1 package net.sf.josceleton.commons.reflect;
2
3 import java.lang.reflect.Constructor;
4
5 import net.sf.josceleton.commons.exception.InvalidArgumentException;
6
7 import org.apache.commons.logging.Log;
8 import org.apache.commons.logging.LogFactory;
9
10 class DynamicInstantiatorImpl implements DynamicInstantiator {
11
12 private static final Log LOG = LogFactory.getLog(DynamicInstantiatorImpl.class);
13
14 DynamicInstantiatorImpl() {
15
16 }
17
18
19 @Override public final <T> T create(final ClassAdapter<T> clazz, final Object... arguments) {
20 LOG.debug("instantiate(clazz.name=" + clazz.getName() + ", arguments.length=" + arguments.length + ")");
21
22 for (int i = 0; i < arguments.length; i++) {
23 final Object currentArgument = arguments[i];
24 if(currentArgument == null) {
25 throw InvalidArgumentException.newNotNull("arguments[]@" + i);
26 }
27 }
28
29 final Constructor<T> constructor = ReflectUtil.findConstructor(clazz, arguments);
30
31 try {
32 return constructor.newInstance(arguments);
33
34
35 } catch (final Exception e) {
36 throw DynamicInstantiationException.newForInstantiation(clazz, arguments, e);
37 }
38 }
39
40 }