package org.drools.persistence.session;
import static org.drools.persistence.util.PersistenceUtil.*;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import junit.framework.TestCase;
import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseFactory;
import org.drools.builder.KnowledgeBuilder;
import org.drools.builder.KnowledgeBuilderFactory;
import org.drools.builder.ResourceType;
import org.drools.command.Context;
import org.drools.command.impl.CommandBasedStatefulKnowledgeSession;
import org.drools.command.impl.GenericCommand;
import org.drools.command.impl.KnowledgeCommandContext;
import org.drools.io.impl.ClassPathResource;
import org.drools.persistence.jpa.JPAKnowledgeService;
import org.drools.runtime.Environment;
import org.drools.runtime.EnvironmentName;
import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.runtime.rule.impl.InternalAgenda;
import bitronix.tm.TransactionManagerServices;
import bitronix.tm.resource.jdbc.PoolingDataSource;
public class RuleFlowGroupRollbackTest extends TestCase {
PoolingDataSource ds1;
@Override
protected void setUp() throws Exception {
ds1 = setupPoolingDataSource();
ds1.init();
}
@Override
protected void tearDown() {
ds1.close();
}
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) {
e.printStackTrace();
}
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() );
EntityManagerFactory emf = Persistence.createEntityManagerFactory( "org.drools.persistence.jpa" );
Environment env = KnowledgeBaseFactory.newEnvironment();
env.set( EnvironmentName.ENTITY_MANAGER_FACTORY, emf );
env.set( EnvironmentName.TRANSACTION_MANAGER, TransactionManagerServices.getTransactionManager() );
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) {
StatefulKnowledgeSession ksession = ((KnowledgeCommandContext) context).getStatefulKnowledgesession();
((InternalAgenda) ksession.getAgenda()).activateRuleFlowGroup(ruleFlowGroupName);
return null;
}
}
@SuppressWarnings("serial")
public class ExceptionCommand implements GenericCommand<Object> {
public Void execute(Context context) {
throw new RuntimeException();
}
}
}