FactoryTrait::matchArguments() - Code Metrics - Inspection of "Simplify matchArguments()" - phossa2/di - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 7a8e53...1b9f18 )

by Hong

created 2016-07-12 06:50 UTC

FactoryTrait::matchArguments() B

↳ Parent: FactoryTrait

Complexity

Conditions	5
Paths	7

Size

Total Lines	27
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Importance

Changes	3
Bugs	0	Features	1

Metric	Value
c	3
b	0
f	1
dl	0
loc	27
rs	8.439
cc	5
eloc	12
nc	7
nop	2

<?php
/**
 * Phossa Project
 *
 * PHP version 5.4
 *
 * @category  Library
 * @package   Phossa2\Di
 * @copyright Copyright (c) 2016 phossa.com
 * @license   http://mit-license.org/ MIT License
 * @link      http://www.phossa.com/
 */
/*# declare(strict_types=1); */

namespace Phossa2\Di\Traits;

use Phossa2\Di\Container;
use Phossa2\Di\Message\Message;
use Phossa2\Di\Exception\LogicException;

/**
 * FactoryTrait
 *
 * Create service instance here
 *
 * @package Phossa2\Di
 * @author  Hong Zhang <[email protected]>
 * @version 2.0.0
 * @since   2.0.0 added
 */
trait FactoryTrait
{
    /**
     * @var    Container
     * @access protected
     */
    protected $master;

    /**
     * Get service definition (and fix it)
     *
     * @param  string $rawId
     * @param  array $args
     * @return array
     * @access protected
     */
    protected function getDefinition(
        /*# string */ $rawId,
        array $args
    )/*# : array */ {
        // get the definition
        $def = $this->master->getResolver()->getService($rawId);

        // fix class
        if (!is_array($def) || !isset($def['class'])) {
            $def = ['class' => $def];
        }

        // resolve arguments
        if (!empty($args)) {
            $this->master->resolve($args);
            $def['args'] = $args;
        }

        return (array) $def;
    }

    /**
     * Instantiate service object from classname
     *
     * @param  string $class
     * @param  array $args
     * @return object
     * @throws LogicException if something goes wrong
     * @access protected
     */
    protected function constructObject(/*# string */ $class, array $args)
    {
        $reflector = new \ReflectionClass($class);
        $constructor = $reflector->getConstructor();

        // not constructor defined
        if (is_null($constructor)) {
            $obj = $reflector->newInstanceWithoutConstructor();

        // normal class with constructor
        } else {
            $args = $this->matchArguments(
                $constructor->getParameters(),
                $args
            );
            $obj = $reflector->newInstanceArgs($args);
        }

        return $obj;
    }

    /**
     * Match provided arguments with a method/function's reflection parameters
     *
     * @param  \ReflectionParameter[] $reflectionParameters
     * @param  array $providedArguments
     * @return array the resolved arguments
     * @throws LogicException
     * @throws NotFoundException
     * @access protected
     */
    protected function matchArguments(
        array $reflectionParameters,
        array $providedArguments
    )/*# : array */ {
        // result
        $resolvedArguments = [];

        // go thru each predefined parameter
        foreach ($reflectionParameters as $i => $param) {
            // arg to match with
            $argument = isset($providedArguments[0]) ? $providedArguments[0] : null;

            // check the class
            $class = $param->getClass();

            if ($this->isTypeMatched($param, $argument, $class)) {
                // type matched
                $resolvedArguments[$i] = array_shift($providedArguments);

            } elseif (null !== $class) {
                // not matched, but $param is an interface or class
                $resolvedArguments[$i] = $this->getObjectByClass($class->getName());
            }
        }

        return array_merge($resolvedArguments, $providedArguments);
    }

    /**
     * Is $parameter same type as the $argument ?
     *
     * @param  \ReflectionParameter $parameter
     * @param  mixed $argument
     * @param  null|string $class
     * @return bool
     * @access protected
     */
    protected function isTypeMatched(
        \ReflectionParameter $parameter,
        $argument,
        $class
    )/*# : bool */ {
        if (null === $argument) {
            return false;
        } elseif (null !== $class) {
            return is_a($argument, $parameter->getClass()->getName());
        } else {
            return true;
        }
    }

    /**
     * Get an object base on provided classname or interface name
     *
     * @param  string $classname class or interface name
     * @return object
     * @throws \Exception if something goes wrong
     * @access protected
     */
    protected function getObjectByClass(/*# string */ $classname)
    {
        // mapping exists
        if ($this->master->getResolver()->hasMapping($classname)) {
            $classname = $this->master->getResolver()->getMapping($classname);
            if (is_object($classname)) {
                return $classname;
            }
        }
        return $this->master->getResolver()->get($classname);
    }

    /**
     * Get callable parameters
     *
     * @param  callable $callable
     * @return \ReflectionParameter[]
     * @throws LogicException if something goes wrong
     * @access protected
     */
    protected function getCallableParameters(callable $callable)/*# : array */
    {
        // array type
        if (is_array($callable)) {
            $reflector = new \ReflectionClass($callable[0]);
            $method = $reflector->getMethod($callable[1]);

        // object with __invoke() defined
        } elseif ($this->isInvocable($callable)) {
            $reflector = new \ReflectionClass($callable);
            $method = $reflector->getMethod('__invoke');

        // simple function
        } else {
            $method = new \ReflectionFunction($callable);
        }

        return $method->getParameters();
    }

    /**
     * Is $var an object with '__invoke()' defined ?
     *
     * @param  mixed $var
     * @return bool
     * @access protected
     */
    protected function isInvocable($var)/*# : bool */
    {
        return is_object($var) && method_exists($var, '__invoke');
    }

    /**
     * Merge different sections of a node
     *
     * convert
     *   `['section1' => [[1], [2]], 'section2' => [[3], [4]]]`
     *
     * to
     *   `[[1], [2], [3], [4]]`
     *
     * @param  array $nodeData
     * @return array
     * @access protected
     */
    protected function mergeMethods(array $nodeData)/*# : array */
    {
        // no merge
        if (empty($nodeData) || isset($nodeData[0])) {
            return $nodeData;
        }

        // in sections
        $result = [];
        foreach ($nodeData as $data) {
            $result = array_merge($result, $data);
        }
        return $result;
    }

    /**
     * Execute common methods defined in 'di.common' for all objects
     *
     * @param  object $object
     * @return $this
     * @access protected
     */
    protected function executeCommonBatch($object)
    {
        $methods = [];

        // get from 'di.common'
        if ($this->master->getResolver()->hasInSection('', 'common')) {
            $methods = $this->mergeMethods(
                $this->master->getResolver()->getInSection('', 'common')
            );
        }

        foreach ($methods as $method) {
            if (call_user_func($method[0], $object, $this->master)) {
                call_user_func($method[1], $object, $this->master);
            }
        }
        return $this;
    }
}


1			<?php
2			/**
3			* Phossa Project
4			*
5			* PHP version 5.4
6			*
7			* @category Library
8			* @package Phossa2\Di
9			* @copyright Copyright (c) 2016 phossa.com
10			* @license http://mit-license.org/ MIT License
11			* @link http://www.phossa.com/
12			*/
13			/# declare(strict_types=1); /
14
15			namespace Phossa2\Di\Traits;
16
17			use Phossa2\Di\Container;
18			use Phossa2\Di\Message\Message;
19			use Phossa2\Di\Exception\LogicException;
20
21			/**
22			* FactoryTrait
23			*
24			* Create service instance here
25			*
26			* @package Phossa2\Di
27			* @author Hong Zhang <[email protected]>
28			* @version 2.0.0
29			* @since 2.0.0 added
30			*/
31			trait FactoryTrait
32			{
33			/**
34			* @var Container
35			* @access protected
36			*/
37			protected $master;
38
39			/**
40			* Get service definition (and fix it)
41			*
42			* @param string $rawId
43			* @param array $args
44			* @return array
45			* @access protected
46			*/
47			protected function getDefinition(
48			/# string / $rawId,
49			array $args
50			)/# : array / {
51			// get the definition
52			$def = $this->master->getResolver()->getService($rawId);
53
54			// fix class
55			if (!is_array($def) \|\| !isset($def['class'])) {
56			$def = ['class' => $def];
57			}
58
59			// resolve arguments
60			if (!empty($args)) {
61			$this->master->resolve($args);
62			$def['args'] = $args;
63			}
64
65			return (array) $def;
66			}
67
68			/**
69			* Instantiate service object from classname
70			*
71			* @param string $class
72			* @param array $args
73			* @return object
74			* @throws LogicException if something goes wrong
75			* @access protected
76			*/
77			protected function constructObject(/# string / $class, array $args)
78			{
79			$reflector = new \ReflectionClass($class);
80			$constructor = $reflector->getConstructor();
81
82			// not constructor defined
83			if (is_null($constructor)) {
84			$obj = $reflector->newInstanceWithoutConstructor();
85
86			// normal class with constructor
87			} else {
88			$args = $this->matchArguments(
89			$constructor->getParameters(),
90			$args
91			);
92			$obj = $reflector->newInstanceArgs($args);
93			}
94
95			return $obj;
96			}
97
98			/**
99			* Match provided arguments with a method/function's reflection parameters
100			*
101			* @param \ReflectionParameter[] $reflectionParameters
102			* @param array $providedArguments
103			* @return array the resolved arguments
104			* @throws LogicException
105			* @throws NotFoundException
106			* @access protected
107			*/
108			protected function matchArguments(
109			array $reflectionParameters,
110			array $providedArguments
111			)/# : array / {
112			// result
113			$resolvedArguments = [];
114
115			// go thru each predefined parameter
116			foreach ($reflectionParameters as $i => $param) {
117			// arg to match with
118			$argument = isset($providedArguments[0]) ? $providedArguments[0] : null;
119
120			// check the class
121			$class = $param->getClass();
122
123			if ($this->isTypeMatched($param, $argument, $class)) {
124			// type matched
125			$resolvedArguments[$i] = array_shift($providedArguments);
126
127			} elseif (null !== $class) {
128			// not matched, but $param is an interface or class
129			$resolvedArguments[$i] = $this->getObjectByClass($class->getName());
130			}
131			}
132
133			return array_merge($resolvedArguments, $providedArguments);
134			}
135
136			/**
137			* Is $parameter same type as the $argument ?
138			*
139			* @param \ReflectionParameter $parameter
140			* @param mixed $argument
141			* @param null\|string $class
142			* @return bool
143			* @access protected
144			*/
145			protected function isTypeMatched(
146			\ReflectionParameter $parameter,
147			$argument,
148			$class
149			)/# : bool / {
150			if (null === $argument) {
151			return false;
152			} elseif (null !== $class) {
153			return is_a($argument, $parameter->getClass()->getName());
154			} else {
155			return true;
156			}
157			}
158
159			/**
160			* Get an object base on provided classname or interface name
161			*
162			* @param string $classname class or interface name
163			* @return object
164			* @throws \Exception if something goes wrong
165			* @access protected
166			*/
167			protected function getObjectByClass(/# string / $classname)
168			{
169			// mapping exists
170			if ($this->master->getResolver()->hasMapping($classname)) {
171			$classname = $this->master->getResolver()->getMapping($classname);
172			if (is_object($classname)) {
173			return $classname;
174			}
175			}
176			return $this->master->getResolver()->get($classname);
177			}
178
179			/**
180			* Get callable parameters
181			*
182			* @param callable $callable
183			* @return \ReflectionParameter[]
184			* @throws LogicException if something goes wrong
185			* @access protected
186			*/
187			protected function getCallableParameters(callable $callable)/# : array /
188			{
189			// array type
190			if (is_array($callable)) {
191			$reflector = new \ReflectionClass($callable[0]);
192			$method = $reflector->getMethod($callable[1]);
193
194			// object with __invoke() defined
195			} elseif ($this->isInvocable($callable)) {
196			$reflector = new \ReflectionClass($callable);
197			$method = $reflector->getMethod('__invoke');
198
199			// simple function
200			} else {
201			$method = new \ReflectionFunction($callable);
202			}
203
204			return $method->getParameters();
205			}
206
207			/**
208			* Is $var an object with '__invoke()' defined ?
209			*
210			* @param mixed $var
211			* @return bool
212			* @access protected
213			*/
214			protected function isInvocable($var)/# : bool /
215			{
216			return is_object($var) && method_exists($var, '__invoke');
217			}
218
219			/**
220			* Merge different sections of a node
221			*
222			* convert
223			* `['section1' => [[1], [2]], 'section2' => [[3], [4]]]`
224			*
225			* to
226			* `[[1], [2], [3], [4]]`
227			*
228			* @param array $nodeData
229			* @return array
230			* @access protected
231			*/
232			protected function mergeMethods(array $nodeData)/# : array /
233			{
234			// no merge
235			if (empty($nodeData) \|\| isset($nodeData[0])) {
236			return $nodeData;
237			}
238
239			// in sections
240			$result = [];
241			foreach ($nodeData as $data) {
242			$result = array_merge($result, $data);
243			}
244			return $result;
245			}
246
247			/**
248			* Execute common methods defined in 'di.common' for all objects
249			*
250			* @param object $object
251			* @return $this
252			* @access protected
253			*/
254			protected function executeCommonBatch($object)
255			{
256			$methods = [];
257
258			// get from 'di.common'
259			if ($this->master->getResolver()->hasInSection('', 'common')) {
260			$methods = $this->mergeMethods(
261			$this->master->getResolver()->getInSection('', 'common')
262			);
263			}
264
265			foreach ($methods as $method) {
266			if (call_user_func($method[0], $object, $this->master)) {
267			call_user_func($method[1], $object, $this->master);
268			}
269			}
270			return $this;
271			}
272			}
273

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FactoryTrait::matchArguments() B

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