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.datatype.adapter; 028 029import com.fasterxml.jackson.core.JsonGenerator; 030import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatTypes; 031 032import gov.nist.secauto.metaschema.core.datatype.AbstractDataTypeAdapter; 033import gov.nist.secauto.metaschema.core.metapath.item.atomic.IIntegerItem; 034 035import java.io.IOException; 036import java.math.BigInteger; 037 038/** 039 * Provides a common base class for integer-based data types. 040 * <p> 041 * An underlying {@link BigInteger} is used to support arbitrary sized integers. 042 * 043 * @param <ITEM_TYPE> 044 * the Metapath item type supported by the adapter 045 */ 046public abstract class AbstractIntegerAdapter<ITEM_TYPE extends IIntegerItem> 047 extends AbstractDataTypeAdapter<BigInteger, ITEM_TYPE> { 048 049 /** 050 * Construct a new integer-based adapter. 051 */ 052 protected AbstractIntegerAdapter() { 053 super(BigInteger.class); 054 } 055 056 @Override 057 public JsonFormatTypes getJsonRawType() { 058 return JsonFormatTypes.INTEGER; 059 } 060 061 @Override 062 public BigInteger parse(String value) { 063 return new BigInteger(value); 064 } 065 066 @Override 067 public void writeJsonValue(Object value, JsonGenerator generator) throws IOException { 068 try { 069 generator.writeNumber((BigInteger) value); 070 } catch (ClassCastException ex) { 071 throw new IOException(ex); 072 } 073 } 074 075 @Override 076 public BigInteger copy(Object obj) { 077 // a BigInteger is immutable 078 return (BigInteger) obj; 079 } 080}