Util::raiseException() - Code Metrics - Inspection of "Version 3.0" - traderinteractive/util-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#57)

unknown

created 2018-03-02 19:17 UTC

Util::raiseException() A

↳ Parent: Util

Complexity

Conditions	2
Paths	2

Size

Total Lines	8
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	8
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	4
nc	2
nop	4

<?php

namespace TraderInteractive;

use ErrorException;
use Exception;
use InvalidArgumentException;
use ReflectionClass;
use ReflectionException;

/**
 * Static class with various application functions.
 */
final class Util
{
    private static $exceptionAliases = ['http' => '\DominionEnterprises\HttpException'];

    /**
     * Returns exception info in array.
     *
     * @param Exception $e the exception to return info on
     *
     * @return array like:
     * <pre>
     * [
     *     'type' => 'Exception',
     *     'message' => 'a message',
     *     'code' => 0,
     *     'file' => '/somePath',
     *     'line' => 434,
     *     'trace' => 'a stack trace',
     * ]
     * </pre>
     */
    public static function getExceptionInfo(Exception $e) : array
    {
        return [
            'type' => get_class($e),
            'message' => $e->getMessage(),
            'code' => $e->getCode(),
            'file' => $e->getFile(),
            'line' => $e->getLine(),
            'trace' => $e->getTraceAsString(),
        ];
    }

    /**
     * Ensures that $valueToEnsure is equal to $valueToCheck or it throws
     *
     * Can be used like: $result = ensure(true, is_string('boo'))
     * Or like: $result = ensure(true, is_string('boo'), 'the message')
     * Or like: $result = ensure(true, is_string('boo'), 'MyException', ['the message', 2])
     * Or like: $result = ensure(true, is_string('boo'), new MyException('the message', 2))
     *
     * @param mixed                 $valueToEnsure the value to throw on if $valueToCheck equals it
     * @param mixed                 $valueToCheck  the value to check against $valueToEnsure
     * @param null|string|Exception $exception     null, a fully qualified exception class name, string for an Exception
     *                                             message, or an Exception.  The fully qualified exception class name
     *                                             could also be an alias in getExceptionAliases()
     * @param array|null            $exceptionArgs arguments to pass to a new instance of $exception. If using this
     *                                             parameter make sure these arguments match the constructor for an
     *                                             exception of type $exception.
     *
     * @return mixed returns $valueToCheck
     *
     * @throws Exception if $valueToEnsure !== $valueToCheck
     * @throws InvalidArgumentException if $exception was not null, a string, or an Exception
     */
    public static function ensure($valueToEnsure, $valueToCheck, $exception = null, array $exceptionArgs = null)

    {
        if ($valueToEnsure !== $valueToCheck) {
            throw self::buildException(
                $exception ?: "'{$valueToEnsure}' did not equal '{$valueToCheck}'",
                $exceptionArgs
            );
        }

        return $valueToCheck;
    }

    /**
     * Ensures that $valueToThrowOn is not equal to $valueToCheck or it throws
     *
     * Can be used like: $curl = ensureNot(false, curl_init('boo'))
     * Or like: $curl = ensureNot(false, curl_init('boo'), 'bad message')
     * Or like: $curl = ensureNot(false, curl_init('boo'), 'MyException', ['bad message', 2])
     * Or like: $curl = ensureNot(false, curl_init('boo'), new MyException('bad message', 2))
     *
     * @param mixed                 $valueToThrowOn the value to throw on if $valueToCheck equals it
     * @param mixed                 $valueToCheck   the value to check against $valueToThrowOn
     * @param null|string|Exception $exception      null, a fully qualified exception class name, string for an
     *                                              Exception message, or an Exception.  The fully qualified exception
     *                                              class name could also be an alias in getExceptionAliases()
     * @param array|null            $exceptionArgs  arguments to pass to a new instance of $exception. If using this
     *                                              parameter make sure these arguments match the constructor for an
     *                                              exception of type $exception.
     *
     * @return mixed returns $valueToCheck
     *
     * @throws Exception if $valueToThrowOn === $valueToCheck
     * @throws InvalidArgumentException if $exception was not null, a string, or an Exception
     */
    public static function ensureNot($valueToThrowOn, $valueToCheck, $exception = null, array $exceptionArgs = null)

    {
        if ($valueToThrowOn === $valueToCheck) {
            throw self::buildException($exception ?: "'{$valueToThrowOn}' equals '{$valueToCheck}'", $exceptionArgs);
        }

        return $valueToCheck;
    }

    /**
     * Helper method to return exception created from ensure[Not] call input.
     *
     * @param mixed      $exception     Null, a fully qualified exception class name, string for an Exception message,
     *                                  or an Exception.  The fully qualified exception class name could also be an
     *                                  alias in getExceptionAliases()
     * @param array|null $exceptionArgs Arguments to pass to a new instance of $exception. If using this parameter make
     *                                  sure these arguments match the constructor for an exception of type $exception.
     *
     * @return Exception|mixed|object
     * @throws ReflectionException
     */
    private static function buildException($exception, array $exceptionArgs = null)
    {
        if ($exception instanceof Exception) {
            return $exception;
        }

        if (!is_string($exception)) {
            throw new InvalidArgumentException('$exception was not null, a string, or an Exception');
        }

        if (empty($exceptionArgs)) {
            return new Exception($exception);
        }

        if (array_key_exists($exception, self::$exceptionAliases)) {
            $exception = self::$exceptionAliases[$exception];
        }

        return (new ReflectionClass($exception))->newInstanceArgs($exceptionArgs);
    }

    /**
     * Throws a new ErrorException based on the error information provided. To be
     * used as a callback for @see set_error_handler()
     *
     * @param int    $level   The level of the exception.
     * @param string $message The message the exception will give.
     * @param string $file    The file that the error occurred in.
     * @param string $line    The line that the exception occurred upon.
     *
     * @return bool false
     *
     * @throws ErrorException
     */
    public static function raiseException(int $level, string $message, string $file = null, string $line = null) : bool
    {
        if (error_reporting() === 0) {
            return false;
        }

        throw new ErrorException($message, 0, $level, $file, $line);
    }

    /**
     * Throws an exception if specified variables are not of given types.
     *
     * @param array $typesToVariables like ['string' => [$var1, $var2], 'int' => [$var1, $var2]] or
     *                                ['string' => $var1, 'integer' => [1, $var2]]. Supported types are the suffixes
     *                                of the is_* functions such as string for is_string and int for is_int
     * @param bool  $failOnWhitespace whether to fail strings if they are whitespace
     * @param bool  $allowNulls       whether to allow null values to pass through
     *
     * @return void
     *
     * @throws InvalidArgumentException if a key in $typesToVariables was not a string
     * @throws InvalidArgumentException if a key in $typesToVariables did not have an is_ function
     * @throws InvalidArgumentException if a variable is not of correct type
     * @throws InvalidArgumentException if a variable is whitespace and $failOnWhitespace is set
     */
    public static function throwIfNotType(
        array $typesToVariables,
        bool $failOnWhitespace = false,
        bool $allowNulls = false
    ) {
        foreach ($typesToVariables as $type => $variablesOrVariable) {
            self::handleTypesToVariables($failOnWhitespace, $allowNulls, $variablesOrVariable, $type);
        }
    }

    /**
     * Return the exception aliases.
     *
     * @return array array where keys are aliases and values are strings to a fully qualified exception class names.
     */
    public static function getExceptionAliases() : array
    {
        return self::$exceptionAliases;
    }

    /**
     * Set the exception aliases.
     *
     * @param array $aliases array where keys are aliases and values are strings to a fully qualified exception class
     *                       names.
     */
    public static function setExceptionAliases(array $aliases)
    {
        self::$exceptionAliases = $aliases;
    }

    private static function handleBoolCase(bool $allowNulls, array $variables)
    {
        foreach ($variables as $i => $variable) {
            //using the continue here not negative checks to make use of short cutting optimization.
            if ($variable === false || $variable === true || ($allowNulls && $variable === null)) {
                continue;
            }

            throw new InvalidArgumentException("variable at position '{$i}' was not a boolean");
        }
    }

    private static function handleNullCase(array $variables)
    {
        foreach ($variables as $i => $variable) {
            if ($variable !== null) {
                throw new InvalidArgumentException("variable at position '{$i}' was not null");
            }
        }
    }

    private static function handleStringCase(bool $failOnWhitespace, bool $allowNulls, array $variables, string $type)
    {
        foreach ($variables as $i => $variable) {
            if (is_string($variable)) {
                if ($failOnWhitespace && trim($variable) === '') {
                    throw new InvalidArgumentException("variable at position '{$i}' was whitespace");
                }

                continue;
            }

            if ($allowNulls && $variable === null) {
                continue;
            }

            throw new InvalidArgumentException("variable at position '{$i}' was not a '{$type}'");
        }
    }

    private static function handleDefaultCase(bool $allowNulls, string $type, array $variables)
    {
        $isFunction = "is_{$type}";
        foreach ($variables as $i => $variable) {
            if ($isFunction($variable) || ($allowNulls && $variable === null)) {
                continue;
            }

            throw new InvalidArgumentException("variable at position '{$i}' was not a '{$type}'");
        }
    }

    private static function handleTypesToVariables(
        bool $failOnWhitespace,
        bool $allowNulls,
        $variablesOrVariable,
        $type
    ) {
        $variables = [$variablesOrVariable];
        if (is_array($variablesOrVariable)) {
            $variables = $variablesOrVariable;
        }

        //cast ok since an integer won't match any of the cases.
        //the similar code in the cases is an optimization for those type where faster checks can be made.
        $typeString = (string)$type;
        if ($typeString === 'bool') {
            self::handleBoolCase($allowNulls, $variables);
            return;
        }

        if ($typeString === 'null') {
            self::handleNullCase($variables);
            return;
        }

        if ($typeString === 'string') {
            self::handleStringCase($failOnWhitespace, $allowNulls, $variables, $type);
            return;
        }

        $defaults = [
            'array',
            'callable',
            'double',
            'float',
            'int',
            'integer',
            'long',
            'numeric',
            'object',
            'real',
            'resource',
            'scalar',
        ];
        if (in_array($typeString, $defaults)) {
            self::handleDefaultCase($allowNulls, $type, $variables);
            return;
        }

        throw new InvalidArgumentException('a type was not one of the is_ functions');
    }
}


1		<?php
2
3		namespace TraderInteractive;
4
5		use ErrorException;
6		use Exception;
7		use InvalidArgumentException;
8		use ReflectionClass;
9		use ReflectionException;
10
11		/**
12		* Static class with various application functions.
13		*/
14		final class Util
15		{
16		private static $exceptionAliases = ['http' => '\DominionEnterprises\HttpException'];
17
18		/**
19		* Returns exception info in array.
20		*
21		* @param Exception $e the exception to return info on
22		*
23		* @return array like:
24		* <pre>
25		* [
26		* 'type' => 'Exception',
27		* 'message' => 'a message',
28		* 'code' => 0,
29		* 'file' => '/somePath',
30		* 'line' => 434,
31		* 'trace' => 'a stack trace',
32		* ]
33		* </pre>
34		*/
35		public static function getExceptionInfo(Exception $e) : array
36		{
37		return [
38		'type' => get_class($e),
39		'message' => $e->getMessage(),
40		'code' => $e->getCode(),
41		'file' => $e->getFile(),
42		'line' => $e->getLine(),
43		'trace' => $e->getTraceAsString(),
44		];
45		}
46
47		/**
48		* Ensures that $valueToEnsure is equal to $valueToCheck or it throws
49		*
50		* Can be used like: $result = ensure(true, is_string('boo'))
51		* Or like: $result = ensure(true, is_string('boo'), 'the message')
52		* Or like: $result = ensure(true, is_string('boo'), 'MyException', ['the message', 2])
53		* Or like: $result = ensure(true, is_string('boo'), new MyException('the message', 2))
54		*
55		* @param mixed $valueToEnsure the value to throw on if $valueToCheck equals it
56		* @param mixed $valueToCheck the value to check against $valueToEnsure
57		* @param null\|string\|Exception $exception null, a fully qualified exception class name, string for an Exception
58		* message, or an Exception. The fully qualified exception class name
59		* could also be an alias in getExceptionAliases()
60		* @param array\|null $exceptionArgs arguments to pass to a new instance of $exception. If using this
61		* parameter make sure these arguments match the constructor for an
62		* exception of type $exception.
63		*
64		* @return mixed returns $valueToCheck
65		*
66		* @throws Exception if $valueToEnsure !== $valueToCheck
67		* @throws InvalidArgumentException if $exception was not null, a string, or an Exception
68		*/
69	View Code Duplication	public static function ensure($valueToEnsure, $valueToCheck, $exception = null, array $exceptionArgs = null)
		0 ignored issues – show Duplication introduced 2017-12-13 16:57 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
70		{
71		if ($valueToEnsure !== $valueToCheck) {
72		throw self::buildException(
73		$exception ?: "'{$valueToEnsure}' did not equal '{$valueToCheck}'",
74		$exceptionArgs
75		);
76		}
77
78		return $valueToCheck;
79		}
80
81		/**
82		* Ensures that $valueToThrowOn is not equal to $valueToCheck or it throws
83		*
84		* Can be used like: $curl = ensureNot(false, curl_init('boo'))
85		* Or like: $curl = ensureNot(false, curl_init('boo'), 'bad message')
86		* Or like: $curl = ensureNot(false, curl_init('boo'), 'MyException', ['bad message', 2])
87		* Or like: $curl = ensureNot(false, curl_init('boo'), new MyException('bad message', 2))
88		*
89		* @param mixed $valueToThrowOn the value to throw on if $valueToCheck equals it
90		* @param mixed $valueToCheck the value to check against $valueToThrowOn
91		* @param null\|string\|Exception $exception null, a fully qualified exception class name, string for an
92		* Exception message, or an Exception. The fully qualified exception
93		* class name could also be an alias in getExceptionAliases()
94		* @param array\|null $exceptionArgs arguments to pass to a new instance of $exception. If using this
95		* parameter make sure these arguments match the constructor for an
96		* exception of type $exception.
97		*
98		* @return mixed returns $valueToCheck
99		*
100		* @throws Exception if $valueToThrowOn === $valueToCheck
101		* @throws InvalidArgumentException if $exception was not null, a string, or an Exception
102		*/
103	View Code Duplication	public static function ensureNot($valueToThrowOn, $valueToCheck, $exception = null, array $exceptionArgs = null)
		0 ignored issues – show Duplication introduced 2017-12-13 16:57 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
104		{
105		if ($valueToThrowOn === $valueToCheck) {
106		throw self::buildException($exception ?: "'{$valueToThrowOn}' equals '{$valueToCheck}'", $exceptionArgs);
107		}
108
109		return $valueToCheck;
110		}
111
112		/**
113		* Helper method to return exception created from ensure[Not] call input.
114		*
115		* @param mixed $exception Null, a fully qualified exception class name, string for an Exception message,
116		* or an Exception. The fully qualified exception class name could also be an
117		* alias in getExceptionAliases()
118		* @param array\|null $exceptionArgs Arguments to pass to a new instance of $exception. If using this parameter make
119		* sure these arguments match the constructor for an exception of type $exception.
120		*
121		* @return Exception\|mixed\|object
122		* @throws ReflectionException
123		*/
124		private static function buildException($exception, array $exceptionArgs = null)
125		{
126		if ($exception instanceof Exception) {
127		return $exception;
128		}
129
130		if (!is_string($exception)) {
131		throw new InvalidArgumentException('$exception was not null, a string, or an Exception');
132		}
133
134		if (empty($exceptionArgs)) {
135		return new Exception($exception);
136		}
137
138		if (array_key_exists($exception, self::$exceptionAliases)) {
139		$exception = self::$exceptionAliases[$exception];
140		}
141
142		return (new ReflectionClass($exception))->newInstanceArgs($exceptionArgs);
143		}
144
145		/**
146		* Throws a new ErrorException based on the error information provided. To be
147		* used as a callback for @see set_error_handler()
148		*
149		* @param int $level The level of the exception.
150		* @param string $message The message the exception will give.
151		* @param string $file The file that the error occurred in.
152		* @param string $line The line that the exception occurred upon.
153		*
154		* @return bool false
155		*
156		* @throws ErrorException
157		*/
158		public static function raiseException(int $level, string $message, string $file = null, string $line = null) : bool
159		{
160		if (error_reporting() === 0) {
161		return false;
162		}
163
164		throw new ErrorException($message, 0, $level, $file, $line);
165		}
166
167		/**
168		* Throws an exception if specified variables are not of given types.
169		*
170		* @param array $typesToVariables like ['string' => [$var1, $var2], 'int' => [$var1, $var2]] or
171		* ['string' => $var1, 'integer' => [1, $var2]]. Supported types are the suffixes
172		* of the is_* functions such as string for is_string and int for is_int
173		* @param bool $failOnWhitespace whether to fail strings if they are whitespace
174		* @param bool $allowNulls whether to allow null values to pass through
175		*
176		* @return void
177		*
178		* @throws InvalidArgumentException if a key in $typesToVariables was not a string
179		* @throws InvalidArgumentException if a key in $typesToVariables did not have an is_ function
180		* @throws InvalidArgumentException if a variable is not of correct type
181		* @throws InvalidArgumentException if a variable is whitespace and $failOnWhitespace is set
182		*/
183		public static function throwIfNotType(
184		array $typesToVariables,
185		bool $failOnWhitespace = false,
186		bool $allowNulls = false
187		) {
188		foreach ($typesToVariables as $type => $variablesOrVariable) {
189		self::handleTypesToVariables($failOnWhitespace, $allowNulls, $variablesOrVariable, $type);
190		}
191		}
192
193		/**
194		* Return the exception aliases.
195		*
196		* @return array array where keys are aliases and values are strings to a fully qualified exception class names.
197		*/
198		public static function getExceptionAliases() : array
199		{
200		return self::$exceptionAliases;
201		}
202
203		/**
204		* Set the exception aliases.
205		*
206		* @param array $aliases array where keys are aliases and values are strings to a fully qualified exception class
207		* names.
208		*/
209		public static function setExceptionAliases(array $aliases)
210		{
211		self::$exceptionAliases = $aliases;
212		}
213
214		private static function handleBoolCase(bool $allowNulls, array $variables)
215		{
216		foreach ($variables as $i => $variable) {
217		//using the continue here not negative checks to make use of short cutting optimization.
218		if ($variable === false \|\| $variable === true \|\| ($allowNulls && $variable === null)) {
219		continue;
220		}
221
222		throw new InvalidArgumentException("variable at position '{$i}' was not a boolean");
223		}
224		}
225
226		private static function handleNullCase(array $variables)
227		{
228		foreach ($variables as $i => $variable) {
229		if ($variable !== null) {
230		throw new InvalidArgumentException("variable at position '{$i}' was not null");
231		}
232		}
233		}
234
235		private static function handleStringCase(bool $failOnWhitespace, bool $allowNulls, array $variables, string $type)
236		{
237		foreach ($variables as $i => $variable) {
238		if (is_string($variable)) {
239		if ($failOnWhitespace && trim($variable) === '') {
240		throw new InvalidArgumentException("variable at position '{$i}' was whitespace");
241		}
242
243		continue;
244		}
245
246		if ($allowNulls && $variable === null) {
247		continue;
248		}
249
250		throw new InvalidArgumentException("variable at position '{$i}' was not a '{$type}'");
251		}
252		}
253
254		private static function handleDefaultCase(bool $allowNulls, string $type, array $variables)
255		{
256		$isFunction = "is_{$type}";
257		foreach ($variables as $i => $variable) {
258		if ($isFunction($variable) \|\| ($allowNulls && $variable === null)) {
259		continue;
260		}
261
262		throw new InvalidArgumentException("variable at position '{$i}' was not a '{$type}'");
263		}
264		}
265
266		private static function handleTypesToVariables(
267		bool $failOnWhitespace,
268		bool $allowNulls,
269		$variablesOrVariable,
270		$type
271		) {
272		$variables = [$variablesOrVariable];
273		if (is_array($variablesOrVariable)) {
274		$variables = $variablesOrVariable;
275		}
276
277		//cast ok since an integer won't match any of the cases.
278		//the similar code in the cases is an optimization for those type where faster checks can be made.
279		$typeString = (string)$type;
280		if ($typeString === 'bool') {
281		self::handleBoolCase($allowNulls, $variables);
282		return;
283		}
284
285		if ($typeString === 'null') {
286		self::handleNullCase($variables);
287		return;
288		}
289
290		if ($typeString === 'string') {
291		self::handleStringCase($failOnWhitespace, $allowNulls, $variables, $type);
292		return;
293		}
294
295		$defaults = [
296		'array',
297		'callable',
298		'double',
299		'float',
300		'int',
301		'integer',
302		'long',
303		'numeric',
304		'object',
305		'real',
306		'resource',
307		'scalar',
308		];
309		if (in_array($typeString, $defaults)) {
310		self::handleDefaultCase($allowNulls, $type, $variables);
311		return;
312		}
313
314		throw new InvalidArgumentException('a type was not one of the is_ functions');
315		}
316		}
317

traderinteractive / util-php

Pull Request — master (#57)

Util::raiseException() A

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