Revert "fix: use druid data source for better observability (#660)"

This reverts commit 1877e8f.

metadata-jdbc/pom.xml

@@ -47,9 +47,9 @@
         </dependency>
 
         <dependency>
-            <groupId>com.alibaba</groupId>
-            <artifactId>druid</artifactId>
-            <version>1.2.20</version>
+            <groupId>com.zaxxer</groupId>
+            <artifactId>HikariCP</artifactId>
+            <version>5.0.1</version>
         </dependency>
 
         <dependency>

metadata-jdbc/src/main/java/com/automq/rocketmq/metadata/HikariCPDataSourceFactory.java

@@ -0,0 +1,45 @@
+/*
+ * 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 com.automq.rocketmq.metadata;
+
+import com.zaxxer.hikari.HikariConfig;
+import com.zaxxer.hikari.HikariDataSource;
+import java.util.Properties;
+import javax.sql.DataSource;
+import org.apache.ibatis.datasource.pooled.PooledDataSourceFactory;
+
+public class HikariCPDataSourceFactory extends PooledDataSourceFactory {
+    private static HikariDataSource dataSource;
+
+    @Override
+    public void setProperties(Properties properties) {
+        synchronized (HikariCPDataSourceFactory.class) {
+            if (null == dataSource) {
+                HikariConfig config = new HikariConfig(properties);
+                config.setMaximumPoolSize(20);
+                config.setAutoCommit(false);
+                dataSource = new HikariDataSource(config);
+            }
+        }
+    }
+
+    @Override
+    public DataSource getDataSource() {
+        return dataSource;
+    }
+}

metadata-jdbc/src/main/resources/database/mybatis-config.xml

@@ -57,7 +57,7 @@
     <environments default="development">
         <environment id="development">
             <transactionManager type="JDBC"/>
-            <dataSource type="com.automq.rocketmq.metadata.DruidDataSourceFactory">
+            <dataSource type="com.automq.rocketmq.metadata.HikariCPDataSourceFactory">
                 <property name="jdbcUrl" value="${jdbcUrl}"/>
                 <property name="username" value="${userName}"/>
                 <property name="password" value="${password}"/>