/*
* Copyright (C) 2011 Benoit GUEROUT <bguerout at gmail dot com> and Yves AMSELLEM <amsellem dot yves at gmail dot com>
*
* 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.jongo;
import com.mongodb.DBObject;
import org.jongo.bson.Bson;
import org.jongo.bson.BsonDocument;
import org.jongo.marshall.Unmarshaller;
class ResultHandlerFactory {
public static <T> ResultHandler<T> newResultHandler(final Class<T> clazz, final Unmarshaller unmarshaller) {
return new UnmarshallingResultHandler<T>(unmarshaller, clazz);
}
private static class UnmarshallingResultHandler<T> implements ResultHandler<T> {
private final Unmarshaller unmarshaller;
private final Class<T> clazz;
public UnmarshallingResultHandler(Unmarshaller unmarshaller, Class<T> clazz) {
this.unmarshaller = unmarshaller;
this.clazz = clazz;
}
public T map(DBObject result) {
BsonDocument bsonDocument = Bson.createDocument(result);
return unmarshaller.unmarshall(bsonDocument, clazz);
}
}
private ResultHandlerFactory() {
}
}