001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.master.http.gson; 019 020import org.apache.hadoop.hbase.Size; 021import org.apache.hadoop.hbase.http.gson.ByteArraySerializer; 022import org.apache.yetus.audience.InterfaceAudience; 023 024import org.apache.hbase.thirdparty.com.google.gson.FieldNamingPolicy; 025import org.apache.hbase.thirdparty.com.google.gson.Gson; 026import org.apache.hbase.thirdparty.com.google.gson.GsonBuilder; 027 028/** 029 * Provides a singleton {@link Gson} instance configured just the way we like it. 030 */ 031@InterfaceAudience.Private 032public final class GsonFactory { 033 034 private GsonFactory() { 035 } 036 037 public static Gson buildGson() { 038 return new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES) 039 .enableComplexMapKeySerialization() 040 .registerTypeAdapter(byte[].class, new ByteArraySerializer()) 041 .registerTypeAdapter(Size.class, new SizeAsBytesSerializer()).create(); 042 } 043}