[GitHub] [inlong] github-code-scanning[bot] commented on a diff in pull request #6265: [INLONG-6264][Sort] Support TiDB

[GitBox <gi...@apache.org>]

github-code-scanning[bot] commented on code in PR #6265:
URL: https://github.com/apache/inlong/pull/6265#discussion_r1002425906


##########
inlong-sort/sort-connectors/tidb/src/main/java/io/tidb/bigdata/jdbc/LoadBalancingDriver.java:
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@@ -0,0 +1,271 @@
+/*
+ * 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
+ *
+ * http://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 io.tidb.bigdata.jdbc;
+
+import static io.tidb.bigdata.jdbc.ExceptionHelper.call;
+import static io.tidb.bigdata.jdbc.ExceptionHelper.stringify;
+import static io.tidb.bigdata.jdbc.ExceptionHelper.uncheckedCall;
+import static java.util.Objects.requireNonNull;
+
+import io.tidb.bigdata.jdbc.impl.DiscovererImpl;
+import io.tidb.bigdata.jdbc.impl.RandomShuffleUrlMapper;
+import io.tidb.bigdata.jdbc.impl.RoundRobinUrlMapper;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.sql.Connection;
+import java.sql.Driver;
+import java.sql.DriverPropertyInfo;
+import java.sql.SQLException;
+import java.sql.SQLFeatureNotSupportedException;
+import java.util.Arrays;
+import java.util.Base64;
+import java.util.Optional;
+import java.util.Properties;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Function;
+import java.util.logging.Logger;
+
+public class LoadBalancingDriver implements Driver {
+  private static final Logger logger = Logger.getLogger(LoadBalancingDriver.class.getName());
+
+  private static final String MYSQL_URL_PREFIX = "jdbc:mysql://";
+  /**
+   * The value is set by {@link System#setProperty(String, String)}
+   */
+  private static final String TIDB_URL_MAPPER = "tidb.jdbc.url-mapper";
+  /**
+   * The value is set by {@link System#setProperty(String, String)}
+   */
+  private static final String URL_PROVIDER = "url.provider";
+  /**
+   * The value is set by {@link System#setProperty(String, String)}
+   */
+  private static final String TIDB_MIN_DISCOVER_INTERVAL_KEY = "tidb.jdbc.min-discovery-interval";
+  private static final long TIDB_MIN_DISCOVER_INTERVAL = 10000;
+  /**
+   * The value is set by {@link System#setProperty(String, String)}
+   */
+  private static final String TIDB_MAX_DISCOVER_INTERVAL_KEY = "tidb.jdbc.max-discovery-interval";
+  private static final long TIDB_MAX_DISCOVER_INTERVAL = 3600000;
+  private static final String MYSQL_DRIVER_NAME;
+  private static final String NEW_MYSQL_DRIVER_NAME = "com.mysql.cj.jdbc.Driver";
+  private static final String OLD_MYSQL_DRIVER_NAME = "com.mysql.jdbc.Driver";
+
+  private static final Base64.Encoder base64Encoder = Base64.getEncoder();
+  private static final AtomicInteger threadId = new AtomicInteger();
+  private static final ThreadLocal<MessageDigest> digestThreadLocal =
+      ThreadLocal.withInitial(() -> uncheckedCall(() -> MessageDigest.getInstance("md5")));

Review Comment:
   ## Use of a broken or risky cryptographic algorithm
   
   Cryptographic algorithm [md5](1) is weak and should not be used.
   
   [Show more details](https://github.com/apache/inlong/security/code-scanning/39)



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