/*
* 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.block;
import com.facebook.presto.spi.PageBuilder;
import com.facebook.presto.spi.block.Block;
import com.facebook.presto.spi.block.BlockBuilder;
import com.facebook.presto.spi.block.BlockBuilderStatus;
import com.facebook.presto.spi.type.Type;
import com.facebook.presto.type.ArrayType;
import com.google.common.collect.ImmutableList;
import io.airlift.slice.Slices;
import org.testng.annotations.Test;
import java.util.List;
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.assertNotEquals;
import static org.testng.Assert.assertTrue;
public class TestBlockBuilder
{
@Test
public void testMultipleValuesWithNull()
{
BlockBuilder blockBuilder = BIGINT.createBlockBuilder(new BlockBuilderStatus(), 10);
blockBuilder.appendNull();
BIGINT.writeLong(blockBuilder, 42);
blockBuilder.appendNull();
BIGINT.writeLong(blockBuilder, 42);
Block block = blockBuilder.build();
assertTrue(block.isNull(0));
assertEquals(BIGINT.getLong(block, 1), 42L);
assertTrue(block.isNull(2));
assertEquals(BIGINT.getLong(block, 3), 42L);
}
@Test
public void testNewBlockBuilderLike()
{
ArrayType longArrayType = new ArrayType(BIGINT);
ArrayType arrayType = new ArrayType(longArrayType);
List<Type> channels = ImmutableList.of(BIGINT, VARCHAR, arrayType);
PageBuilder pageBuilder = new PageBuilder(channels);
BlockBuilder bigintBlockBuilder = pageBuilder.getBlockBuilder(0);
BlockBuilder varcharBlockBuilder = pageBuilder.getBlockBuilder(1);
BlockBuilder arrayBlockBuilder = pageBuilder.getBlockBuilder(2);
for (int i = 0; i < 100; i++) {
BIGINT.writeLong(bigintBlockBuilder, i);
VARCHAR.writeSlice(varcharBlockBuilder, Slices.utf8Slice("test" + i));
Block longArrayBlock = new ArrayType(BIGINT)
.createBlockBuilder(new BlockBuilderStatus(), 1)
.writeObject(BIGINT.createBlockBuilder(new BlockBuilderStatus(), 2).writeLong(i).closeEntry().writeLong(i * 2).closeEntry().build())
.closeEntry();
arrayBlockBuilder.writeObject(longArrayBlock).closeEntry();
pageBuilder.declarePosition();
}
PageBuilder newPageBuilder = pageBuilder.newPageBuilderLike();
for (int i = 0; i < channels.size(); i++) {
assertEquals(newPageBuilder.getType(i), pageBuilder.getType(i));
// we should get new block builder instances
assertNotEquals(pageBuilder.getBlockBuilder(i), newPageBuilder.getBlockBuilder(i));
assertEquals(newPageBuilder.getBlockBuilder(i).getPositionCount(), 0);
assertTrue(newPageBuilder.getBlockBuilder(i).getRetainedSizeInBytes() < pageBuilder.getBlockBuilder(i).getRetainedSizeInBytes());
}
}
}