/*
* Copyright 2013 Chris Pheby
*
* 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.jadira.reflection.cloning.implementor.types;
import java.util.IdentityHashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.jadira.reflection.cloning.api.CloneDriver;
import org.jadira.reflection.cloning.api.CloneImplementor;
/**
* A Clone Implementor that can handle ConcurrentHashMap
*/
public class ConcurrentHashMapImplementor implements CloneImplementor {
@SuppressWarnings({ "rawtypes", "unchecked" })
@Override
public <T> T clone(T obj, CloneDriver parentContext, IdentityHashMap<Object, Object> referencesToReuse, long stackDepth) {
stackDepth++;
final ConcurrentHashMap<Object, Object> source = (ConcurrentHashMap) obj;
final ConcurrentHashMap copy = new ConcurrentHashMap();
for (final Map.Entry e : source.entrySet()) {
final Object key = parentContext.clone(e.getKey(), parentContext, referencesToReuse, stackDepth);
final Object value = parentContext.clone(e.getValue(), parentContext, referencesToReuse, stackDepth);
copy.put(key, value);
}
return (T) copy;
}
@Override
public boolean canClone(Class<?> clazz) {
return ConcurrentHashMap.class.equals(clazz);
}
@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
public <T> T newInstance(Class<T> c) {
if (canClone(c)) {
return (T) new ConcurrentHashMap();
} else {
throw new IllegalStateException("Cannot create new instance for: " + c.getName());
}
}
}