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8th international conference on generative programming and component engineering

作者： Heidenreich, Florian Johannes, Jendrik Seifert, Mirko Wende, Christian Boehme, Marcel Tech Univ Dresden Fak Informat Lehrstuhl Softwaretechnol Dresden Germany

ISBN: (纸本)9781605584942

Template languages are widely used within generative programming, because they provide intuitive means to generate software artefacts expressed in a specific object language. However, most template languages perform template instantiation on the level of string literals, which allows neither syntax checks nor semantics analysis. To make sure that generated artefacts always conform to the object language, we propose to perform static analysis at template design time. In addition, the increasing popularity of domain-specific languages (DSLs) demands an approach that allows to reuse both the concepts of template languages and the corresponding tools. In this paper we address the issues mentioned above by presenting how existing languages can be automatically extended with generic template concepts (e.g., placeholders, loops, conditions) to obtain safe template languages. these languages provide means for syntax checking and static semantic analysis w.r.t. the object language at template design time. We discuss the prerequisites for this extension, analyse the types of correctness properties that can be assured at template design time, and exemplify the key benefits of this approach on a textual DSL and Java.

关键词： Languages generative programming template language safe authoring language extension

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Advanced Runtime Adaptation for Java 09

Advanced Runtime Adaptation for Java

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8th international conference on generative programming and component engineering

作者： Villazon, Alex Binder, Walter Ansaloni, Danilo Moret, Philippe Univ Lugano Fac Informat CH-6900 Lugano Switzerland

ISBN: (纸本)9781605584942

Dynamic aspect-oriented programming (AOP) enables runtime adaptation of aspects, which is important for building sophisticated, aspect-based software engineering tools, such as adaptive profilers or debuggers that dynamically modify instrumentation code in response to user interactions. Today, many AOP frameworks for Java, notably AspectJ, focus on aspect weaving at compile-time or at load-time, and offer only limited support for aspect adaptation and reweaving at runtime. In this paper, we introduce HotWave, an AOP framework based on AspectJ for standard Java Virtual Machines (JVMs). HotWave supports dynamic (re) weaving of previously loaded classes, and it ensures that all classes loaded in a JVM can be (re) woven, including the classes of the standard Java class library. HotWave features a novel mechanism for inter-advice communication, enabling efficient data passing between advices that are woven into the same method. We explain HotWave's programming model and discuss our implementation techniques. As case study, we present an adaptive, aspect-based profiler that leverages HotWave's distinguishing features.

关键词： Algorithms Languages Measurement Dynamic aspect-oriented programming runtime aspect adaptation and (re) weaving bytecode instrumentation code hotswapping AspectJ Java Virtual Machine

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HotWave: Creating Adaptive Tools with Dynamic Aspect-Oriented programming in Java 09

HotWave: Creating Adaptive Tools with Dynamic Aspect-Oriente...

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8th international conference on generative programming and component engineering

作者： Villazon, Alex Binder, Walter Ansaloni, Danilo Moret, Philippe Univ Lugano Fac Informat CH-6900 Lugano Switzerland

ISBN: (纸本)9781605584942

Developing tools for profiling, debugging, testing, and reverse engineering is error-prone, time-consuming, and therefore costly when using low-level techniques, such as bytecode instrumentation. As a solution to these problems, we promote tool development in Java using high-level aspect-oriented programming (AOP). We demonstrate that the use of aspects yields compact tools that are easy to develop and extend. As enabling technology, we rely on HotWave, a new tool for dynamic and comprehensive aspect weaving. HotWave reconciles compatibility with existing virtual machine and AOP technologies. It provides support for runtime adaptation of aspects and reweaving of previously loaded code, as well as the ability to weave aspects into all methods executing in a Java Virtual Machine, including methods in the standard Java class library. HotWave also features a new mechanism for efficiently passing data between advices that are woven into the same method. We demonstrate the benefits of HotWave's distinguishing features with two case studies in the area of profiling.

关键词： Algorithms Languages Measurement Dynamic aspect-oriented programming runtime weaving bytecode instrumentation code hotswapping profiling AspectJ Java Virtual Machine

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Constructing language processors with algebra combinators 07

Constructing language processors with algebra combinators

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6th international conference on generative programming and component engineering

作者： Frisby, Nicolas Kimmell, Garrin Weaver, Philip Alexander, Perry Univ Kansas Informat Technol & Telecommun Ctr Dept Elect Engn & Comp Sci Lawrence KS 66045 USA Signalicorp Portland OR 97212 USA

ISBN: (纸本)9781595938558

Modular Monadic Semantics (MMS) is a well-known mechanism for structuring modular denotational semantic definitions for programming languages. the principal attraction of MMS is that families of language constructs can be independently specified and later combined in a mix-and-match fashion to create a complete language semantics. this has proved useful for constructing formal, yet executable, semantics when prototyping languages. In this work we demonstrate that MMS has an additional software engineering benefit. In addition to composing semantics for various language constructs, we can use MMS to compose various differing semantics for the same language constructs. this capability allows us to compose and reuse orthogonal language tasks such as type checking and compilation. We describe algebra combinators, the principal vehicle for achieving this reuse, along with a series of applications of the technique for common language processing tasks. (C) 2010 Elsevier B.V. All rights reserved.

关键词： Generic programming Modular semantics

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Extending AspectJ for Separating Regions 09

Extending AspectJ for Separating Regions

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8th international conference on generative programming and component engineering

作者： Akai, Shumpei Chiba, Shigeru Tokyo Inst Technol Tokyo Japan

ISBN: (纸本)9781605584942

Synchronization is a good candidate for an aspect in aspect-oriented programming (AOP) since programmers have to choose the best granularity of synchronization for the underlying hardware to obtain the best execution performance. If synchronization is an aspect, programmers can change the synchronization code independently of the rest of the program when the program runs on different hardware. However, existing AOP languages such as AspectJ have problems. they cannot select an arbitrary code region as a join point. Moreover, they cannot enforce weaving of a synchronization aspect. Since it is an alternative feature in feature modeling, at least one of available synchronization aspects must be woven. Otherwise, the program would be thread-unsafe. Since an aspect in AspectJ is inherently optional, programmers must be responsible for weaving it. To solve these problems, this paper proposes two new constructs for AspectJ, region cut and assertions for advice. Regioncut selects arbitrary code region as a join point and assertion for advice enforces weaving a mandatory advice. We implemented these constructs by extending the AspectBench compiler. We evaluated the design of our constructs by applying them to two open-source software products, Javassist and Hadoop.

关键词： Languages Design Aspect-Oriented programming Feature-Oriented programming Region Synchronization

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Generating Execution Infrastructures for component-oriented Specifications With a Model Driven Toolchain A case study for MARTE's GCM and real-time annotations 09

Generating Execution Infrastructures for Component-oriented ...

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8th international conference on generative programming and component engineering

作者： Radermacher, Ansgar Cuccuru, Arnaud Gerard, Sebastien Terrier, Francois CEA LIST Lab Model Driven Engn Embedded Syst F-91191 Gif Sur Yvette France

ISBN: (纸本)9781605584942

the development of embedded Systems becomes more and more complex. Model driven engineering can help to manage this complexity by specifying real-time properties in a declarative way and automating the deployment. the UML profile MARTE is a OMG standard that allows to model real-time properties. However, there is no execution infrastructure that supports MARTE's generic component model (GCM) and the application modeling (HLAM). the contribution of the paper is twofold: it presents a proposition of a component model with flexible interaction support that allows to tailor code generation to domain and target requirements. Second, it will show how MARTE's GCM concepts can be implemented by means of the proposed component model. the proposed component model has been largely developed in the context of the French national project Flex-eWare with the intention to unify major components model, notably the CORBA component model (CCM) and Fractal. the paper explains the major elements of this model in detail and shows how specific connector and containers can implement MARTE specifications. We present the tool support that is integrated into a UML modeler and based on model-to- model and model to text transformations.

关键词： Design component models MARTE model driven engineering middleware connectors

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A type-centric framework for specifying heterogeneous, large-scale, component-oriented, architectures 07

A type-centric framework for specifying heterogeneous, large...

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6th international conference on generative programming and component engineering

作者： Jung, Georg Hatcliff, John Univ Potsdam Inst Informat D-14482 Potsdam Germany Kansas State Univ Manhattan KS 66506 USA

ISBN: (纸本)9781595938558

Maintaining integrity and consistency, and effecting conformance in architectures of large-scale systems require specification and enforcement of many different forms of structural constraints. While type systems have proved effective for enforcing structural constraints in programs and data structures, most architectural modeling frameworks include only weak notions of typing or rely on first order logic constraint languages that have steep learning curves associated with them and that become unwieldy when scaling to large systems. We present the CADENA Architecture Language with Meta-modeling (CALM) - that uses multi-level type systems to specify and enforce a variety of architectural constraints relevant to the development of large-scale component-based systems. CADENA is a robust and extensible tool that has been used to specify a number of industrial strength component models and applied in multiple industrial research projects on model-driven development and software product lines. (C) 2009 Elsevier B.V. All rights reserved.

关键词： component-oriented development Meta-modeling Middleware Model-driven development Software architecture Type systems

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A type-centric framework for specifying heterogeneous, large-scale, component-oriented, architectures

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SCIENCE OF COMPUTER programming 2010年第7期75卷 615-637页

作者： Jung, Georg Hatcliff, John Univ Potsdam Inst Informat D-14482 Potsdam Germany Kansas State Univ Manhattan KS 66506 USA

关键词： component-oriented development Meta-modeling Middleware Model-driven development Software architecture Type systems

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Algorithms for User Interfaces 09

Algorithms for User Interfaces

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8th international conference on generative programming and component engineering

作者： Jarvi, Jaakko Marcus, Mat Parent, Sean Freeman, John Smith, Jacob Texas A&M Univ College Stn TX 77843 USA

ISBN: (纸本)9781605584942

User interfaces for modern applications must support a rich set of interactive features. It is commonplace to find applications with dependencies between values manipulated by user interface elements, conditionally enabled controls, and script record-ability and playback against different documents. A significant fraction of the application programming effort is devoted to implementing such functionality, and the resulting code is typically not reusable. this paper extends our "property models" approach to programming user interfaces. Property models allow a large part of the functionality of a user interface to be implemented in reusable libraries, reducing application specific code to a set of declarative rules. We describe how, as a by-product of computations that maintain the values of user interface elements, property models obtain accurate information of the currently active dependencies among those elements. this information enables further expanding the class of user interface functionality that we can encode as generic algorithms. In particular, we describe automating the decisions for the enablement of user interface widgets and activation of command widgets. Failing to disable or deactivate widgets correctly is a common source of user-interface defects, which our approach largely removes. We report on the increased reuse, reduced defect rates, and improved user interface design turnarounds in a commercial software development effort as a result of adopting our approach.

关键词： Algorithms Design Software reuse component software User interfaces Declarative specifications Constraint systems

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GPCE'10 - Proceedings of the 2010 conference on generative programming and component engineering

GPCE'10 - Proceedings of the 2010 Conference on Generative P...

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9th international conference on generative programming and component engineering, GPCE'10

ISBN: (纸本)9781450301541

the proceedings contain 20 papers. the topics discussed include: automatic variation-point identification in function-block-based models;efficient extraction and analysis of preprocessor-based variability;iterative type inference with attribute grammars;automatic and efficient simulation of operation contracts;implicit invocation meets safe, implicit concurrency;a component-based run-time evolution infrastructure for resource-constrained embedded systems;code clones in feature-oriented software product lines;composition of dynamic analysis aspects;applications of enhanced dynamic code evolution for Java in GUI development and dynamic aspect-oriented programming;domain-specific language integration with compile-time parser generator library;ABI compatibility through a customizable language;model-based kinematics generation for modular mechatronic toolkits;and incremental type-checking for type-reflective metaprograms.

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