This is an automated email from the ASF dual-hosted git repository.

madhan pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/ranger.git


The following commit(s) were added to refs/heads/master by this push:
     new 9c6969d  RANGER-3292: fixed ConcurrentModificationException from 
RangerTransactionSynchronizationAdapter
9c6969d is described below

commit 9c6969de882e9c1e63ebbc4f250a0ee2624be7d5
Author: Chia-Ping Tsai <[email protected]>
AuthorDate: Sat May 29 14:46:27 2021 +0800

    RANGER-3292: fixed ConcurrentModificationException from 
RangerTransactionSynchronizationAdapter
    
    Signed-off-by: Madhan Neethiraj <[email protected]>
---
 .../RangerTransactionSynchronizationAdapter.java   | 10 +++--
 ...estRangerTransactionSynchronizationAdapter.java | 47 ++++++++++++++++++++++
 2 files changed, 53 insertions(+), 4 deletions(-)

diff --git 
a/security-admin/src/main/java/org/apache/ranger/common/db/RangerTransactionSynchronizationAdapter.java
 
b/security-admin/src/main/java/org/apache/ranger/common/db/RangerTransactionSynchronizationAdapter.java
index 7349898..fc44e6d 100644
--- 
a/security-admin/src/main/java/org/apache/ranger/common/db/RangerTransactionSynchronizationAdapter.java
+++ 
b/security-admin/src/main/java/org/apache/ranger/common/db/RangerTransactionSynchronizationAdapter.java
@@ -118,14 +118,16 @@ public class RangerTransactionSynchronizationAdapter 
extends TransactionSynchron
         final boolean isParentTransactionCommitted = status == 
STATUS_COMMITTED;
 
         if (isParentTransactionCommitted) {
-            // Run tasks scheduled to run after transaction is successfully 
committed
-            runRunnables(RUNNABLES_AFTER_COMMIT.get(), true);
+            List<Runnable> runnablesAfterCommit = RUNNABLES_AFTER_COMMIT.get();
             RUNNABLES_AFTER_COMMIT.remove();
+            // Run tasks scheduled to run after transaction is successfully 
committed
+            runRunnables(runnablesAfterCommit, true);
         }
 
-        // Run other tasks scheduled to run after transaction completes
-        runRunnables(RUNNABLES.get(), false);
+        List<Runnable> runnables = RUNNABLES.get();
         RUNNABLES.remove();
+        // Run other tasks scheduled to run after transaction completes
+        runRunnables(runnables, false);
 
         if (LOG.isDebugEnabled()) {
             LOG.debug("<== 
RangerTransactionSynchronizationAdapter.afterCompletion(status=" + (status == 
STATUS_COMMITTED ? "COMMITTED" : "ROLLED_BACK") + ")");
diff --git 
a/security-admin/src/test/java/org/apache/ranger/common/db/TestRangerTransactionSynchronizationAdapter.java
 
b/security-admin/src/test/java/org/apache/ranger/common/db/TestRangerTransactionSynchronizationAdapter.java
new file mode 100644
index 0000000..735c741
--- /dev/null
+++ 
b/security-admin/src/test/java/org/apache/ranger/common/db/TestRangerTransactionSynchronizationAdapter.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.ranger.common.db;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.mockito.Mockito;
+import org.springframework.transaction.PlatformTransactionManager;
+import 
org.springframework.transaction.support.TransactionSynchronizationManager;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class TestRangerTransactionSynchronizationAdapter {
+
+    @Test
+    public void testNestedRunnableAfterCompletion() {
+        TransactionSynchronizationManager.initSynchronization();
+        try {
+            RangerTransactionSynchronizationAdapter rtsa = new 
RangerTransactionSynchronizationAdapter();
+            rtsa.txManager = Mockito.mock(PlatformTransactionManager.class);
+            AtomicInteger count = new AtomicInteger(0);
+            rtsa.executeOnTransactionCompletion(() -> {
+                count.incrementAndGet();
+                rtsa.executeOnTransactionCompletion(count::incrementAndGet);
+            });
+            rtsa.afterCompletion(0);
+            Assert.assertEquals(1, count.get());
+        } finally {
+            TransactionSynchronizationManager.clear();
+        }
+
+    }
+}

Reply via email to