migrator-aggregatetransformerreceiver.tex

\begin{lstlisting}[language=Java, label=atr, caption={Metodene \emph{addTransformer} og \emph{aggregateTransformerReceiver}.}]
private void addTransformer(AbstractAggregateTransformer t) { this.transformers.put(t.getAppVersion(), t); }

private void aggregateTransformerReceiver() {
    if ( this.transformers.size() < 1 ) {
        try {
            Path path = Paths.get( "classes/transformer/" + this.className.replace(".","/") + ".class").toAbsolutePath();
            if (Files.exists(path)) {
                byte[] classData = Files.readAllBytes(path);
                Class<?> c = loader.createClass(this.className, classData);
                Constructor cons = c.getConstructor(String.class, String.class);
                AbstractAggregateTransformer tran = (AbstractAggregateTransformer) cons.newInstance( "x", "y" );
                this.addTransformer(tran);
                log("INFO @ " + this.dateFormat.format(new Date()) + " - Received aggregate transformer for schema " + tran.getAppVersion() + "\n");
            }
        } catch (Exception e) {
            e.printStackTrace();
            log("ERROR @ " + this.dateFormat.format(new Date()) + " " + e.toString() + "\n");
        }
    }
}
\end{lstlisting}