/*
* 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.plugin.jdbc;
import com.facebook.presto.spi.RecordCursor;
import com.facebook.presto.spi.RecordSet;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import java.util.LinkedHashMap;
import java.util.Map;
import static com.facebook.presto.spi.type.BigintType.BIGINT;
import static com.facebook.presto.spi.type.VarcharType.VARCHAR;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
@Test
public class TestJdbcRecordSet
{
private TestingDatabase database;
private JdbcClient jdbcClient;
private JdbcSplit split;
private Map<String, JdbcColumnHandle> columnHandles;
@BeforeClass
public void setUp()
throws Exception
{
database = new TestingDatabase();
jdbcClient = database.getJdbcClient();
split = database.getSplit("example", "numbers");
columnHandles = database.getColumnHandles("example", "numbers");
}
@AfterClass
public void tearDown()
throws Exception
{
database.close();
}
@Test
public void testGetColumnTypes()
throws Exception
{
RecordSet recordSet = new JdbcRecordSet(jdbcClient, split, ImmutableList.of(
new JdbcColumnHandle("test", "text", VARCHAR, 0),
new JdbcColumnHandle("test", "value", BIGINT, 1)));
assertEquals(recordSet.getColumnTypes(), ImmutableList.of(VARCHAR, BIGINT));
recordSet = new JdbcRecordSet(jdbcClient, split, ImmutableList.of(
new JdbcColumnHandle("test", "value", BIGINT, 1),
new JdbcColumnHandle("test", "text", VARCHAR, 0)));
assertEquals(recordSet.getColumnTypes(), ImmutableList.of(BIGINT, VARCHAR));
recordSet = new JdbcRecordSet(jdbcClient, split, ImmutableList.of(
new JdbcColumnHandle("test", "value", BIGINT, 1),
new JdbcColumnHandle("test", "value", BIGINT, 1),
new JdbcColumnHandle("test", "text", VARCHAR, 0)));
assertEquals(recordSet.getColumnTypes(), ImmutableList.of(BIGINT, BIGINT, VARCHAR));
recordSet = new JdbcRecordSet(jdbcClient, split, ImmutableList.<JdbcColumnHandle>of());
assertEquals(recordSet.getColumnTypes(), ImmutableList.of());
}
@Test
public void testCursorSimple()
throws Exception
{
RecordSet recordSet = new JdbcRecordSet(jdbcClient, split, ImmutableList.of(
columnHandles.get("text"),
columnHandles.get("value")));
try (RecordCursor cursor = recordSet.cursor()) {
assertEquals(cursor.getType(0), VARCHAR);
assertEquals(cursor.getType(1), BIGINT);
Map<String, Long> data = new LinkedHashMap<>();
while (cursor.advanceNextPosition()) {
data.put(cursor.getSlice(0).toStringUtf8(), cursor.getLong(1));
assertFalse(cursor.isNull(0));
assertFalse(cursor.isNull(1));
}
assertEquals(data, ImmutableMap.<String, Long>builder()
.put("one", 1L)
.put("two", 2L)
.put("three", 3L)
.put("ten", 10L)
.put("eleven", 11L)
.put("twelve", 12L)
.build());
}
}
@Test
public void testCursorMixedOrder()
throws Exception
{
RecordSet recordSet = new JdbcRecordSet(jdbcClient, split, ImmutableList.of(
columnHandles.get("value"),
columnHandles.get("value"),
columnHandles.get("text")));
try (RecordCursor cursor = recordSet.cursor()) {
assertEquals(cursor.getType(0), BIGINT);
assertEquals(cursor.getType(1), BIGINT);
assertEquals(cursor.getType(2), VARCHAR);
Map<String, Long> data = new LinkedHashMap<>();
while (cursor.advanceNextPosition()) {
assertEquals(cursor.getLong(0), cursor.getLong(1));
data.put(cursor.getSlice(2).toStringUtf8(), cursor.getLong(0));
}
assertEquals(data, ImmutableMap.<String, Long>builder()
.put("one", 1L)
.put("two", 2L)
.put("three", 3L)
.put("ten", 10L)
.put("eleven", 11L)
.put("twelve", 12L)
.build());
}
}
}