io.vinyldns.java.serializers.AddSingleChangeAdapterFactory Maven / Gradle / Ivy
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/**
* Copyright 2018 Comcast Cable Communications Management, LLC
*
* 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 io.vinyldns.java.serializers;
import com.google.gson.Gson;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.TypeAdapter;
import com.google.gson.TypeAdapterFactory;
import com.google.gson.reflect.TypeToken;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonWriter;
import io.vinyldns.java.model.batch.AddSingleChange;
import java.io.IOException;
public class AddSingleChangeAdapterFactory implements TypeAdapterFactory {
public TypeAdapter create(final Gson gson, TypeToken type) {
if (!type.getType().equals(AddSingleChange.class)) {
return null;
}
final TypeAdapter delegate = gson.getDelegateAdapter(this, type);
return new TypeAdapter() {
public void write(JsonWriter out, T value) throws IOException {
delegate.write(out, value);
}
public T read(JsonReader in) throws IOException {
JsonElement tree = gson.fromJson(in, JsonElement.class);
JsonObject jsonObject = tree.getAsJsonObject();
JsonElement record = jsonObject.get("record");
if (record.isJsonNull()) {
return delegate.fromJsonTree(jsonObject);
}
JsonElement type = jsonObject.get("type");
record.getAsJsonObject().add("type", type);
return delegate.fromJsonTree(jsonObject);
}
};
}
}