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new 79631e3ec62 Register IoTDBDriver as a JDBC 4 service provider (#18744)
79631e3ec62 is described below
commit 79631e3ec622fc133392fd35e654d00056f224b0
Author: ZIHAN DAI <[email protected]>
AuthorDate: Mon Sep 28 23:11:25 2026 +1000
Register IoTDBDriver as a JDBC 4 service provider (#18744)
Add META-INF/services/java.sql.Driver naming
org.apache.iotdb.jdbc.IoTDBDriver,
so DriverManager finds the driver without a Class.forName call. The file
that
existed before (at services/META-INF/, with a /* */ header ServiceLoader
does
not accept) never took effect and was removed in #18719.
A unit test asks ServiceLoader for java.sql.Driver providers and expects
IoTDBDriver among them; it fails when the file is missing.
Signed-off-by: Zihan Dai <[email protected]>
---
.../resources/META-INF/services/java.sql.Driver | 20 +++++++++
.../iotdb/jdbc/DriverServiceRegistrationTest.java | 47 ++++++++++++++++++++++
2 files changed, 67 insertions(+)
diff --git
a/iotdb-client/jdbc/src/main/resources/META-INF/services/java.sql.Driver
b/iotdb-client/jdbc/src/main/resources/META-INF/services/java.sql.Driver
new file mode 100644
index 00000000000..bc95a99485c
--- /dev/null
+++ b/iotdb-client/jdbc/src/main/resources/META-INF/services/java.sql.Driver
@@ -0,0 +1,20 @@
+#
+# 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.
+#
+
+org.apache.iotdb.jdbc.IoTDBDriver
diff --git
a/iotdb-client/jdbc/src/test/java/org/apache/iotdb/jdbc/DriverServiceRegistrationTest.java
b/iotdb-client/jdbc/src/test/java/org/apache/iotdb/jdbc/DriverServiceRegistrationTest.java
new file mode 100644
index 00000000000..c0e9365c92b
--- /dev/null
+++
b/iotdb-client/jdbc/src/test/java/org/apache/iotdb/jdbc/DriverServiceRegistrationTest.java
@@ -0,0 +1,47 @@
+/*
+ * 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 org.apache.iotdb.jdbc;
+
+import org.junit.Test;
+
+import java.sql.Driver;
+import java.util.ServiceLoader;
+
+import static org.junit.Assert.assertTrue;
+
+public class DriverServiceRegistrationTest {
+
+ /**
+ * JDBC 4 drivers are loaded by DriverManager through ServiceLoader, from
+ * META-INF/services/java.sql.Driver. Asking ServiceLoader directly keeps
this independent of
+ * whether another test has already loaded IoTDBDriver, which registers it
with DriverManager as a
+ * side effect.
+ */
+ @Test
+ public void driverIsListedAsAJdbcServiceProvider() {
+ boolean found = false;
+ for (Driver driver : ServiceLoader.load(Driver.class)) {
+ if (driver instanceof IoTDBDriver) {
+ found = true;
+ }
+ }
+ assertTrue("META-INF/services/java.sql.Driver should name IoTDBDriver",
found);
+ }
+}
