public <T> T newPlugin(Class<T> iface, PluginType type) throws PluginSourceNotMatchException {
String name = type.getName();
String category;
if (InputPlugin.class.isAssignableFrom(iface)) {
category = "input";
} else if (OutputPlugin.class.isAssignableFrom(iface)) {
category = "output";
} else if (ParserPlugin.class.isAssignableFrom(iface)) {
category = "parser";
} else if (FormatterPlugin.class.isAssignableFrom(iface)) {
category = "formatter";
} else if (DecoderPlugin.class.isAssignableFrom(iface)) {
category = "decoder";
} else if (EncoderPlugin.class.isAssignableFrom(iface)) {
category = "encoder";
} else if (FilterPlugin.class.isAssignableFrom(iface)) {
category = "filter";
} else if (GuessPlugin.class.isAssignableFrom(iface)) {
category = "guess";
} else if (ExecutorPlugin.class.isAssignableFrom(iface)) {
category = "executor";
} else {
// unsupported plugin category
throw new PluginSourceNotMatchException(
"Plugin interface " + iface + " is not supported in JRuby");
}
String methodName = "new_java_" + category;
try {
return jruby.callMethod(rubyPluginManager, methodName, name, iface);
} catch (InvokeFailedException ex) {
throw new PluginSourceNotMatchException(ex.getCause());
}
}
private void setupJRuby(Activity startActivity) {
System.setProperty("jruby.bytecode.version", "1.5");
// enable proxy classes
System.setProperty(
"jruby.ji.proxyClassFactory", "com.rickbutton.rubydroid.DalvikProxyClassFactory");
System.setProperty("jruby.ji.upper.case.package.name.allowed", "true");
System.setProperty("jruby.class.cache.path", appContext.getDir("dex", 0).getAbsolutePath());
// setup jruby home
String apkName = getApkName();
String jrubyHome = "file:" + apkName + "!/jruby.home";
System.setProperty("jruby.home", jrubyHome);
// configure jruby
System.setProperty("jruby.compile.mode", "OFF"); // OFF OFFIR JITIR? FORCE FORCEIR
// System.setProperty("jruby.compile.backend", "DALVIK");
System.setProperty("jruby.bytecode.version", "1.6");
System.setProperty("jruby.interfaces.useProxy", "true");
System.setProperty("jruby.management.enabled", "false");
System.setProperty("jruby.objectspace.enabled", "false");
System.setProperty("jruby.thread.pooling", "true");
System.setProperty("jruby.native.enabled", "false");
System.setProperty("jruby.ir.passes", "LocalOptimizationPass,DeadCodeElimination");
System.setProperty("jruby.backtrace.style", "normal"); // normal raw full mri
ClassLoader loader = new PathClassLoader(apkName, RubySystem.class.getClassLoader());
// disable gems
RubyInstanceConfig config = new RubyInstanceConfig();
config.setDisableGems(true);
config.setLoader(loader);
Ruby.newInstance(config);
container =
new ScriptingContainer(LocalContextScope.SINGLETON, LocalVariableBehavior.PERSISTENT);
container.setClassLoader(loader);
Thread.currentThread().setContextClassLoader(loader);
if (appContext.getFilesDir() != null) {
container.setCurrentDirectory(appContext.getFilesDir().getPath());
}
container.put("$package_name", appContext.getPackageName());
container.put("app_context", appContext);
container.put("system", this);
rubyContext = container.runScriptlet(PathType.CLASSPATH, "ruby/droid/init.rb");
Object mainActivity = container.get("MainActivity");
container.callMethod(rubyContext, "start_ruby_activity", mainActivity, startActivity);
}
public void stop() throws Exception {
try {
// We call the script with receiver = null - this causes the method to be called on the top
// level
// script
container.callMethod(null, "vertx_stop");
} catch (InvokeFailedException e) {
Throwable cause = e.getCause();
if (cause instanceof RaiseException) {
// Gosh, this is a bit long winded!
RaiseException re = (RaiseException) cause;
String msg = "(NoMethodError) undefined method `vertx_stop'";
if (re.getMessage().startsWith(msg)) {
// OK - method is not mandatory
return;
}
}
throw e;
}
}
public double rms() {
return (Double) rubyContainer.callMethod(waveform, "rms");
}
public WaveformWrapper(double[] points) {
Object waveformClass = rubyContainer.runScriptlet("Waveform");
waveform = rubyContainer.callMethod(waveformClass, "new", points);
}