/*
* 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.ConnectorSession;
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 java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import static com.facebook.presto.spi.type.BigintType.BIGINT;
import static com.facebook.presto.spi.type.BooleanType.BOOLEAN;
import static com.facebook.presto.spi.type.DoubleType.DOUBLE;
import static com.facebook.presto.spi.type.TimeZoneKey.UTC_KEY;
import static com.facebook.presto.spi.type.VarcharType.VARCHAR;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.testng.Assert.assertEquals;
public final class BlockAssertions
{
public static final ConnectorSession SESSION = new ConnectorSession("user", "schema", UTC_KEY, Locale.ENGLISH, System.currentTimeMillis());
private BlockAssertions()
{
}
public static Object getOnlyValue(Type type, Block block)
{
assertEquals(block.getPositionCount(), 1, "Block positions");
return type.getObjectValue(SESSION, block, 0);
}
public static List<Object> toValues(Type type, Iterable<Block> blocks)
{
List<Object> values = new ArrayList<>();
for (Block block : blocks) {
for (int position = 0; position < block.getPositionCount(); position++) {
values.add(type.getObjectValue(SESSION, block, position));
}
}
return Collections.unmodifiableList(values);
}
public static List<Object> toValues(Type type, Block block)
{
List<Object> values = new ArrayList<>();
for (int position = 0; position < block.getPositionCount(); position++) {
values.add(type.getObjectValue(SESSION, block, position));
}
return Collections.unmodifiableList(values);
}
public static void assertBlockEquals(Type type, Block actual, Block expected)
{
for (int position = 0; position < actual.getPositionCount(); position++) {
assertEquals(type.getObjectValue(SESSION, actual, position), type.getObjectValue(SESSION, expected, position));
}
}
public static Block createStringsBlock(String... values)
{
checkNotNull(values, "varargs 'values' is null");
return createStringsBlock(Arrays.asList(values));
}
public static Block createStringsBlock(Iterable<String> values)
{
BlockBuilder builder = VARCHAR.createBlockBuilder(new BlockBuilderStatus());
for (String value : values) {
if (value == null) {
builder.appendNull();
}
else {
VARCHAR.writeString(builder, value);
}
}
return builder.build();
}
public static Block createStringSequenceBlock(int start, int end)
{
BlockBuilder builder = VARCHAR.createBlockBuilder(new BlockBuilderStatus());
for (int i = start; i < end; i++) {
VARCHAR.writeString(builder, String.valueOf(i));
}
return builder.build();
}
public static Block createBooleansBlock(Boolean... values)
{
checkNotNull(values, "varargs 'values' is null");
return createBooleansBlock(Arrays.asList(values));
}
public static Block createBooleansBlock(Boolean value, int count)
{
return createBooleansBlock(Collections.nCopies(count, value));
}
public static Block createBooleansBlock(Iterable<Boolean> values)
{
BlockBuilder builder = BOOLEAN.createBlockBuilder(new BlockBuilderStatus());
for (Boolean value : values) {
if (value == null) {
builder.appendNull();
}
else {
BOOLEAN.writeBoolean(builder, value);
}
}
return builder.build();
}
// This method makes it easy to create blocks without having to add an L to every value
public static Block createLongsBlock(int... values)
{
BlockBuilder builder = BIGINT.createBlockBuilder(new BlockBuilderStatus());
for (int value : values) {
BIGINT.writeLong(builder, (long) value);
}
return builder.build();
}
public static Block createLongsBlock(Long... values)
{
checkNotNull(values, "varargs 'values' is null");
return createLongsBlock(Arrays.asList(values));
}
public static Block createLongsBlock(Iterable<Long> values)
{
BlockBuilder builder = BIGINT.createBlockBuilder(new BlockBuilderStatus());
for (Long value : values) {
if (value == null) {
builder.appendNull();
}
else {
BIGINT.writeLong(builder, value);
}
}
return builder.build();
}
public static Block createLongSequenceBlock(int start, int end)
{
BlockBuilder builder = BIGINT.createBlockBuilder(new BlockBuilderStatus());
for (int i = start; i < end; i++) {
BIGINT.writeLong(builder, i);
}
return builder.build();
}
public static Block createBooleanSequenceBlock(int start, int end)
{
BlockBuilder builder = BOOLEAN.createBlockBuilder(new BlockBuilderStatus());
for (int i = start; i < end; i++) {
BOOLEAN.writeBoolean(builder, i % 2 == 0);
}
return builder.build();
}
public static Block createDoublesBlock(Double... values)
{
checkNotNull(values, "varargs 'values' is null");
return createDoublesBlock(Arrays.asList(values));
}
public static Block createDoublesBlock(Iterable<Double> values)
{
BlockBuilder builder = DOUBLE.createBlockBuilder(new BlockBuilderStatus());
for (Double value : values) {
if (value == null) {
builder.appendNull();
}
else {
DOUBLE.writeDouble(builder, value);
}
}
return builder.build();
}
public static Block createDoubleSequenceBlock(int start, int end)
{
BlockBuilder builder = DOUBLE.createBlockBuilder(new BlockBuilderStatus());
for (int i = start; i < end; i++) {
DOUBLE.writeDouble(builder, (double) i);
}
return builder.build();
}
}