/*
* Copyright 2013 MovingBlocks
*
* 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.terasology.persistence.typeHandling.coreTypes;
import com.google.common.collect.Lists;
import com.google.common.primitives.Doubles;
import org.terasology.persistence.typeHandling.DeserializationContext;
import org.terasology.persistence.typeHandling.PersistedData;
import org.terasology.persistence.typeHandling.PersistedDataArray;
import org.terasology.persistence.typeHandling.SerializationContext;
import org.terasology.persistence.typeHandling.TypeHandler;
import java.util.Collection;
import java.util.List;
/**
* @author Immortius <immortius@gmail.com>
*/
public class DoubleTypeHandler implements TypeHandler<Double> {
@Override
public PersistedData serialize(Double value, SerializationContext context) {
if (value != null) {
return context.create(value);
}
return context.createNull();
}
@Override
public Double deserialize(PersistedData data, DeserializationContext context) {
if (data.isNumber()) {
return data.getAsDouble();
}
return null;
}
@Override
public PersistedData serializeCollection(Collection<Double> value, SerializationContext context) {
return context.create(Doubles.toArray(value));
}
@Override
public List<Double> deserializeCollection(PersistedData data, DeserializationContext context) {
if (data.isArray()) {
PersistedDataArray array = data.getAsArray();
List<Double> result = Lists.newArrayListWithCapacity(array.size());
for (PersistedData item : array) {
if (item.isNumber()) {
result.add(item.getAsDouble());
} else {
result.add(null);
}
}
return result;
}
return Lists.newArrayList();
}
}