001/**
002 * The MIT License (MIT)
003 *
004 * Copyright (c) 2015-2016 decimal4j (tools4j), Marco Terzer
005 *
006 * Permission is hereby granted, free of charge, to any person obtaining a copy
007 * of this software and associated documentation files (the "Software"), to deal
008 * in the Software without restriction, including without limitation the rights
009 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
010 * copies of the Software, and to permit persons to whom the Software is
011 * furnished to do so, subject to the following conditions:
012 *
013 * The above copyright notice and this permission notice shall be included in all
014 * copies or substantial portions of the Software.
015 *
016 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
017 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
018 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
019 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
020 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
021 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
022 * SOFTWARE.
023 */
024package org.decimal4j.arithmetic;
025
026import java.io.IOException;
027
028import org.decimal4j.scale.ScaleMetrics;
029
030/**
031 * Base class for arithmetic implementations with overflow check for scales
032 * other than zero.
033 */
034abstract public class AbstractCheckedScaleNfArithmetic extends AbstractCheckedArithmetic {
035
036        private final ScaleMetrics scaleMetrics;
037
038        /**
039         * Constructor with scale metrics for this arithmetic.
040         * 
041         * @param scaleMetrics
042         *            the scale metrics
043         */
044        public AbstractCheckedScaleNfArithmetic(ScaleMetrics scaleMetrics) {
045                this.scaleMetrics = scaleMetrics;
046        }
047
048        @Override
049        public final ScaleMetrics getScaleMetrics() {
050                return scaleMetrics;
051        }
052
053        @Override
054        public final int getScale() {
055                return scaleMetrics.getScale();
056        }
057
058        @Override
059        public final long one() {
060                return scaleMetrics.getScaleFactor();
061        }
062
063        @Override
064        public final long addLong(long uDecimal, long lValue) {
065                return Add.addUnscaledLongChecked(this, uDecimal, lValue);
066        }
067
068        @Override
069        public final long subtractLong(long uDecimal, long lValue) {
070                return Sub.subtractUnscaledLongChecked(this, uDecimal, lValue);
071        }
072
073        @Override
074        public final String toString(long uDecimal) {
075                return StringConversion.unscaledToString(this, uDecimal);
076        }
077        
078        @Override
079        public final void toString(long uDecimal, Appendable appendable) throws IOException {
080                StringConversion.unscaledToString(this, uDecimal, appendable);
081        }
082}