2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
6 * Modifications Copyright (C) 2019 Nordix Foundation.
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
22 package org.onap.policy.appc.util;
24 import com.google.gson.Gson;
25 import com.google.gson.GsonBuilder;
26 import com.google.gson.JsonDeserializationContext;
27 import com.google.gson.JsonDeserializer;
28 import com.google.gson.JsonElement;
29 import com.google.gson.JsonPrimitive;
30 import com.google.gson.JsonSerializationContext;
31 import com.google.gson.JsonSerializer;
33 import java.lang.reflect.Type;
34 import java.time.Instant;
35 import java.time.ZonedDateTime;
36 import java.time.format.DateTimeFormatter;
38 import org.slf4j.Logger;
39 import org.slf4j.LoggerFactory;
41 public final class Serialization {
42 public static final DateTimeFormatter format = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSSSSSxxx");
44 public static final Gson gsonPretty = new GsonBuilder().disableHtmlEscaping().setPrettyPrinting()
45 .registerTypeAdapter(ZonedDateTime.class, new GsonUtcAdapter())
46 .registerTypeAdapter(Instant.class, new GsonInstantAdapter())
47 // .registerTypeAdapter(CommonHeader1607.class, new gsonCommonHeaderInstance())
48 // .registerTypeAdapter(ResponseStatus1607.class, new gsonResponseStatus())
51 private Serialization() {
52 // Private constructor to prevent subclassing
55 public static class GsonUtcAdapter implements JsonSerializer<ZonedDateTime>, JsonDeserializer<ZonedDateTime> {
56 private static final Logger logger = LoggerFactory.getLogger(GsonUtcAdapter.class);
59 public ZonedDateTime deserialize(JsonElement element, Type type, JsonDeserializationContext context) {
61 return ZonedDateTime.parse(element.getAsString(), format);
62 } catch (Exception e) {
63 logger.error("deserialize threw: ", e);
69 public JsonElement serialize(ZonedDateTime datetime, Type type, JsonSerializationContext context) {
70 return new JsonPrimitive(datetime.format(format));
74 public static class GsonInstantAdapter implements JsonSerializer<Instant>, JsonDeserializer<Instant> {
77 public Instant deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) {
78 return Instant.ofEpochMilli(json.getAsLong());
82 public JsonElement serialize(Instant src, Type typeOfSrc, JsonSerializationContext context) {
83 return new JsonPrimitive(src.toEpochMilli());