Reducing application code complexity with vocabulary-specific XML language bindings

White, Jules; Kolpackov, Boris; Natarajan, Balachandran; Schmidt, Douglas C.

doi:10.1145/1167253.1167316

Cited by 9 publications

(6 citation statements)

References 6 publications

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“…Optimize the XML-to-IDL processing capability. DAnCE uses a vocabulary-specific XML data binding [13] tool called the XML Schema Compiler (XSC). XSC reads D&C XML schemas and generates a C++-based interface to XML documents built atop the Document Object Model (DOM) XML programming API.…”

Section: Improving Runtime Plan Loadingmentioning

confidence: 99%

Efficient and deterministic application deployment in component-based enterprise distributed real-time and embedded systems

Otte

Gokhale

Schmidt

2013

Information and Software Technology

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Context: Component-based middleware, such as the Lightweight COR-BA Component Model, is increasingly used to implement enterprise distributed real-time and embedded (DRE) systems. In addition to supporting the quality-of-service (QoS) requirements of individual DRE systems, component technologies must also support bounded latencies when effecting deployment changes to DRE systems in response to changing environmental conditions and operational requirements.Objective: The goals of this paper are to (1) study sources of inefficiencies and non-deterministic performance in deployment capabilities for DRE systems and (2) devise solutions to overcome these performance problems.Method: The paper makes two contributions to the study of the deployment and configuration of distributed component based applications. First, we analyze how conventional implementations of the OMG's Deployment and Configuration (D&C) specification for component-based systems can significantly degrade deployment latencies. Second, we describe architectural changes and performance optimizations implemented within the LocalityEnhanced Deployment and Configuration Engine (LE-DAnCE) implementation of the D&C specification to obtain efficient and deterministic deployment latencies.Results: We analyze the performance of LE-DAnCE in the context of component deployments on 10 nodes for a representative DRE system consisting of 1,000 components and in a cluster environment with up to 100 nodes. Our results show LE-DAnCE's optimizations provide a bounded dePreprint submitted to Information and Software Technology July 27, 2012 ployment latency of less than 2 seconds for the 1,000 component scenario with just a 4 percent jitter. Conclusion:The improvements contained in the LE-DAnCE infrastructure provide an efficient and scaleable standards-based deployment system for component-based enterprise DRE systems. In particular, deployment time parallelism can improve deployment latency significantly, both during pre-deployment analysis of the deployment plan and during the process of installing and activating components.

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Section: Improving Runtime Plan Loadingmentioning

confidence: 99%

Efficient and deterministic application deployment in component-based enterprise distributed real-time and embedded systems

Otte

Gokhale

Schmidt

2013

Information and Software Technology

Self Cite

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“…Optimize the XML to IDL processing capability. DAnCE uses a vocabulary-specific XML data binding [28] tool called the XML Schema Compiler (XSC). XSC reads D&C XML schemas and generates a C++-based interface to XML documents built atop the Document Object Model (DOM) XML programming API.…”

Section: Improving Runtime Plan Processingmentioning

confidence: 99%

Predictable deployment in component-based enterprise distributed real-time and embedded systems

Otte

Gokhale

Schmidt

2011

Proceedings of the 14th International ACM Sigsoft Symposium on Component Based Software Engineering

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Component-based middleware, such as the Lightweight COR-BA Component Model, are increasingly used to implement large-scale distributed real-time and embedded (DRE) systems. In addition to supporting the quality of service (QoS) requirements of individual DRE systems, component technologies must also support bounded latencies when effecting deployment changes to DRE systems in response to changing environmental conditions and operational requirements.This paper makes three contributions to the study of predictable deployment latencies in DRE systems. First, we describe OMG's Deployment and Configuration (D&C) specification for component-based systems and discuss how conventional implementations of this standard can significantly degrade deployment latencies. Second, we describe architectural changes and performance optimizations implemented within the Locality-Enhanced Deployment and Configuration Engine (LE-DAnCE) implementation of the D&C specification. Finally, we analyze the performance of LE-DAnCE in the context of component deployments on 10 nodes for a representative DRE system consisting of 1,000 components. Our results show LE-DAnCE's optimizations provide a bounded deployment latency of less than 2 seconds with 4 percent jitter.

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“…According to [25] XML processing can be implemented using a vocabulary-independent data access interface such as those provided by SAX 1 or DOM [20]; or using a vocabularydependent data access interface, where XML data is mapped into application-specific concepts. The first option is recognized to be difficult and error-prone producing code that is hard to modify and maintain.…”

Section: Introductionmentioning

confidence: 99%

“…The second option, also known as XML Data Binding, is favoured as " relieve developers from the burden of mapping data from a vocabularyindependent DAI (Data Access Interface) to application-specific data structures. Developers can focus on the semantics of the data they are manipulating, while leaving the type conversion to the vocabulary-specific DAI implementation" [25]. XML data binding code is often produced by using code generators.…”

Section: Introductionmentioning

confidence: 99%

Dealing with large schema sets in mobile SOS-based applications

Tamayo

Granell

Huerta

2011

Proceedings of the 2nd International Conference on Computing for Geospatial Research &Amp; Applications - COM.Geo '11

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Although the adoption of OGC Web Services for server, desktop and web applications has been successful, its penetration in mobile devices has been slow. One of the main reasons is the performance problems associated with XML processing as it consumes a lot of memory and processing time, which are scarce resources in a mobile device. In this paper we propose an algorithm to generate efficient code for XML data binding for mobile SOS-based applications. The algorithm take advantage of the fact that individual implementations use only some portions of the standards' schemas, which allows the simplification of large XML schema sets in an application-specific manner by using a subset of XML instance files conforming to these schemas.Comment: 9 pages, 2 tables, 7 figure

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Reducing application code complexity with vocabulary-specific XML language bindings

Abstract: The eXtensible Markup Language (XML)

Cited by 9 publications

References 6 publications

Efficient and deterministic application deployment in component-based enterprise distributed real-time and embedded systems

Efficient and deterministic application deployment in component-based enterprise distributed real-time and embedded systems

Predictable deployment in component-based enterprise distributed real-time and embedded systems

Dealing with large schema sets in mobile SOS-based applications

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