added byte[] handling from kubernetes-client/java#131

Author: oweiler

src/main/java/de/predic8/kubernetesclient/client/NamespacedApiClient.java

@@ -1,13 +1,55 @@
 package de.predic8.kubernetesclient.client;
 
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParseException;
+import com.google.gson.JsonPrimitive;
+import com.google.gson.JsonSerializationContext;
+import com.google.gson.JsonSerializer;
 import io.kubernetes.client.ApiClient;
+import io.kubernetes.client.JSON;
+import org.joda.time.DateTime;
+import org.joda.time.LocalDate;
+
+import java.lang.reflect.Type;
+import java.util.Base64;
+import java.util.Date;
 
 public abstract class NamespacedApiClient extends ApiClient {
 
+
+    public NamespacedApiClient() {
+        setJSON(new ByteArrayHandlingJSON());
+    }
+
     /**
      * @return "default" (overrideable using the "kubernetes.client.namespace" Spring property) if running outside of the cluster,
      * the pod's own namespace, if running on the inside.
      */
     public abstract String getMyNamespace();
 
+    private static class ByteArrayHandlingJSON extends JSON {
+        public ByteArrayHandlingJSON() {
+            setGson(new GsonBuilder()
+                .registerTypeAdapter(Date.class, new DateTypeAdapter())
+                .registerTypeAdapter(java.sql.Date.class, new SqlDateTypeAdapter())
+                .registerTypeAdapter(DateTime.class, new DateTimeTypeAdapter())
+                .registerTypeAdapter(LocalDate.class, new LocalDateTypeAdapter())
+                .registerTypeAdapter(byte[].class, new ByteArrayBase64StringTypeAdapter())
+                .create());
+
+        }
+    }
+
+    public static class ByteArrayBase64StringTypeAdapter implements JsonSerializer<byte[]>, JsonDeserializer<byte[]> {
+
+        public byte[] deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
+            return Base64.getDecoder().decode(json.getAsString());
+        }
+        public JsonElement serialize(byte[] src, Type typeOfSrc, JsonSerializationContext context) {
+            return new JsonPrimitive(Base64.getEncoder().encodeToString(src));
+        }
+    }
 }