/*
* 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.gson;
import com.google.common.collect.Lists;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonParseException;
import org.terasology.persistence.typeHandling.DeserializationContext;
import org.terasology.persistence.typeHandling.DeserializationException;
import org.terasology.persistence.typeHandling.PersistedData;
import java.util.List;
/**
*/
public class GsonDeserializationContext implements DeserializationContext {
private JsonDeserializationContext context;
public GsonDeserializationContext(JsonDeserializationContext context) {
this.context = context;
}
@Override
public <T> T deserializeAs(PersistedData data, Class<T> type) {
GsonPersistedData gsonData = (GsonPersistedData) data;
try {
return context.deserialize(gsonData.getElement(), type);
} catch (JsonParseException jpe) {
throw new DeserializationException("Failed to deserialize data as " + type, jpe);
}
}
@Override
public <T> List<T> deserializeCollection(PersistedData data, Class<T> type) {
if (!data.isArray()) {
throw new IllegalStateException("Data is not an array");
}
List<T> result = Lists.newArrayList();
for (PersistedData item : data.getAsArray()) {
result.add(deserializeAs(item, type));
}
return result;
}
}