ObjectIterator.php — Secure Custom Fields trunk

secure-custom-fields / vendor / justinrainbow / json-schema / src / JsonSchema / Iterator / ObjectIterator.php

secure-custom-fields / vendor / justinrainbow / json-schema / src / JsonSchema / Iterator Last commit date

ObjectIterator.php

150 lines

1	<?php
2
3	/*
4	* This file is part of the JsonSchema package.
5	*
6	* For the full copyright and license information, please view the LICENSE
7	* file that was distributed with this source code.
8	*/
9
10	namespace JsonSchema\Iterator;
11
12	/**
13	* @package JsonSchema\Iterator
14	*
15	* @author Joost Nijhuis <jnijhuis81@gmail.com>
16	*/
17	class ObjectIterator implements \Iterator, \Countable
18	{
19	/** @var object */
20	private $object;
21
22	/** @var int */
23	private $position = 0;
24
25	/** @var array */
26	private $data = array();
27
28	/** @var bool */
29	private $initialized = false;
30
31	/**
32	* @param object $object
33	*/
34	public function __construct($object)
35	{
36	$this->object = $object;
37	}
38
39	/**
40	* {@inheritdoc}
41	*/
42	public function current()
43	{
44	$this->initialize();
45
46	return $this->data[$this->position];
47	}
48
49	/**
50	* {@inheritdoc}
51	*/
52	public function next()
53	{
54	$this->initialize();
55	$this->position++;
56	}
57
58	/**
59	* {@inheritdoc}
60	*/
61	public function key()
62	{
63	$this->initialize();
64
65	return $this->position;
66	}
67
68	/**
69	* {@inheritdoc}
70	*/
71	public function valid()
72	{
73	$this->initialize();
74
75	return isset($this->data[$this->position]);
76	}
77
78	/**
79	* {@inheritdoc}
80	*/
81	public function rewind()
82	{
83	$this->initialize();
84	$this->position = 0;
85	}
86
87	/**
88	* {@inheritdoc}
89	*/
90	public function count()
91	{
92	$this->initialize();
93
94	return count($this->data);
95	}
96
97	/**
98	* Initializer
99	*/
100	private function initialize()
101	{
102	if (!$this->initialized) {
103	$this->data = $this->buildDataFromObject($this->object);
104	$this->initialized = true;
105	}
106	}
107
108	/**
109	* @param object $object
110	*
111	* @return array
112	*/
113	private function buildDataFromObject($object)
114	{
115	$result = array();
116
117	$stack = new \SplStack();
118	$stack->push($object);
119
120	while (!$stack->isEmpty()) {
121	$current = $stack->pop();
122	if (is_object($current)) {
123	array_push($result, $current);
124	}
125
126	foreach ($this->getDataFromItem($current) as $propertyName => $propertyValue) {
127	if (is_object($propertyValue) \|\| is_array($propertyValue)) {
128	$stack->push($propertyValue);
129	}
130	}
131	}
132
133	return $result;
134	}
135
136	/**
137	* @param object\|array $item
138	*
139	* @return array
140	*/
141	private function getDataFromItem($item)
142	{
143	if (!is_object($item) && !is_array($item)) {
144	return array();
145	}
146
147	return is_object($item) ? get_object_vars($item) : $item;
148	}
149	}
150