/**
* Copy from the copy method in StructUtil. Did not want to drag that code in. maybe this actually
* should go to struct.
*
* @param from
* @param to
* @param excludes
* @return
* @throws Exception
*/
public static <T extends struct> T xcopy(struct from, T to, String... excludes) throws Exception {
Arrays.sort(excludes);
for (Field f : from.fields()) {
if (Arrays.binarySearch(excludes, f.getName()) >= 0) continue;
Object o = f.get(from);
if (o == null) continue;
Field tof = to.getField(f.getName());
if (tof != null)
try {
tof.set(to, Converter.cnv(tof.getGenericType(), o));
} catch (Exception e) {
System.out.println(
"Failed to convert "
+ f.getName()
+ " from "
+ from.getClass()
+ " to "
+ to.getClass()
+ " value "
+ o
+ " exception "
+ e);
}
}
return to;
}
@SuppressWarnings({"unchecked", "rawtypes"})
public static Object invoke(Object target, Method method, boolean strict, Object... args) {
try {
Object[] params;
Class<?>[] paramTypes = method.getParameterTypes();
if (paramTypes.length == 0) {
params = null;
} else if (args.length == paramTypes.length) {
// map one to one
if (strict) {
params = args;
} else {
params = new Object[paramTypes.length];
for (int i = 0; i < paramTypes.length; i++) {
Object arg = args[i];
if (arg == null) params[i] = null;
else {
Converter converter =
ConverterManager.getInstance().createConverter(arg.getClass(), paramTypes[i]);
params[i] = converter.convert(arg);
}
}
}
} else {
// map varargs
params = new Object[paramTypes.length];
for (int i = 0; i < paramTypes.length - 1; i++)
params[i] = (strict ? args[i] : AnyConverter.convert(args[i], paramTypes[i]));
Class<?> varargsComponentType = paramTypes[paramTypes.length - 1].getComponentType();
Object varargs =
Array.newInstance(varargsComponentType, args.length - paramTypes.length + 1);
for (int i = 0; i < args.length - paramTypes.length + 1; i++) {
Object param = args[paramTypes.length - 1 + i];
if (strict) param = AnyConverter.convert(param, varargsComponentType);
Array.set(varargs, i, param);
}
params[params.length - 1] = varargs;
}
return method.invoke(target, params);
} catch (IllegalAccessException e) {
throw ExceptionMapper.configurationException(e, method);
} catch (InvocationTargetException e) {
throw ExceptionMapper.configurationException(e, method);
}
}