Towards a Hybrid Approach to Build Aspect-Oriented Programs
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Smart Execution of Distributed Application by Balancing Resources in Mobile Devices
ALMA MATER STUDIORUM - UNIVERSITÀ DI BOLOGNA SCUOLA DI INGEGNERIA E ARCHITETTURA DISI INGEGNERIA INFORMATICA TESI DI LAUREA in Reti di Calcolatori M Smart execution of distributed application by balancing resources in mobile devices and cloud-based avatars CANDIDATO: RELATORE: Giacomo Gezzi Chiar.mo Prof. Ing. Antonio Corradi CORRELATORE: Chiar.mo Prof. Cristian Borcea Anno Accademico 2014/2015 Sessione III 2 Abstract L’obiettivo del progetto di tesi svolto e` quello di realizzare un servizio di livello middleware dedicato ai dispositivi mobili che sia in grado di fornire il supporto per l’offloading di codice verso una infrastruttura cloud. In particolare il progetto si concentra sulla migrazione di codice verso macchine virtuali dedicate al singolo utente. Il sistema operativo delle VMs e` lo stesso utilizzato dal device mobile. Come i precedenti lavori sul computation offloading, il progetto di tesi deve garantire migliori per- formance in termini di tempo di esecuzione e utilizzo della batteria del dispositivo. In particolare l’obiettivo piu` ampio e` quello di adattare il principio di computation offloading a un contesto di sistemi distribuiti mobili, miglio- rando non solo le performance del singolo device, ma l’esecuzione stessa dell’applicazione distribuita. Questo viene fatto tramite una gestione di- namica delle decisioni di offloading basata, non solo, sullo stato del de- vice, ma anche sulla volonta` e/o sullo stato degli altri utenti appartenenti allo stesso gruppo. Per esempio, un primo utente potrebbe influenzare le decisioni degli altri membri del gruppo specificando una determinata richiesta, come alta qualita` delle informazioni, risposta rapida o basata su altre informazioni di alto livello. -
Xtext / Sirius - Integration the Main Use-Cases
Xtext / Sirius - Integration The Main Use-Cases White Paper December 2017 SUMMARY Chapter 1 Introduction 1 Chapter 2 Let’s start 2 Chapter 2.1 What modeling is about? 2 Chapter 2.2 Benefits of graphical modeling 3 Chapter 2.3 Benefits of textual modeling 5 Chapter 3 What is Xtext? 6 Chapter 4 What is Sirius? 8 Chapter 5 Xtext & Sirius in action 10 Chapter 5.1 Case 1: Editing the same models both graphically and textually 10 Chapter 5.2 Case 2: Embedding an Xtext Editor into Sirius 15 Chapter 6 How may we help you? 18 Introduction Introduction You are going to create a domain-specific modeling tool and you wonder how users will edit and visualize the models: textually with a dedicated syntax and a rich textual editor ? or graphically with diagrams drawn with a palette and smart tools? Both approaches are interesting and can be used complementary: While text is able to carry more detailed information, a diagram highlights the relationship between elements much better. In the end, a good tool should combine both, and use each notation where it suits best. In this white paper, we will explain the benefits of each approach. Then we will present Eclipse Xtext and Eclipse Sirius, two open-source frameworks for the development of textual and graphical model editors. And finally, we will detailed two use-cases where these two technologies can be integrated in the same modeling workbench. 1 Let’s start Let’s start What modeling is about? Before presenting the graphical and textual modeling approaches, it is important to briefly clarify what we mean by modeling. -
Design Pattern Implementation in Java and Aspectj
Design Pattern Implementation in Java and AspectJ Jan Hannemann Gregor Kiczales University of British Columbia University of British Columbia 201-2366 Main Mall 201-2366 Main Mall Vancouver B.C. V6T 1Z4 Vancouver B.C. V6T 1Z4 jan [at] cs.ubc.ca gregor [at] cs.ubc.ca ABSTRACT successor in the chain. The event handling mechanism crosscuts the Handlers. AspectJ implementations of the GoF design patterns show modularity improvements in 17 of 23 cases. These improvements When the GoF patterns were first identified, the sample are manifested in terms of better code locality, reusability, implementations were geared to the current state of the art in composability, and (un)pluggability. object-oriented languages. Other work [19, 22] has shown that implementation language affects pattern implementation, so it seems The degree of improvement in implementation modularity varies, natural to explore the effect of aspect-oriented programming with the greatest improvement coming when the pattern solution techniques [11] on the implementation of the GoF patterns. structure involves crosscutting of some form, including one object As an initial experiment we chose to develop and compare Java playing multiple roles, many objects playing one role, or an object [27] and AspectJ [25] implementations of the 23 GoF patterns. playing roles in multiple pattern instances. AspectJ is a seamless aspect-oriented extension to Java, which means that programming in AspectJ is effectively programming in Categories and Subject Descriptors Java plus aspects. D.2.11 [Software Engineering]: Software Architectures – By focusing on the GoF patterns, we are keeping the purpose, patterns, information hiding, and languages; D.3.3 intent, and applicability of 23 well-known patterns, and only allowing [Programming Languages]: Language Constructs and Features – the solution structure and solution implementation to change. -
Weaving Eclipse Applications
Weaving Eclipse Applications Fabio Calefato, Filippo Lanubile, Mario Scalas, 1 Dipartimento di Informatica, Università di Bari, Italy {calefato, lanubile, scalas}@uniba.it Abstract. The Eclipse platform fully supports the ideas behind software components: in addition it also adds dynamic behavior allowing components to be added, replaced or removed at runtime without shutting the application down. While layered software architectures may be implemented by assembling components, the way these components are wired together differs. In this paper we present our solution of Dependecy Injection, which allows to build highly decoupled Eclipse applications in order to implement real separation of concerns by systemically applying Aspect Oriented Programming and the Model-View-Presenter pattern, a variant of the classic Model-View-Controller. Keywords: Eclipse, Aspect Oriented Programming, Dependency Injection. 1 Introduction The Dependency Inversion Principle [19] (DIP) states that (both high and low level) software parts should not depend on each other’s concrete implementation but, instead, be based on a common set of shared abstractions: one application of the DIP is the Dependency Injection, also called Inversion of Control (IoC) [11]. From an architectural perspective, DI allows to explicit the dependencies between software components and provides a way to break the normal coupling between a system under test and its dependencies during automated testing [25]. This is possible because the software is composed by aggregating simpler, loosely coupled objects that are more easily unit-testable [32]. Additionally, by separating the clients by their dependencies, we also make their code simpler because there is no need for them to search for their collaborators. -
Static Versus Dynamic Polymorphism When Implementing Variability in C++
Static Versus Dynamic Polymorphism When Implementing Variability in C++ by Samer AL Masri A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science Department of Computing Science University of Alberta c Samer AL Masri, 2018 Abstract Software Product Line Engineering (SPLE) creates configurable platforms that can be used to efficiently produce similar, and yet different, product vari- ants. To implement SPLs, multiple variability implementation mechanisms have been suggested, including polymorphism. In this thesis, we talk about the trade-offs of using static versus dynamic polymorphism through a case study of IBM’s open-source Eclipse OMR project. Eclipse OMR is an open-source C++ framework for building robust lan- guage runtimes. To support the diverse languages and architectures targeted by the framework, OMR’s variability implementation uses a combination of build-system variability and static polymorphism. OMR developers now real- ize that their current static polymorphism implementation has its drawbacks and are considering using dynamic polymorphism instead. In order to study the trade-offs of using different kinds of polymorphism in OMR, it is crucial to collect function information and overload/override statistics about the current code base. Hence, we create OMRStatistics,a static analysis tool that collects such information about OMR’s source code. Using the information provided by OMRStatistics, OMR developers can make better design decisions on which variability extension points should be switched from static polymorphism to dynamic polymorphism. In addition, we report on our first hand experience of changing the poly- morphism used in OMR’s variability implementation mechanism from static to dynamic, the challenges we faced in the process, and how we overcame them. -
Oracle FLEXCUBE Private Banking Release Notes
Product Release Notes Oracle FLEXCUBE Private Banking Release 12.1.0.0.0 [April] [2016] Product Release Notes Table of Contents 1. INTRODUCTION ........................................................................................................................................... 1-1 1.1 PURPOSE ..................................................................................................................................................... 1-1 1.2 BACKGROUND/ENVIRONMENT ................................................................................................................... 1-1 1.3 THIRD PARTY SOFTWARE DETAILS ............................................................................................................ 1-2 1.4 RELEASE CONTENTS ................................................................................................................................... 1-4 1.5 PRODUCT DOCUMENTATION ....................................................................................................................... 1-5 2. COMPONENTS OF THE RELEASE ........................................................................................................... 2-1 2.1 DOCUMENTS ACCOMPANYING THE SOFTWARE ............................................................................................ 2-1 2.2 SOFTWARE COMPONENTS ........................................................................................................................... 2-1 1. Introduction 1.1 Purpose Purpose of this Release Note is to highlight the -
Eclipse Governance Structure
Eclipse Governance Structure Board of Directors A p p rov es S trateg y , P lans, P olicies E clip se M anag em ent O rg aniz ation E stab lish es th e R oadm ap , Bu ilds th e P latform , Deliv ers th e V ision R eq u irem ents C ou ncil P rop oses T h em es M em b ersh ip at L arg e & P riorities A p p rov es V ision, By law s Bu ilds th e E cosy stem P lanning C ou ncil A rch itectu re C ou ncil E stab lish es P latform Defines & M aintains R elease P lan A rch itectu re S u b com m ittee A S u b com m ittee B P M C 1 P M C 2 P M C 3 P M C 4 P M C 4 P M C 5 P M C 6 P M C 7 Project Management Committees Eclipse Foundation, Inc. Eclipse Development Roadmap ° http://www.eclipse.org/org/councils/roadmap.html ° Communicate the direction and timetable of the Eclipse projects ° Solicits for input from key stakeholders ° Create an open predictable environment to enable planning for commercial adoption ° Predictable schedule of new releases ° Understand technology direction ° Eclipse Roadmap consists of: ° Themes and Priorities ° Schedules ° Architecture Plan ° Will be update every 6 months ° First iteration done March 2005 Eclipse Foundation, Inc. Eclipse Roadmap: Development Councils Strategic Members PMC T&P’s Requirements Council Add-in Providers Market research T h P e r m io e ri s & ti s e & e s s e m ti e ri h o T ri P Platform Release Planning Architecture Council Architecture Plan Council P P M M C C P A l r a c n h s Eclipse Foundation, Inc. -
RCP Applications
Helios Wayne Beaton The Eclipse Foundation Copyright © 2010 Eclipse Foundation, Inc., Made available under the Eclipse Public License v 1.0 What is Eclipse? Copyright © 2010 Eclipse Foundation, Inc., Made available under the Eclipse Public License v 1.0 Eclipse is a Java IDE .Language-aware editors, views, ¼ .Refactoring support .Integrated unit testing and debugging .Incremental compilation and build .Team development support Copyright © 2010 Eclipse Foundation, Inc., Made available under the Eclipse Public License v 1.0 3 Eclipse is an IDE Framework .Eclipse + JDT = Java IDE . First class framework for Java, language aware editor, incremental build, integrated debugging, ... .Eclipse + CDT = C/C++ IDE . First class framework for C/C++, language aware editor, refactoring, search .Eclipse + PDT = PHP IDE .Eclipse + JDT + CDT + PDT = Java, C/C++, PHP IDE . Ruby, TCL, JavaScript, ... Copyright © 2010 Eclipse Foundation, Inc., Made available under the Eclipse Public License v 1.0 4 Eclipse is a Tools Framework .Plug-ins make Eclipse whatever you need it to be .Platform of frameworks and exemplary tools .Tools extend the platform using bundles/plug-ins . Business Intelligence and Reporting Tools, Web Tools, Data Tools, Eclipse Modeling Framework, ... Copyright © 2010 Eclipse Foundation, Inc., Made available under the Eclipse Public License v 1.0 5 Eclipse is a Application Framework .Remove the IDE elements; you're left with a general-purpose application framework . Linux, Windows, Mac OSX, UNIX, embedded . Rich widget set, graphics . Native-OS integration (drag and drop, OLE/XPCOM integration) .A platform for rich clients Copyright © 2010 Eclipse Foundation, Inc., Made available under the Eclipse Public License v 1.0 6 Eclipse is Runtimes! .Remove the UI elements and you©re left with a general-purpose component model . -
Creating a Modular Aspectj Foundation for Simple and Rapid Extension Implementation By
Creating a Modular AspectJ Foundation for Simple and Rapid Extension Implementation by Hristofor Mirche E!I FM" E#AMI$A"I%$ C%MMI""EE dr& C&M& 'oc(isch prof&dr&ir& M& A(sit )*&*+&,*-. Abstract "he current state of aspect/oriented programming 0A%1) has raised concerns regarding arious limitations that A%1 languages ha e& "he issue is that A%1 languages are not robust enough 3hen the basis program is changed& "here are many ne3 proposals for A%1 languages 3ith ne3 features that attempt to restrict or gi e more expressi eness to the programmer in order to force a ne3 context 3here the problems can be mitigated& Some of those languages are designed as extensions of AspectJ. Existing open AspectJ compilers can be used for implementing such an extension, but this can 5uic(ly become a complicated task of extending the complex processes of lexing4 parsing and 3ea ing4 of 3hich the compilers o6er lo3/le el abstractions& "hus4 there is a need for an easily extensible AspectJ foundation for a simpler and faster de elopment of language extensions& !e ha e de eloped such a foundation and in this thesis 3e describe the design of the implementation. !e pro ide an o er ie3 of a testing process to determine its alidity& Finally4 3e implement one proposal for an AspectJ extension and e aluate the extensibility and ease of use of our foundation in comparison to other existing AspectJ compilers& -& Introduction Moti ation& An easy approach to implement an aspect/oriented language 3ould be to extend an existing A%P compiler& "his is not al3ays the best approach4 -
EMF-REST: Generation of Restful Apis from Models
EMF-REST: Generation of RESTful APIs from Models Hamza Ed-douibi, Javier Luis Cánovas Izquierdo, Abel Gómez, Massimo Tisi, Jordi Cabot AtlanMod team (Inria, Mines Nantes, LINA), Nantes, France {hamza.ed-douibi,javier.canovas,abel.gomez-llana, massimo.tisi,jordi.cabot}@inria.fr Abstract. In the last years, RESTful Web services have become more and more popular as a lightweight solution to connect remote systems in distributed and Cloud-based architectures. However, being an architectural style rather than a specification or standard, the proper design of RESTful Web services is not triv- ial since developers have to deal with a plethora of recommendations and best practices. Model-Driven Engineering (MDE) emphasizes the use of models and model trans- formations to raise the level of abstraction and semi-automate the development of software. In this paper we present an approach that leverages on MDE tech- niques to generate RESTful services. The approach, called EMF-REST, takes EMF data models as input and generates Web APIs following the REST princi- ples and relying on well-known libraries and standards, thus facilitating its com- prehension and maintainability. Additionally, EMF-REST integrates model and Web-specific features to provide model validation and security capabilities, re- spectively, to the generated API. For Web developers, our approach brings more agility to the Web development process by providing ready-to-run-and-test Web APIs out of data models. Also, our approach provides MDE practitioners the ba- sis to develop Cloud-based modeling solutions as well as enhanced collaborative support. 1 Introduction Web services have increasingly become popular mainly because they simplify clien- t/server decoupling and foster interoperability. -
Developing Java™ Web Applications
ECLIPSE WEB TOOLS PLATFORM the eclipse series SERIES EDITORS Erich Gamma ■ Lee Nackman ■ John Wiegand Eclipse is a universal tool platform, an open extensible integrated development envi- ronment (IDE) for anything and nothing in particular. Eclipse represents one of the most exciting initiatives hatched from the world of application development in a long time, and it has the considerable support of the leading companies and organ- izations in the technology sector. Eclipse is gaining widespread acceptance in both the commercial and academic arenas. The Eclipse Series from Addison-Wesley is the definitive series of books dedicated to the Eclipse platform. Books in the series promise to bring you the key technical information you need to analyze Eclipse, high-quality insight into this powerful technology, and the practical advice you need to build tools to support this evolu- tionary Open Source platform. Leading experts Erich Gamma, Lee Nackman, and John Wiegand are the series editors. Titles in the Eclipse Series John Arthorne and Chris Laffra Official Eclipse 3.0 FAQs 0-321-26838-5 Frank Budinsky, David Steinberg, Ed Merks, Ray Ellersick, and Timothy J. Grose Eclipse Modeling Framework 0-131-42542-0 David Carlson Eclipse Distilled 0-321-28815-7 Eric Clayberg and Dan Rubel Eclipse: Building Commercial-Quality Plug-Ins, Second Edition 0-321-42672-X Adrian Colyer,Andy Clement, George Harley, and Matthew Webster Eclipse AspectJ:Aspect-Oriented Programming with AspectJ and the Eclipse AspectJ Development Tools 0-321-24587-3 Erich Gamma and -
Flexibility at the Roots of Eclipse
6°ÊÈ >ʽäÇ Dynamic Wizard Modeling with GMF Introduction to the Using GMF to Build a Dynamic Wizard Generic Eclipse Framework and a Graphical Editor Modeling System Developing a Deploying the BIRT Graphical Modeling Viewer to JBoss Tool for Eclipse Disseminate Report Content to an Application Server Subversive The Eclipse Enabling Plug-In for Integration and Subversion Interoperability for Eclipse based Development An Introduction to the Corona Project Flexibility at the Roots of Eclipse Solving the GUI Dilemma: SWTSwing and Eclipse on Swing 6°ÊÈ >ʽäÇ Vol.6 January 2007 Dynamic Wizard Modeling with GMF Introduction to the Using GMF to Build a Dynamic Wizard Generic Eclipse Table of Contents Framework and a Graphical Editor Modeling System Developing a Deploying the BIRT Graphical Modeling Viewer to JBoss Tool for Eclipse Disseminate Report Content to an Application Server Subversive The Eclipse Enabling Plug-In for Integration and Subversion FEATURES Interoperability for Eclipse based Development An Introduction to the Corona Project Flexibility at the Roots of Eclipse 29 Flexibility at the Roots of Eclipse Solving the GUI Dilemma: SWTSwing and Eclipse on Solving the GUI Dilemma: Swing SWTSwing and Eclipse on Swing No trench in the world of Java is deeper then that between SWT and Swing or Eclipse and Sun. Unity is only found in the knowledge that everybody suff ers from this argument. But how to end this almost religious battle over the righteous GUI-toolkit? How to bang their heads together if they only know DEPARTMENT one point of view—for them or against them! Th e sister projects SWTSwing and Eclipse on Swing News & Trends (EOS) achieve this trick.