/*
* #%L
* FlatPack serialization code
* %%
* Copyright (C) 2012 Perka Inc.
* %%
* 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%
*/
package com.getperka.flatpack.codexes;
import javax.inject.Inject;
import com.getperka.flatpack.HasUuid;
import com.getperka.flatpack.ext.DeserializationContext;
import com.getperka.flatpack.ext.EntityDescription;
import com.getperka.flatpack.ext.JsonKind;
import com.getperka.flatpack.ext.SerializationContext;
import com.getperka.flatpack.ext.Type;
import com.getperka.flatpack.ext.TypeContext;
import com.google.gson.JsonElement;
/**
* Maps Class literals to their payload names and back.
*/
public class HasUuidClassCodex extends ValueCodex<Class<? extends HasUuid>> {
private TypeContext typeContext;
protected HasUuidClassCodex() {}
@Override
public Type describe() {
return new Type.Builder().withJsonKind(JsonKind.STRING).build();
}
@Override
public Class<? extends HasUuid> readNotNull(JsonElement element, DeserializationContext context)
throws Exception {
String name = element.getAsString();
EntityDescription entityDescription = typeContext.getEntityDescription(name);
return entityDescription == null ? null : entityDescription.getEntityType();
}
@Override
public void writeNotNull(Class<? extends HasUuid> object, SerializationContext context)
throws Exception {
context.getWriter().value(typeContext.describe(object).getTypeName());
}
@Inject
void inject(TypeContext typeContext) {
this.typeContext = typeContext;
}
}