svn commit: r935074 - /openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/sqlcache/TestDefaultQueryStatistics.java

[pp...@apache.org]

Author: ppoddar
Date: Fri Apr 16 20:37:39 2010
New Revision: 935074

URL: http://svn.apache.org/viewvc?rev=935074&view=rev
Log:
OPENJPA-703: Add a test for thread-safety of cache statistics

Added:
    openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/sqlcache/TestDefaultQueryStatistics.java   (with props)

Added: openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/sqlcache/TestDefaultQueryStatistics.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/sqlcache/TestDefaultQueryStatistics.java?rev=935074&view=auto
==============================================================================
--- openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/sqlcache/TestDefaultQueryStatistics.java (added)
+++ openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/sqlcache/TestDefaultQueryStatistics.java Fri Apr 16 20:37:39 2010
@@ -0,0 +1,83 @@
+/*
+ * 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.openjpa.persistence.jdbc.sqlcache;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.openjpa.kernel.PreparedQueryCache;
+import org.apache.openjpa.kernel.QueryStatistics;
+import org.apache.openjpa.persistence.test.SingleEMFTestCase;
+
+/**
+ * Tests that query statistics are collected in a thread-safe manner.
+ *  
+ * @author Rick Curtis
+ * @author Pinaki Poddar
+ *
+ */
+public class TestDefaultQueryStatistics extends SingleEMFTestCase {
+    QueryStatistics<String> statistics;
+    
+    @Override
+    public void setUp() throws Exception {
+        super.setUp();
+        statistics = new QueryStatistics.Default<String>();
+    }
+    
+    public void testThreadSafety() throws Exception{
+        final QueryStatistics<String> finalStats = statistics;
+        
+        Runnable runner = new Runnable() {
+            public void run() {
+                for (int i = 0; i < 10000; i++) {
+                    finalStats.recordExecution("query " + Thread.currentThread().getId() + " " + i);
+                }
+            }
+        };
+        
+        List<Thread> threads = new ArrayList<Thread>();
+        for(int i = 0;i<10;i++){
+            threads.add(new Thread(runner));
+        }
+        for(Thread t : threads){
+            t.start();
+        }
+        for(Thread t : threads){
+            t.join();
+        }
+        assertEquals(1000, finalStats.keys().size());
+    }
+    
+    public void testStatsSize() throws Exception{
+        for (int i = 0; i < 10000; i++) {
+            statistics.recordExecution("query " + Thread.currentThread().getId() + " " + i);
+        }
+        assertEquals(1000, statistics.keys().size());
+    }
+    
+    public void testQueryStatisticsIsDisabledByDefault() {
+        PreparedQueryCache cache = emf.getConfiguration().getQuerySQLCacheInstance();
+        assertNotNull(cache);
+        QueryStatistics<String> stats = cache.getStatistics();
+        assertNotNull(stats);
+        assertTrue(stats.keys().isEmpty());
+        assertEquals(QueryStatistics.None.class, stats.getClass());
+    }
+}

Propchange: openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/sqlcache/TestDefaultQueryStatistics.java
------------------------------------------------------------------------------
    svn:eol-style = native