Tutorial on the OMG Data Distribution Service

Tutorial on the OMG Data Distribution ServiceVictor GiddingsObjective Interface Systems, Inc.victor.giddings@ois.comIntroduction OMG Data Distribution Service• Adopted by OMG in June 2003• Joint submission of– Real-Time Innovations– THALES– Objective Interface Systems– MITRE (Supporter)• Finalized in April 2004• Current version – 1.1 – March 2005• Provides data distribution services– Typed – Multi-point– Scalable– Quality of Service (QoS)-controlled•T wo layers– Data Centric Publish and Subscribe – DCPS– Data Local Reconstruction Layer - DLRLSpecification Contents• Overview– 1.1 Introduction– 1.2 Purpose• Data-Centric Publish- Subscribe (DCPS)– 2.1 Platform Independent Model (PIM)• 2.1.1 Overview and Design Rationale • 2.1.2 PIM Description • 2.1.3 Supported QoS• 2.1.4 Listeners, Conditions and Wait-sets• 2.1.5 Built-in Topics• 2.1.6 Interaction Model– 2.2 OMG IDL Platform Specific Model (PSM)• 2.2.1 Introduction• 2.2.2 PIM to PSM Mapping Rules• 2.2.3 DCPS PSM : IDLSpecification Contents• Data Local Reconstruction Layer (DLRL) – 3.1 Platform Independent Model (PIM)• 3.1.1 Overview and Design Rationale• 3.1.2 DLRL Description• 3.1.3 What Can Be Modeled with DLRL• 3.1.4 Structural Mapping• 3.1.5 Operational Mapping• 3.1.6 Functional Mapping– 3.2 OMG IDL Platform Specific Model (PSM)• 3.2.1 Run-time Entities • 3.2.2 Generation Process• 3.2.3 Example• A - Compliance Points • B - Syntax for DCPS Queries and Filters• C - ...