/**
* Wraps a method as a JavaScript function.
*
* @param methodName the name of the method to wrap
* @param clazz the class declaring the method
* @param parameterTypes the types of the method's parameter
* @throws NoSuchMethodException if the method is no found
*/
MethodWrapper(final String methodName, final Class<?> clazz, final Class<?>[] parameterTypes)
throws NoSuchMethodException {
clazz_ = clazz;
method_ = clazz.getMethod(methodName, parameterTypes);
jsTypeTags_ = new int[parameterTypes.length];
int i = 0;
for (final Class<?> klass : parameterTypes) {
jsTypeTags_[i++] = FunctionObject.getTypeTag(klass);
}
}
/**
* Converts js arguments to java arguments
*
* @param context the current context
* @param scope the current scope
* @param jsArgs the JavaScript arguments
* @return the java arguments
*/
Object[] convertJSArgsToJavaArgs(
final Context context, final Scriptable scope, final Object[] jsArgs) {
if (jsArgs.length != jsTypeTags_.length) {
throw Context.reportRuntimeError(
"Bad number of parameters for function "
+ method_.getName()
+ ": expected "
+ jsTypeTags_.length
+ " got "
+ jsArgs.length);
}
final Object[] javaArgs = new Object[jsArgs.length];
int i = 0;
for (final Object object : jsArgs) {
javaArgs[i] = FunctionObject.convertArg(context, scope, object, jsTypeTags_[i++]);
}
return javaArgs;
}
/**
* finishInit
*
* @param scope
* @param constructor
* @param prototype
*/
public static void finishInit(
Scriptable scope, FunctionObject constructor, Scriptable prototype) {
constructor.defineProperty("separator", java.io.File.separator, READONLY | PERMANENT);
}