/*
* 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
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*/
package org.apache.openjpa.persistence.jdbc.query.cache;
import java.util.Collections;
import org.apache.openjpa.datacache.ConcurrentQueryCache;
import org.apache.openjpa.datacache.QueryCache;
import org.apache.openjpa.datacache.TypesChangedEvent;
import org.apache.openjpa.datacache.AbstractQueryCache.EvictPolicy;
import org.apache.openjpa.jdbc.conf.JDBCConfiguration;
public class TestQueryTimestampEviction extends AbstractQueryCacheTest {
public void setUp() throws Exception {
super.setUp(
"openjpa.DataCache", "true",
"openjpa.QueryCache", "true(CacheSize=1000, EvictPolicy='timestamp')",
"openjpa.RemoteCommitProvider", "sjvm");
}
/**
* Verify that the persistent unit property configuration is enabling
* the TIMESTAMP Eviction Policy.
*/
public void testTimestampEvictionEnablement() {
ConcurrentQueryCache qc = getQueryCache();
EvictPolicy ep = qc.getEvictPolicy();
assertTrue(ep == EvictPolicy.TIMESTAMP);
}
public void testLoadQueries() {
// Not all databases support GenerationType.IDENTITY column(s)
if (!((JDBCConfiguration) emf.getConfiguration()).
getDBDictionaryInstance().supportsAutoAssign) {
return;
}
loadQueryCache();
int cacheSizeBeforeUpdate = queryCacheGet();
updateAnEntity();
int cacheSizeAfterUpdate = queryCacheGet();
// If evictPolicy is timestamp the querycache size should be equal to
// cacheSizeBeforeUpdate value.
assertEquals(cacheSizeBeforeUpdate, cacheSizeAfterUpdate);
this.recreateData = false;
}
/**
* This testcase was added for OPENJPA-1379. Prior to this fix, the main thread holds a lock on
* the QueryCache which it never released. As a result, thread t2 will never successfully obtain
* the writeLock().
*
* The main thread holds the writeLock because setUp(..) calls deleteAllData() which eventually
* results in AbstractQueryCache.onTypesChanges(TypesChangedEvent) being called.
*
* @throws Exception
*/
public void testWriteLock() throws Exception {
final QueryCache qc = emf.getConfiguration().getDataCacheManagerInstance().getSystemQueryCache();
Thread t2 = new Thread() {
public void run() {
qc.writeLock();
qc.writeUnlock();
}
};
t2.start();
t2.join(5000);
if (t2.getState().equals(java.lang.Thread.State.WAITING)) {
fail("The thread is still waiting on a writeLock()!");
}
}
}