[KYUUBI apache#6376] Improve closeEngine method names and logs due to…

… closeSession

# 🔍 Description
## Issue References 🔗

This pull request aims to improve closeEngine method names and logs due to closeSession.

when the share level is `CONNECTION`, closeSession triggers the closeEngine, there are some minor issues with logging and method name.

## Describe Your Solution 🔧

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

## Types of changes 🔖

- [ ] Bugfix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)

## Test Plan 🧪

#### Behavior Without This Pull Request ⚰️

#### Behavior With This Pull Request 🎉

#### Related Unit Tests

---

# Checklist 📝

- [x] This patch was not authored or co-authored using [Generative Tooling](https://www.apache.org/legal/generative-tooling.html)

**Be nice. Be informative.**

Closes apache#6376 from yikf/rename-close-session.

Closes apache#6376

b03661b [yikaifei] rename closeSession

Authored-by: yikaifei <yikaifei@apache.org>
Signed-off-by: yikaifei <yikaifei@apache.org>

externals/kyuubi-chat-engine/src/main/scala/org/apache/kyuubi/engine/chat/session/ChatSessionManager.scala

@@ -59,12 +59,12 @@ class ChatSessionManager(name: String)
   override def closeSession(sessionHandle: SessionHandle): Unit = {
     super.closeSession(sessionHandle)
     if (conf.get(ENGINE_SHARE_LEVEL) == ShareLevel.CONNECTION.toString) {
-      info("Session stopped due to shared level is Connection.")
-      stopSession()
+      info("Chat engine stopped due to session stopped and shared level is CONNECTION.")
+      stopEngine()
     }
   }
 
-  private def stopSession(): Unit = {
+  private def stopEngine(): Unit = {
     ChatEngine.currentEngine.foreach(_.stop())
   }
 }

externals/kyuubi-flink-sql-engine/src/main/scala/org/apache/kyuubi/engine/flink/session/FlinkSQLSessionManager.scala

@@ -90,12 +90,12 @@ class FlinkSQLSessionManager(engineContext: DefaultContext)
         warn(s"Error closing session $sessionHandle", t)
     }
     if (shareLevel == ShareLevel.CONNECTION) {
-      info("Session stopped due to shared level is Connection.")
-      stopSession()
+      info("Flink engine stopped due to session stopped and shared level is CONNECTION.")
+      stopEngine()
     }
   }
 
-  private def stopSession(): Unit = {
+  private def stopEngine(): Unit = {
     FlinkSQLEngine.currentEngine.foreach(_.stop())
   }
 

externals/kyuubi-hive-sql-engine/src/main/scala/org/apache/kyuubi/engine/hive/session/HiveSessionManager.scala

@@ -172,7 +172,7 @@ class HiveSessionManager(engine: HiveSQLEngine) extends SessionManager("HiveSess
   override def closeSession(sessionHandle: SessionHandle): Unit = {
     super.closeSession(sessionHandle)
     if (conf.get(ENGINE_SHARE_LEVEL) == ShareLevel.CONNECTION.toString) {
-      info("Session stopped due to shared level is Connection.")
+      info("Hive engine stopped due to session stopped and shared level is CONNECTION.")
       engine.stop()
     }
   }

externals/kyuubi-jdbc-engine/src/main/scala/org/apache/kyuubi/engine/jdbc/session/JdbcSessionManager.scala

@@ -55,12 +55,12 @@ class JdbcSessionManager(name: String)
   override def closeSession(sessionHandle: SessionHandle): Unit = {
     super.closeSession(sessionHandle)
     if (conf.get(ENGINE_SHARE_LEVEL) == ShareLevel.CONNECTION.toString) {
-      info("Session stopped due to shared level is Connection.")
-      stopSession()
+      info("JDBC engine stopped due to session stopped and shared level is CONNECTION.")
+      stopEngine()
     }
   }
 
-  private def stopSession(): Unit = {
+  private def stopEngine(): Unit = {
     JdbcSQLEngine.currentEngine.foreach { engine =>
       engine.selfExited = true
       engine.stop()

externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/session/SparkSQLSessionManager.scala

@@ -200,12 +200,12 @@ class SparkSQLSessionManager private (name: String, spark: SparkSession)
       }
     }
     if (shareLevel == ShareLevel.CONNECTION) {
-      info("Session stopped due to shared level is Connection.")
-      stopSession()
+      info("Spark engine stopped due to session stopped and shared level is CONNECTION.")
+      stopEngine()
     }
   }
 
-  private def stopSession(): Unit = {
+  private def stopEngine(): Unit = {
     SparkSQLEngine.currentEngine.foreach(_.stop())
   }
 

externals/kyuubi-trino-engine/src/main/scala/org/apache/kyuubi/engine/trino/session/TrinoSessionManager.scala

@@ -45,12 +45,12 @@ class TrinoSessionManager
   override def closeSession(sessionHandle: SessionHandle): Unit = {
     super.closeSession(sessionHandle)
     if (conf.get(ENGINE_SHARE_LEVEL) == ShareLevel.CONNECTION.toString) {
-      info("Session stopped due to shared level is Connection.")
-      stopSession()
+      info("Trino engine stopped due to session stopped and shared level is CONNECTION.")
+      stopEngine()
     }
   }
 
-  private def stopSession(): Unit = {
+  private def stopEngine(): Unit = {
     TrinoSqlEngine.currentEngine.foreach(_.stop())
   }