/
TestRollbackTask.java
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/
TestRollbackTask.java
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/*
* 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 io.prestosql.execution;
import io.prestosql.Session;
import io.prestosql.Session.SessionBuilder;
import io.prestosql.execution.warnings.WarningCollector;
import io.prestosql.metadata.MetadataManager;
import io.prestosql.security.AllowAllAccessControl;
import io.prestosql.spi.PrestoException;
import io.prestosql.spi.resourcegroups.ResourceGroupId;
import io.prestosql.sql.tree.Rollback;
import io.prestosql.transaction.TransactionId;
import io.prestosql.transaction.TransactionManager;
import org.testng.annotations.AfterClass;
import org.testng.annotations.Test;
import java.net.URI;
import java.util.Optional;
import java.util.concurrent.ExecutorService;
import static io.airlift.concurrent.MoreFutures.getFutureValue;
import static io.airlift.concurrent.Threads.daemonThreadsNamed;
import static io.prestosql.plugin.tpch.TpchMetadata.TINY_SCHEMA_NAME;
import static io.prestosql.spi.StandardErrorCode.NOT_IN_TRANSACTION;
import static io.prestosql.testing.TestingSession.testSessionBuilder;
import static io.prestosql.transaction.InMemoryTransactionManager.createTestTransactionManager;
import static java.util.Collections.emptyList;
import static java.util.concurrent.Executors.newCachedThreadPool;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;
public class TestRollbackTask
{
private final MetadataManager metadata = MetadataManager.createTestMetadataManager();
private final ExecutorService executor = newCachedThreadPool(daemonThreadsNamed("stage-executor-%s"));
@AfterClass(alwaysRun = true)
public void tearDown()
{
executor.shutdownNow();
}
@Test
public void testRollback()
{
TransactionManager transactionManager = createTestTransactionManager();
Session session = sessionBuilder()
.setTransactionId(transactionManager.beginTransaction(false))
.build();
QueryStateMachine stateMachine = createQueryStateMachine("ROLLBACK", session, transactionManager);
assertTrue(stateMachine.getSession().getTransactionId().isPresent());
assertEquals(transactionManager.getAllTransactionInfos().size(), 1);
getFutureValue(new RollbackTask().execute(new Rollback(), transactionManager, metadata, new AllowAllAccessControl(), stateMachine, emptyList()));
assertTrue(stateMachine.getQueryInfo(Optional.empty()).isClearTransactionId());
assertFalse(stateMachine.getQueryInfo(Optional.empty()).getStartedTransactionId().isPresent());
assertTrue(transactionManager.getAllTransactionInfos().isEmpty());
}
@Test
public void testNoTransactionRollback()
{
TransactionManager transactionManager = createTestTransactionManager();
Session session = sessionBuilder()
.build();
QueryStateMachine stateMachine = createQueryStateMachine("ROLLBACK", session, transactionManager);
try {
getFutureValue(new RollbackTask().execute(new Rollback(), transactionManager, metadata, new AllowAllAccessControl(), stateMachine, emptyList()));
fail();
}
catch (PrestoException e) {
assertEquals(e.getErrorCode(), NOT_IN_TRANSACTION.toErrorCode());
}
assertFalse(stateMachine.getQueryInfo(Optional.empty()).isClearTransactionId());
assertFalse(stateMachine.getQueryInfo(Optional.empty()).getStartedTransactionId().isPresent());
assertTrue(transactionManager.getAllTransactionInfos().isEmpty());
}
@Test
public void testUnknownTransactionRollback()
{
TransactionManager transactionManager = createTestTransactionManager();
Session session = sessionBuilder()
.setTransactionId(TransactionId.create()) // Use a random transaction ID that is unknown to the system
.build();
QueryStateMachine stateMachine = createQueryStateMachine("ROLLBACK", session, transactionManager);
getFutureValue(new RollbackTask().execute(new Rollback(), transactionManager, metadata, new AllowAllAccessControl(), stateMachine, emptyList()));
assertTrue(stateMachine.getQueryInfo(Optional.empty()).isClearTransactionId()); // Still issue clear signal
assertFalse(stateMachine.getQueryInfo(Optional.empty()).getStartedTransactionId().isPresent());
assertTrue(transactionManager.getAllTransactionInfos().isEmpty());
}
private QueryStateMachine createQueryStateMachine(String query, Session session, TransactionManager transactionManager)
{
return QueryStateMachine.begin(
query,
Optional.empty(),
session,
URI.create("fake://uri"),
new ResourceGroupId("test"),
true,
transactionManager,
new AllowAllAccessControl(),
executor,
metadata,
WarningCollector.NOOP);
}
private static SessionBuilder sessionBuilder()
{
return testSessionBuilder()
.setCatalog("tpch")
.setSchema(TINY_SCHEMA_NAME);
}
}