com.echobox.api.tiktok.client.EventBodyDeserializer Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 com.echobox.api.tiktok.client;

import com.echobox.api.tiktok.model.EventContent;
import com.echobox.api.tiktok.model.request.EventBody;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;

import java.lang.reflect.Type;

/**
 * Custom deserializer for webhook event requests.
 *
 * @author lukemartin
 */
public class EventBodyDeserializer implements JsonDeserializer {
  private final Gson gson;
  
  public EventBodyDeserializer() {
    GsonBuilder builder = new GsonBuilder();
    builder.registerTypeAdapter(EventContent.class, new EventContentDeserializer());
    gson = builder.create();
  }
  
  @Override
  public EventBody deserialize(JsonElement json, Type typeOfT,
      JsonDeserializationContext context) throws JsonParseException {
    EventBody eventBody = gson.fromJson(json, typeOfT);
    return eventBody;
  }
  
  private static class EventContentDeserializer implements JsonDeserializer {
    private final Gson gson = new Gson();
    
    @Override
    public EventContent deserialize(JsonElement json, Type typeOfT,
        JsonDeserializationContext context) throws JsonParseException {
      return gson.fromJson(json.getAsString(), typeOfT);
    }
  }
}