/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.web.jersey.util;
import java.util.HashMap;
import java.util.concurrent.ConcurrentHashMap;
import javax.xml.bind.annotation.XmlRootElement;
public class PolymorphicClassCache {
private static final ConcurrentHashMap<Class<?>, Class<?>> TO_PROXY_CLASS_MAP = new ConcurrentHashMap<>();
private static final ConcurrentHashMap<Class<?>, Class<?>> FROM_PROXY_CLASS_MAP = new ConcurrentHashMap<>();
private static final ConcurrentHashMap<Class<?>, HashMap<String, Class<?>>> SUB_CLASS_MAP = new ConcurrentHashMap<>();
public static Class<?> getPolymorphicSubClass (Class<?> baseClass, String polymorphicKey) {
HashMap<String, Class<?>> polymorphicKeyMap;
if ((polymorphicKeyMap = SUB_CLASS_MAP.get(baseClass)) == null) {
synchronized (SUB_CLASS_MAP) {
if ((polymorphicKeyMap = SUB_CLASS_MAP.get(baseClass)) == null) {
XmlPolymorphicSubClasses xmlPolymorphicSubClassesAnnotation;
if ((xmlPolymorphicSubClassesAnnotation = baseClass.getAnnotation(XmlPolymorphicSubClasses.class)) == null) {
throw new JAXBProcessingException("The class(%s) is missing a %s annotation", baseClass.getName(), XmlPolymorphicSubClasses.class.getSimpleName());
} else {
SUB_CLASS_MAP.put(baseClass, polymorphicKeyMap = new HashMap<>());
for (Class<?> polymorphicSubClass : xmlPolymorphicSubClassesAnnotation.value()) {
XmlRootElement xmlRootElementAnnotation;
if ((xmlRootElementAnnotation = polymorphicSubClass.getAnnotation(XmlRootElement.class)) == null) {
throw new JAXBProcessingException("The sub-class(%s) is missing a %s annotation", polymorphicSubClass.getName(), XmlRootElement.class.getSimpleName());
}
polymorphicKeyMap.put(xmlRootElementAnnotation.name(), polymorphicSubClass);
}
}
}
}
}
return polymorphicKeyMap.get(polymorphicKey);
}
public static void addClassRelationship (Class<?> polymorphicSubClass, Class<?> proxySubClass) {
TO_PROXY_CLASS_MAP.putIfAbsent(polymorphicSubClass, proxySubClass);
FROM_PROXY_CLASS_MAP.putIfAbsent(proxySubClass, polymorphicSubClass);
}
public static Class<?> getProxyClassForPolymorphicClass (Class<?> polymorphicSubClass) {
return TO_PROXY_CLASS_MAP.get(polymorphicSubClass);
}
public static Class<?> getPolymorphicClassForProxyClass (Class<?> proxySubClass) {
return FROM_PROXY_CLASS_MAP.get(proxySubClass);
}
}