Author: ppoddar
Date: Thu Nov 19 20:37:45 2009
New Revision: 882285
URL: http://svn.apache.org/viewvc?rev=882285&view=rev
Log:
OPENJPA-1350: Test case (by Rick Curtis) to test early registration of type
alias to avoid/minimze risk of multi-threaded repository initialization.
Original change was revision 826944
Added:
openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/meta/TestQueryTypeAliasRegistration.java
(with props)
Added:
openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/meta/TestQueryTypeAliasRegistration.java
URL:
http://svn.apache.org/viewvc/openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/meta/TestQueryTypeAliasRegistration.java?rev=882285&view=auto
==============================================================================
---
openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/meta/TestQueryTypeAliasRegistration.java
(added)
+++
openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/meta/TestQueryTypeAliasRegistration.java
Thu Nov 19 20:37:45 2009
@@ -0,0 +1,106 @@
+/*
+ * 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.meta;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import javax.persistence.EntityManagerFactory;
+
+import org.apache.openjpa.meta.MetaDataRepository;
+import org.apache.openjpa.persistence.OpenJPAEntityManagerFactorySPI;
+import org.apache.openjpa.persistence.OpenJPAEntityManagerSPI;
+import org.apache.openjpa.persistence.test.SingleEMFTestCase;
+
+public class TestQueryTypeAliasRegistration extends SingleEMFTestCase {
+ private final int threads = 100;
+
+ @Override
+ public void setUp() throws Exception {
+ super.setUp(MdrTestEntity.class);
+ assertNotNull(emf);
+ // Create the Entity which we're going to try to get MetaData for using
+ // an alias. Do this to ensure that it has been registered to the
PCRegistry.
+ new MdrTestEntity();
+ }
+
+ /**
+ * This method tests a timing window where more than one thread requests
MetaData using an alias
+ * at the same time. All threads should get data back and no threads
should receive an
+ * exception.
+ */
+ public void testMultiThreadGetMetaDataAlias() throws Exception {
+ try {
+ List<Worker> workers = new ArrayList<Worker>();
+ Set<Exception> exceptions = new HashSet<Exception>();
+ for (int i = 0; i < threads; i++) {
+ Worker w = new Worker(emf);
+ workers.add(w);
+ }
+ for (Worker w : workers) {
+ w.start();
+ }
+ for (Worker w : workers) {
+ w.join();
+ Exception e = w.getException();
+ if (e != null) {
+ exceptions.add(w.getException());
+ }
+ }
+ assertTrue("Caught " + exceptions.toString(), exceptions.size()
== 0);
+ } finally {
+ if (emf != null) {
+ emf.close();
+ }
+ }
+ }
+
+ class Worker extends Thread {
+ OpenJPAEntityManagerFactorySPI emf;
+ OpenJPAEntityManagerSPI em;
+ MetaDataRepository repo;
+ Exception ex;
+
+ Worker(EntityManagerFactory e) {
+ emf = (OpenJPAEntityManagerFactorySPI) e;
+ // Create an EM here because that triggers registering the MDR as
a class registration
+ // listener with the PCRegistry.
+ em = emf.createEntityManager();
+ repo = em.getConfiguration().getMetaDataRepositoryInstance();
+ }
+
+ Exception getException() {
+ return ex;
+ }
+
+ @Override
+ public void run() {
+ try {
+ repo.getMetaData("MdrTestEntity",
Thread.currentThread().getContextClassLoader(), true);
+ } catch (Exception e) {
+ ex = e;
+ e.printStackTrace();
+ } finally {
+ em.close();
+ }
+ }
+ }
+}
Propchange:
openjpa/trunk/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/meta/TestQueryTypeAliasRegistration.java
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