[GitHub] [accumulo] keith-turner commented on a diff in pull request #3285: Move Gson ByteArrayToBase64TypeAdapter to its own utility class

["keith-turner (via GitHub)" <gi...@apache.org>]

keith-turner commented on code in PR #3285:
URL: https://github.com/apache/accumulo/pull/3285#discussion_r1160849628


##########
core/src/main/java/org/apache/accumulo/core/util/ByteArrayToBase64TypeAdapter.java:
##########
@@ -0,0 +1,78 @@
+/*
+ * 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
+ *
+ *   https://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 org.apache.accumulo.core.util;
+
+import java.lang.reflect.Type;
+import java.util.Base64;
+import java.util.Base64.Decoder;
+import java.util.Base64.Encoder;
+import java.util.Objects;
+
+import com.google.gson.Gson;
+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;
+
+/**
+ * Gson adapter to handle serializing and deserializing byte arrays using Base64 encoding.
+ */
+public class ByteArrayToBase64TypeAdapter
+    implements JsonSerializer<byte[]>, JsonDeserializer<byte[]> {
+
+  private static final Decoder decoder = Base64.getUrlDecoder();
+  private static final Encoder encoder = Base64.getUrlEncoder();

Review Comment:
   I was curious if these were thread safe.  I looked at the impl and both return a statically referenced singleton, so would assume that is thread safe.



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