[GitHub] [dolphinscheduler] Narcasserun commented on a change in pull request #7294: [Fix-7291][datasource] support driverClassName default

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

Narcasserun commented on a change in pull request #7294:
URL: https://github.com/apache/dolphinscheduler/pull/7294#discussion_r765876401



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File path: dolphinscheduler-datasource-plugin/dolphinscheduler-datasource-api/src/main/java/org/apache/dolphinscheduler/plugin/datasource/api/provider/JdbcDataSourceProvider.java
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@@ -80,4 +89,23 @@ public static HikariDataSource createOneSessionJdbcDataSource(BaseConnectionPara
         return dataSource;
     }
 
+    protected static void loaderJdbcDriver(ClassLoader classLoader, BaseConnectionParam properties, DbType dbType) {
+        String drv = StringUtils.isBlank(properties.getDriverClassName()) ? DatasourceUtil.getDatasourceProcessor(dbType).getDatasourceDriver() : properties.getDriverClassName();
+        try {
+            final Class<?> clazz = Class.forName(drv, true, classLoader);
+            final Driver driver = (Driver) clazz.newInstance();
+            if (!driver.acceptsURL(properties.getJdbcUrl())) {
+                logger.warn("Jdbc driver loading error. Driver {} cannot accept url.", drv);
+                throw new RuntimeException("Jdbc driver loading error.");
+            }
+            if (dbType.equals(DbType.MYSQL) && driver.getMajorVersion() >= 8) {
+                properties.setDriverClassName(drv);
+            } else {

Review comment:
       yes




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