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package org.glassfish.weld.util;
import org.glassfish.weld.ACLSingletonProvider;
import org.jboss.weld.bootstrap.api.SingletonProvider;
import org.jboss.weld.bootstrap.api.helpers.TCCLSingletonProvider;
public class Util {
public static <T> T newInstance(String className) {
try {
return Util.<T>classForName(className).newInstance();
} catch (InstantiationException e) {
throw new IllegalArgumentException("Cannot instantiate instance of " + className + " with no-argument constructor", e);
} catch (IllegalAccessException e) {
throw new IllegalArgumentException("Cannot instantiate instance of " + className + " with no-argument constructor", e);
}
}
public static <T> Class<T> classForName(String name) {
try {
if (Thread.currentThread().getContextClassLoader() != null) {
Class<?> c = Thread.currentThread().getContextClassLoader().loadClass(name);
@SuppressWarnings("unchecked")
Class<T> clazz = (Class<T>) c;
return clazz;
} else {
Class<?> c = Class.forName(name);
@SuppressWarnings("unchecked")
Class<T> clazz = (Class<T>) c;
return clazz;
}
} catch (ClassNotFoundException e) {
throw new IllegalArgumentException("Cannot load class for " + name, e);
} catch (NoClassDefFoundError e) {
throw new IllegalArgumentException("Cannot load class for " + name, e);
}
}
public static void initializeWeldSingletonProvider() {
boolean earSupport = false;
try {
Class.forName("org.glassfish.javaee.full.deployment.EarClassLoader");
earSupport = true;
} catch (ClassNotFoundException ignore) {
}
SingletonProvider.initialize(earSupport ? new ACLSingletonProvider() : new TCCLSingletonProvider());
}
}