/*
* Hibernate Search, full-text search for your domain model
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.search.test.errorhandling;
import java.io.IOException;
import java.util.Map;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.search.cfg.Environment;
import org.hibernate.search.exception.ErrorHandler;
import org.hibernate.search.spi.SearchIntegrator;
import org.hibernate.search.test.SearchTestBase;
import org.hibernate.search.testsupport.junit.SkipOnElasticsearch;
import org.jboss.byteman.contrib.bmunit.BMRule;
import org.jboss.byteman.contrib.bmunit.BMUnitRunner;
import org.junit.Assert;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
/**
* This test uses Byteman. Byteman is activated at the invocation of the test
* in this class, and it will have the IndexWriter fail during segments merge,
* which means the commit on the index from our part.
* The tricky issue is that the merger works in a separate thread and some
* inner private classes are involved.
*
* The Byteman rules are defined in a resources file ConcurrentMergeErrorTest.bytemanrules
*
* The goal of the test is to make sure we can catch and report the errors
* thrown by the merger via whatever is configured as Environment.ERROR_HANDLER.
*
* @author Sanne Grinovero
* @see Environment#ERROR_HANDLER
*/
@RunWith(BMUnitRunner.class)
@Category(SkipOnElasticsearch.class) // Merge schedulers are specific to the Lucene backend
public class ConcurrentMergeErrorHandledTest extends SearchTestBase {
@Test
@BMRule(targetClass = "org.apache.lucene.index.ConcurrentMergeScheduler",
targetMethod = "merge",
action = "throw new IOException(\"Byteman said: your disk is full!\")",
name = "testLuceneMergerErrorHandling")
public void testLuceneMergerErrorHandling() {
MockErrorHandler mockErrorHandler = getErrorHandlerAndAssertCorrectTypeIsUsed();
indexSingleFooInstance();
String errorMessage = mockErrorHandler.getErrorMessage();
Assert.assertEquals( "HSEARCH000117: IOException on the IndexWriter", errorMessage );
Throwable exception = mockErrorHandler.getLastException();
Assert.assertTrue( exception instanceof IOException );
Assert.assertEquals( "Byteman said: your disk is full!", exception.getMessage() );
}
private void indexSingleFooInstance() {
Session session = openSession();
Transaction transaction = session.beginTransaction();
session.persist( new Foo() );
transaction.commit();
session.close();
}
private MockErrorHandler getErrorHandlerAndAssertCorrectTypeIsUsed() {
SearchIntegrator integrator = getExtendedSearchIntegrator();
ErrorHandler errorHandler = integrator.getErrorHandler();
Assert.assertTrue( errorHandler instanceof MockErrorHandler );
return (MockErrorHandler) errorHandler;
}
@Override
public Class<?>[] getAnnotatedClasses() {
return new Class[] { Foo.class };
}
@Override
public void configure(Map<String,Object> cfg) {
cfg.put( Environment.ERROR_HANDLER, MockErrorHandler.class.getName() );
}
}