FeedIo::readAsync() - Code Metrics - Inspection of "Merge pull request #150 from alexdebril/issue/127" - alexdebril/feed-io - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 471a2c...9baf90 )

by Alex

created 2017-12-07 09:16 UTC

FeedIo::readAsync() A

↳ Parent: FeedIo

Complexity

Conditions	1
Paths	1

Size

Total Lines	6
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	6
ccs	0
cts	4
cp	0
rs	9.4285
c	0
b	0
f	0
cc	1
eloc	3
nc	1
nop	3
crap	2

<?php declare(strict_types=1);
/*
 * This file is part of the feed-io package.
 *
 * (c) Alexandre Debril <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace FeedIo;

use FeedIo\Filter\ModifiedSince;
use FeedIo\Reader\Result;
use FeedIo\Reader\FixerSet;
use FeedIo\Reader\FixerAbstract;
use FeedIo\Rule\DateTimeBuilder;
use FeedIo\Adapter\ClientInterface;
use FeedIo\Standard\Loader;
use FeedIo\Async\Reader as AsyncReader;
use FeedIo\Async\CallbackInterface;
use FeedIo\FeedInterface;
use Psr\Log\LoggerInterface;
use FeedIo\Http\ResponseBuilder;
use Psr\Http\Message\ResponseInterface;

/**
 * This class acts as a facade. It provides methods to access feed-io main features
 *
 * <code>
 *   // $client is a \FeedIo\Adapter\ClientInterface instance, $logger a \Psr\Log\LoggerInterface
 *   $feedIo = new FeedIo($client, $logger);
 *
 *   // read a feed. Output is a Result instance
 *   $result = $feedIo->read('http://somefeed.org/feed.rss');
 *
 *   // use the feed
 *   $feed = $result->getFeed();
 *   echo $feed->getTitle();
 *
 *   // and its items
 *   foreach ( $feed as $item ) {
 *       echo $item->getTitle();
 *       echo $item->getDescription();
 *   }
 *
 * </code>
 *
 * <code>
 *   // build the feed to publish
 *   $feed = new \FeedIo\Feed;
 *   $feed->setTitle('title');
 *   // ...
 *
 *   // add items to it
 *   $item = new \FeedIo\Feed\Item
 *   $item->setTitle('my great post');
 *
 *   // want to publish a media ? no problem
 *   $media = new \FeedIo\Feed\Item\Media
 *   $media->setUrl('http://yourdomain.tld/medias/some-podcast.mp3');
 *   $media->setType('audio/mpeg');
 *
 *   // add it to the item
 *   $item->addMedia($media);
 *
 *   // add the item to the feed (almost there)
 *   $feed->add($item);
 *
 *   // format it in atom
 *   $feedIo->toAtom($feed);
 * </code>
 *
 */
class FeedIo
{

    /**
     * @var \FeedIo\Reader
     */
    protected $reader;

    /**
     * @var \FeedIo\Rule\DateTimeBuilder
     */
    protected $dateTimeBuilder;

    /**
     * @var \Psr\Log\LoggerInterface
     */
    protected $logger;

    /**
     * @var array
     */
    protected $standards;

    /**
     * @var \FeedIo\Reader\FixerSet
     */
    protected $fixerSet;

    /**
     * @param \FeedIo\Adapter\ClientInterface $client
     * @param \Psr\Log\LoggerInterface        $logger
     */
    public function __construct(ClientInterface $client, LoggerInterface $logger)
    {
        $this->logger = $logger;
        $this->dateTimeBuilder = new DateTimeBuilder($logger);
        $this->setReader(new Reader($client, $logger));
        $this->loadCommonStandards();
        $this->loadFixerSet();
    }

    /**
     * Loads main standards (RSS, RDF, Atom) in current object's attributes
     *
     * @return FeedIo
     */
    protected function loadCommonStandards() : FeedIo
    {
        $standards = $this->getCommonStandards();
        foreach ($standards as $name => $standard) {
            $this->addStandard($name, $standard);
        }

        return $this;
    }

    /**
     * adds a filter to the reader
     *
     * @param \FeedIo\FilterInterface $filter
     * @return FeedIo
     */
    public function addFilter(FilterInterface $filter) : FeedIo
    {
        $this->getReader()->addFilter($filter);

        return $this;
    }

    /**
     * Returns main standards
     *
     * @return array
     */
    public function getCommonStandards() : array
    {
        $loader = new Loader();

        return $loader->getCommonStandards($this->getDateTimeBuilder());
    }

    /**
     * @param  string                   $name
     * @param  \FeedIo\StandardAbstract $standard
     * @return FeedIo
     */
    public function addStandard(string $name, StandardAbstract $standard) : FeedIo
    {
        $name = strtolower($name);
        $this->standards[$name] = $standard;
        $parser = $this->newParser($standard->getSyntaxFormat(), $standard);
        $this->reader->addParser($parser);

        return $this;
    }

    /**
     * @param string $format
     * @param StandardAbstract $standard
     * @return ParserAbstract
     */
    public function newParser(string $format, StandardAbstract $standard) : ParserAbstract
    {
        $reflection = new \ReflectionClass("FeedIo\\Parser\\{$format}Parser");

        if (! $reflection->isSubclassOf('FeedIo\ParserAbstract')) {
            throw new \InvalidArgumentException();
        }

        return $reflection->newInstanceArgs([$standard, $this->logger]);
    }

    /**
     * @return \FeedIo\Reader\FixerSet
     */
    public function getFixerSet() : FixerSet
    {
        return $this->fixerSet;
    }

    /**
     * @return FeedIo
     */
    protected function loadFixerSet() : FeedIo
    {
        $this->fixerSet = new FixerSet();
        $fixers = $this->getBaseFixers();

        foreach ($fixers as $fixer) {
            $this->addFixer($fixer);
        }

        return $this;
    }

    /**
     * @param  FixerAbstract $fixer
     * @return FeedIo
     */
    public function addFixer(FixerAbstract $fixer) : FeedIo
    {
        $fixer->setLogger($this->logger);
        $this->fixerSet->add($fixer);

        return $this;
    }

    /**
     * @return array
     */
    public function getBaseFixers() : array
    {
        return array(
            new Reader\Fixer\LastModified(),
            new Reader\Fixer\PublicId(),
        );
    }

    /**
     * @param array $formats
     * @return FeedIo
     */
    public function addDateFormats(array $formats) : FeedIo
    {
        foreach ($formats as $format) {
            $this->getDateTimeBuilder()->addDateFormat($format);
        }

        return $this;
    }

    /**
     * @return \FeedIo\Rule\DateTimeBuilder
     */
    public function getDateTimeBuilder() : DateTimeBuilder
    {
        return $this->dateTimeBuilder;
    }

    /**
     * @return \FeedIo\Reader
     */
    public function getReader() : Reader
    {
        return $this->reader;
    }

    /**
     * @param \FeedIo\Reader $reader
     * @return FeedIo
     */
    public function setReader(Reader $reader) : FeedIo
    {
        $this->reader = $reader;

        return $this;
    }

    /**
     * @param iterable $requests
     * @param CallbackInterface $callback
     * @param string $feedClass
     */
    public function readAsync(iterable $requests, CallbackInterface $callback, string $feedClass = '\FeedIo\Feed') : void
    {
        $reader = new AsyncReader($this->reader, $callback, $feedClass);

        $reader->process($requests);
    }

    /**
     * @param  string                $url
     * @param  FeedInterface         $feed
     * @param  \DateTime             $modifiedSince
     * @return \FeedIo\Reader\Result
     */
    public function read(string $url, FeedInterface $feed = null, \DateTime $modifiedSince = null) : Result
    {
        if (is_null($feed)) {
            $feed = new Feed();
        }

        if ($modifiedSince instanceof \DateTime) {
            $this->addFilter(new ModifiedSince($modifiedSince));
        }

        $this->logAction($feed, "read access : $url into a feed instance");
        $result = $this->reader->read($url, $feed, $modifiedSince);

        $this->fixerSet->correct($result->getFeed());

        return $result;
    }

    /**
     * @param  string                $url
     * @param  \DateTime             $modifiedSince
     * @return \FeedIo\Reader\Result
     */
    public function readSince(string $url, \DateTime $modifiedSince) : Result
    {
        return $this->read($url, new Feed(), $modifiedSince);
    }

    /**
     * @return FeedIo
     */
    public function resetFilters() : FeedIo
    {
        $this->getReader()->resetFilters();

        return $this;
    }

    /**
     * Get a PSR-7 compliant response for the given feed
     *
     * @param \FeedIo\FeedInterface $feed
     * @param string $standard
     * @param int $maxAge
     * @param bool $public
     * @return ResponseInterface
     */
    public function getPsrResponse(FeedInterface $feed, string $standard, int $maxAge = 600, bool $public = true) : ResponseInterface
    {
        $this->logAction($feed, "creating a PSR 7 Response in $standard format");

        $formatter = $this->getStandard($standard)->getFormatter();
        $responseBuilder = new ResponseBuilder($maxAge, $public);

        return $responseBuilder->createResponse($standard, $formatter, $feed);
    }

    /**
     * @param  FeedInterface $feed
     * @param  string        $standard Standard's name
     * @return string
     */
    public function format(FeedInterface $feed, string $standard) : string
    {
        $this->logAction($feed, "formatting a feed in $standard format");

        $formatter = $this->getStandard($standard)->getFormatter();

        return $formatter->toString($feed);
    }

    /**
     * @param  \FeedIo\FeedInterface $feed
     * @return string
     */
    public function toRss(FeedInterface $feed) : string
    {
        return $this->format($feed, 'rss');
    }

    /**
     * @param  \FeedIo\FeedInterface $feed
     * @return string
     */
    public function toAtom(FeedInterface $feed) : string
    {
        return $this->format($feed, 'atom');
    }

    /**
     * @param  \FeedIo\FeedInterface $feed
     * @return string
     */
    public function toJson(FeedInterface $feed) : string
    {
        return $this->format($feed, 'json');
    }


    /**
     * @param  string                   $name
     * @return \FeedIo\StandardAbstract
     * @throws \OutOfBoundsException
     */
    public function getStandard(string $name) : StandardAbstract
    {
        $name = strtolower($name);
        if (array_key_exists($name, $this->standards)) {
            return $this->standards[$name];
        }

        throw new \OutOfBoundsException("no standard found for $name");
    }

    /**
     * @param  \FeedIo\FeedInterface $feed
     * @param  string                $message
     * @return FeedIo
     */
    protected function logAction(FeedInterface $feed, string $message) : FeedIo
    {
        $class = get_class($feed);
        $this->logger->debug("$message (feed class : $class)");

        return $this;
    }
}


1		<?php declare(strict_types=1);
2		/*
3		* This file is part of the feed-io package.
4		*
5		* (c) Alexandre Debril <[email protected]>
6		*
7		* For the full copyright and license information, please view the LICENSE
8		* file that was distributed with this source code.
9		*/
10
11		namespace FeedIo;
12
13		use FeedIo\Filter\ModifiedSince;
14		use FeedIo\Reader\Result;
15		use FeedIo\Reader\FixerSet;
16		use FeedIo\Reader\FixerAbstract;
17		use FeedIo\Rule\DateTimeBuilder;
18		use FeedIo\Adapter\ClientInterface;
19		use FeedIo\Standard\Loader;
20		use FeedIo\Async\Reader as AsyncReader;
21		use FeedIo\Async\CallbackInterface;
22		use FeedIo\FeedInterface;
23		use Psr\Log\LoggerInterface;
24		use FeedIo\Http\ResponseBuilder;
25		use Psr\Http\Message\ResponseInterface;
26
27		/**
28		* This class acts as a facade. It provides methods to access feed-io main features
29		*
30		* <code>
31		* // $client is a \FeedIo\Adapter\ClientInterface instance, $logger a \Psr\Log\LoggerInterface
32		* $feedIo = new FeedIo($client, $logger);
33		*
34		* // read a feed. Output is a Result instance
35		* $result = $feedIo->read('http://somefeed.org/feed.rss');
36		*
37		* // use the feed
38		* $feed = $result->getFeed();
39		* echo $feed->getTitle();
40		*
41		* // and its items
42		* foreach ( $feed as $item ) {
43		* echo $item->getTitle();
44		* echo $item->getDescription();
45		* }
46		*
47		* </code>
48		*
49		* <code>
50		* // build the feed to publish
51		* $feed = new \FeedIo\Feed;
52		* $feed->setTitle('title');
53		* // ...
54		*
55		* // add items to it
56		* $item = new \FeedIo\Feed\Item
57		* $item->setTitle('my great post');
58		*
59		* // want to publish a media ? no problem
60		* $media = new \FeedIo\Feed\Item\Media
61		* $media->setUrl('http://yourdomain.tld/medias/some-podcast.mp3');
62		* $media->setType('audio/mpeg');
63		*
64		* // add it to the item
65		* $item->addMedia($media);
66		*
67		* // add the item to the feed (almost there)
68		* $feed->add($item);
69		*
70		* // format it in atom
71		* $feedIo->toAtom($feed);
72		* </code>
73		*
74		*/
75		class FeedIo
76		{
77
78		/**
79		* @var \FeedIo\Reader
80		*/
81		protected $reader;
82
83		/**
84		* @var \FeedIo\Rule\DateTimeBuilder
85		*/
86		protected $dateTimeBuilder;
87
88		/**
89		* @var \Psr\Log\LoggerInterface
90		*/
91		protected $logger;
92
93		/**
94		* @var array
95		*/
96		protected $standards;
97
98		/**
99		* @var \FeedIo\Reader\FixerSet
100		*/
101		protected $fixerSet;
102
103		/**
104		* @param \FeedIo\Adapter\ClientInterface $client
105		* @param \Psr\Log\LoggerInterface $logger
106		*/
107	12	public function __construct(ClientInterface $client, LoggerInterface $logger)
108		{
109	12	$this->logger = $logger;
110	12	$this->dateTimeBuilder = new DateTimeBuilder($logger);
111	12	$this->setReader(new Reader($client, $logger));
112	12	$this->loadCommonStandards();
113	12	$this->loadFixerSet();
114	12	}
115
116		/**
117		* Loads main standards (RSS, RDF, Atom) in current object's attributes
118		*
119		* @return FeedIo
120		*/
121	12	protected function loadCommonStandards() : FeedIo
122		{
123	12	$standards = $this->getCommonStandards();
124	12	foreach ($standards as $name => $standard) {
125	12	$this->addStandard($name, $standard);
126		}
127
128	12	return $this;
129		}
130
131		/**
132		* adds a filter to the reader
133		*
134		* @param \FeedIo\FilterInterface $filter
135		* @return FeedIo
136		*/
137	2	public function addFilter(FilterInterface $filter) : FeedIo
138		{
139	2	$this->getReader()->addFilter($filter);
140
141	2	return $this;
142		}
143
144		/**
145		* Returns main standards
146		*
147		* @return array
148		*/
149	12	public function getCommonStandards() : array
150		{
151	12	$loader = new Loader();
152
153	12	return $loader->getCommonStandards($this->getDateTimeBuilder());
154		}
155
156		/**
157		* @param string $name
158		* @param \FeedIo\StandardAbstract $standard
159		* @return FeedIo
160		*/
161	12	public function addStandard(string $name, StandardAbstract $standard) : FeedIo
162		{
163	12	$name = strtolower($name);
164	12	$this->standards[$name] = $standard;
165	12	$parser = $this->newParser($standard->getSyntaxFormat(), $standard);
166	12	$this->reader->addParser($parser);
167
168	12	return $this;
169		}
170
171		/**
172		* @param string $format
173		* @param StandardAbstract $standard
174		* @return ParserAbstract
175		*/
176	11	public function newParser(string $format, StandardAbstract $standard) : ParserAbstract
177		{
178	11	$reflection = new \ReflectionClass("FeedIo\\Parser\\{$format}Parser");
179
180	11	if (! $reflection->isSubclassOf('FeedIo\ParserAbstract')) {
181		throw new \InvalidArgumentException();
182		}
183
184	11	return $reflection->newInstanceArgs([$standard, $this->logger]);
185		}
186
187		/**
188		* @return \FeedIo\Reader\FixerSet
189		*/
190	1	public function getFixerSet() : FixerSet
191		{
192	1	return $this->fixerSet;
193		}
194
195		/**
196		* @return FeedIo
197		*/
198	11	protected function loadFixerSet() : FeedIo
199		{
200	11	$this->fixerSet = new FixerSet();
201	11	$fixers = $this->getBaseFixers();
202
203	11	foreach ($fixers as $fixer) {
204	11	$this->addFixer($fixer);
205		}
206
207	11	return $this;
208		}
209
210		/**
211		* @param FixerAbstract $fixer
212		* @return FeedIo
213		*/
214	11	public function addFixer(FixerAbstract $fixer) : FeedIo
215		{
216	11	$fixer->setLogger($this->logger);
217	11	$this->fixerSet->add($fixer);
218
219	11	return $this;
220		}
221
222		/**
223		* @return array
224		*/
225	11	public function getBaseFixers() : array
226		{
227		return array(
228	11	new Reader\Fixer\LastModified(),
229	11	new Reader\Fixer\PublicId(),
230		);
231		}
232
233		/**
234		* @param array $formats
235		* @return FeedIo
236		*/
237	1	public function addDateFormats(array $formats) : FeedIo
238		{
239	1	foreach ($formats as $format) {
240	1	$this->getDateTimeBuilder()->addDateFormat($format);
241		}
242
243	1	return $this;
244		}
245
246		/**
247		* @return \FeedIo\Rule\DateTimeBuilder
248		*/
249	12	public function getDateTimeBuilder() : DateTimeBuilder
250		{
251	12	return $this->dateTimeBuilder;
252		}
253
254		/**
255		* @return \FeedIo\Reader
256		*/
257	4	public function getReader() : Reader
258		{
259	4	return $this->reader;
260		}
261
262		/**
263		* @param \FeedIo\Reader $reader
264		* @return FeedIo
265		*/
266	12	public function setReader(Reader $reader) : FeedIo
267		{
268	12	$this->reader = $reader;
269
270	12	return $this;
271		}
272
273		/**
274		* @param iterable $requests
275		* @param CallbackInterface $callback
276		* @param string $feedClass
277		*/
278		public function readAsync(iterable $requests, CallbackInterface $callback, string $feedClass = '\FeedIo\Feed') : void
279		{
280		$reader = new AsyncReader($this->reader, $callback, $feedClass);
281
282		$reader->process($requests);
283		}
284
285		/**
286		* @param string $url
287		* @param FeedInterface $feed
288		* @param \DateTime $modifiedSince
289		* @return \FeedIo\Reader\Result
290		*/
291	2	public function read(string $url, FeedInterface $feed = null, \DateTime $modifiedSince = null) : Result
292		{
293	2	if (is_null($feed)) {
294	1	$feed = new Feed();
295		}
296
297	2	if ($modifiedSince instanceof \DateTime) {
298	1	$this->addFilter(new ModifiedSince($modifiedSince));
299		}
300
301	2	$this->logAction($feed, "read access : $url into a feed instance");
302	2	$result = $this->reader->read($url, $feed, $modifiedSince);
303
304	2	$this->fixerSet->correct($result->getFeed());
305
306	2	return $result;
307		}
308
309		/**
310		* @param string $url
311		* @param \DateTime $modifiedSince
312		* @return \FeedIo\Reader\Result
313		*/
314	1	public function readSince(string $url, \DateTime $modifiedSince) : Result
315		{
316	1	return $this->read($url, new Feed(), $modifiedSince);
317		}
318
319		/**
320		* @return FeedIo
321		*/
322	1	public function resetFilters() : FeedIo
323		{
324	1	$this->getReader()->resetFilters();
325
326	1	return $this;
327		}
328
329		/**
330		* Get a PSR-7 compliant response for the given feed
331		*
332		* @param \FeedIo\FeedInterface $feed
333		* @param string $standard
334		* @param int $maxAge
335		* @param bool $public
336		* @return ResponseInterface
337		*/
338	1	public function getPsrResponse(FeedInterface $feed, string $standard, int $maxAge = 600, bool $public = true) : ResponseInterface
339		{
340	1	$this->logAction($feed, "creating a PSR 7 Response in $standard format");
341
342	1	$formatter = $this->getStandard($standard)->getFormatter();
343	1	$responseBuilder = new ResponseBuilder($maxAge, $public);
344
345	1	return $responseBuilder->createResponse($standard, $formatter, $feed);
346		}
347
348		/**
349		* @param FeedInterface $feed
350		* @param string $standard Standard's name
351		* @return string
352		*/
353	1	public function format(FeedInterface $feed, string $standard) : string
354		{
355	1	$this->logAction($feed, "formatting a feed in $standard format");
356
357	1	$formatter = $this->getStandard($standard)->getFormatter();
358
359	1	return $formatter->toString($feed);
360		}
361
362		/**
363		* @param \FeedIo\FeedInterface $feed
364		* @return string
365		*/
366	1	public function toRss(FeedInterface $feed) : string
367		{
368	1	return $this->format($feed, 'rss');
369		}
370
371		/**
372		* @param \FeedIo\FeedInterface $feed
373		* @return string
374		*/
375	1	public function toAtom(FeedInterface $feed) : string
376		{
377	1	return $this->format($feed, 'atom');
378		}
379
380		/**
381		* @param \FeedIo\FeedInterface $feed
382		* @return string
383		*/
384	1	public function toJson(FeedInterface $feed) : string
385		{
386	1	return $this->format($feed, 'json');
387		}
388
389
390		/**
391		* @param string $name
392		* @return \FeedIo\StandardAbstract
393		* @throws \OutOfBoundsException
394		*/
395	3	public function getStandard(string $name) : StandardAbstract
396		{
397	3	$name = strtolower($name);
398	3	if (array_key_exists($name, $this->standards)) {
399	2	return $this->standards[$name];
400		}
401
402	1	throw new \OutOfBoundsException("no standard found for $name");
403		}
404
405		/**
406		* @param \FeedIo\FeedInterface $feed
407		* @param string $message
408		* @return FeedIo
409		*/
410	3	protected function logAction(FeedInterface $feed, string $message) : FeedIo
411		{
412	3	$class = get_class($feed);
413	3	$this->logger->debug("$message (feed class : $class)");
414
415	3	return $this;
416		}
417		}
418

alexdebril / feed-io

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FeedIo::readAsync() A

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