GsonHolder.java

/*
 * Copyright 2018-2019 Providence Authors
 *
 * 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 net.morimekta.proto.jdbi.util;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import net.morimekta.proto.gson.ProtoTypeAdapterFactory;
import net.morimekta.proto.gson.ProtoTypeOptions;

import static net.morimekta.proto.gson.ProtoTypeOptions.Option.LENIENT_READER;
import static net.morimekta.proto.gson.ProtoTypeOptions.Option.WRITE_COMPACT_MESSAGE;
import static net.morimekta.proto.gson.ProtoTypeOptions.Option.WRITE_UNPACKED_ANY;

/**
 * Shared Gson instance for message column serialization.
 */
public final class GsonHolder {
    /** Gson instance configured for compact proto message serialization. */
    public static final Gson JSON = new GsonBuilder()
            .registerTypeAdapterFactory(
                    new ProtoTypeAdapterFactory(
                            new ProtoTypeOptions()
                                    .withEnabled(WRITE_COMPACT_MESSAGE)
                                    .withEnabled(WRITE_UNPACKED_ANY)
                                    .withEnabled(LENIENT_READER)
                    ))
            .create();

    private GsonHolder() {}
}