/**
* Invokes the method, adjusting arguments as required.
*
* <p>That is:
*
* <ul>
* <li>if the method declares parameters but no arguments are provided, then will provide 'null'
* defaults for these.
* <li>if the method does not declare parameters but arguments were provided, then will ignore
* those argumens.
* </ul>
*/
@SuppressWarnings("unused")
private static Object invokeWithDefaults(
final Method method, final ObjectAdapter adapter, final ObjectAdapter[] argumentAdapters) {
final int numParams = method.getParameterTypes().length;
ObjectAdapter[] adapters;
if (argumentAdapters == null || argumentAdapters.length == 0) {
adapters = new ObjectAdapter[numParams];
} else if (numParams == 0) {
// ignore any arguments, even if they were supplied.
// eg used by contributee actions, but
// underlying service 'default' action declares no params
adapters = new ObjectAdapter[0];
} else if (argumentAdapters.length == numParams) {
adapters = argumentAdapters;
} else {
throw new IllegalArgumentException(
"Method has "
+ numParams
+ " params but "
+ argumentAdapters.length
+ " arguments provided");
}
return AdapterInvokeUtils.invoke(method, adapter, adapters);
}
/**
* Invokes the method, adjusting arguments as required to make them fit the method's parameters.
*
* <p>That is:
*
* <ul>
* <li>if the method declares parameters but arguments are missing, then will provide 'null'
* defaults for these.
* <li>if the method does not declare all parameters for arguments, then truncates arguments.
* </ul>
*/
public static Object invokeAutofit(
final Method method,
final ObjectAdapter target,
List<ObjectAdapter> argumentsIfAvailable,
final AdapterManager adapterManager) {
final List<ObjectAdapter> args = Lists.newArrayList();
if (argumentsIfAvailable != null) {
args.addAll(argumentsIfAvailable);
}
adjust(method, args, adapterManager);
final ObjectAdapter[] argArray = args.toArray(new ObjectAdapter[] {});
return AdapterInvokeUtils.invoke(method, target, argArray);
}