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From GitBox <...@apache.org>
Subject [GitHub] [zookeeper] lvfangmin commented on a change in pull request #1056: ZOOKEEPER-3495: fix SnapshotDigestTest to work with JDK12+
Date Thu, 29 Aug 2019 19:19:09 GMT
lvfangmin commented on a change in pull request #1056: ZOOKEEPER-3495: fix SnapshotDigestTest
to work with JDK12+
URL: https://github.com/apache/zookeeper/pull/1056#discussion_r319232082
 
 

 ##########
 File path: zookeeper-server/src/main/java/org/apache/zookeeper/server/DigestCalculator.java
 ##########
 @@ -16,37 +16,39 @@
  * limitations under the License.
  */
 
-package org.apache.zookeeper.server.util;
+package org.apache.zookeeper.server;
 
 import java.nio.ByteBuffer;
 import java.util.zip.CRC32;
 import org.apache.zookeeper.ZooDefs;
 import org.apache.zookeeper.data.StatPersisted;
-import org.apache.zookeeper.server.DataNode;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 /**
  * Defines how to calculate the digest for a given node.
  */
-public class DigestCalculator {
+class DigestCalculator {
 
     private static final Logger LOG = LoggerFactory.getLogger(DigestCalculator.class);
 
     // The hardcoded digest version, should bump up this version whenever
     // we changed the digest method or fields.
-    //
-    // Defined it as Integer to make it able to be changed in test via reflection
-    public static final Integer DIGEST_VERSION = 2;
+    private static final int DIGEST_VERSION = 2;
 
     public static final String ZOOKEEPER_DIGEST_ENABLED = "zookeeper.digest.enabled";
-    private static boolean digestEnabled;
 
     static {
-        digestEnabled = Boolean.parseBoolean(System.getProperty(ZOOKEEPER_DIGEST_ENABLED,
"true"));
-        LOG.info("{} = {}", ZOOKEEPER_DIGEST_ENABLED, digestEnabled);
+        LOG.info("{} = {}", ZOOKEEPER_DIGEST_ENABLED, System.getProperty(ZOOKEEPER_DIGEST_ENABLED,
"true"));
     }
 
+    private boolean digestEnabled;
+
+    DigestCalculator() {
+        this.digestEnabled = Boolean.parseBoolean(System.getProperty(ZOOKEEPER_DIGEST_ENABLED,
"true"));
 
 Review comment:
   Probably we should move this setting to ZooKeeperServer, so that it can be shared and used
in static classes like SerializeUtil.

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