Viewing file:  JsonTrait.php (2.15 KB) -rw-r--r--
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<?php
/**
* Copyright 2017 Google Inc. All Rights Reserved.
*
* 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 Google\Cloud\Core;
/**
* Provides wrappers for json_encode/json_decode that throw exceptions when an
* error is encountered.
*/
trait JsonTrait
{
/**
* @param string $json The json string being decoded.
* @param bool $assoc When true, returned objects will be converted into
* associative arrays.
* @param int $depth User specified recursion depth.
* @param int $options Bitmask of JSON decode options.
* @return mixed
* @throws \InvalidArgumentException
*/
private static function jsonDecode($json, $assoc = false, $depth = 512, $options = 0)
{
$data = json_decode($json, $assoc, $depth, $options);
if (JSON_ERROR_NONE !== json_last_error()) {
throw new \InvalidArgumentException(
'json_decode error: ' . json_last_error_msg()
);
}
return $data;
}
/**
* @param mixed $value The value being encoded. Can be any type except a
* resource.
* @param int $options Bitmask of JSON encode options.
* @param int $depth Set the maximum depth. Must be greater than zero.
* @return string
* @throws \InvalidArgumentException
*/
private static function jsonEncode($value, $options = 0, $depth = 512)
{
$json = json_encode($value, $options, $depth);
if (JSON_ERROR_NONE !== json_last_error()) {
throw new \InvalidArgumentException(
'json_encode error: ' . json_last_error_msg()
);
}
return $json;
}
}
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