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This thesis presents an analysis of API usage in a large corpus of Java software retrieved from the open source repositories hosted at SourceForge. Most larger software projects use software libraries, which offer a public "application programming interface" or API as an interface for the programmer. In order to facilitate the transition between different APIs, there are emerging research projects in the field of automated API migration. However, there is a lack of basic statistical background information about in-the-wild usage of APIs as such measurements have, until now, only been done on rather small corpora. We thus present an analysis method suitable for measurements with large corpora. First, we create a corpus of open source projects hosted on SourceForge, as well as a corpus of software libraries. Then, all projects in the corpus are compiled with an instrumented compiler. We use a compiler plugin for javac that gives detailed information about every method created by the compiler. This information is stored in a database and analyzed.
Aspect-orientation in PHP
(2012)
Diese Diplomarbeit hat das Thema der fehlenden Cross-Cutting-Concerns(CCCs)-Unterstützung in PHP zum Inhalt. Die Basis bilden zu definierende Anforderungen an eine AOP-Realisierung im PHP-Umfeld. Es wird analysiert, wie und ob verwandte Sprachen und Paradigmen es gestatten, CCCs zu unterstützen. Darüber hinaus wird die Möglichkeit erörtert, AOP in PHP ohne PHP-Erweiterung zu realisieren. Weiter werden die bisherigen Ansätze, AOP in PHP umzusetzen, qualitativ untersucht. Die vorliegende Arbeit zielt darauf ab, eine eigene AOP-PHP-Lösung zu präsentieren, die nicht die Schwächen existierender Lösungen teilt.
