDS data types and topics as well as mapping DDS data types and the global data space to OPC UA address space objects. Configuration formats are also defined to allow configuration of OPC UA to DDS and DDS to OPC UA bridges.
DDS for eXtremely Resource Constrained Environments 1.0 Beta
This is the DDS-XRCE 1.0 Beta specification adopted by the OMG March 2018.
The purpose of DDS-XRCE is to enable resource-constrained devices to participate in DDS communication, while at the same time allowing those devices to be disconnected for long periods of time but still be discoverable by other DDS applications.
DDS-XRCE defines a wire protocol, the DDS-XRCE protocol, to be used between an XRCE Client and XRCE Agent. The XRCE Agent is a DDS Participant in the DDS Global Data Space. The DDS-XRCE protocol allows the client to use the XRCE Agent as a proxy in order to produce and consume data in the DDS Global Data Space.
DDS-Security Interoperability Demo - December 2017
Demonstrates interoperability of 5 independent products that implement the Data-Distribution Service (DDS) Security Standard
(https://www.omg.org/spec/DDS-SECURITY/).
Tests the following implementations: RTI Connext DDS, Twin Oaks Computing CoreDX DDS, Kongsberg InterComm DDS, ADLink Vortex DDS Cafe, and Object Computing Inc OpenDDS.
DDS-Security Interoperability Demo - September 2017
Demonstrates interoperability of 3 independent products that implement the Data-Distribution Service (DDS) Security Standard
(https://www.omg.org/spec/DDS-SECURITY/).
Tests the following implementations: RTI Connext DDS, Twin Oaks Computing CoreDX DDS, and Kongsberg InterComm DDS.
Extensible Types for DDS (DDS-XTYPES) version 1.2
This specification provides the following additional facilities to DDS [DDS] implementations and users:
* Type System. The specification defines a model of the data types that can be used for DDS Topics. The type system is formally defined using UML. The Type System is de- fined in section 7.2 and its subsections. The structural model of this system is defined in the Type System Model in section 7.2.2. The framework under which types can be modi- fied over time is summarized in section 7.2.3, “Type Extensibility and Mutability.” The concrete rules under which the concepts from 7.2.2 and 7.2.3 come together to define compatibility in the face of such modifications are defined in section 7.2.4, “Type Com- patibility.”
* Type Representations. The specification defines the ways in which types described by the Type System may be externalized such that they can be stored in a file or communi- cated over a network. The specification adds additional Type Representations beyond the
DDS-XTypes version 1.2 1
one (IDL [IDL41]) already implied by the DDS specification. Several Type Representa- tions are specified in the subsections of section 7.3. These include IDL (7.3.1), XML (7.3.2), XML Schema (XSD) (7.3.3), and TypeObject (7.3.4).
* Data Representation. The specification defines multiple ways in which objects of the types defined by the Type System may be externalized such that they can be stored in a file or communicated over a network. (This is also commonly referred as “data serializa- tion” or “data marshaling.”) The specification extends and generalizes the mechanisms already defined by the DDS Interoperability specification [RTPS]. The specification in- cludes Data Representations that support data type evolution, that is, allow a data type to change in certain well-defined ways without breaking communication. Two Data Repre- sentations are specified in the subsections of section 7.4. These are Extended CDR (7.4.1, 7.4.2, and 7.4.3) and XML (7.4.4).
* Language Binding. The specification defines multiple ways in which applications can access the state of objects defined by the Type System. The submission extends and gen- eralizes the mechanism currently implied by the DDS specification (“Plain Language Binding”) and adds a Dynamic Language Binding that allows application to access data without compile-time knowledge of its type. The specification also defines an API to de- fine and manipulate data types programmatically. Two Language Bindings are specified in the subsections of section 7.5. These are the Plain Language Binding and the Dynamic Language Binding.
DDS-Security version 1.1
The document describes version 1.1 of the DDS Security specification which defines a security model and plugin architecture to provide information assurance capabilities to DDS implementations, including defining builtin plugins for authentication, access control, encryption, and logging; it also lists normative references and provides an overview of the specification's scope and conformance points.
Interface Definition Language (IDL) version 4.2
This document describes the Interface Definition Language (IDL) version 4.2 specification published by the Object Management Group (OMG). It defines the syntax and semantics of IDL, which is used to define interfaces, data types, exceptions, modules and other elements used in CORBA, CCM, and other OMG specifications. The document includes sections on lexical conventions, grammar, scoping rules, standardized annotations, and CORBA/CCM profiles supported by IDL. It is intended to provide a standard way to define interfaces that are independent of specific programming languages.
DDS Security Specification version 1.0
This the the formal version 1.0 of the DDS Security specification released September 2016. OMG document number formal/2016-08-01.
DDS-Security defines the Security Model and Service Plugin Interface (SPI) architecture for compliant DDS implementations.
The DDS Security Model is enforced by the invocation of these SPIs by the DDS implementation. This specification also defines a set of builtin implementations of these SPIs.
* The specified builtin SPI implementations enable out-of-the box security and interoperability between compliant DDS applications.
* The use of SPIs allows DDS users to customize the behavior and technologies that the DDS implementations use for Information Assurance, specifically customization of Authentication, Access Control, Encryption, Message Authentication, Digital Signing, Logging and Data Tagging.
DDS for eXtremely Resource Constrained Environments
This specification is a response to the OMG RFP "eXtremely Resource Constrained Environments DDS (DDS- XRCE)"
It defines a DDS-XRCE Service based on a client-server protocol between a resource constrained, low-powered device (client) and an Agent (the server) that enables the device to communicate with a DDS network and publish and subscribe to topics in a DDS domain. The specifications purpose and scope is to ensure that applications based on different vendor’ implementations of the DDS-XRCE Service are compatible and interoperable.
This is the Joint submission by RTI, TwinOaks, and eProsima. Updated September 2017, OMG document number mars/2017-09-18.
DDS-XRCE - Revised Submission Presentation (September 2017)
Presentation of the joint revised submission (RTI, TwinOaks, eProsima) to the DDS-XRCE (DDS for Resource Constrained Environments) RFP.
DDS-XRCE (Extremely Resource Constrained Environments)
DDS for Extremely Resource Constrained Networks/Environments
(Draft Specification) updated June 2017.
Joint submission by RTI, TwinOaks and eProsima
More from Gerardo Pardo-Castellote (20)
DDS-Security 1.2 - What's New? Stronger security for long-running systems
DDS-Security 1.2 - What's New? Stronger security for long-running systems
DDS, the US Navy, and the Need for Distributed Software
DDS, the US Navy, and the Need for Distributed Software
Introduction to DDS: Context, Information Model, Security, and Applications.
Introduction to DDS: Context, Information Model, Security, and Applications.
A Converged Approach to Standards for Industrial Automation
A Converged Approach to Standards for Industrial Automation
Applying MBSE to the Industrial IoT: Using SysML with Connext DDS and Simulink
Applying MBSE to the Industrial IoT: Using SysML with Connext DDS and Simulink
Deep Dive into the OPC UA / DDS Gateway Specification
Deep Dive into the OPC UA / DDS Gateway Specification
DDS for eXtremely Resource Constrained Environments 1.0 Beta
DDS for eXtremely Resource Constrained Environments 1.0 Beta
DDS-Security Interoperability Demo - December 2017
DDS-Security Interoperability Demo - December 2017
DDS-Security Interoperability Demo - September 2017
DDS-Security Interoperability Demo - September 2017
DDS for eXtremely Resource Constrained Environments
DDS for eXtremely Resource Constrained Environments
DDS-XRCE - Revised Submission Presentation (September 2017)
DDS-XRCE - Revised Submission Presentation (September 2017)
DDS-XRCE (Extremely Resource Constrained Environments)
DDS-XRCE (Extremely Resource Constrained Environments)
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- 1. DDS DDS Web Enabled Gerardo Pardo-Castellote, Ph.D. Chief Technology Officer, RTI October 2014
- 2. Web Integration (OMG Web-Enabled DDS) Direct access to real-time data from Web-Based Applications Operational Data Web Web Enabled DDS Integration Service Web Enabled DDS GUARD Global Data Space © 2014 Real-Time Innovations, Inc.
- 3. Web-Enabled DDS as Gateway © 2014 Real-Time Innovations, Inc. HTTP Protected perimeter and network Open network Firewall DDS Protocol (RTPS) Native DDS Applications Client Application using the OMG standard HTTP-DDS protocol WebDDS Service
- 4. Scenarios • Mobile data access • Access to DDS from browser-based applications • Web-based UIs/Dashboards • Access from small devices • Access across firewall • Disconnected stateless clients – Short lived commands – Scripts © 2014 Real-Time Innovations, Inc.
- 5. WebDDS Object Model © 2014 Real-Time Innovations, Inc. class WebDDS_ProxyClasses «interface» WebDDS::Entity - name :string «value» WebDDS::Qos WebDDS::Topic «value» WebDDS::Type - name :string WebDDS:: DataWriter «value» WebDDS:: QosProfile - name :string WebDDS:: Subscriber WebDDS:: DataReader WebDDS:: DomainParticipant WebDDS:: Publisher WebDDS::Status WebDDS::WaitSet WebDDS::Application - name :string - session_id :SessionId «use» qos 0..* qos_profile
- 6. Object Type All URIs have the prefix “/dds/rest1” Application /applications/<appname> QosProfile /applications/<appname>/qos_profiles/<profile_name> Type /applications/<appname>/types/<typename> WaitSet /applications/<appname>/waitsets/<waitsetname> Participant /applications/<appname>/participants/<partname> RegisteredT ype © 2014 Real-Time Innovations, Inc. Resources /applications/<appname>/participants/<partname>/regi stered_types/<reg_type_name> Topic /applications/<appname>/participants/<partname>/topi cs/<topicname> Publisher /applications/<appname>/participants/<partname>/publ ishers/<pubname> Subscriber /applications/<appname>/participants/<partname>/subs cribers/<subname> DataWriter /applications/<appname>/participants/<partname>/publ ishers/<pubname>/data_writers/<dwname> DataReader /applications/<appname>/participants/<partname>/subs cribers/<subname>/data_readers/<drname>
- 7. WebDDS API access to resources © 2014 Real-Time Innovations, Inc. Type of operation REST HTTP verb Create POST Update PUT Read, Get GET Delete DELETE All others POST
- 8. © 2014 Real-Time Innovations, Inc. Resou rce Representation QoS XML -> same as DDS QoS profile files Types XML -> same as DDS XML Application Creation -> Can be converted to/from IDL -> DDS-XTYPES standard Data XML -> DDS-XTYPES standard
- 9. Find out more… www.rti.com community.rti.com demo.rti.com www.youtube.com/realtimeinnovations blogs.rti.com www.twitter.com/RealTimeInnov www.facebook.com/RTIsoftware © 2014 Real-Time Innovations, Inc. dds.omg.org www.omg.org www.slideshare.net/GerardoPardo www.slideshare.net/RealTimeInnovations