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The JSON/Java Binding API is designed to bind JSON documents to Java objects. More specifically,
the JSON/Java Binding API provides a way for JSON objects whose structure is expressed in the
JSON Schema Definition Language to be parsed and marshaled, to and from Java objects of
strongly-typed classes. The JSON/Java Binding API can also be used to validate JSON documents as
they are parsed from text or marshaled from Java objects against a JSD. Thus, the JSON/Java
Binding API is a reference implementation of the validation and binding functionalities of the
JSON Schema Definition Language.
/* Copyright (c) 2018 Jsonx
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* You should have received a copy of The MIT License (MIT) along with this
* program. If not, see .
*/
package org.jsonx;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.math.BigDecimal;
import java.math.BigInteger;
import org.jsonx.ArrayValidator.Relation;
import org.jsonx.ArrayValidator.Relations;
import org.libj.util.Annotations;
class NumberCodec extends PrimitiveCodec {
static Number decodeArray(final Form form, final String token) {
final char ch;
if ((ch = token.charAt(0)) != '-' && (ch < '0' || '9' < ch))
return null;
return NumberCodec.decodeObject(form, token);
}
static Number decodeObject(final Form form, final String json) {
try {
return form == Form.INTEGER ? new BigInteger(json) : new BigDecimal(json);
}
catch (final NumberFormatException e) {
return null;
}
}
static Error encodeArray(final Annotation annotation, final Form form, final String range, final Object object, final int index, final Relations relations, final boolean validate) {
if (!(object instanceof Number))
return Error.CONTENT_NOT_EXPECTED(object, -1);
if (validate) {
final Error error = NumberCodec.validate(annotation, (Number)object, form, range);
if (error != null)
return error;
}
relations.set(index, new Relation(object, annotation));
return null;
}
static Object encodeObject(final Annotation annotation, final Form form, final String range, final Number object, final boolean validate) throws EncodeException, ValidationException {
if (validate) {
final Error error = validate(annotation, object, form, range);
if (error != null)
return error;
}
return String.valueOf(object);
}
private static Error validate(final Annotation annotation, final Number object, final Form form, final String range) {
if (form == Form.INTEGER && object.longValue() != object.doubleValue())
return Error.INTEGER_NOT_VALID(Form.class, object, -1);
if (range.length() > 0) {
try {
if (!new Range(range).isValid(object))
return Error.RANGE_NOT_MATCHED(range, object, -1);
}
catch (final ParseException e) {
throw new ValidationException("Invalid range attribute: " + Annotations.toSortedString(annotation, JsdUtil.ATTRIBUTES), e);
}
}
return null;
}
private final Form form;
private final Range range;
NumberCodec(final NumberProperty property, final Field field) {
super(field, property.name(), property.nullable(), property.use());
this.form = property.form();
if (property.range().length() == 0) {
this.range = null;
}
else {
try {
this.range = new Range(property.range());
}
catch (final ParseException e) {
throw new ValidationException("Invalid range attribute: " + Annotations.toSortedString(property, JsdUtil.ATTRIBUTES));
}
}
}
@Override
boolean test(final char firstChar) {
return firstChar == '-' || '0' <= firstChar && firstChar <= '9';
}
@Override
Error validate(final String json, final int offset) {
if (form != Form.REAL) {
final int dot = json.indexOf('.');
if (dot != -1)
return Error.INTEGER_NOT_VALID(Form.class, json, offset);
}
// FIXME: decode() is done here and in the caller's scope
return range != null && !range.isValid(parse(json)) ? Error.RANGE_NOT_MATCHED(range, json, offset) : null;
}
@Override
Number parse(final String json) {
return decodeObject(form, json);
}
@Override
String elementName() {
return "number";
}
}