PathAwareJsonListener::getValue() - Code Metrics - Inspection of "+stopAfter()" - rudiedirkx/jsonpathstreamer - Measure and Improve Code Quality continuously with Scrutinizer

Completed

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by Rudie

created 2016-09-22 23:17 UTC

PathAwareJsonListener::getValue() A

↳ Parent: PathAwareJsonListener

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	3
rs	10
c	0
b	0
f	0
cc	1
eloc	2
nc	1
nop	0

<?php

namespace rdx\jsonpathstreamer;

use JsonStreamingParser\Listener\IdleListener;

abstract class PathAwareJsonListener extends IdleListener {

	protected $stopAfter = [];
	protected $separator = '/';

	protected $value = [];

	protected $indent = -1;
	protected $array = [false];
	protected $array_index = [-1];
	protected $lastKey = null;
	protected $trace = [];
	protected $key = [];

	/**
	 *
	 */
	public function __construct() {
		if ($regexes = $this->stopAfter()) {
			$this->stopAfter = array_combine($regexes, array_fill(0, count($regexes), false));
		}
	}

	/**
	 * Implements JsonStreamingParser\Listener::endDocument().
	 */
	public function endDocument() {
		if (!empty($this->stopAfter)) {
			$this->stop(false);
		}
	}

	/**
	 * Implements JsonStreamingParser\Listener::startObject().
	 */
	public function startObject() {
		$this->arrayKey();

		$this->indent++;
		$this->array[$this->indent] = false;
		if ($this->lastKey !== null) {
			$this->trace[] = $this->lastKey;
		}
	}

	/**
	 * Implements JsonStreamingParser\Listener::endObject().
	 */
	public function endObject() {
		$this->indent--;
		array_pop($this->trace);
	}

	/**
	 * Implements JsonStreamingParser\Listener::startArray().
	 */
	public function startArray() {
		$this->arrayKey();

		$this->indent++;
		$this->array[$this->indent] = true;
		$this->array_index[$this->indent] = -1;
		if ($this->lastKey !== null) {
			$this->trace[] = $this->lastKey;
		}
	}

	/**
	 * Implements JsonStreamingParser\Listener::endArray().
	 */
	public function endArray() {
		$this->array[$this->indent] = false;
		$this->indent--;
		array_pop($this->trace);
	}

	/**
	 * Implements JsonStreamingParser\Listener::key().
	 */
	public function key($key) {
		$this->lastKey = $key;
		$this->composeKey();

		$this->gotPath($this->path);
class MyClass { }

$x = new MyClass();
$x->foo = true;
	}

	/**
	 * Implements JsonStreamingParser\Listener::value().
	 */
	public function value($value) {
		$this->arrayKey();
		$this->composeKey();

		$this->touch($this->path);

		$this->gotValue($this->path, $value);
	}

	/**
	 *
	 */
	protected function touch(array $path) {
		if ($this->stopAfter) {

			$pathString = implode($this->separator, $path);
			foreach ($this->stopAfter as $regex => &$touched) {
				if (preg_match($regex, $pathString)) {
					$touched = true;
				}
				elseif ($touched) {
					unset($this->stopAfter[$regex]);

					if (empty($this->stopAfter)) {
						$this->stop(true);
					}
				}

				unset($touched);
			}
		}
	}

	/**
	 *
	 */
	protected function stop($allTouched) {
		throw new DoneParsingException($allTouched);
	}

	/**
	 * Create a complete key from the trace and current level.
	 */
	protected function composeKey() {
		$this->path = array_merge($this->trace, [$this->lastKey]);
	}

	/**
	 * Trigger a new key, numeric or associative.
	 */
	protected function arrayKey() {
		if (!empty($this->array[$this->indent])) {
			$this->array_index[$this->indent]++;
			$this->key($this->array_index[$this->indent]);
		}
	}

	/**
	 * Optional helper to save a scalar value into a non-scalar path.
	 */
	protected function setValue(array &$container, array $key, $value) {
		$element = &$container;
		foreach ($key as $subkey) {
			$element =& $element[$subkey];
		}
		$element = $value;
	}

	/**
	 * Remember a value into the provided value property.
	 */
	protected function rememberValue(array $path, $value) {
		$this->setValue($this->value, $path, $value);
	}

	/**
	 * Return the entire saved value.
	 */
	public function getValue() {
		return $this->value;
	}

	/**
	 * Define a list of paths (regexes) that must be completed. Completely stops
	 * the parser after these.
	 *
	 * @return array
	 */
	public function stopAfter() {
		// Optional
	}

	/**
	 * Get notified about a new key, value still unknown.
	 *
	 * @return void
	 */
	abstract public function gotPath(array $path);

	/**
	 * Get notified about a new value, including complete path.
	 *
	 * @return void
	 */
	abstract public function gotValue(array $path, $value);

}


1			<?php
2
3			namespace rdx\jsonpathstreamer;
4
5			use JsonStreamingParser\Listener\IdleListener;
6
7			abstract class PathAwareJsonListener extends IdleListener {
8
9			protected $stopAfter = [];
10			protected $separator = '/';
11
12			protected $value = [];
13
14			protected $indent = -1;
15			protected $array = [false];
16			protected $array_index = [-1];
17			protected $lastKey = null;
18			protected $trace = [];
19			protected $key = [];
20
21			/**
22			*
23			*/
24			public function __construct() {
25			if ($regexes = $this->stopAfter()) {
26			$this->stopAfter = array_combine($regexes, array_fill(0, count($regexes), false));
27			}
28			}
29
30			/**
31			* Implements JsonStreamingParser\Listener::endDocument().
32			*/
33			public function endDocument() {
34			if (!empty($this->stopAfter)) {
35			$this->stop(false);
36			}
37			}
38
39			/**
40			* Implements JsonStreamingParser\Listener::startObject().
41			*/
42			public function startObject() {
43			$this->arrayKey();
44
45			$this->indent++;
46			$this->array[$this->indent] = false;
47			if ($this->lastKey !== null) {
48			$this->trace[] = $this->lastKey;
49			}
50			}
51
52			/**
53			* Implements JsonStreamingParser\Listener::endObject().
54			*/
55			public function endObject() {
56			$this->indent--;
57			array_pop($this->trace);
58			}
59
60			/**
61			* Implements JsonStreamingParser\Listener::startArray().
62			*/
63			public function startArray() {
64			$this->arrayKey();
65
66			$this->indent++;
67			$this->array[$this->indent] = true;
68			$this->array_index[$this->indent] = -1;
69			if ($this->lastKey !== null) {
70			$this->trace[] = $this->lastKey;
71			}
72			}
73
74			/**
75			* Implements JsonStreamingParser\Listener::endArray().
76			*/
77			public function endArray() {
78			$this->array[$this->indent] = false;
79			$this->indent--;
80			array_pop($this->trace);
81			}
82
83			/**
84			* Implements JsonStreamingParser\Listener::key().
85			*/
86			public function key($key) {
87			$this->lastKey = $key;
88			$this->composeKey();
89
90			$this->gotPath($this->path);
			0 ignored issues – show Bug introduced 2016-09-22 23:16 UTC by Report Bug Copy Issue Report The property `path` does not exist. Did you maybe forget to declare it? In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code: class MyClass { } $x = new MyClass(); $x->foo = true; Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: class MyClass { public $foo; } $x = new MyClass(); $x->foo = true; Loading history...
91			}
92
93			/**
94			* Implements JsonStreamingParser\Listener::value().
95			*/
96			public function value($value) {
97			$this->arrayKey();
98			$this->composeKey();
99
100			$this->touch($this->path);
101
102			$this->gotValue($this->path, $value);
103			}
104
105			/**
106			*
107			*/
108			protected function touch(array $path) {
109			if ($this->stopAfter) {
			0 ignored issues – show Bug Best Practice introduced 2016-09-22 23:19 UTC by Report Bug Copy Issue Report The expression `$this->stopAfter` of type `array` is implicitly converted to a boolean; are you sure this is intended? If so, consider using `! empty($expr)` instead to make it clear that you intend to check for an array without elements. This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent. Consider making the comparison explicit by using `empty(..)` or `! empty(...)` instead. Loading history...
110			$pathString = implode($this->separator, $path);
111			foreach ($this->stopAfter as $regex => &$touched) {
112			if (preg_match($regex, $pathString)) {
113			$touched = true;
114			}
115			elseif ($touched) {
116			unset($this->stopAfter[$regex]);
117
118			if (empty($this->stopAfter)) {
119			$this->stop(true);
120			}
121			}
122
123			unset($touched);
124			}
125			}
126			}
127
128			/**
129			*
130			*/
131			protected function stop($allTouched) {
132			throw new DoneParsingException($allTouched);
133			}
134
135			/**
136			* Create a complete key from the trace and current level.
137			*/
138			protected function composeKey() {
139			$this->path = array_merge($this->trace, [$this->lastKey]);
140			}
141
142			/**
143			* Trigger a new key, numeric or associative.
144			*/
145			protected function arrayKey() {
146			if (!empty($this->array[$this->indent])) {
147			$this->array_index[$this->indent]++;
148			$this->key($this->array_index[$this->indent]);
149			}
150			}
151
152			/**
153			* Optional helper to save a scalar value into a non-scalar path.
154			*/
155			protected function setValue(array &$container, array $key, $value) {
156			$element = &$container;
157			foreach ($key as $subkey) {
158			$element =& $element[$subkey];
159			}
160			$element = $value;
161			}
162
163			/**
164			* Remember a value into the provided value property.
165			*/
166			protected function rememberValue(array $path, $value) {
167			$this->setValue($this->value, $path, $value);
168			}
169
170			/**
171			* Return the entire saved value.
172			*/
173			public function getValue() {
174			return $this->value;
175			}
176
177			/**
178			* Define a list of paths (regexes) that must be completed. Completely stops
179			* the parser after these.
180			*
181			* @return array
182			*/
183			public function stopAfter() {
184			// Optional
185			}
186
187			/**
188			* Get notified about a new key, value still unknown.
189			*
190			* @return void
191			*/
192			abstract public function gotPath(array $path);
193
194			/**
195			* Get notified about a new value, including complete path.
196			*
197			* @return void
198			*/
199			abstract public function gotValue(array $path, $value);
200
201			}
202

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PathAwareJsonListener::getValue() A

Complexity

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Importance

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