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.controlloop.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.onap.policy.controlloop.ControlLoopNotificationType;
39 import org.slf4j.Logger;
40 import org.slf4j.LoggerFactory;
42 public final class Serialization {
43 public static final Gson gson =
44 new GsonBuilder().disableHtmlEscaping().registerTypeAdapter(ZonedDateTime.class, new GsonUtcAdapter())
45 .registerTypeAdapter(Instant.class, new GsonInstantAdapter())
46 .registerTypeAdapter(ControlLoopNotificationType.class, new NotificationTypeAdapter()).create();
48 public static final Gson gsonPretty = new GsonBuilder().disableHtmlEscaping().setPrettyPrinting()
49 .registerTypeAdapter(ZonedDateTime.class, new GsonUtcAdapter())
50 .registerTypeAdapter(Instant.class, new GsonInstantAdapter())
51 .registerTypeAdapter(ControlLoopNotificationType.class, new NotificationTypeAdapter()).create();
53 public static final Gson gsonJunit = new GsonBuilder().disableHtmlEscaping().setPrettyPrinting()
54 .registerTypeAdapter(ZonedDateTime.class, new GsonUtcAdapter())
55 .registerTypeAdapter(Instant.class, new GsonInstantAdapter()).create();
57 private Serialization() {
58 // Private constructor to prevent subclassing
61 public static class NotificationTypeAdapter
62 implements JsonSerializer<ControlLoopNotificationType>, JsonDeserializer<ControlLoopNotificationType> {
64 public JsonElement serialize(ControlLoopNotificationType src, Type typeOfSrc,
65 JsonSerializationContext context) {
66 return new JsonPrimitive(src.toString());
70 public ControlLoopNotificationType deserialize(JsonElement json, Type typeOfT,
71 JsonDeserializationContext context) {
72 return ControlLoopNotificationType.toType(json.getAsString());
76 public static class GsonUtcAdapter implements JsonSerializer<ZonedDateTime>, JsonDeserializer<ZonedDateTime> {
77 private static final Logger logger = LoggerFactory.getLogger(GsonUtcAdapter.class);
78 public static final DateTimeFormatter format = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSSSSSxxx");
81 public ZonedDateTime deserialize(JsonElement element, Type type, JsonDeserializationContext context) {
83 return ZonedDateTime.parse(element.getAsString(), format);
84 } catch (Exception e) {
85 logger.error(e.getMessage(), e);
91 public JsonElement serialize(ZonedDateTime datetime, Type type, JsonSerializationContext context) {
92 return new JsonPrimitive(datetime.format(format));
96 public static class GsonInstantAdapter implements JsonSerializer<Instant>, JsonDeserializer<Instant> {
99 public Instant deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) {
100 return Instant.ofEpochMilli(json.getAsLong());
104 public JsonElement serialize(Instant src, Type typeOfSrc, JsonSerializationContext context) {
105 return new JsonPrimitive(src.toEpochMilli());