Channel - Code Metrics - Inspection of "Fix some value types" - skolodyazhnyy/butter-amqplib - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#1)

by Sergey

created 2016-10-21 10:27 UTC

Channel F

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	553
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	34

Test Coverage

Coverage

98.68%

Importance

Changes

Metric	Value
wmc	59
lcom	1
cbo	34
dl	0
loc	553
ccs	224
cts	227
cp	0.9868
rs	1.3043
c	0
b	0
f	0

35 Methods

Rating	Name	Size	Complexity
A	__construct()	5	1
A	serve()	6	1
A	close()	9	1
A	qos()	7	1
A	exchange()	4	1
A	queue()	4	1
B	consume()	27	4
A	open()	15	2
A	flow()	12	2
B	get()	25	2
A	recover()	7	1
A	cancel()	14	2
A	publish()	18	1
A	ack()	6	1
A	reject()	7	2
A	onReturn()	6	1
A	selectConfirm()	14	2
A	selectTx()	9	1
A	txCommit()	11	2
A	txRollback()	11	2
A	hasConsumer()	4	1
A	getConsumerTags()	4	1
A	getStatus()	4	1
A	send()	6	1
B	dispatch()	18	8
A	onBasicDeliver()	23	2
A	onBasicReturn()	22	2
A	onBasicAck()	4	1
A	onBasicNack()	4	1
A	confirmPublishing()	10	2
A	onBasicCancel()	8	2
A	onChannelFlow()	6	2
A	onChannelClose()	8	1
A	readHeader()	4	1
A	readContent()	11	2

How to fix Complexity

<?php

namespace ButterAMQP\AMQP091;

use ButterAMQP\ChannelInterface;
use ButterAMQP\Confirm;
use ButterAMQP\Delivery;
use ButterAMQP\Exception\AMQPException;
use ButterAMQP\Exception\NoReturnException;
use ButterAMQP\Exception\TransactionNotSelectedException;
use ButterAMQP\Exception\UnknownConsumerTagException;
use ButterAMQP\AMQP091\Framing\Content;
use ButterAMQP\AMQP091\Framing\Frame;
use ButterAMQP\AMQP091\Framing\Header;
use ButterAMQP\AMQP091\Framing\Method\BasicAck;
use ButterAMQP\AMQP091\Framing\Method\BasicCancel;
use ButterAMQP\AMQP091\Framing\Method\BasicCancelOk;
use ButterAMQP\AMQP091\Framing\Method\BasicConsume;
use ButterAMQP\AMQP091\Framing\Method\BasicConsumeOk;
use ButterAMQP\AMQP091\Framing\Method\BasicDeliver;
use ButterAMQP\AMQP091\Framing\Method\BasicGet;
use ButterAMQP\AMQP091\Framing\Method\BasicGetEmpty;
use ButterAMQP\AMQP091\Framing\Method\BasicGetOk;
use ButterAMQP\AMQP091\Framing\Method\BasicNack;
use ButterAMQP\AMQP091\Framing\Method\BasicPublish;
use ButterAMQP\AMQP091\Framing\Method\BasicQos;
use ButterAMQP\AMQP091\Framing\Method\BasicQosOk;
use ButterAMQP\AMQP091\Framing\Method\BasicRecover;
use ButterAMQP\AMQP091\Framing\Method\BasicRecoverOk;
use ButterAMQP\AMQP091\Framing\Method\BasicReject;
use ButterAMQP\AMQP091\Framing\Method\BasicReturn;
use ButterAMQP\AMQP091\Framing\Method\ChannelClose;
use ButterAMQP\AMQP091\Framing\Method\ChannelCloseOk;
use ButterAMQP\AMQP091\Framing\Method\ChannelFlow;
use ButterAMQP\AMQP091\Framing\Method\ChannelFlowOk;
use ButterAMQP\AMQP091\Framing\Method\ChannelOpen;
use ButterAMQP\AMQP091\Framing\Method\ChannelOpenOk;
use ButterAMQP\AMQP091\Framing\Method\ConfirmSelect;
use ButterAMQP\AMQP091\Framing\Method\ConfirmSelectOk;
use ButterAMQP\AMQP091\Framing\Method\TxCommit;
use ButterAMQP\AMQP091\Framing\Method\TxCommitOk;
use ButterAMQP\AMQP091\Framing\Method\TxRollback;
use ButterAMQP\AMQP091\Framing\Method\TxRollbackOk;
use ButterAMQP\AMQP091\Framing\Method\TxSelect;
use ButterAMQP\AMQP091\Framing\Method\TxSelectOk;
use ButterAMQP\Message;
use ButterAMQP\Returned;

class Channel implements ChannelInterface, WireSubscriberInterface
{
    const STATUS_CLOSED = 0;
    const STATUS_READY = 1;
    const STATUS_INACTIVE = 2;

    const MODE_NORMAL = 0;
    const MODE_CONFIRM = 1;
    const MODE_TX = 2;

    /**
     * @var int
     */
    private $id;

    /**
     * @var WireInterface
     */
    private $wire;

    /**
     * @var int
     */
    private $status = self::STATUS_CLOSED;

    /**
     * @var int
     */
    private $mode = self::MODE_NORMAL;

    /**
     * @var callable[]
     */
    private $consumers = [];

    /**
     * @var callable
     */
    private $returnCallable;

    /**
     * @var callable
     */
    private $confirmCallable;

    /**
     * @param WireInterface $wire
     * @param int           $id
     */
    public function __construct(WireInterface $wire, $id)
    {
        $this->id = $id;
        $this->wire = $wire;
    }

    /**
     * {@inheritdoc}
     */
    public function open()
    {
        if ($this->status != self::STATUS_CLOSED) {
            return $this;
        }

        $this->wire->subscribe($this->id, $this);
        $this->wire->send(new ChannelOpen($this->id, ''));
        $this->wire->wait($this->id, ChannelOpenOk::class);

        $this->status = self::STATUS_READY;
        $this->mode = self::MODE_NORMAL;

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function flow($active)
    {
        $this->wire->send(new ChannelFlow($this->id, $active));

        /** @var ChannelFlowOk $frame */
        $frame = $this->wire->wait($this->id, ChannelFlowOk::class);

        $this->status = $frame->isActive() ? self::STATUS_READY :
            self::STATUS_INACTIVE;

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function serve($blocking = true)
    {
        $this->wire->next($blocking);

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function close()
    {
        $this->wire->send(new ChannelClose($this->id, 0, '', 0, 0));
        $this->wire->wait($this->id, ChannelCloseOk::class);

        $this->status = self::STATUS_CLOSED;

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function qos($prefetchSize, $prefetchCount, $globally = false)
    {
        $this->wire->send(new BasicQos($this->id, $prefetchSize, $prefetchCount, $globally));
        $this->wire->wait($this->id, BasicQosOk::class);

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function exchange($name)
    {
        return new Exchange($this->wire, $this->id, $name);
    }

    /**
     * {@inheritdoc}
     */
    public function queue($name = '')
    {
        return new Queue($this->wire, $this->id, $name);
    }

    /**
     * {@inheritdoc}
     */
    public function consume($queue, callable $callback, $flags = 0, $tag = '', array $arguments = [])
    {
        if (empty($tag) && $flags & Consumer::FLAG_NO_WAIT) {
            $tag = uniqid('php-consumer-');
        }

        $this->wire->send(new BasicConsume(
            $this->id,
            0,
            $queue,
            $tag,
            $flags & Consumer::FLAG_NO_LOCAL,
            $flags & Consumer::FLAG_NO_ACK,
            $flags & Consumer::FLAG_EXCLUSIVE,
            $flags & Consumer::FLAG_NO_WAIT,
            $arguments
        ));

        if (!($flags & Consumer::FLAG_NO_WAIT)) {
            $tag = $this->wire->wait($this->id, BasicConsumeOk::class)
abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
                ->getConsumerTag();
        }

        $this->consumers[$tag] = $callback;

        return new Consumer($this, $tag);
    }

    /**
     * {@inheritdoc}
     */
    public function get($queue, $withAck = true)
    {
        /* @var BasicGetOk|BasicGetEmpty $frame */
        $this->wire->send(new BasicGet($this->id, 0, $queue, !$withAck));

        $frame = $this->wire->wait($this->id, [BasicGetOk::class, BasicGetEmpty::class]);

        if ($frame instanceof BasicGetEmpty) {
            return null;
        }

        $header = $this->readHeader();
        $content = $this->readContent($header->getSize());

        return new Delivery(
            $this,
            '',
            $frame->getDeliveryTag(),
            $frame->isRedelivered(),
            $frame->getExchange(),
            $frame->getRoutingKey(),
            $content,
            $header->getProperties()
        );
    }

    /**
     * {@inheritdoc}
     */
    public function recover($requeue = true)
    {
        $this->wire->send(new BasicRecover($this->id, $requeue));
        $this->wire->wait($this->id, BasicRecoverOk::class);

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function cancel($tag, $flags = 0)
    {
        $this->wire->send(new BasicCancel($this->id, $tag, $flags & Consumer::FLAG_NO_WAIT));

        unset($this->consumers[$tag]);

        if ($flags & Consumer::FLAG_NO_WAIT) {
            return $this;
        }

        $this->wire->wait($this->id, BasicCancelOk::class);

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function publish(Message $message, $exchange = '', $routingKey = '', $flags = 0)
    {
        $this->wire->send(new BasicPublish(
            $this->id,
            0,
            $exchange,
            $routingKey,
            (bool) ($flags & Message::FLAG_MANDATORY),
            (bool) ($flags & Message::FLAG_IMMEDIATE)
        ));

        $body = $message->getBody();

        $this->wire->send(new Header($this->id, 60, 0, strlen($body), $message->getProperties()));
        $this->wire->send(new Content($this->id, $body));

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function ack($deliveryTag, $multiple = false)
    {
        $this->wire->send(new BasicAck($this->id, $deliveryTag, $multiple));

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function reject($deliveryTag, $requeue = true, $multiple = false)
    {
        $multiple ? $this->wire->send(new BasicNack($this->id, $deliveryTag, $multiple, $requeue)) :
            $this->wire->send(new BasicReject($this->id, $deliveryTag, $requeue));

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function onReturn(callable $callable)
    {
        $this->returnCallable = $callable;

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function selectConfirm(callable $callable, $noWait = false)
    {
        $this->confirmCallable = $callable;

        $this->wire->send(new ConfirmSelect($this->id, $noWait));

        if (!$noWait) {
            $this->wire->wait($this->id, ConfirmSelectOk::class);
        }

        $this->mode = self::MODE_CONFIRM;

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function selectTx()
    {
        $this->wire->send(new TxSelect($this->id));
        $this->wire->wait($this->id, TxSelectOk::class);

        $this->mode = self::MODE_TX;

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function txCommit()
    {
        if ($this->mode != self::MODE_TX) {
            throw new TransactionNotSelectedException('Channel is not in transaction mode. Use Channel::selectTx() to select transaction mode on this channel.');
        }

        $this->wire->send(new TxCommit($this->id));
        $this->wire->wait($this->id, TxCommitOk::class);

        return;
    }

    /**
     * {@inheritdoc}
     */
    public function txRollback()
    {
        if ($this->mode != self::MODE_TX) {
            throw new TransactionNotSelectedException('Channel is not in transaction mode. Use Channel::selectTx() to select transaction mode on this channel.');
        }

        $this->wire->send(new TxRollback($this->id));
        $this->wire->wait($this->id, TxRollbackOk::class);

        return;
    }

    /**
     * {@inheritdoc}
     */
    public function hasConsumer($tag)
    {
        return isset($this->consumers[(string) $tag]);
    }

    /**
     * {@inheritdoc}
     */
    public function getConsumerTags()
    {
        return array_keys($this->consumers);
    }

    /**
     * @return string
     */
    public function getStatus()
    {
        return $this->status;
    }

    /**
     * Sends frame to the server.
     *
     * @param Frame $frame
     *
     * @return $this
     */
    private function send(Frame $frame)
    {
        $this->wire->send($frame);

        return $this;
    }

    /**
     * @param Frame $frame
     */
    public function dispatch(Frame $frame)
    {
        if ($frame instanceof ChannelClose) {
            $this->onChannelClose($frame);
        } elseif ($frame instanceof ChannelFlow) {
            $this->onChannelFlow($frame);
        } elseif ($frame instanceof BasicDeliver) {
            $this->onBasicDeliver($frame);
        } elseif ($frame instanceof BasicReturn) {
            $this->onBasicReturn($frame);
        } elseif ($frame instanceof BasicAck) {
            $this->onBasicAck($frame);
        } elseif ($frame instanceof BasicNack) {
            $this->onBasicNack($frame);
        } elseif ($frame instanceof BasicCancel) {
            $this->onBasicCancel($frame);
        }
    }

    /**
     * @param BasicDeliver $frame
     *
     * @throws \Exception
     */
    private function onBasicDeliver(BasicDeliver $frame)
    {
        $header = $this->readHeader();
        $content = $this->readContent($header->getSize());

        if (!isset($this->consumers[$frame->getConsumerTag()])) {
            throw new UnknownConsumerTagException(sprintf(
                'Consumer with tag "%s" does not exist',
                $frame->getConsumerTag()
            ));
        }

        call_user_func($this->consumers[$frame->getConsumerTag()], new Delivery(
            $this,
            $frame->getConsumerTag(),
            $frame->getDeliveryTag(),
            $frame->isRedelivered(),
            $frame->getExchange(),
            $frame->getRoutingKey(),
            $content,
            $header->getProperties()
        ));
    }

    /**
     * @param BasicReturn $frame
     *
     * @throws NoReturnException
     */
    private function onBasicReturn(BasicReturn $frame)
    {
        $header = $this->readHeader();
        $content = $this->readContent($header->getSize());

        if (!$this->returnCallable) {
            throw new NoReturnException(
                'A message was returned but there is no return handler. Make sure you setup a handler for returned '.
                'messages using Channel::onReturn method, or remove MANDATORY and IMMEDIATE flags when publishing '.
                'messages.'
            );
        }

        call_user_func($this->returnCallable, new Returned(
            $frame->getReplyCode(),
            $frame->getReplyText(),
            $frame->getExchange(),
            $frame->getRoutingKey(),
            $content,
            $header->getProperties()
        ));
    }

    /**
     * @param BasicAck $frame
     */
    private function onBasicAck(BasicAck $frame)
    {
        $this->confirmPublishing(true, $frame->getDeliveryTag(), $frame->isMultiple());
    }

    /**
     * @param BasicNack $frame
     */
    private function onBasicNack(BasicNack $frame)
    {
        $this->confirmPublishing(false, $frame->getDeliveryTag(), $frame->isMultiple());
    }

    /**
     * @param bool   $ok
     * @param string $tag
     * @param bool   $multiple
     */
    private function confirmPublishing($ok, $tag, $multiple)
    {
        if (!$this->confirmCallable) {
            throw new \RuntimeException(
                'Something is wrong: channel is in confirm mode, but confirm callable is not set'
            );
        }

        call_user_func($this->confirmCallable, new Confirm($ok, $tag, $multiple));
    }

    /**
     * @param BasicCancel $frame
     */
    private function onBasicCancel(BasicCancel $frame)
    {
        unset($this->consumers[$frame->getConsumerTag()]);

        if (!$frame->isNoWait()) {
            $this->wire->send(new BasicCancelOk($this->id, $frame->getConsumerTag()));
        }
    }

    /**
     * @param ChannelFlow $frame
     */
    private function onChannelFlow(ChannelFlow $frame)
    {
        $this->wire->send(new ChannelFlowOk($this->id, $frame->isActive()));

        $this->status = $frame->isActive() ? self::STATUS_READY : self::STATUS_INACTIVE;
    }

    /**
     * @param ChannelClose $frame
     *
     * @throws AMQPException
     */
    private function onChannelClose(ChannelClose $frame)
    {
        $this->wire->send(new ChannelCloseOk($this->id));

        $this->status = self::STATUS_CLOSED;

        throw AMQPException::make($frame->getReplyText(), $frame->getReplyCode());
    }

    /**
     * @return Header
     */
    private function readHeader()
    {
        return $this->wire->wait($this->id, Header::class);
    }

    /**
     * @param int $size
     *
     * @return string
     */
    private function readContent($size)
    {
        $content = '';

        while ($size > strlen($content)) {
            $content .= $this->wire->wait($this->id, Content::class)
abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
                ->getData();
        }

        return $content;
    }
}


Pull Request — master (#1)

Channel F

Complexity

Size/Duplication

Coupling/Cohesion

Test Coverage

Importance

35 Methods

How to fix Complexity

Complex Class

Available Fixes

Available Fixes

1		<?php
2
3		namespace ButterAMQP\AMQP091;
4
5		use ButterAMQP\ChannelInterface;
6		use ButterAMQP\Confirm;
7		use ButterAMQP\Delivery;
8		use ButterAMQP\Exception\AMQPException;
9		use ButterAMQP\Exception\NoReturnException;
10		use ButterAMQP\Exception\TransactionNotSelectedException;
11		use ButterAMQP\Exception\UnknownConsumerTagException;
12		use ButterAMQP\AMQP091\Framing\Content;
13		use ButterAMQP\AMQP091\Framing\Frame;
14		use ButterAMQP\AMQP091\Framing\Header;
15		use ButterAMQP\AMQP091\Framing\Method\BasicAck;
16		use ButterAMQP\AMQP091\Framing\Method\BasicCancel;
17		use ButterAMQP\AMQP091\Framing\Method\BasicCancelOk;
18		use ButterAMQP\AMQP091\Framing\Method\BasicConsume;
19		use ButterAMQP\AMQP091\Framing\Method\BasicConsumeOk;
20		use ButterAMQP\AMQP091\Framing\Method\BasicDeliver;
21		use ButterAMQP\AMQP091\Framing\Method\BasicGet;
22		use ButterAMQP\AMQP091\Framing\Method\BasicGetEmpty;
23		use ButterAMQP\AMQP091\Framing\Method\BasicGetOk;
24		use ButterAMQP\AMQP091\Framing\Method\BasicNack;
25		use ButterAMQP\AMQP091\Framing\Method\BasicPublish;
26		use ButterAMQP\AMQP091\Framing\Method\BasicQos;
27		use ButterAMQP\AMQP091\Framing\Method\BasicQosOk;
28		use ButterAMQP\AMQP091\Framing\Method\BasicRecover;
29		use ButterAMQP\AMQP091\Framing\Method\BasicRecoverOk;
30		use ButterAMQP\AMQP091\Framing\Method\BasicReject;
31		use ButterAMQP\AMQP091\Framing\Method\BasicReturn;
32		use ButterAMQP\AMQP091\Framing\Method\ChannelClose;
33		use ButterAMQP\AMQP091\Framing\Method\ChannelCloseOk;
34		use ButterAMQP\AMQP091\Framing\Method\ChannelFlow;
35		use ButterAMQP\AMQP091\Framing\Method\ChannelFlowOk;
36		use ButterAMQP\AMQP091\Framing\Method\ChannelOpen;
37		use ButterAMQP\AMQP091\Framing\Method\ChannelOpenOk;
38		use ButterAMQP\AMQP091\Framing\Method\ConfirmSelect;
39		use ButterAMQP\AMQP091\Framing\Method\ConfirmSelectOk;
40		use ButterAMQP\AMQP091\Framing\Method\TxCommit;
41		use ButterAMQP\AMQP091\Framing\Method\TxCommitOk;
42		use ButterAMQP\AMQP091\Framing\Method\TxRollback;
43		use ButterAMQP\AMQP091\Framing\Method\TxRollbackOk;
44		use ButterAMQP\AMQP091\Framing\Method\TxSelect;
45		use ButterAMQP\AMQP091\Framing\Method\TxSelectOk;
46		use ButterAMQP\Message;
47		use ButterAMQP\Returned;
48
49		class Channel implements ChannelInterface, WireSubscriberInterface
50		{
51		const STATUS_CLOSED = 0;
52		const STATUS_READY = 1;
53		const STATUS_INACTIVE = 2;
54
55		const MODE_NORMAL = 0;
56		const MODE_CONFIRM = 1;
57		const MODE_TX = 2;
58
59		/**
60		* @var int
61		*/
62		private $id;
63
64		/**
65		* @var WireInterface
66		*/
67		private $wire;
68
69		/**
70		* @var int
71		*/
72		private $status = self::STATUS_CLOSED;
73
74		/**
75		* @var int
76		*/
77		private $mode = self::MODE_NORMAL;
78
79		/**
80		* @var callable[]
81		*/
82		private $consumers = [];
83
84		/**
85		* @var callable
86		*/
87		private $returnCallable;
88
89		/**
90		* @var callable
91		*/
92		private $confirmCallable;
93
94		/**
95		* @param WireInterface $wire
96		* @param int $id
97		*/
98	56	public function __construct(WireInterface $wire, $id)
99		{
100	56	$this->id = $id;
101	56	$this->wire = $wire;
102	56	}
103
104		/**
105		* {@inheritdoc}
106		*/
107	20	public function open()
108		{
109	19	if ($this->status != self::STATUS_CLOSED) {
110	1	return $this;
111		}
112
113	19	$this->wire->subscribe($this->id, $this);
114	20	$this->wire->send(new ChannelOpen($this->id, ''));
115	19	$this->wire->wait($this->id, ChannelOpenOk::class);
116
117	19	$this->status = self::STATUS_READY;
118	19	$this->mode = self::MODE_NORMAL;
119
120	19	return $this;
121		}
122
123		/**
124		* {@inheritdoc}
125		*/
126	1	public function flow($active)
127		{
128	1	$this->wire->send(new ChannelFlow($this->id, $active));
129
130		/** @var ChannelFlowOk $frame */
131	1	$frame = $this->wire->wait($this->id, ChannelFlowOk::class);
132
133	1	$this->status = $frame->isActive() ? self::STATUS_READY :
134	1	self::STATUS_INACTIVE;
135
136	1	return $this;
137		}
138
139		/**
140		* {@inheritdoc}
141		*/
142	1	public function serve($blocking = true)
143		{
144	1	$this->wire->next($blocking);
145
146	1	return $this;
147		}
148
149		/**
150		* {@inheritdoc}
151		*/
152	1	public function close()
153		{
154	1	$this->wire->send(new ChannelClose($this->id, 0, '', 0, 0));
155	1	$this->wire->wait($this->id, ChannelCloseOk::class);
156
157	1	$this->status = self::STATUS_CLOSED;
158
159	1	return $this;
160		}
161
162		/**
163		* {@inheritdoc}
164		*/
165	1	public function qos($prefetchSize, $prefetchCount, $globally = false)
166		{
167	1	$this->wire->send(new BasicQos($this->id, $prefetchSize, $prefetchCount, $globally));
168	1	$this->wire->wait($this->id, BasicQosOk::class);
169
170	1	return $this;
171		}
172
173		/**
174		* {@inheritdoc}
175		*/
176	4	public function exchange($name)
177		{
178	4	return new Exchange($this->wire, $this->id, $name);
179		}
180
181		/**
182		* {@inheritdoc}
183		*/
184	14	public function queue($name = '')
185		{
186	14	return new Queue($this->wire, $this->id, $name);
187		}
188
189		/**
190		* {@inheritdoc}
191		*/
192	11	public function consume($queue, callable $callback, $flags = 0, $tag = '', array $arguments = [])
193		{
194	11	if (empty($tag) && $flags & Consumer::FLAG_NO_WAIT) {
195	1	$tag = uniqid('php-consumer-');
196	1	}
197
198	11	$this->wire->send(new BasicConsume(
199	11	$this->id,
200	11	0,
201	11	$queue,
202	11	$tag,
203	11	$flags & Consumer::FLAG_NO_LOCAL,
204	11	$flags & Consumer::FLAG_NO_ACK,
205	11	$flags & Consumer::FLAG_EXCLUSIVE,
206	11	$flags & Consumer::FLAG_NO_WAIT,
207		$arguments
208	11	));
209
210	11	if (!($flags & Consumer::FLAG_NO_WAIT)) {
211	7	$tag = $this->wire->wait($this->id, BasicConsumeOk::class)
		0 ignored issues – show Bug introduced 2016-10-21 10:31 UTC by Report Bug Copy Issue Report It seems like you code against a specific sub-type and not the parent class `ButterAMQP\AMQP091\Framing\Frame` as the method `getConsumerTag()` does only exist in the following sub-classes of `ButterAMQP\AMQP091\Framing\Frame`: `ButterAMQP\AMQP091\Framing\Method\BasicCancel`, `ButterAMQP\AMQP091\Framing\Method\BasicCancelOk`, `ButterAMQP\AMQP091\Framing\Method\BasicConsume`, `ButterAMQP\AMQP091\Framing\Method\BasicConsumeOk`, `ButterAMQP\AMQP091\Framing\Method\BasicDeliver`. Maybe you want to `instanceof` check for one of these explicitly? Let’s take a look at an example: abstract class User { /** @return string / abstract public function getPassword(); } class MyUser extends User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the parent class: abstract class User { /** @return string / abstract public function getPassword(); /* @return string */ abstract public function getDisplayName(); } Loading history...
212	7	->getConsumerTag();
213	7	}
214
215	11	$this->consumers[$tag] = $callback;
216
217	11	return new Consumer($this, $tag);
218		}
219
220		/**
221		* {@inheritdoc}
222		*/
223	7	public function get($queue, $withAck = true)
224		{
225		/* @var BasicGetOk\|BasicGetEmpty $frame */
226	7	$this->wire->send(new BasicGet($this->id, 0, $queue, !$withAck));
227
228	7	$frame = $this->wire->wait($this->id, [BasicGetOk::class, BasicGetEmpty::class]);
229
230	7	if ($frame instanceof BasicGetEmpty) {
231	2	return null;
232		}
233
234	5	$header = $this->readHeader();
235	5	$content = $this->readContent($header->getSize());
236
237	5	return new Delivery(
238	5	$this,
239	5	'',
240	5	$frame->getDeliveryTag(),
241	5	$frame->isRedelivered(),
242	5	$frame->getExchange(),
243	5	$frame->getRoutingKey(),
244	5	$content,
245	5	$header->getProperties()
246	5	);
247		}
248
249		/**
250		* {@inheritdoc}
251		*/
252	2	public function recover($requeue = true)
253		{
254	2	$this->wire->send(new BasicRecover($this->id, $requeue));
255	2	$this->wire->wait($this->id, BasicRecoverOk::class);
256
257	2	return $this;
258		}
259
260		/**
261		* {@inheritdoc}
262		*/
263	6	public function cancel($tag, $flags = 0)
264		{
265	6	$this->wire->send(new BasicCancel($this->id, $tag, $flags & Consumer::FLAG_NO_WAIT));
266
267	6	unset($this->consumers[$tag]);
268
269	6	if ($flags & Consumer::FLAG_NO_WAIT) {
270	1	return $this;
271		}
272
273	5	$this->wire->wait($this->id, BasicCancelOk::class);
274
275	5	return $this;
276		}
277
278		/**
279		* {@inheritdoc}
280		*/
281	15	public function publish(Message $message, $exchange = '', $routingKey = '', $flags = 0)
282		{
283	15	$this->wire->send(new BasicPublish(
284	15	$this->id,
285	15	0,
286	15	$exchange,
287	15	$routingKey,
288	15	(bool) ($flags & Message::FLAG_MANDATORY),
289	15	(bool) ($flags & Message::FLAG_IMMEDIATE)
290	15	));
291
292	15	$body = $message->getBody();
293
294	15	$this->wire->send(new Header($this->id, 60, 0, strlen($body), $message->getProperties()));
295	15	$this->wire->send(new Content($this->id, $body));
296
297	15	return $this;
298		}
299
300		/**
301		* {@inheritdoc}
302		*/
303	6	public function ack($deliveryTag, $multiple = false)
304		{
305	6	$this->wire->send(new BasicAck($this->id, $deliveryTag, $multiple));
306
307	6	return $this;
308		}
309
310		/**
311		* {@inheritdoc}
312		*/
313	4	public function reject($deliveryTag, $requeue = true, $multiple = false)
314		{
315	4	$multiple ? $this->wire->send(new BasicNack($this->id, $deliveryTag, $multiple, $requeue)) :
316	3	$this->wire->send(new BasicReject($this->id, $deliveryTag, $requeue));
317
318	4	return $this;
319		}
320
321		/**
322		* {@inheritdoc}
323		*/
324	2	public function onReturn(callable $callable)
325		{
326	2	$this->returnCallable = $callable;
327
328	2	return $this;
329		}
330
331		/**
332		* {@inheritdoc}
333		*/
334	5	public function selectConfirm(callable $callable, $noWait = false)
335		{
336	5	$this->confirmCallable = $callable;
337
338	5	$this->wire->send(new ConfirmSelect($this->id, $noWait));
339
340	5	if (!$noWait) {
341	4	$this->wire->wait($this->id, ConfirmSelectOk::class);
342	4	}
343
344	5	$this->mode = self::MODE_CONFIRM;
345
346	5	return $this;
347		}
348
349		/**
350		* {@inheritdoc}
351		*/
352	7	public function selectTx()
353		{
354	7	$this->wire->send(new TxSelect($this->id));
355	7	$this->wire->wait($this->id, TxSelectOk::class);
356
357	7	$this->mode = self::MODE_TX;
358
359	7	return $this;
360		}
361
362		/**
363		* {@inheritdoc}
364		*/
365	6	public function txCommit()
366		{
367	6	if ($this->mode != self::MODE_TX) {
368	1	throw new TransactionNotSelectedException('Channel is not in transaction mode. Use Channel::selectTx() to select transaction mode on this channel.');
369		}
370
371	5	$this->wire->send(new TxCommit($this->id));
372	5	$this->wire->wait($this->id, TxCommitOk::class);
373
374	5	return;
375		}
376
377		/**
378		* {@inheritdoc}
379		*/
380	4	public function txRollback()
381		{
382	4	if ($this->mode != self::MODE_TX) {
383	1	throw new TransactionNotSelectedException('Channel is not in transaction mode. Use Channel::selectTx() to select transaction mode on this channel.');
384		}
385
386	3	$this->wire->send(new TxRollback($this->id));
387	3	$this->wire->wait($this->id, TxRollbackOk::class);
388
389	3	return;
390		}
391
392		/**
393		* {@inheritdoc}
394		*/
395	10	public function hasConsumer($tag)
396		{
397	10	return isset($this->consumers[(string) $tag]);
398		}
399
400		/**
401		* {@inheritdoc}
402		*/
403	3	public function getConsumerTags()
404		{
405	3	return array_keys($this->consumers);
406		}
407
408		/**
409		* @return string
410		*/
411	3	public function getStatus()
412		{
413	3	return $this->status;
414		}
415
416		/**
417		* Sends frame to the server.
418		*
419		* @param Frame $frame
420		*
421		* @return $this
422		*/
423		private function send(Frame $frame)
424		{
425		$this->wire->send($frame);
426
427		return $this;
428		}
429
430		/**
431		* @param Frame $frame
432		*/
433	29	public function dispatch(Frame $frame)
434		{
435	29	if ($frame instanceof ChannelClose) {
436	3	$this->onChannelClose($frame);
437	28	} elseif ($frame instanceof ChannelFlow) {
438	1	$this->onChannelFlow($frame);
439	28	} elseif ($frame instanceof BasicDeliver) {
440	6	$this->onBasicDeliver($frame);
441	26	} elseif ($frame instanceof BasicReturn) {
442	4	$this->onBasicReturn($frame);
443	24	} elseif ($frame instanceof BasicAck) {
444	3	$this->onBasicAck($frame);
445	22	} elseif ($frame instanceof BasicNack) {
446	2	$this->onBasicNack($frame);
447	20	} elseif ($frame instanceof BasicCancel) {
448	3	$this->onBasicCancel($frame);
449	3	}
450	24	}
451
452		/**
453		* @param BasicDeliver $frame
454		*
455		* @throws \Exception
456		*/
457	6	private function onBasicDeliver(BasicDeliver $frame)
458		{
459	6	$header = $this->readHeader();
460	6	$content = $this->readContent($header->getSize());
461
462	6	if (!isset($this->consumers[$frame->getConsumerTag()])) {
463	1	throw new UnknownConsumerTagException(sprintf(
464	1	'Consumer with tag "%s" does not exist',
465	1	$frame->getConsumerTag()
466	1	));
467		}
468
469	5	call_user_func($this->consumers[$frame->getConsumerTag()], new Delivery(
470	5	$this,
471	5	$frame->getConsumerTag(),
472	5	$frame->getDeliveryTag(),
473	5	$frame->isRedelivered(),
474	5	$frame->getExchange(),
475	5	$frame->getRoutingKey(),
476	5	$content,
477	5	$header->getProperties()
478	5	));
479	5	}
480
481		/**
482		* @param BasicReturn $frame
483		*
484		* @throws NoReturnException
485		*/
486	4	private function onBasicReturn(BasicReturn $frame)
487		{
488	4	$header = $this->readHeader();
489	4	$content = $this->readContent($header->getSize());
490
491	4	if (!$this->returnCallable) {
492	2	throw new NoReturnException(
493		'A message was returned but there is no return handler. Make sure you setup a handler for returned '.
494	2	'messages using Channel::onReturn method, or remove MANDATORY and IMMEDIATE flags when publishing '.
495		'messages.'
496	2	);
497		}
498
499	2	call_user_func($this->returnCallable, new Returned(
500	2	$frame->getReplyCode(),
501	2	$frame->getReplyText(),
502	2	$frame->getExchange(),
503	2	$frame->getRoutingKey(),
504	2	$content,
505	2	$header->getProperties()
506	2	));
507	2	}
508
509		/**
510		* @param BasicAck $frame
511		*/
512	3	private function onBasicAck(BasicAck $frame)
513		{
514	3	$this->confirmPublishing(true, $frame->getDeliveryTag(), $frame->isMultiple());
515	2	}
516
517		/**
518		* @param BasicNack $frame
519		*/
520	2	private function onBasicNack(BasicNack $frame)
521		{
522	2	$this->confirmPublishing(false, $frame->getDeliveryTag(), $frame->isMultiple());
523	1	}
524
525		/**
526		* @param bool $ok
527		* @param string $tag
528		* @param bool $multiple
529		*/
530	5	private function confirmPublishing($ok, $tag, $multiple)
531		{
532	5	if (!$this->confirmCallable) {
533	2	throw new \RuntimeException(
534		'Something is wrong: channel is in confirm mode, but confirm callable is not set'
535	2	);
536		}
537
538	3	call_user_func($this->confirmCallable, new Confirm($ok, $tag, $multiple));
539	3	}
540
541		/**
542		* @param BasicCancel $frame
543		*/
544	3	private function onBasicCancel(BasicCancel $frame)
545		{
546	3	unset($this->consumers[$frame->getConsumerTag()]);
547
548	3	if (!$frame->isNoWait()) {
549	1	$this->wire->send(new BasicCancelOk($this->id, $frame->getConsumerTag()));
550	1	}
551	3	}
552
553		/**
554		* @param ChannelFlow $frame
555		*/
556	1	private function onChannelFlow(ChannelFlow $frame)
557		{
558	1	$this->wire->send(new ChannelFlowOk($this->id, $frame->isActive()));
559
560	1	$this->status = $frame->isActive() ? self::STATUS_READY : self::STATUS_INACTIVE;
561	1	}
562
563		/**
564		* @param ChannelClose $frame
565		*
566		* @throws AMQPException
567		*/
568	3	private function onChannelClose(ChannelClose $frame)
569		{
570	3	$this->wire->send(new ChannelCloseOk($this->id));
571
572	3	$this->status = self::STATUS_CLOSED;
573
574	3	throw AMQPException::make($frame->getReplyText(), $frame->getReplyCode());
575		}
576
577		/**
578		* @return Header
579		*/
580	15	private function readHeader()
581		{
582	15	return $this->wire->wait($this->id, Header::class);
583		}
584
585		/**
586		* @param int $size
587		*
588		* @return string
589		*/
590	15	private function readContent($size)
591		{
592	15	$content = '';
593
594	15	while ($size > strlen($content)) {
595	12	$content .= $this->wire->wait($this->id, Content::class)
		0 ignored issues – show Bug introduced 2016-10-21 10:31 UTC by Report Bug Copy Issue Report It seems like you code against a specific sub-type and not the parent class `ButterAMQP\AMQP091\Framing\Frame` as the method `getData()` does only exist in the following sub-classes of `ButterAMQP\AMQP091\Framing\Frame`: `ButterAMQP\AMQP091\Framing\Content`. Maybe you want to `instanceof` check for one of these explicitly? Let’s take a look at an example: abstract class User { /** @return string / abstract public function getPassword(); } class MyUser extends User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the parent class: abstract class User { /** @return string / abstract public function getPassword(); /* @return string */ abstract public function getDisplayName(); } Loading history...
596	12	->getData();
597	12	}
598
599	15	return $content;
600		}
601		}
602

skolodyazhnyy / butter-amqplib

Pull Request — master (#1)

Channel F

Complexity

Size/Duplication

Coupling/Cohesion

Test Coverage

Importance

35 Methods

How to fix Complexity

Complex Class

Available Fixes

Available Fixes

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