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<?php
/* ============================================================================
* Copyright 2020 Zindex Software
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============================================================================ */
namespace Opis\JsonSchema\Keywords;
use Opis\JsonSchema\{
Helper,
ValidationContext,
Keyword,
Schema
};
use Opis\JsonSchema\Errors\ValidationError;
class EnumKeyword implements Keyword
{
use ErrorTrait;
protected ?array $enum;
/**
* @param array $enum
*/
public function __construct(array $enum)
{
$this->enum = $this->listByType($enum);
}
/**
* @inheritDoc
*/
public function validate(ValidationContext $context, Schema $schema): ?ValidationError
{
$type = $context->currentDataType();
$data = $context->currentData();
if (isset($this->enum[$type])) {
foreach ($this->enum[$type] as $value) {
if (Helper::equals($value, $data)) {
return null;
}
}
}
return $this->error($schema, $context, 'enum', 'The data should match one item from enum');
}
/**
* @param array $values
* @return array
*/
protected function listByType(array $values): array
{
$list = [];
foreach ($values as $value) {
$type = Helper::getJsonType($value);
if (!isset($list[$type])) {
$list[$type] = [];
}
$list[$type][] = $value;
}
return $list;
}
}
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