/*
* Copyright 2011 Red Hat Inc.
*
* Licensed 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.drools.persistence.session;
import static org.drools.persistence.util.PersistenceUtil.*;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import org.drools.core.command.impl.CommandBasedStatefulKnowledgeSession;
import org.drools.core.command.impl.GenericCommand;
import org.drools.core.command.impl.KnowledgeCommandContext;
import org.drools.core.common.InternalAgenda;
import org.drools.core.io.impl.ClassPathResource;
import org.drools.persistence.util.PersistenceUtil;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
import org.kie.internal.KnowledgeBase;
import org.kie.internal.KnowledgeBaseFactory;
import org.kie.internal.builder.KnowledgeBuilder;
import org.kie.internal.builder.KnowledgeBuilderFactory;
import org.kie.internal.command.Context;
import org.kie.api.io.ResourceType;
import org.kie.internal.persistence.jpa.JPAKnowledgeService;
import org.kie.api.runtime.Environment;
import org.kie.api.runtime.EnvironmentName;
import org.kie.api.runtime.KieSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@RunWith(Parameterized.class)
public class RuleFlowGroupRollbackTest {
private static Logger logger = LoggerFactory.getLogger(RuleFlowGroupRollbackTest.class);
private HashMap<String, Object> context;
private boolean locking;
@Parameters(name="{0}")
public static Collection<Object[]> persistence() {
Object[][] locking = new Object[][] {
{ OPTIMISTIC_LOCKING },
{ PESSIMISTIC_LOCKING }
};
return Arrays.asList(locking);
};
public RuleFlowGroupRollbackTest(String locking) {
this.locking = PESSIMISTIC_LOCKING.equals(locking);
}
@Before
public void setUp() throws Exception {
context = PersistenceUtil.setupWithPoolingDataSource(DROOLS_PERSISTENCE_UNIT_NAME);
}
@After
public void tearDown() {
PersistenceUtil.cleanUp(context);
}
@Test
public void testRuleFlowGroupRollback() throws Exception {
CommandBasedStatefulKnowledgeSession ksession = createSession();
List<String> list = new ArrayList<String>();
list.add("Test");
ksession.insert(list);
ksession.execute(new ActivateRuleFlowCommand("ruleflow-group"));
assertEquals(1, ksession.fireAllRules());
try {
ksession.execute(new ExceptionCommand());
fail("Process must throw an exception");
} catch (Exception e) {
logger.info("The above " + RuntimeException.class.getSimpleName() + " was expected in this test.");
}
ksession.insert(list);
ksession.execute(new ActivateRuleFlowCommand("ruleflow-group"));
assertEquals(1, ksession.fireAllRules());
}
private CommandBasedStatefulKnowledgeSession createSession() {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add( new ClassPathResource("ruleflowgroup_rollback.drl"), ResourceType.DRL );
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
if ( kbuilder.hasErrors() ) {
fail( kbuilder.getErrors().toString() );
}
kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );
Environment env = createEnvironment(context);
if( locking ) {
env.set(EnvironmentName.USE_PESSIMISTIC_LOCKING, true);
}
return (CommandBasedStatefulKnowledgeSession) JPAKnowledgeService.newStatefulKnowledgeSession( kbase, null, env );
}
@SuppressWarnings("serial")
public class ActivateRuleFlowCommand implements GenericCommand<Object> {
private String ruleFlowGroupName;
public ActivateRuleFlowCommand(String ruleFlowGroupName){
this.ruleFlowGroupName = ruleFlowGroupName;
}
public Void execute(Context context) {
KieSession ksession = ((KnowledgeCommandContext) context).getKieSession();
((InternalAgenda) ksession.getAgenda()).activateRuleFlowGroup(ruleFlowGroupName);
return null;
}
}
@SuppressWarnings("serial")
public class ExceptionCommand implements GenericCommand<Object> {
public Void execute(Context context) {
throw new RuntimeException("(Expected) exception thrown by test");
}
}
}