org.bndly.common.mapper.CollectionMapperImpl Maven / Gradle / Ivy
package org.bndly.common.mapper;
/*-
* #%L
* Mapper
* %%
* Copyright (C) 2013 - 2020 Cybercon GmbH
* %%
* 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.
* #L%
*/
public abstract class CollectionMapperImpl implements CollectionMapper {
private final Class collectionType;
private final Class collectionElementType;
public CollectionMapperImpl(Class collectionType, Class collectionElementType) {
this.collectionType = collectionType;
this.collectionElementType = collectionElementType;
}
protected abstract CollectionTypeAdapter assertCollectionTypeAdapterExists(Object object);
protected abstract CollectionTypeAdapter assertCollectionTypeAdapterExists(Class type);
@Override
public Class getCollectionType() {
return collectionType;
}
@Override
public Class getElementType() {
return collectionElementType;
}
@Override
public void map(Object source, final Object target, MappingContext context, MappingState state) {
if (source != null && target != null) {
// map the source collection to the target collection
CollectionTypeAdapter sourceAdapter = assertCollectionTypeAdapterExists(source);
final CollectionTypeAdapter targetAdapter = assertCollectionTypeAdapterExists(target);
sourceAdapter.iterate(source, new CollectionTypeAdapter.IterationHandler() {
@Override
public void handle(Object entry, MappingState state) {
targetAdapter.addObjectToCollection(entry, target, state);
}
}, state);
}
}
}