Add entry point for setting StoreAuthedClientId config property (#94)

In #87, one entry point for setting the config value is missing. This commit adds the entry point in QuorumPeerConfig.

All znode group acl tests passed.
Will validate the config loading manually by deploying zk server with StoreAuthedClientId enabled in zk config.

Author: mgao0

zookeeper-server/src/main/java/org/apache/zookeeper/server/auth/X509AuthenticationConfig.java

@@ -230,6 +230,10 @@ public void setZnodeGroupAclServerDedicatedDomain(String znodeGroupAclServerDedi
     this.znodeGroupAclServerDedicatedDomain = znodeGroupAclServerDedicatedDomain;
   }
 
+  public void setStoreAuthedClientIdEnabled(String enabled) {
+    storeAuthedClientIdEnabled = enabled;
+  }
+
   // Getters for X509 properties
 
   public String getClientCertIdType() {
@@ -269,10 +273,6 @@ public int getClientCertIdSanExtractMatcherGroupIndex() {
         : clientCertIdSanExtractMatcherGroupIndex;
   }
 
-  public void setStoreAuthedClientIdEnabled(String enabled) {
-    storeAuthedClientIdEnabled = enabled;
-  }
-
   // Getters for X509 Znode Group Acl properties
 
   public boolean isX509ClientIdAsAclEnabled() {

zookeeper-server/src/main/java/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java

@@ -397,6 +397,8 @@ public void parseProperties(Properties zkProp) throws IOException, ConfigExcepti
                 X509AuthenticationConfig.getInstance().setZnodeGroupAclSuperUserIdStr(value);
             } else if (key.equals(X509AuthenticationConfig.OPEN_READ_ACCESS_PATH_PREFIX)) {
                 X509AuthenticationConfig.getInstance().setZnodeGroupAclOpenReadAccessPathPrefixStr(value);
+            } else if (key.equals(X509AuthenticationConfig.STORE_AUTHED_CLIENT_ID)) {
+                X509AuthenticationConfig.getInstance().setStoreAuthedClientIdEnabled(value);
             } else if (key.equals("standaloneEnabled")) {
                 if (value.toLowerCase().equals("true")) {
                     setStandaloneEnabled(true);