public Object call(
final Context cx, final Scriptable scope, final Scriptable thisObj, final Object[] args) {
JavaObjectWrapper jcw = (JavaObjectWrapper) thisObj;
Method method = this.getBestMethod(args);
if (method == null) {
throw new EvaluatorException(
"No method matching "
+ this.className
+ " with "
+ (args == null ? 0 : args.length)
+ " arguments.");
}
Class[] actualArgTypes = method.getParameterTypes();
int numParams = actualArgTypes.length;
Object[] actualArgs = args == null ? new Object[0] : new Object[numParams];
boolean linfo = loggableInfo;
if (linfo) {
Object javaObject = jcw.getJavaObject();
logger.info(
"call(): Calling method "
+ method.getName()
+ " on object "
+ javaObject
+ " of type "
+ this.getTypeName(javaObject));
}
JavaScript manager = JavaScript.getInstance();
for (int i = 0; i < numParams; i++) {
Object arg = args[i];
Object actualArg = manager.getJavaObject(arg, actualArgTypes[i]);
if (linfo) {
logger.info(
"call(): For method="
+ method.getName()
+ ": Converted arg="
+ arg
+ " (type="
+ this.getTypeName(arg)
+ ") into actualArg="
+ actualArg
+ ". Type expected by method is "
+ actualArgTypes[i].getName()
+ ".");
}
actualArgs[i] = actualArg;
}
try {
Object raw = method.invoke(jcw.getJavaObject(), actualArgs);
return manager.getJavascriptObject(raw, scope);
} catch (IllegalAccessException iae) {
throw new IllegalStateException("Unable to call " + this.className + ".", iae);
} catch (InvocationTargetException ite) {
throw new WrappedException(
new InvocationTargetException(
ite.getCause(),
"Unable to call " + this.className + " on " + jcw.getJavaObject() + "."));
} catch (IllegalArgumentException iae) {
StringBuffer argTypes = new StringBuffer();
for (int i = 0; i < actualArgs.length; i++) {
if (i > 0) {
argTypes.append(", ");
}
argTypes.append(actualArgs[i] == null ? "<null>" : actualArgs[i].getClass().getName());
}
throw new WrappedException(
new IllegalArgumentException(
"Unable to call " + this.className + ". Argument types: " + argTypes + ".", iae));
}
}
