/** Try to create a Java object using a one-string-param constructor. */
public static Object newStringConstructor(String type, String param) throws Exception {
Constructor c = Utils.getClass(type).getConstructor(String.class);
try {
return c.newInstance(param);
} catch (InvocationTargetException e) {
Throwable t = e.getTargetException();
if (t instanceof Exception) {
throw (Exception) t;
} else {
throw e;
}
}
}
/**
* This method attempts to create an object of the given "type" using the "value" parameter. e.g.
* calling createObjectFromString("java.lang.Integer", "10") will return an Integer object
* initialized to 10.
*/
public static Object createObjectFromString(String type, String value) throws Exception {
Object result;
if (primitiveToWrapper.containsKey(type)) {
if (type.equals(Character.TYPE.getName())) {
result = new Character(value.charAt(0));
} else {
result = newStringConstructor(((Class<?>) primitiveToWrapper.get(type)).getName(), value);
}
} else if (type.equals(Character.class.getName())) {
result = new Character(value.charAt(0));
} else if (Number.class.isAssignableFrom(Utils.getClass(type))) {
result = createNumberFromStringValue(value);
} else if (value == null || value.toString().equals("null")) {
// hack for null value
result = null;
} else {
// try to create a Java object using
// the one-string-param constructor
result = newStringConstructor(type, value);
}
return result;
}
