/*
* 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.type;
import com.facebook.presto.spi.PrestoException;
import com.facebook.presto.spi.function.IsNull;
import com.facebook.presto.spi.function.LiteralParameters;
import com.facebook.presto.spi.function.ScalarOperator;
import com.facebook.presto.spi.function.SqlType;
import com.facebook.presto.spi.type.SmallintType;
import com.facebook.presto.spi.type.StandardTypes;
import com.google.common.primitives.Shorts;
import com.google.common.primitives.SignedBytes;
import io.airlift.slice.Slice;
import static com.facebook.presto.spi.StandardErrorCode.DIVISION_BY_ZERO;
import static com.facebook.presto.spi.StandardErrorCode.NUMERIC_VALUE_OUT_OF_RANGE;
import static com.facebook.presto.spi.function.OperatorType.ADD;
import static com.facebook.presto.spi.function.OperatorType.BETWEEN;
import static com.facebook.presto.spi.function.OperatorType.CAST;
import static com.facebook.presto.spi.function.OperatorType.DIVIDE;
import static com.facebook.presto.spi.function.OperatorType.EQUAL;
import static com.facebook.presto.spi.function.OperatorType.GREATER_THAN;
import static com.facebook.presto.spi.function.OperatorType.GREATER_THAN_OR_EQUAL;
import static com.facebook.presto.spi.function.OperatorType.HASH_CODE;
import static com.facebook.presto.spi.function.OperatorType.IS_DISTINCT_FROM;
import static com.facebook.presto.spi.function.OperatorType.LESS_THAN;
import static com.facebook.presto.spi.function.OperatorType.LESS_THAN_OR_EQUAL;
import static com.facebook.presto.spi.function.OperatorType.MODULUS;
import static com.facebook.presto.spi.function.OperatorType.MULTIPLY;
import static com.facebook.presto.spi.function.OperatorType.NEGATION;
import static com.facebook.presto.spi.function.OperatorType.NOT_EQUAL;
import static com.facebook.presto.spi.function.OperatorType.SATURATED_FLOOR_CAST;
import static com.facebook.presto.spi.function.OperatorType.SUBTRACT;
import static io.airlift.slice.Slices.utf8Slice;
import static java.lang.Float.floatToRawIntBits;
import static java.lang.String.format;
import static java.lang.String.valueOf;
public final class SmallintOperators
{
private SmallintOperators()
{
}
@ScalarOperator(ADD)
@SqlType(StandardTypes.SMALLINT)
public static long add(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
{
try {
return Shorts.checkedCast(left + right);
}
catch (IllegalArgumentException e) {
throw new PrestoException(NUMERIC_VALUE_OUT_OF_RANGE, format("smallint addition overflow: %s + %s", left, right), e);
}
}
@ScalarOperator(SUBTRACT)
@SqlType(StandardTypes.SMALLINT)
public static long subtract(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
{
try {
return Shorts.checkedCast(left - right);
}
catch (IllegalArgumentException e) {
throw new PrestoException(NUMERIC_VALUE_OUT_OF_RANGE, format("smallint subtraction overflow: %s - %s", left, right), e);
}
}
@ScalarOperator(MULTIPLY)
@SqlType(StandardTypes.SMALLINT)
public static long multiply(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
{
try {
return Shorts.checkedCast(left * right);
}
catch (IllegalArgumentException e) {
throw new PrestoException(NUMERIC_VALUE_OUT_OF_RANGE, format("smallint multiplication overflow: %s * %s", left, right), e);
}
}
@ScalarOperator(DIVIDE)
@SqlType(StandardTypes.SMALLINT)
public static long divide(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
{
try {
return left / right;
}
catch (ArithmeticException e) {
throw new PrestoException(DIVISION_BY_ZERO, e);
}
}
@ScalarOperator(MODULUS)
@SqlType(StandardTypes.SMALLINT)
public static long modulus(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
{
try {
return left % right;
}
catch (ArithmeticException e) {
throw new PrestoException(DIVISION_BY_ZERO, e);
}
}
@ScalarOperator(NEGATION)
@SqlType(StandardTypes.SMALLINT)
public static long negate(@SqlType(StandardTypes.SMALLINT) long value)
{
try {
return Shorts.checkedCast(-value);
}
catch (IllegalArgumentException e) {
throw new PrestoException(NUMERIC_VALUE_OUT_OF_RANGE, "smallint negation overflow: " + value, e);
}
}
@ScalarOperator(EQUAL)
@SqlType(StandardTypes.BOOLEAN)
public static boolean equal(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
{
return left == right;
}
@ScalarOperator(NOT_EQUAL)
@SqlType(StandardTypes.BOOLEAN)
public static boolean notEqual(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
{
return left != right;
}
@ScalarOperator(LESS_THAN)
@SqlType(StandardTypes.BOOLEAN)
public static boolean lessThan(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
{
return left < right;
}
@ScalarOperator(LESS_THAN_OR_EQUAL)
@SqlType(StandardTypes.BOOLEAN)
public static boolean lessThanOrEqual(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
{
return left <= right;
}
@ScalarOperator(GREATER_THAN)
@SqlType(StandardTypes.BOOLEAN)
public static boolean greaterThan(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
{
return left > right;
}
@ScalarOperator(GREATER_THAN_OR_EQUAL)
@SqlType(StandardTypes.BOOLEAN)
public static boolean greaterThanOrEqual(@SqlType(StandardTypes.SMALLINT) long left, @SqlType(StandardTypes.SMALLINT) long right)
{
return left >= right;
}
@ScalarOperator(BETWEEN)
@SqlType(StandardTypes.BOOLEAN)
public static boolean between(@SqlType(StandardTypes.SMALLINT) long value, @SqlType(StandardTypes.SMALLINT) long min, @SqlType(StandardTypes.SMALLINT) long max)
{
return min <= value && value <= max;
}
@ScalarOperator(CAST)
@SqlType(StandardTypes.BIGINT)
public static long castToBigint(@SqlType(StandardTypes.SMALLINT) long value)
{
return value;
}
@ScalarOperator(CAST)
@SqlType(StandardTypes.INTEGER)
public static long castToInteger(@SqlType(StandardTypes.SMALLINT) long value)
{
return value;
}
@ScalarOperator(CAST)
@SqlType(StandardTypes.TINYINT)
public static long castToTinyint(@SqlType(StandardTypes.SMALLINT) long value)
{
try {
return SignedBytes.checkedCast(value);
}
catch (IllegalArgumentException e) {
throw new PrestoException(NUMERIC_VALUE_OUT_OF_RANGE, "Out of range for tinyint: " + value, e);
}
}
@ScalarOperator(CAST)
@SqlType(StandardTypes.BOOLEAN)
public static boolean castToBoolean(@SqlType(StandardTypes.SMALLINT) long value)
{
return value != 0;
}
@ScalarOperator(CAST)
@SqlType(StandardTypes.DOUBLE)
public static double castToDouble(@SqlType(StandardTypes.SMALLINT) long value)
{
return value;
}
@ScalarOperator(CAST)
@SqlType(StandardTypes.REAL)
public static long castToReal(@SqlType(StandardTypes.SMALLINT) long value)
{
return (long) floatToRawIntBits((float) value);
}
@ScalarOperator(CAST)
@LiteralParameters("x")
@SqlType("varchar(x)")
public static Slice castToVarchar(@SqlType(StandardTypes.SMALLINT) long value)
{
// todo optimize me
return utf8Slice(valueOf(value));
}
@ScalarOperator(HASH_CODE)
@SqlType(StandardTypes.BIGINT)
public static long hashCode(@SqlType(StandardTypes.SMALLINT) long value)
{
return SmallintType.hash((short) value);
}
@ScalarOperator(IS_DISTINCT_FROM)
@SqlType(StandardTypes.BOOLEAN)
public static boolean isDistinctFrom(
@SqlType(StandardTypes.SMALLINT) long left,
@IsNull boolean leftNull,
@SqlType(StandardTypes.SMALLINT) long right,
@IsNull boolean rightNull)
{
if (leftNull != rightNull) {
return true;
}
if (leftNull) {
return false;
}
return notEqual(left, right);
}
@ScalarOperator(SATURATED_FLOOR_CAST)
@SqlType(StandardTypes.TINYINT)
public static long saturatedFloorCastToTinyint(@SqlType(StandardTypes.SMALLINT) long value)
{
return SignedBytes.saturatedCast(value);
}
}