protected void evalBaseResource(String resourceName) throws IOException {
Context evalContext = this.beginEvalContext(session.getBaseNamespaceEnv());
InputStream in = getClass().getResourceAsStream(resourceName);
if (in == null) {
throw new IOException("Could not load resource '" + resourceName + "'");
}
Reader reader = new InputStreamReader(in);
try {
evalContext.evaluate(RParser.parseSource(reader));
} finally {
reader.close();
}
}
private String evaluate(String script) throws IOException {
AetherPackageLoader aetherLoader = new AetherPackageLoader();
aetherLoader.setTransferListener(new ConsoleTransferListener());
aetherLoader.setRepositoryListener(new ConsoleRepositoryListener(System.out));
Session session =
new SessionBuilder()
.bind(ClassLoader.class, aetherLoader.getClassLoader())
.bind(PackageLoader.class, aetherLoader)
.build();
ExpressionVector sexp = RParser.parseAllSource(new StringReader(script));
SEXP result = session.getTopLevelContext().evaluate(sexp);
if (result instanceof StringVector) {
return ((StringVector) result).getElementAsString(0);
} else {
throw new AssertionError("Expected string, got: " + result);
}
}