AmqpTerminal::publish() - Code Metrics - SmartGecko/GovernorFramework - Measure and Improve Code Quality continuously with Scrutinizer

AmqpTerminal::publish() F
last analyzed 2015-11-28 20:33 UTC

↳ Parent: AmqpTerminal

Complexity

Conditions	11
Paths	409

Size

Total Lines	49
Code Lines	30

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	31
CRAP Score	12.044

Importance

Changes	8
Bugs	3	Features	0

Metric	Value
c	8
b	3
f	0
dl	0
loc	49
ccs	31
cts	39
cp	0.7949
rs	3.7726
cc	11
eloc	30
nc	409
nop	1
crap	12.044

How to fix Complexity

<?php

/*
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * The software is based on the Axon Framework project which is
 * licensed under the Apache 2.0 license. For more information on the Axon Framework
 * see <http://www.axonframework.org/>.
 * 
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the MIT license. For more information, see
 * <http://www.governor-framework.org/>.
 */

namespace Governor\Framework\EventHandling\Amqp;

use Governor\Framework\Common\Logging\NullLogger;
use Governor\Framework\EventHandling\TerminalInterface;
use PhpAmqpLib\Connection\AMQPConnection;
use PhpAmqpLib\Channel\AMQPChannel;
use PhpAmqpLib\Message\AMQPMessage as RawMessage;
use Psr\Log\LoggerAwareInterface;
use Psr\Log\LoggerInterface;
use Governor\Framework\Serializer\SerializerInterface;
use Governor\Framework\UnitOfWork\CurrentUnitOfWork;

/**
 * Implementation of the {@see TerminalInterface} supporting the AMQP protocol.
 *
 * @author    "David Kalosi" <[email protected]>
 * @license   <a href="http://www.opensource.org/licenses/mit-license.php">MIT License</a>
 */
class AmqpTerminal implements TerminalInterface,  LoggerAwareInterface

{

    const DEFAULT_EXCHANGE_NAME = "Governor.EventBus";

    /**
     * @var LoggerInterface
     */
    private $logger;

    /**
     * @var AMQPConnection
     */
    private $connection;

    /**
     * @var string
     */
    private $exchangeName = self::DEFAULT_EXCHANGE_NAME;

    /**
     * @var boolean
     */
    private $isTransactional = false;

    /**
     * @var boolean
     */
    private $isDurable = true;
    //  private ListenerContainerLifecycleManager listenerContainerLifecycleManager;

    /**
     * @var AMQPMessageConverterInterface
     */
    private $messageConverter;

    /**
     * @var SerializerInterface
     */
    private $serializer;

    /**
     * @var RoutingKeyResolverInterface
     */
    private $routingKeyResolver;

    /**
     * @var boolean
     */
    private $waitForAck;

    /**
     * @var integer
     */
    private $publisherAckTimeout = 0;

    public function __construct(
        SerializerInterface $serializer,
        AmqpMessageConverterInterface $messageConverter = null
    ) {
        $this->serializer = $serializer;
        $this->logger = new NullLogger();
        $this->routingKeyResolver = new NamespaceRoutingKeyResolver();
        $this->messageConverter = null === $messageConverter ? new DefaultAmqpMessageConverter(
            $this->serializer,
            $this->routingKeyResolver, $this->isDurable
        ) : $messageConverter;
    }

    private function tryClose(AMQPChannel $channel)
    {
        try {
            $channel->close();
        } catch (\Exception $ex) {
            $this->logger->info("Unable to close channel. It might already be closed.");
        }
    }

    /**
     * Does the actual publishing of the given <code>body</code> on the given <code>channel</code>. This method can be
     * overridden to change the properties used to send a message.
     *
     * @param AMQPChannel $channel The channel to dispatch the message on
     * @param AmqpMessage $amqpMessage The AMQPMessage describing the characteristics of the message to publish
     */
    protected function doSendMessage(
        AMQPChannel $channel,
        AmqpMessage $amqpMessage
    ) {
        $rawMessage = new RawMessage(
            $amqpMessage->getBody(),
            $amqpMessage->getProperties()
        );

        $this->logger->debug(
            "Publishing message to {exchange} with routing key {key}",
            array(
                'exchange' => $this->exchangeName,
                'key' => $amqpMessage->getRoutingKey()
            )
        );

        $channel->basic_publish(
            $rawMessage,
            $this->exchangeName,
            $amqpMessage->getRoutingKey(),
            $amqpMessage->isMandatory(),
            $amqpMessage->isImmediate()
        );
    }

    private function tryRollback(AMQPChannel $channel)
    {
        try {
            $channel->tx_rollback();
        } catch (\Exception $ex) {
            $this->logger->debug("Unable to rollback. The underlying channel might already be closed.");
        }
    }

    /**
     * Sets the Connection providing the Channels to send messages on.
     * <p/>
     *
     * @param AMQPConnection $connection The connection to set
     */
    public function setConnection(AMQPConnection $connection)
    {
        $this->connection = $connection;
    }

    /**
     * Whether this Terminal should dispatch its Events in a transaction or not. Defaults to <code>false</code>.
     * <p/>
     * If a delegate Terminal  is configured, the transaction will be committed <em>after</em> the delegate has
     * dispatched the events.
     * <p/>
     * Transactional behavior cannot be enabled if {@link #setWaitForPublisherAck(boolean)} has been set to
     * <code>true</code>.
     *
     * @param boolean $transactional whether dispatching should be transactional or not
     */
    public function setTransactional($transactional)
    {
        if (!$this->waitForAck || !$transactional) {
            $this->isTransactional = $transactional;
        } else {
            throw new \LogicException("Cannot set transactional behavior when 'waitForServerAck' is enabled.");
        }
    }

    /**
     * Enables or diables the RabbitMQ specific publisher acknowledgements (confirms). When confirms are enabled, the
     * terminal will wait until the server has acknowledged the reception (or fsync to disk on persistent messages) of
     * all published messages.
     * <p/>
     * Server ACKS cannot be enabled when transactions are enabled.
     * <p/>
     * See <a href="http://www.rabbitmq.com/confirms.html">RabbitMQ Documentation</a> for more information about
     * publisher acknowledgements.
     *
     * @param boolean $waitForPublisherAck whether or not to enab;e server acknowledgements (confirms)
     */
    public function setWaitForPublisherAck($waitForPublisherAck)
    {
        if (!$waitForPublisherAck || !$this->isTransactional) {
            $this->waitForAck = $waitForPublisherAck;
        } else {
            throw new \LogicException("Cannot set 'waitForPublisherAck' when using transactions.");
        }
    }

    /**
     * Sets the maximum amount of time (in milliseconds) the publisher may wait for the acknowledgement of published
     * messages. If not all messages have been acknowledged withing this time, the publication will throw an
     * EventPublicationFailedException.
     * <p/>
     * This setting is only used when {@link #setWaitForPublisherAck(boolean)} is set to <code>true</code>.
     *
     * @param integer $publisherAckTimeout The number of milliseconds to wait for confirms, or 0 to wait indefinitely.
     */
    public function setPublisherAckTimeout($publisherAckTimeout)
    {
        $this->publisherAckTimeout = $publisherAckTimeout;
    }

    /*
     * Sets the Message Converter that creates AMQP Messages from Event Messages and vice versa. Setting this property
     * will ignore the "durable", "serializer" and "routingKeyResolver" properties, which just act as short hands to
     * create a DefaultAMQPMessageConverter instance.
     * <p/>
     * Defaults to a DefaultAMQPMessageConverter.
     *
     * @param messageConverter The message converter to convert AMQP Messages to Event Messages and vice versa.
     */
    //  public void setMessageConverter(AMQPMessageConverter messageConverter) {
    //      this.messageConverter = messageConverter;
    //  }

    /**
     * Whether or not messages should be marked as "durable" when sending them out. Durable messages suffer from a
     * performance penalty, but will survive a reboot of the Message broker that stores them.
     * <p/>
     * By default, messages are durable.
     * <p/>
     * Note that this setting is ignored if a {@link
     * #setMessageConverter(org.axonframework.eventhandling.amqp.AMQPMessageConverter) MessageConverter} is provided.
     * In that case, the message converter must add the properties to reflect the required durability setting.
     *
     * @param boolean $durable whether or not messages should be durable
     */
    public function setDurable($durable)
    {
        $this->isDurable = $durable;
    }

    /**
     * Sets the name of the exchange to dispatch published messages to. Defaults to "{@value #DEFAULT_EXCHANGE_NAME}".
     *
     * @param string $exchangeName the name of the exchange to dispatch messages to
     */
    public function setExchangeName($exchangeName)
    {
        $this->exchangeName = $exchangeName;
    }

    public function publish(array $events)
    {
        if (null === $this->connection) {
            throw new \RuntimeException("The AMQPTerminal has no connection configured.");
        }

        $channel = $this->connection->channel();

        if ($this->isTransactional) {
            $channel->tx_select();
        }

        try {
            if ($this->waitForAck) {
                $channel->confirm_select();
            }

            foreach ($events as $event) {
                $amqpMessage = $this->messageConverter->createAmqpMessage($event);
                $this->doSendMessage($channel, $amqpMessage);
            }

            if (CurrentUnitOfWork::isStarted()) {
                CurrentUnitOfWork::get()->registerListener(
                    new ChannelTransactionUnitOfWorkListener(
                        $this->logger,
                        $channel, $this
                    )
                );
            } elseif ($this->isTransactional) {
                $channel->tx_commit();
            } elseif ($this->waitForAck) {
                $channel->wait_for_pending_acks($this->publisherAckTimeout);
            }
        } catch (\Exception $ex) {
            if ($this->isTransactional) {
                $this->tryRollback($channel);
            }

            throw new EventPublicationFailedException(
                "Failed to dispatch Events to the Message Broker.",
                0, $ex
            );
        } finally {
            if (!CurrentUnitOfWork::isStarted()) {
                $this->tryClose($channel);
            }
        }
    }

    /**
     * @param LoggerInterface $logger
     * @return null
     */
    public function setLogger(LoggerInterface $logger)
    {
        $this->logger = $logger;
    }

    /**
     * Sets the RoutingKeyResolver that provides the Routing Key for each message to dispatch.
     *
     * @param RoutingKeyResolverInterface $routingKeyResolver the RoutingKeyResolver to use
     */
    public function setRoutingKeyResolver(RoutingKeyResolverInterface $routingKeyResolver)
    {
        $this->routingKeyResolver = $routingKeyResolver;
    }

}


1		<?php
2
3		/*
4		* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
5		* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
6		* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
7		* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
8		* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
9		* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
10		* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
11		* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
12		* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
13		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
14		* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
15		*
16		* The software is based on the Axon Framework project which is
17		* licensed under the Apache 2.0 license. For more information on the Axon Framework
18		* see <http://www.axonframework.org/>.
19		*
20		* This software consists of voluntary contributions made by many individuals
21		* and is licensed under the MIT license. For more information, see
22		* <http://www.governor-framework.org/>.
23		*/
24
25		namespace Governor\Framework\EventHandling\Amqp;
26
27		use Governor\Framework\Common\Logging\NullLogger;
28		use Governor\Framework\EventHandling\TerminalInterface;
29		use PhpAmqpLib\Connection\AMQPConnection;
30		use PhpAmqpLib\Channel\AMQPChannel;
31		use PhpAmqpLib\Message\AMQPMessage as RawMessage;
32		use Psr\Log\LoggerAwareInterface;
33		use Psr\Log\LoggerInterface;
34		use Governor\Framework\Serializer\SerializerInterface;
35		use Governor\Framework\UnitOfWork\CurrentUnitOfWork;
36
37		/**
38		* Implementation of the {@see TerminalInterface} supporting the AMQP protocol.
39		*
40		* @author "David Kalosi" <[email protected]>
41		* @license <a href="http://www.opensource.org/licenses/mit-license.php">MIT License</a>
42		*/
43		class AmqpTerminal implements TerminalInterface, LoggerAwareInterface
		0 ignored issues – show Coding Style introduced 2015-11-28 13:13 UTC by Report Bug Copy Issue Report Expected 1 space before "LoggerAwareInterface"; 2 found Loading history...
44		{
45
46		const DEFAULT_EXCHANGE_NAME = "Governor.EventBus";
47
48		/**
49		* @var LoggerInterface
50		*/
51		private $logger;
52
53		/**
54		* @var AMQPConnection
55		*/
56		private $connection;
57
58		/**
59		* @var string
60		*/
61		private $exchangeName = self::DEFAULT_EXCHANGE_NAME;
62
63		/**
64		* @var boolean
65		*/
66		private $isTransactional = false;
67
68		/**
69		* @var boolean
70		*/
71		private $isDurable = true;
72		// private ListenerContainerLifecycleManager listenerContainerLifecycleManager;
73
74		/**
75		* @var AMQPMessageConverterInterface
76		*/
77		private $messageConverter;
78
79		/**
80		* @var SerializerInterface
81		*/
82		private $serializer;
83
84		/**
85		* @var RoutingKeyResolverInterface
86		*/
87		private $routingKeyResolver;
88
89		/**
90		* @var boolean
91		*/
92		private $waitForAck;
93
94		/**
95		* @var integer
96		*/
97		private $publisherAckTimeout = 0;
98
99	8	public function __construct(
100		SerializerInterface $serializer,
101		AmqpMessageConverterInterface $messageConverter = null
102		) {
103	8	$this->serializer = $serializer;
104	8	$this->logger = new NullLogger();
105	8	$this->routingKeyResolver = new NamespaceRoutingKeyResolver();
106	8	$this->messageConverter = null === $messageConverter ? new DefaultAmqpMessageConverter(
107	8	$this->serializer,
108	8	$this->routingKeyResolver, $this->isDurable
109	8	) : $messageConverter;
110	8	}
111
112	5	private function tryClose(AMQPChannel $channel)
113		{
114		try {
115	5	$channel->close();
116	5	} catch (\Exception $ex) {
117		$this->logger->info("Unable to close channel. It might already be closed.");
118		}
119	5	}
120
121		/**
122		* Does the actual publishing of the given <code>body</code> on the given <code>channel</code>. This method can be
123		* overridden to change the properties used to send a message.
124		*
125		* @param AMQPChannel $channel The channel to dispatch the message on
126		* @param AmqpMessage $amqpMessage The AMQPMessage describing the characteristics of the message to publish
127		*/
128	6	protected function doSendMessage(
129		AMQPChannel $channel,
130		AmqpMessage $amqpMessage
131		) {
132	6	$rawMessage = new RawMessage(
133	6	$amqpMessage->getBody(),
134	6	$amqpMessage->getProperties()
135	6	);
136
137	6	$this->logger->debug(
138	6	"Publishing message to {exchange} with routing key {key}",
139		array(
140	6	'exchange' => $this->exchangeName,
141	6	'key' => $amqpMessage->getRoutingKey()
142	6	)
143	6	);
144
145	6	$channel->basic_publish(
146	6	$rawMessage,
147	6	$this->exchangeName,
148	6	$amqpMessage->getRoutingKey(),
149	6	$amqpMessage->isMandatory(),
150	6	$amqpMessage->isImmediate()
151	6	);
152	6	}
153
154		private function tryRollback(AMQPChannel $channel)
155		{
156		try {
157		$channel->tx_rollback();
158		} catch (\Exception $ex) {
159		$this->logger->debug("Unable to rollback. The underlying channel might already be closed.");
160		}
161		}
162
163		/**
164		* Sets the Connection providing the Channels to send messages on.
165		* <p/>
166		*
167		* @param AMQPConnection $connection The connection to set
168		*/
169	8	public function setConnection(AMQPConnection $connection)
170		{
171	8	$this->connection = $connection;
172	8	}
173
174		/**
175		* Whether this Terminal should dispatch its Events in a transaction or not. Defaults to <code>false</code>.
176		* <p/>
177		* If a delegate Terminal is configured, the transaction will be committed <em>after</em> the delegate has
178		* dispatched the events.
179		* <p/>
180		* Transactional behavior cannot be enabled if {@link #setWaitForPublisherAck(boolean)} has been set to
181		* <code>true</code>.
182		*
183		* @param boolean $transactional whether dispatching should be transactional or not
184		*/
185	8	public function setTransactional($transactional)
186		{
187	8	if (!$this->waitForAck \|\| !$transactional) {
188	8	$this->isTransactional = $transactional;
189	8	} else {
190	1	throw new \LogicException("Cannot set transactional behavior when 'waitForServerAck' is enabled.");
191		}
192	8	}
193
194		/**
195		* Enables or diables the RabbitMQ specific publisher acknowledgements (confirms). When confirms are enabled, the
196		* terminal will wait until the server has acknowledged the reception (or fsync to disk on persistent messages) of
197		* all published messages.
198		* <p/>
199		* Server ACKS cannot be enabled when transactions are enabled.
200		* <p/>
201		* See <a href="http://www.rabbitmq.com/confirms.html">RabbitMQ Documentation</a> for more information about
202		* publisher acknowledgements.
203		*
204		* @param boolean $waitForPublisherAck whether or not to enab;e server acknowledgements (confirms)
205		*/
206	4	public function setWaitForPublisherAck($waitForPublisherAck)
207		{
208	4	if (!$waitForPublisherAck \|\| !$this->isTransactional) {
209	3	$this->waitForAck = $waitForPublisherAck;
210	3	} else {
211	1	throw new \LogicException("Cannot set 'waitForPublisherAck' when using transactions.");
212		}
213	3	}
214
215		/**
216		* Sets the maximum amount of time (in milliseconds) the publisher may wait for the acknowledgement of published
217		* messages. If not all messages have been acknowledged withing this time, the publication will throw an
218		* EventPublicationFailedException.
219		* <p/>
220		* This setting is only used when {@link #setWaitForPublisherAck(boolean)} is set to <code>true</code>.
221		*
222		* @param integer $publisherAckTimeout The number of milliseconds to wait for confirms, or 0 to wait indefinitely.
223		*/
224	1	public function setPublisherAckTimeout($publisherAckTimeout)
225		{
226	1	$this->publisherAckTimeout = $publisherAckTimeout;
227	1	}
228
229		/*
230		* Sets the Message Converter that creates AMQP Messages from Event Messages and vice versa. Setting this property
231		* will ignore the "durable", "serializer" and "routingKeyResolver" properties, which just act as short hands to
232		* create a DefaultAMQPMessageConverter instance.
233		* <p/>
234		* Defaults to a DefaultAMQPMessageConverter.
235		*
236		* @param messageConverter The message converter to convert AMQP Messages to Event Messages and vice versa.
237		*/
238		// public void setMessageConverter(AMQPMessageConverter messageConverter) {
239		// this.messageConverter = messageConverter;
240		// }
241
242		/**
243		* Whether or not messages should be marked as "durable" when sending them out. Durable messages suffer from a
244		* performance penalty, but will survive a reboot of the Message broker that stores them.
245		* <p/>
246		* By default, messages are durable.
247		* <p/>
248		* Note that this setting is ignored if a {@link
249		* #setMessageConverter(org.axonframework.eventhandling.amqp.AMQPMessageConverter) MessageConverter} is provided.
250		* In that case, the message converter must add the properties to reflect the required durability setting.
251		*
252		* @param boolean $durable whether or not messages should be durable
253		*/
254		public function setDurable($durable)
255		{
256		$this->isDurable = $durable;
257		}
258
259		/**
260		* Sets the name of the exchange to dispatch published messages to. Defaults to "{@value #DEFAULT_EXCHANGE_NAME}".
261		*
262		* @param string $exchangeName the name of the exchange to dispatch messages to
263		*/
264	8	public function setExchangeName($exchangeName)
265		{
266	8	$this->exchangeName = $exchangeName;
267	8	}
268
269	6	public function publish(array $events)
270		{
271	6	if (null === $this->connection) {
272		throw new \RuntimeException("The AMQPTerminal has no connection configured.");
273		}
274
275	6	$channel = $this->connection->channel();
276
277	6	if ($this->isTransactional) {
278	4	$channel->tx_select();
279	4	}
280
281		try {
282	6	if ($this->waitForAck) {
283	2	$channel->confirm_select();
284	2	}
285
286	6	foreach ($events as $event) {
287	6	$amqpMessage = $this->messageConverter->createAmqpMessage($event);
288	6	$this->doSendMessage($channel, $amqpMessage);
289	6	}
290
291	6	if (CurrentUnitOfWork::isStarted()) {
292	4	CurrentUnitOfWork::get()->registerListener(
293	4	new ChannelTransactionUnitOfWorkListener(
294	4	$this->logger,
295	4	$channel, $this
296	4	)
297	4	);
298	6	} elseif ($this->isTransactional) {
299	1	$channel->tx_commit();
300	2	} elseif ($this->waitForAck) {
301	1	$channel->wait_for_pending_acks($this->publisherAckTimeout);
302	1	}
303	6	} catch (\Exception $ex) {
304		if ($this->isTransactional) {
305		$this->tryRollback($channel);
306		}
307
308		throw new EventPublicationFailedException(
309		"Failed to dispatch Events to the Message Broker.",
310		0, $ex
311		);
312	6	} finally {
313	6	if (!CurrentUnitOfWork::isStarted()) {
314	2	$this->tryClose($channel);
315	2	}
316		}
317	6	}
318
319		/**
320		* @param LoggerInterface $logger
321		* @return null
322		*/
323	8	public function setLogger(LoggerInterface $logger)
324		{
325	8	$this->logger = $logger;
326	8	}
327
328		/**
329		* Sets the RoutingKeyResolver that provides the Routing Key for each message to dispatch.
330		*
331		* @param RoutingKeyResolverInterface $routingKeyResolver the RoutingKeyResolver to use
332		*/
333		public function setRoutingKeyResolver(RoutingKeyResolverInterface $routingKeyResolver)
334		{
335		$this->routingKeyResolver = $routingKeyResolver;
336		}
337
338		}
339

SmartGecko / GovernorFramework

AmqpTerminal::publish() F last analyzed 2015-11-28 20:33 UTC

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AmqpTerminal::publish() F
last analyzed 2015-11-28 20:33 UTC