com.getperka.flatpack.codexes.ToStringCodex Maven / Gradle / Ivy
/*
* #%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 java.io.IOException;
import java.lang.reflect.Constructor;
import com.getperka.flatpack.ext.DeserializationContext;
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.getperka.flatpack.ext.TypeHint;
import com.google.gson.JsonElement;
/**
* Attempts to handle any value-like object that has a public, one-arg constructor that accepts a
* String.
*/
public class ToStringCodex extends ValueCodex {
private final Constructor constructor;
public ToStringCodex(Constructor constructor) {
this.constructor = constructor;
}
@Override
public Type describe(TypeContext context) {
return new Type.Builder()
.withJsonKind(JsonKind.STRING)
.withTypeHint(TypeHint.create(constructor.getDeclaringClass()))
.build();
}
@Override
public T readNotNull(JsonElement element, DeserializationContext context) throws Exception {
return constructor.newInstance(element.getAsString());
}
@Override
public void writeNotNull(T object, SerializationContext context) throws IOException {
context.getWriter().value(object.toString());
}
}