/*
* 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.spi.type;
import com.fasterxml.jackson.annotation.JsonValue;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.MathContext;
import java.util.Objects;
public final class SqlDecimal
{
private final BigInteger unscaledValue;
private final int precision;
private final int scale;
public SqlDecimal(BigInteger unscaledValue, int precision, int scale)
{
this.unscaledValue = unscaledValue;
this.precision = precision;
this.scale = scale;
}
@Override
public boolean equals(Object o)
{
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
SqlDecimal that = (SqlDecimal) o;
return Objects.equals(unscaledValue, that.unscaledValue);
}
public int getPrecision()
{
return precision;
}
public int getScale()
{
return scale;
}
public static SqlDecimal of(String decimalValue)
{
BigDecimal bigDecimal = new BigDecimal(decimalValue);
return new SqlDecimal(bigDecimal.unscaledValue(), bigDecimal.precision(), bigDecimal.scale());
}
public static SqlDecimal of(String unscaledValue, int precision, int scale)
{
return new SqlDecimal(new BigInteger(unscaledValue), precision, scale);
}
public static SqlDecimal of(long unscaledValue, int precision, int scale)
{
return new SqlDecimal(BigInteger.valueOf(unscaledValue), precision, scale);
}
@Override
public int hashCode()
{
return Objects.hash(unscaledValue);
}
@JsonValue
@Override
public String toString()
{
return Decimals.toString(unscaledValue, scale);
}
public BigDecimal toBigDecimal()
{
return new BigDecimal(unscaledValue, scale, new MathContext(precision));
}
public BigInteger getUnscaledValue()
{
return unscaledValue;
}
}