org.jboss.marshalling.reflect.ReflectiveCreator Maven / Gradle / Ivy
Go to download
This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
The newest version!
/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.marshalling.reflect;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.security.Permission;
import java.io.InvalidClassException;
import java.io.SerializablePermission;
import org.jboss.marshalling.Creator;
/**
* A creator that simply uses reflection to locate and invoke a zero-argument constructor.
*
* @deprecated This class is no longer used and will be removed in a future version.
*/
@Deprecated
public class ReflectiveCreator implements Creator {
private static final Permission CREATOR_PERM = new SerializablePermission("creator");
private static final SerializableClassRegistry registry = SerializableClassRegistry.getInstanceUnchecked();
public ReflectiveCreator() {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(CREATOR_PERM);
}
}
/**
* Get the constructor to use for a class. Returns {@code null} if no suitable constructor is available.
*
* @param clazz the class to get a constructor for
* @return the constructor, or {@code null} if none is available
*/
protected Constructor getNewConstructor(final Class clazz) {
return registry.lookup(clazz).getNoArgConstructor();
}
/** {@inheritDoc} */
public T create(final Class clazz) throws InvalidClassException {
final Constructor constructor = getNewConstructor(clazz);
try {
return constructor.newInstance();
} catch (InvocationTargetException e) {
final InvalidClassException ice = new InvalidClassException(clazz.getName(), "Constructor threw an exception");
ice.initCause(e);
throw ice;
} catch (IllegalAccessException e) {
throw new InvalidClassException(clazz.getName(), "Illegal access exception occurred accessing the constructor: " + String.valueOf(e));
} catch (InstantiationException e) {
throw new InvalidClassException(clazz.getName(), "Instantiation exception: " + String.valueOf(e));
}
}
}