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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.util.regex.PatternSyntaxException;
import org.openjax.json.JsonStrings;
import org.jsonx.ArrayValidator.Relation;
import org.jsonx.ArrayValidator.Relations;
class StringCodec extends PrimitiveCodec {
static String decodeArray(final String token) {
return token.charAt(0) == '"' && token.charAt(token.length() - 1) == '"' ? StringCodec.decodeObject(token) : null;
}
static String decodeObject(final String json) {
final StringBuilder unescaped = new StringBuilder(json.length() - 2);
for (int i = 1, len = json.length() - 1; i < len; ++i) {
char ch = json.charAt(i);
if (ch == '\\') {
ch = json.charAt(++i);
if (ch != '"' && ch != '\\')
unescaped.append('\\');
}
unescaped.append(ch);
}
return unescaped.toString();
}
static Error encodeArray(final Annotation annotation, final String pattern, final Object object, final int index, final Relations relations, final boolean validate) {
if (!(object instanceof String))
return Error.CONTENT_NOT_EXPECTED(object, -1);
final String string = (String)object;
if (validate && pattern.length() != 0 && !string.matches(pattern))
return Error.PATTERN_NOT_MATCHED(pattern, string, -1);
relations.set(index, new Relation(object, annotation));
return null;
}
static String encodeObject(final String string) throws EncodeException {
return JsonStrings.escape(string).insert(0, '"').append('"').toString();
}
static Object encodeObject(final Annotation annotation, final String pattern, final String object, final boolean validate) throws EncodeException {
if (validate) {
final Error error = validate(annotation, object, pattern);
if (error != null)
return error;
}
return encodeObject(object);
}
private static Error validate(final Annotation annotation, final String object, final String pattern) {
return pattern.length() > 0 && !object.matches(pattern) ? Error.PATTERN_NOT_MATCHED_ANNOTATION(annotation, object) : null;
}
private final String pattern;
StringCodec(final StringProperty property, final Field field) {
super(field, property.name(), property.nullable(), property.use());
this.pattern = property.pattern().length() == 0 ? null : property.pattern();
}
@Override
boolean test(final char firstChar) {
return firstChar == '"';
}
@Override
Error validate(final String json, final int offset) {
if ((json.charAt(0) != '"' || json.charAt(json.length() - 1) != '"') && (json.charAt(0) != '\'' || json.charAt(json.length() - 1) != '\''))
return Error.NOT_A_STRING;
final String value = json.substring(1, json.length() - 1);
if (pattern != null) {
try {
if (!value.matches(pattern))
return Error.PATTERN_NOT_MATCHED(pattern, value, offset);
}
catch (final PatternSyntaxException e) {
throw new ValidationException("Malformed pattern: " + pattern);
}
}
return null;
}
@Override
String parse(final String json) {
return decodeObject(json);
}
@Override
String elementName() {
return "string";
}
}