/*
* 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 com.facebook.presto.execution;
import com.facebook.presto.Session;
import com.facebook.presto.metadata.MetadataManager;
import com.facebook.presto.security.AccessControl;
import com.facebook.presto.security.AccessControlManager;
import com.facebook.presto.security.AllowAllAccessControl;
import com.facebook.presto.spi.PrestoException;
import com.facebook.presto.spi.QueryId;
import com.facebook.presto.sql.parser.SqlParser;
import com.facebook.presto.sql.tree.AllColumns;
import com.facebook.presto.sql.tree.Execute;
import com.facebook.presto.sql.tree.Prepare;
import com.facebook.presto.sql.tree.QualifiedName;
import com.facebook.presto.sql.tree.Query;
import com.facebook.presto.sql.tree.Statement;
import com.facebook.presto.transaction.TransactionManager;
import com.google.common.collect.ImmutableMap;
import org.testng.annotations.AfterClass;
import org.testng.annotations.Test;
import java.net.URI;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import static com.facebook.presto.SessionTestUtils.TEST_SESSION;
import static com.facebook.presto.metadata.MetadataManager.createTestMetadataManager;
import static com.facebook.presto.spi.StandardErrorCode.NOT_SUPPORTED;
import static com.facebook.presto.sql.QueryUtil.selectList;
import static com.facebook.presto.sql.QueryUtil.simpleQuery;
import static com.facebook.presto.sql.QueryUtil.table;
import static com.facebook.presto.testing.TestingSession.testSessionBuilder;
import static com.facebook.presto.transaction.TransactionManager.createTestTransactionManager;
import static io.airlift.concurrent.Threads.daemonThreadsNamed;
import static java.util.Collections.emptyList;
import static java.util.concurrent.Executors.newCachedThreadPool;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.fail;
public class TestPrepareTask
{
private final MetadataManager metadata = createTestMetadataManager();
private final ExecutorService executor = newCachedThreadPool(daemonThreadsNamed("test-%s"));
@AfterClass(alwaysRun = true)
public void tearDown()
throws Exception
{
executor.shutdownNow();
}
@Test
public void testPrepare()
{
Query query = simpleQuery(selectList(new AllColumns()), table(QualifiedName.of("foo")));
String sqlString = "PREPARE my_query FROM SELECT * FROM foo";
Map<String, String> statements = executePrepare("my_query", query, sqlString, TEST_SESSION);
assertEquals(statements, ImmutableMap.of("my_query", "SELECT *\nFROM\n foo\n"));
}
@Test
public void testPrepareNameExists()
{
Session session = testSessionBuilder()
.addPreparedStatement("my_query", "SELECT bar, baz from foo")
.build();
Query query = simpleQuery(selectList(new AllColumns()), table(QualifiedName.of("foo")));
String sqlString = "PREPARE my_query FROM SELECT * FROM foo";
Map<String, String> statements = executePrepare("my_query", query, sqlString, session);
assertEquals(statements, ImmutableMap.of("my_query", "SELECT *\nFROM\n foo\n"));
}
@Test
public void testPrepareInvalidStatement()
{
Statement statement = new Execute("foo", emptyList());
String sqlString = "PREPARE my_query FROM EXECUTE foo";
try {
executePrepare("my_query", statement, sqlString, TEST_SESSION);
fail("expected exception");
}
catch (PrestoException e) {
assertEquals(e.getErrorCode(), NOT_SUPPORTED.toErrorCode());
assertEquals(e.getMessage(), "Invalid statement type for prepared statement: EXECUTE");
}
}
private Map<String, String> executePrepare(String statementName, Statement statement, String sqlString, Session session)
{
TransactionManager transactionManager = createTestTransactionManager();
AccessControl accessControl = new AccessControlManager(transactionManager);
QueryStateMachine stateMachine = QueryStateMachine.begin(new QueryId("query"), sqlString, session, URI.create("fake://uri"), false, transactionManager, accessControl, executor, metadata);
Prepare prepare = new Prepare(statementName, statement);
new PrepareTask(new SqlParser()).execute(prepare, transactionManager, metadata, new AllowAllAccessControl(), stateMachine, emptyList());
return stateMachine.getAddedPreparedStatements();
}
}