MessageAdapter::__construct() - Code Metrics - Inspection of "refactor: clean interfaces and wording" - puzzle-org/amqp - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#14)

by Nicolas

created 2017-03-16 15:13 UTC

MessageAdapter::__construct() A

↳ Parent: MessageAdapter

Complexity

Conditions	1
Paths	1

Size

Total Lines	9
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	9
c	0
b	0
f	0
ccs	7
cts	7
cp	1
rs	9.6666
cc	1
eloc	5
nc	1
nop	1
crap	1

<?php

namespace Puzzle\AMQP\Workers;

use Puzzle\AMQP\ReadableMessage;
use Puzzle\AMQP\Messages\BodyFactory;

class MessageAdapter implements ReadableMessage
{
    private
        $message,
class A {
    var $property;
}
        $body;

    public function __construct(\Swarrot\Broker\Message $message)
    {
        $this->message = $message;
        
        $this->body = (new BodyFactory())->create(
            $this->getContentType(),
            $message->getBody()
        );
    }

    public function getRoutingKey()
    {
        return $this->getAttribute('routing_key');
    }

    public function getContentType()
    {
        return $this->getAttribute('content_type');
    }

    public function getAppId()
    {
        return $this->getAttribute('app_id');
    }

    public function getHeaders()
    {
        return $this->getAttribute('headers');
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
    }

    public function getBody()
    {
        return $this->body;
    }

    public function getBodyInOriginalFormat()
    {
        return $this->body->inOriginalFormat();
    }

    public function getAttribute($attributeName)
    {
        $messageProperties = $this->message->getProperties();
        if(array_key_exists($attributeName, $messageProperties))
        {
            return $messageProperties[$attributeName];
        }

        throw new \InvalidArgumentException(sprintf('Property "%s" is unknown or is not a message property', $attributeName));
    }

    public function __toString()
    {
        return json_encode(array(
            'routing_key' => $this->getRoutingKey(),
            'body' => (string) $this->body,
            'attributes' => $this->message->getProperties(),
        ));
    }

    private function getHeader($headerName)
    {
        $headers = $this->getHeaders();
        if(array_key_exists($headerName, $headers))
        {
            return $headers[$headerName];
        }

        return null;
    }

    public function getAttributes()
    {
        return $this->message->getProperties();
    }

    public function isLastRetry($retryOccurence = \Puzzle\AMQP\Consumers\Retry::DEFAULT_RETRY_OCCURENCE)
    {
        $retryHeader = $this->getHeader(\Puzzle\AMQP\Consumers\Retry::DEFAULT_RETRY_HEADER);

        return ($retryHeader !== null && (int) $retryHeader >= $retryOccurence);
    }

    public function getRoutingKeyFromHeader()
    {
        return $this->getHeader('routing_key');
    }
}


1		<?php
2
3		namespace Puzzle\AMQP\Workers;
4
5		use Puzzle\AMQP\ReadableMessage;
6		use Puzzle\AMQP\Messages\BodyFactory;
7
8		class MessageAdapter implements ReadableMessage
9		{
10		private
11		$message,
		1 ignored issue – show Coding Style introduced 2017-03-09 13:53 UTC by Report Bug Copy Issue Report The visibility should be declared for property `$message`. The PSR-2 coding standard requires that all properties in a class have their visibility explicitly declared. If you declare a property using class A { var $property; } the property is implicitly global. To learn more about the PSR-2, please see the PHP-FIG site on the PSR-2. Loading history...
12		$body;
13
14	21	public function __construct(\Swarrot\Broker\Message $message)
15		{
16	21	$this->message = $message;
17
18	21	$this->body = (new BodyFactory())->create(
19	21	$this->getContentType(),
20	20	$message->getBody()
21	20	);
22	20	}
23
24	8	public function getRoutingKey()
25		{
26	8	return $this->getAttribute('routing_key');
27		}
28
29	21	public function getContentType()
30		{
31	21	return $this->getAttribute('content_type');
32		}
33
34	1	public function getAppId()
35		{
36	1	return $this->getAttribute('app_id');
37		}
38
39	16	public function getHeaders()
40		{
41	16	return $this->getAttribute('headers');
		0 ignored issues – show Bug Best Practice introduced 2017-03-16 15:15 UTC by Report Bug Copy Issue Report The return type of `return $this->getAttribute('headers');` (`string`) is incompatible with the return type declared by the interface `Puzzle\AMQP\MessageMetadata::getHeaders` of type `array`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
42		}
43
44	4	public function getBody()
45		{
46	4	return $this->body;
47		}
48
49	2	public function getBodyInOriginalFormat()
50		{
51	2	return $this->body->inOriginalFormat();
52		}
53
54	21	public function getAttribute($attributeName)
55		{
56	21	$messageProperties = $this->message->getProperties();
57	21	if(array_key_exists($attributeName, $messageProperties))
58	21	{
59	20	return $messageProperties[$attributeName];
60		}
61
62	2	throw new \InvalidArgumentException(sprintf('Property "%s" is unknown or is not a message property', $attributeName));
63		}
64
65	3	public function __toString()
66		{
67	3	return json_encode(array(
68	3	'routing_key' => $this->getRoutingKey(),
69	3	'body' => (string) $this->body,
70	3	'attributes' => $this->message->getProperties(),
71	3	));
72		}
73
74	14	private function getHeader($headerName)
75		{
76	14	$headers = $this->getHeaders();
77	14	if(array_key_exists($headerName, $headers))
78	14	{
79	12	return $headers[$headerName];
80		}
81
82	2	return null;
83		}
84
85	3	public function getAttributes()
86		{
87	3	return $this->message->getProperties();
88		}
89
90	11	public function isLastRetry($retryOccurence = \Puzzle\AMQP\Consumers\Retry::DEFAULT_RETRY_OCCURENCE)
91		{
92	11	$retryHeader = $this->getHeader(\Puzzle\AMQP\Consumers\Retry::DEFAULT_RETRY_HEADER);
93
94	11	return ($retryHeader !== null && (int) $retryHeader >= $retryOccurence);
95		}
96
97	3	public function getRoutingKeyFromHeader()
98		{
99	3	return $this->getHeader('routing_key');
100		}
101		}
102

puzzle-org / amqp

Pull Request — master (#14)

MessageAdapter::__construct() A

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