Add gson adapters for special field types

Added type adapters for Instant, LocalDateTime, and ZonedDateTime.  UUID
seems to work already.
Added new Coder that offers an alternative encoding for Instant.

Issue-ID: POLICY-1625
Signed-off-by: Jim Hahn <jrh3@att.com>
Change-Id: I5230fa7fe955d78c5f2da1316cb1504b5875ea84

1 files changed, 8 insertions, 2 deletions

diff --git a/gson/src/main/java/org/onap/policy/common/gson/GsonMessageBodyHandler.java b/gson/src/main/java/org/onap/policy/common/gson/GsonMessageBodyHandler.java
index 75d58f2f..d6e36b39 100644
--- a/gson/src/main/java/org/onap/policy/common/gson/GsonMessageBodyHandler.java
+++ b/gson/src/main/java/org/onap/policy/common/gson/GsonMessageBodyHandler.java
@@ -2,7 +2,7 @@
  * ============LICENSE_START=======================================================
  * ONAP
  * ================================================================================
- * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2019-2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,6 +30,9 @@ import java.io.OutputStreamWriter;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Type;
 import java.nio.charset.StandardCharsets;
+import java.time.Instant;
+import java.time.LocalDateTime;
+import java.time.ZonedDateTime;
 import javax.ws.rs.Consumes;
 import javax.ws.rs.Produces;
 import javax.ws.rs.core.MediaType;
@@ -85,7 +88,10 @@ public class GsonMessageBodyHandler implements MessageBodyReader<Object>, Messag
      * @return the configured builder
      */
     public static GsonBuilder configBuilder(GsonBuilder builder) {
-        return builder.disableHtmlEscaping().registerTypeAdapterFactory(new MapDoubleAdapterFactory());
+        return builder.disableHtmlEscaping().registerTypeAdapterFactory(new MapDoubleAdapterFactory())
+                        .registerTypeAdapter(Instant.class, new InstantTypeAdapter())
+                        .registerTypeAdapter(LocalDateTime.class, new LocalDateTimeTypeAdapter())
+                        .registerTypeAdapter(ZonedDateTime.class, new ZonedDateTimeTypeAdapter());
     }
 
     @Override