Channel::readHeader() - Code Metrics - Inspection of "Small refectoring" - skolodyazhnyy/butter-amqplib - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 2528a8...9eba40 )

by Sergey

created 2016-09-13 19:28 UTC

Channel::readHeader() A

↳ Parent: Channel

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	4
ccs	2
cts	2
cp	1
rs	10
c	0
b	0
f	0
cc	1
eloc	2
nc	1
nop	0
crap	1

<?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);

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

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

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function flow($active)
    {
        /** @var ChannelFlowOk $frame */
        $frame = $this->send(new ChannelFlow($this->id, $active))
            ->wait(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()
    {
        $this->send(new ChannelClose($this->id, 0, '', 0, 0))
            ->wait(ChannelCloseOk::class);

        $this->status = self::STATUS_CLOSED;

        return $this;
    }

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

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

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

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

        return $this;
    }

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

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

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

        $this->wait(BasicCancelOk::class);

        return $this;
    }

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

        $body = $message->getBody();

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

        return $this;
    }

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

        return $this;
    }

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

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

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

        $this->mode = self::MODE_CONFIRM;

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function selectTx()
    {
        $this->send(new TxSelect($this->id))
            ->wait(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.');
        }

        $this->send(new TxCommit($this->id))
            ->wait(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.');
        }

        $this->send(new TxRollback($this->id))
            ->wait(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 string|array $type
     *
     * @return Frame
     */
    private function wait($type)
    {
        return $this->wire->wait($this->id, $type);
    }

    /**
     * @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()
            ));
        }

        $delivery = new Delivery(
            $this,
            $frame->getConsumerTag(),
            $frame->getDeliveryTag(),
            $frame->isRedelivered(),
            $frame->getExchange(),
            $frame->getRoutingKey(),
            $content,
            $header->getProperties()
        );

        call_user_func($this->consumers[$frame->getConsumerTag()], $delivery);
    }

    /**
     * @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.'
            );
        }

        $returned = new Returned(
            $frame->getReplyCode(),
            $frame->getReplyText(),
            $frame->getExchange(),
            $frame->getRoutingKey(),
            $content,
            $header->getProperties()
        );

        call_user_func($this->returnCallable, $returned);
    }

    /**
     * @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()) {
            $this->send(new BasicCancelOk($this->id, $frame->getConsumerTag()));
        }
    }

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

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

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

        $this->status = self::STATUS_CLOSED;

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

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

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

        while ($size > strlen($content)) {
            $content .= $this->wait(Content::class)
                ->getData();
        }

        return $content;
    }
}


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 = $wire;
102	56	}
103
104		/**
105		* {@inheritdoc}
106		*/
107	19	public function open()
108		{
109	19	if ($this->status != self::STATUS_CLOSED) {
110	1	return $this;
111		}
112
113	19	$this->wire->subscribe($this->id, $this);
114
115	19	$this->send(new ChannelOpen($this->id, ''))
116	19	->wait(ChannelOpenOk::class);
117
118	19	$this->status = self::STATUS_READY;
119	19	$this->mode = self::MODE_NORMAL;
120
121	19	return $this;
122		}
123
124		/**
125		* {@inheritdoc}
126		*/
127	1	public function flow($active)
128		{
129		/** @var ChannelFlowOk $frame */
130	1	$frame = $this->send(new ChannelFlow($this->id, $active))
131	1	->wait(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	$this->send(new ChannelClose($this->id, 0, '', 0, 0))
155	1	->wait(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	$this->send(new BasicQos($this->id, $prefetchSize, $prefetchCount, $globally))
168	1	->wait(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->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->wait(BasicConsumeOk::class)
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	$frame = $this->send(new BasicGet($this->id, 0, $queue, !$withAck))
227	7	->wait([BasicGetOk::class, BasicGetEmpty::class]);
228
229	7	if ($frame instanceof BasicGetEmpty) {
230	2	return null;
231		}
232
233	5	$header = $this->readHeader();
234	5	$content = $this->readContent($header->getSize());
235
236	5	return new Delivery(
237	5	$this,
238	5	'',
239	5	$frame->getDeliveryTag(),
240	5	$frame->isRedelivered(),
241	5	$frame->getExchange(),
242	5	$frame->getRoutingKey(),
243	5	$content,
244	5	$header->getProperties()
245	5	);
246		}
247
248		/**
249		* {@inheritdoc}
250		*/
251	2	public function recover($requeue = true)
252		{
253	2	$this->send(new BasicRecover($this->id, $requeue))
254	2	->wait(BasicRecoverOk::class);
255
256	2	return $this;
257		}
258
259		/**
260		* {@inheritdoc}
261		*/
262	6	public function cancel($tag, $flags = 0)
263		{
264	6	$this->send(new BasicCancel($this->id, $tag, $flags & Consumer::FLAG_NO_WAIT));
265
266	6	unset($this->consumers[$tag]);
267
268	6	if ($flags & Consumer::FLAG_NO_WAIT) {
269	1	return $this;
270		}
271
272	5	$this->wait(BasicCancelOk::class);
273
274	5	return $this;
275		}
276
277		/**
278		* {@inheritdoc}
279		*/
280	15	public function publish(Message $message, $exchange = '', $routingKey = '', $flags = 0)
281		{
282	15	$this->send(new BasicPublish(
283	15	$this->id,
284	15	0,
285	15	$exchange,
286	15	$routingKey,
287	15	(bool) ($flags & Message::FLAG_MANDATORY),
288	15	(bool) ($flags & Message::FLAG_IMMEDIATE)
289	15	));
290
291	15	$body = $message->getBody();
292
293	15	$this->send(new Header($this->id, 60, 0, strlen($body), $message->getProperties()));
294	15	$this->send(new Content($this->id, $body));
295
296	15	return $this;
297		}
298
299		/**
300		* {@inheritdoc}
301		*/
302	6	public function ack($deliveryTag, $multiple = false)
303		{
304	6	$this->send(new BasicAck($this->id, $deliveryTag, $multiple));
305
306	6	return $this;
307		}
308
309		/**
310		* {@inheritdoc}
311		*/
312	4	public function reject($deliveryTag, $requeue = true, $multiple = false)
313		{
314	4	$multiple ? $this->send(new BasicNack($this->id, $deliveryTag, $multiple, $requeue)) :
315	3	$this->send(new BasicReject($this->id, $deliveryTag, $requeue));
316
317	4	return $this;
318		}
319
320		/**
321		* {@inheritdoc}
322		*/
323	2	public function onReturn(callable $callable)
324		{
325	2	$this->returnCallable = $callable;
326
327	2	return $this;
328		}
329
330		/**
331		* {@inheritdoc}
332		*/
333	5	public function selectConfirm(callable $callable, $noWait = false)
334		{
335	5	$this->confirmCallable = $callable;
336
337	5	$this->send(new ConfirmSelect($this->id, $noWait));
338
339	5	if (!$noWait) {
340	4	$this->wait(ConfirmSelectOk::class);
341	4	}
342
343	5	$this->mode = self::MODE_CONFIRM;
344
345	5	return $this;
346		}
347
348		/**
349		* {@inheritdoc}
350		*/
351	7	public function selectTx()
352		{
353	7	$this->send(new TxSelect($this->id))
354	7	->wait(TxSelectOk::class);
355
356	7	$this->mode = self::MODE_TX;
357
358	7	return $this;
359		}
360
361		/**
362		* {@inheritdoc}
363		*/
364	6	public function txCommit()
365		{
366	6	if ($this->mode != self::MODE_TX) {
367	1	throw new TransactionNotSelectedException('Channel is not in transaction mode. Use Channel::selectTx() to select transaction mode on this channel.');
368		}
369
370	5	$this->send(new TxCommit($this->id))
371	5	->wait(TxCommitOk::class);
372
373	5	return;
374		}
375
376		/**
377		* {@inheritdoc}
378		*/
379	4	public function txRollback()
380		{
381	4	if ($this->mode != self::MODE_TX) {
382	1	throw new TransactionNotSelectedException('Channel is not in transaction mode. Use Channel::selectTx() to select transaction mode on this channel.');
383		}
384
385	3	$this->send(new TxRollback($this->id))
386	3	->wait(TxRollbackOk::class);
387
388	3	return;
389		}
390
391		/**
392		* {@inheritdoc}
393		*/
394	10	public function hasConsumer($tag)
395		{
396	10	return isset($this->consumers[(string) $tag]);
397		}
398
399		/**
400		* {@inheritdoc}
401		*/
402	3	public function getConsumerTags()
403		{
404	3	return array_keys($this->consumers);
405		}
406
407		/**
408		* @return string
409		*/
410	3	public function getStatus()
411		{
412	3	return $this->status;
413		}
414
415		/**
416		* Sends frame to the server.
417		*
418		* @param Frame $frame
419		*
420		* @return $this
421		*/
422	46	private function send(Frame $frame)
423		{
424	46	$this->wire->send($frame);
425
426	46	return $this;
427		}
428
429		/**
430		* @param string\|array $type
431		*
432		* @return Frame
433		*/
434	37	private function wait($type)
435		{
436	37	return $this->wire->wait($this->id, $type);
437		}
438
439		/**
440		* @param Frame $frame
441		*/
442	29	public function dispatch(Frame $frame)
443		{
444	29	if ($frame instanceof ChannelClose) {
445	3	$this->onChannelClose($frame);
446	28	} elseif ($frame instanceof ChannelFlow) {
447	1	$this->onChannelFlow($frame);
448	28	} elseif ($frame instanceof BasicDeliver) {
449	6	$this->onBasicDeliver($frame);
450	26	} elseif ($frame instanceof BasicReturn) {
451	4	$this->onBasicReturn($frame);
452	24	} elseif ($frame instanceof BasicAck) {
453	3	$this->onBasicAck($frame);
454	22	} elseif ($frame instanceof BasicNack) {
455	2	$this->onBasicNack($frame);
456	20	} elseif ($frame instanceof BasicCancel) {
457	3	$this->onBasicCancel($frame);
458	3	}
459	24	}
460
461		/**
462		* @param BasicDeliver $frame
463		*
464		* @throws \Exception
465		*/
466	6	private function onBasicDeliver(BasicDeliver $frame)
467		{
468	6	$header = $this->readHeader();
469	6	$content = $this->readContent($header->getSize());
470
471	6	if (!isset($this->consumers[$frame->getConsumerTag()])) {
472	1	throw new UnknownConsumerTagException(sprintf(
473	1	'Consumer with tag "%s" does not exist',
474	1	$frame->getConsumerTag()
475	1	));
476		}
477
478	5	$delivery = new Delivery(
479	5	$this,
480	5	$frame->getConsumerTag(),
481	5	$frame->getDeliveryTag(),
482	5	$frame->isRedelivered(),
483	5	$frame->getExchange(),
484	5	$frame->getRoutingKey(),
485	5	$content,
486	5	$header->getProperties()
487	5	);
488
489	5	call_user_func($this->consumers[$frame->getConsumerTag()], $delivery);
490	5	}
491
492		/**
493		* @param BasicReturn $frame
494		*
495		* @throws NoReturnException
496		*/
497	4	private function onBasicReturn(BasicReturn $frame)
498		{
499	4	$header = $this->readHeader();
500	4	$content = $this->readContent($header->getSize());
501
502	4	if (!$this->returnCallable) {
503	2	throw new NoReturnException(
504		'A message was returned but there is no return handler. '.
505	2	'Make sure you setup a handler for returned messages using Channel::onReturn method, '.
506		', or remove MANDATORY and IMMEDIATE flags when publishing messages.'
507	2	);
508		}
509
510	2	$returned = new Returned(
511	2	$frame->getReplyCode(),
512	2	$frame->getReplyText(),
513	2	$frame->getExchange(),
514	2	$frame->getRoutingKey(),
515	2	$content,
516	2	$header->getProperties()
517	2	);
518
519	2	call_user_func($this->returnCallable, $returned);
520	2	}
521
522		/**
523		* @param BasicAck $frame
524		*/
525	3	private function onBasicAck(BasicAck $frame)
526		{
527	3	$this->confirmPublishing(true, $frame->getDeliveryTag(), $frame->isMultiple());
528	2	}
529
530		/**
531		* @param BasicNack $frame
532		*/
533	2	private function onBasicNack(BasicNack $frame)
534		{
535	2	$this->confirmPublishing(false, $frame->getDeliveryTag(), $frame->isMultiple());
536	1	}
537
538		/**
539		* @param bool $ok
540		* @param string $tag
541		* @param bool $multiple
542		*/
543	5	private function confirmPublishing($ok, $tag, $multiple)
544		{
545	5	if (!$this->confirmCallable) {
546	2	throw new \RuntimeException(
547		'Something is wrong: channel is in confirm mode, but confirm callable is not set'
548	2	);
549		}
550
551	3	call_user_func($this->confirmCallable, new Confirm($ok, $tag, $multiple));
552	3	}
553
554		/**
555		* @param BasicCancel $frame
556		*/
557	3	private function onBasicCancel(BasicCancel $frame)
558		{
559	3	unset($this->consumers[$frame->getConsumerTag()]);
560
561	3	if (!$frame->isNoWait()) {
562	1	$this->send(new BasicCancelOk($this->id, $frame->getConsumerTag()));
563	1	}
564	3	}
565
566		/**
567		* @param ChannelFlow $frame
568		*/
569	1	private function onChannelFlow(ChannelFlow $frame)
570		{
571	1	$this->send(new ChannelFlowOk($this->id, $frame->isActive()));
572
573	1	$this->status = $frame->isActive() ? self::STATUS_READY : self::STATUS_INACTIVE;
574	1	}
575
576		/**
577		* @param ChannelClose $frame
578		*
579		* @throws AMQPException
580		*/
581	3	private function onChannelClose(ChannelClose $frame)
582		{
583	3	$this->send(new ChannelCloseOk($this->id));
584
585	3	$this->status = self::STATUS_CLOSED;
586
587	3	throw AMQPException::make($frame->getReplyText(), $frame->getReplyCode());
588		}
589
590		/**
591		* @return Header
592		*/
593	15	private function readHeader()
594		{
595	15	return $this->wait(Header::class);
596		}
597
598		/**
599		* @param int $size
600		*
601		* @return string
602		*/
603	15	private function readContent($size)
604		{
605	15	$content = '';
606
607	15	while ($size > strlen($content)) {
608	12	$content .= $this->wait(Content::class)
609	12	->getData();
610	12	}
611
612	15	return $content;
613		}
614		}
615

skolodyazhnyy / butter-amqplib

Push — master ( 2528a8...9eba40 )

Channel::readHeader() A

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