001/*
002 * Portions of this software was developed by employees of the National Institute
003 * of Standards and Technology (NIST), an agency of the Federal Government and is
004 * being made available as a public service. Pursuant to title 17 United States
005 * Code Section 105, works of NIST employees are not subject to copyright
006 * protection in the United States. This software may be subject to foreign
007 * copyright. Permission in the United States and in foreign countries, to the
008 * extent that NIST may hold copyright, to use, copy, modify, create derivative
009 * works, and distribute this software and its documentation without fee is hereby
010 * granted on a non-exclusive basis, provided that this notice and disclaimer
011 * of warranty appears in all copies.
012 *
013 * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
014 * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
015 * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
016 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
017 * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
018 * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE.  IN NO EVENT
019 * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
020 * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
021 * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
022 * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
023 * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
024 * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
025 */
026
027package gov.nist.secauto.metaschema.core.metapath.item.atomic;
028
029import java.math.BigDecimal;
030import java.math.BigInteger;
031import java.math.MathContext;
032
033import edu.umd.cs.findbugs.annotations.NonNull;
034
035public abstract class AbstractIntegerItem
036    extends AbstractNumericItem<BigInteger>
037    implements IIntegerItem {
038  protected AbstractIntegerItem(@NonNull BigInteger value) {
039    super(value);
040  }
041
042  @Override
043  public boolean toEffectiveBoolean() {
044    return !BigInteger.ZERO.equals(
045        getValue());
046  }
047
048  @Override
049  public BigDecimal asDecimal() {
050    return new BigDecimal(
051        getValue(),
052        MathContext.DECIMAL64);
053  }
054
055  @Override
056  public BigInteger asInteger() {
057    return getValue();
058  }
059
060  @SuppressWarnings("null")
061  @Override
062  public IIntegerItem abs() {
063    BigInteger value = getValue();
064    int signum = value.signum();
065
066    IIntegerItem retval;
067    if (signum > -1) {
068      retval = this;
069    } else {
070      retval = IIntegerItem.valueOf(
071          getValue().abs());
072    }
073    return retval;
074  }
075}