/*
* 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());
}
}