/**
* 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 org.apache.tajo.json;
import com.google.gson.*;
import java.lang.reflect.Type;
import java.util.Map;
public class GsonHelper {
private final GsonBuilder builder;
private final Gson gson;
public GsonHelper(Map<Type, GsonSerDerAdapter<?>> adapters) {
builder = new GsonBuilder().excludeFieldsWithoutExposeAnnotation();
registerAdapters(builder, adapters);
gson = builder.create();
}
public static void registerAdapters(GsonBuilder builder, Map<Type, GsonSerDerAdapter<?>> adapters) {
for (Map.Entry<Type, GsonSerDerAdapter<?>> entry : adapters.entrySet()) {
try {
builder.registerTypeAdapter(entry.getKey(), entry.getValue());
} catch (Exception e) {
e.printStackTrace();
}
}
}
public Gson getGson() {
return gson;
}
}