MusicBrainz - Code Metrics - powered-by-moe/MusicBrainz - Measure and Improve Code Quality continuously with Scrutinizer

MusicBrainz F
last analyzed 2016-10-21 09:13 UTC

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	743
Duplicated Lines	6.19 %

Coupling/Cohesion

Components	1
Dependencies	8

Importance

Changes

Metric	Value
wmc	50
lcom	1
cbo	8
dl	46
loc	743
rs	3.2
c	0
b	0
f	0

22 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	12	3
A	lookup()	0	20	2
B	browse()	0	35	3
A	browseArtist()	8	8	2
A	browseLabel()	8	8	2
A	browseRecording()	8	8	2
B	browseRelease()	0	24	2
A	browseReleaseGroup()	22	22	2
A	search()	0	16	3
A	isValidMBID()	0	4	1
A	isValidEntity()	0	4	1
A	isAuthRequired()	0	12	4
A	validateInclude()	0	10	3
A	validateFilter()	0	10	3
D	getBrowseFilterParams()	0	35	9
A	getHttpOptions()	0	9	1
A	getUserAgent()	0	4	1
A	setUserAgent()	0	8	2
A	getUser()	0	4	1
A	setUser()	0	4	1
A	getPassword()	0	4	1
A	setPassword()	0	4	1

How to fix Duplicated Code Complexity

Duplicated Code

Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.

Common duplication problems, and corresponding solutions are:

If you have the same expression in different places: Extract expression to a method
If you have the same method in different sub-classes: Extract method, and pull up field to the parent class
If you have the same code in unrelated classes: Consider extracting the code to a new class, and injecting that class

Complex Class

Tip: Before tackling complexity, make sure that you eliminate any duplication first. This often can reduce the size of classes significantly.

Complex classes like MusicBrainz often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.

Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.

While breaking up the class, it is a good idea to analyze how other classes use MusicBrainz, and based on these observations, apply Extract Interface, too.

<?php

namespace MusicBrainz;

use MusicBrainz\HttpAdapters\AbstractHttpAdapter;

/**
 * Connect to the MusicBrainz web service
 *
 * http://musicbrainz.org/doc/Development
 *
 * @link http://github.com/mikealmond/musicbrainz
 * @package MusicBrainz
 */
class MusicBrainz
{
    /**
     * @var array
     */
    private static $validIncludes = array(
        'artist'        => array(
            "recordings",
            "releases",
            "release-groups",
            "works",
            "various-artists",
            "discids",
            "media",
            "aliases",
            "tags",
            "user-tags",
            "ratings",
            "user-ratings", // misc
            "artist-rels",
            "label-rels",
            "recording-rels",
            "release-rels",
            "release-group-rels",
            "url-rels",
            "work-rels",
            "annotation"
        ),
        'annotation'    => array(),
        'label'         => array(
            "releases",
            "discids",
            "media",
            "aliases",
            "tags",
            "user-tags",
            "ratings",
            "user-ratings", // misc
            "artist-rels",
            "label-rels",
            "recording-rels",
            "release-rels",
            "release-group-rels",
            "url-rels",
            "work-rels",
            "annotation"
        ),
        'recording'     => array(
            "artists",
            "releases", // sub queries
            "discids",
            "media",
            "artist-credits",
            "tags",
            "user-tags",
            "ratings",
            "user-ratings", // misc
            "artist-rels",
            "label-rels",
            "recording-rels",
            "release-rels",
            "release-group-rels",
            "url-rels",
            "work-rels",
            "annotation",
            "aliases"
        ),
        'release'       => array(
            "artists",
            "labels",
            "recordings",
            "release-groups",
            "media",
            "artist-credits",
            "discids",
            "puids",
            "echoprints",
            "isrcs",
            "artist-rels",
            "label-rels",
            "recording-rels",
            "release-rels",
            "release-group-rels",
            "url-rels",
            "work-rels",
            "recording-level-rels",
            "work-level-rels",
            "annotation",
            "aliases"
        ),
        'release-group' => array(
            "artists",
            "releases",
            "discids",
            "media",
            "artist-credits",
            "tags",
            "user-tags",
            "ratings",
            "user-ratings", // misc
            "artist-rels",
            "label-rels",
            "recording-rels",
            "release-rels",
            "release-group-rels",
            "url-rels",
            "work-rels",
            "annotation",
            "aliases"
        ),
        'work'          => array(
            "artists", // sub queries
            "aliases",
            "tags",
            "user-tags",
            "ratings",
            "user-ratings", // misc
            "artist-rels",
            "label-rels",
            "recording-rels",
            "release-rels",
            "release-group-rels",
            "url-rels",
            "work-rels",
            "annotation"
        ),
        'discid'        => array(
            "artists",
            "labels",
            "recordings",
            "release-groups",
            "media",
            "artist-credits",
            "discids",
            "puids",
            "echoprints",
            "isrcs",
            "artist-rels",
            "label-rels",
            "recording-rels",
            "release-rels",
            "release-group-rels",
            "url-rels",
            "work-rels",
            "recording-level-rels",
            "work-level-rels"
        ),
        'echoprint'     => array(
            "artists",
            "releases"
        ),
        'puid'          => array(
            "artists",
            "releases",
            "puids",
            "echoprints",
            "isrcs"
        ),
        'isrc'          => array(
            "artists",
            "releases",
            "puids",
            "echoprints",
            "isrcs"
        ),
        'iswc'          => array(
            "artists"
        ),
        'collection'    => array(
            'releases'
        )
    );
    /**
     * @var array
     */
    private static $validBrowseIncludes = array(
        'release'       => array(
            "artist-credits",
            "labels",
            "recordings",
            "release-groups",
            "media",
            "discids",
            "artist-rels",
            "label-rels",
            "recording-rels",
            "release-rels",
            "release-group-rels",
            "url-rels",
            "work-rels"
        ),
        'recording'     => array(
            "artist-credits",
            "tags",
            "ratings",
            "user-tags",
            "user-ratings"
        ),
        'label'         => array(
            "aliases",
            "tags",
            "ratings",
            "user-tags",
            "user-ratings"
        ),
        'artist'        => array(
            "aliases",
            "tags",
            "ratings",
            "user-tags",
            "user-ratings"
        ),
        'release-group' => array(
            "artist-credits",
            "tags",
            "ratings",
            "user-tags",
            "user-ratings"
        )
    );
    /**
     * @var array
     */
    private static $validReleaseTypes = array(
        "nat",
        "album",
        "single",
        "ep",
        "compilation",
        "soundtrack",
        "spokenword",
        "interview",
        "audiobook",
        "live",
        "remix",
        "other"
    );
    /**
     * @var array
     */
    private static $validReleaseStatuses = array(
        "official",
        "promotion",
        "bootleg",
        "pseudo-release"
    );
    /**
     * @var string
     */
    private $userAgent = 'MusicBrainz PHP Api/0.2.0';
    /**
     * The username a MusicBrainz user. Used for authentication.
     *
     * @var string
     */
    private $user = NULL;
    /**
     * The password of a MusicBrainz user. Used for authentication.
     *
     * @var string
     */
    private $password = NULL;
    /**
     * The Http adapter used to make requests
     *
     * @var \MusicBrainz\HttpAdapters\AbstractHttpAdapter
     */
    private $adapter;

    /**
     * Initializes the class. You can pass the user’s username and password
     * However, you can modify or add all values later.
     *
     * @param HttpAdapters\AbstractHttpAdapter $adapter The Http adapter used to make requests
     * @param string                           $user
     * @param string                           $password
     */
    public function __construct(AbstractHttpAdapter $adapter, $user = NULL, $password = NULL)
    {
        $this->adapter = $adapter;

        if (NULL !== $user) {
            $this->setUser($user);
        }

        if (NULL !== $password) {
            $this->setPassword($password);
        }
    }

    /**
     * Do a MusicBrainz lookup
     *
     * http://musicbrainz.org/doc/XML_Web_Service
     *
     * @param string $entity
     * @param string $mbid Music Brainz ID
     * @param array  $includes
     *
     * @throws Exception
     * @return array
     */
    public function lookup($entity, $mbid, array $includes = array())
    {

        if (!$this->isValidEntity($entity)) {
            throw new Exception('Invalid entity');
        }

        $this->validateInclude($includes, self::$validIncludes[$entity]);

        $authRequired = $this->isAuthRequired($entity, $includes);

        $params = array(
            'inc' => implode('+', $includes),
            'fmt' => 'json'
        );

        $response = $this->adapter->call($entity . '/' . $mbid, $params, $this->getHttpOptions(), $authRequired);

        return $response;
    }

    /**
     * @param Filters\FilterInterface $filter
     * @param                         $entity
     * @param                         $mbid
     * @param array                   $includes
     * @param int                     $limit
     * @param null                    $offset
     * @param array                   $releaseType
     * @param array                   $releaseStatus
     *
     * @return array
     * @throws Exception
     */
    protected function browse(
        Filters\FilterInterface $filter,
        $entity,
        $mbid,
        array $includes,
        $limit = 25,
        $offset = NULL,
        $releaseType = array(),
        $releaseStatus = array()
    ) {
        if (!$this->isValidMBID($mbid)) {
            throw new Exception('Invalid Music Brainz ID');
        }

        if ($limit > 100) {
            throw new Exception('Limit can only be between 1 and 100');
        }

        $this->validateInclude($includes, self::$validBrowseIncludes[$filter->getEntity()]);

        $authRequired = $this->isAuthRequired($filter->getEntity(), $includes);

        $params = $this->getBrowseFilterParams($filter->getEntity(), $includes, $releaseType, $releaseStatus);
        $params += array(
            $entity  => $mbid,
            'inc'    => implode('+', $includes),
            'limit'  => $limit,
            'offset' => $offset,
            'fmt'    => 'json'
        );

        $response = $this->adapter->call($filter->getEntity() . '/', $params, $this->getHttpOptions(), $authRequired);

        return $response;
    }

    /**
     * @param       $entity
     * @param       $mbid
     * @param array $includes
     * @param int   $limit
     * @param null  $offset
     *
     * @return array
     * @throws Exception
     */
    public function browseArtist($entity, $mbid, array $includes = array(), $limit = 25, $offset = NULL)
    {
        if (!in_array($entity, array('recording', 'release', 'release-group'))) {
            throw new Exception('Invalid browse entity for artist');
        }

        return $this->browse(new Filters\ArtistFilter(array()), $entity, $mbid, $includes, $limit, $offset);
    }

    /**
     * @param       $entity
     * @param       $mbid
     * @param array $includes
     * @param int   $limit
     * @param null  $offset
     *
     * @return array
     * @throws Exception
     */
    public function browseLabel($entity, $mbid, array $includes, $limit = 25, $offset = NULL)
    {
        if (!in_array($entity, array('release'))) {
            throw new Exception('Invalid browse entity for label');
        }

        return $this->browse(new Filters\LabelFilter(array()), $entity, $mbid, $includes, $limit, $offset);
    }

    /**
     * @param       $entity
     * @param       $mbid
     * @param array $includes
     * @param int   $limit
     * @param null  $offset
     *
     * @return array
     * @throws Exception
     */
    public function browseRecording($entity, $mbid, array $includes = array(), $limit = 25, $offset = NULL)
    {
        if (!in_array($entity, array('artist', 'release'))) {
            throw new Exception('Invalid browse entity for recording');
        }

        return $this->browse(new Filters\RecordingFilter(array()), $entity, $mbid, $includes, $limit, $offset);
    }

    /**
     * @param       string $entity
     * @param       string $mbid
     * @param array $includes
     * @param int   $limit
     * @param null  $offset
     * @param array $releaseType
     * @param array $releaseStatus
     *
     * @return array
     * @throws Exception
     */
    public function browseRelease(
        $entity,
        $mbid,
        array $includes = array(),
        $limit = 25,
        $offset = NULL,
        $releaseType = array(),
        $releaseStatus = array()
    ) {
        if (!in_array($entity, array('artist', 'label', 'recording', 'release-group'))) {
            throw new Exception('Invalid browse entity for release');
        }

        return $this->browse(
            new Filters\ReleaseFilter(array()),
            $entity,
            $mbid,
            $includes,
            $limit,
            $offset,
            $releaseType,
            $releaseStatus
        );
    }

    /**
     * @param       $entity
     * @param       $mbid
     * @param int   $limit
     * @param null  $offset
     * @param array $includes
     * @param array $releaseType
     *
     * @return array
     * @throws Exception
     */
    public function browseReleaseGroup(
        $entity,
        $mbid,
        $limit = 25,
        $offset = NULL,
        array $includes,
        $releaseType = array()
    ) {
        if (!in_array($entity, array('artist', 'release'))) {
            throw new Exception('Invalid browse entity for release group');
        }

        return $this->browse(
            new Filters\ReleaseGroupFilter(array()),
            $entity,
            $mbid,
            $includes,
            $limit,
            $offset,
            $releaseType
        );
    }

    /**
     * Performs a query based on the parameters supplied in the Filter object.
     * Returns an array of possible matches with scores, as returned by the
     * musicBrainz web service.
     *
     * Note that these types of queries only return some information, and not all the
     * information available about a particular item is available using this type of query.
     * You will need to get the MusicBrainz id (mbid) and perform a lookup with browse
     * to return complete information about a release. This method returns an array of
     * objects that are possible matches.
     *
     * @param Filters\FilterInterface $filter
     * @param int                     $limit
     * @param null|int                $offset
     *
     * @throws Exception
     * @return array
     */
    public function search(Filters\FilterInterface $filter, $limit = 25, $offset = NULL)
    {
        if (count($filter->createParameters()) < 1) {
            throw new Exception('The artist filter object needs at least 1 argument to create a query.');
        }

        if ($limit > 100) {
            throw new Exception('Limit can only be between 1 and 100');
        }

        $params = $filter->createParameters(array('limit' => $limit, 'offset' => $offset, 'fmt' => 'json'));

        $response = $this->adapter->call($filter->getEntity() . '/', $params, $this->getHttpOptions(), FALSE, TRUE);

        return $filter->parseResponse($response, $this);
    }

    /**
     * @param $mbid
     *
     * @return int
     */
    public function isValidMBID($mbid)
    {
        return preg_match("/^(\{)?[a-f\d]{8}(-[a-f\d]{4}){4}[a-f\d]{8}(?(1)\})$/i", $mbid);
    }

    /**
     * Check the list of allowed entities
     *
     * @param string $entity
     *
     * @return bool
     */
    private function isValidEntity($entity)
    {
        return array_key_exists($entity, self::$validIncludes);
    }

    /**
     * Some calls require authentication
     *
     * @param string $entity
     * @param $includes
     *
     * @return bool
     */
    protected function isAuthRequired($entity, $includes)
    {
        if (in_array('user-tags', $includes) || in_array('user-ratings', $includes)) {
            return TRUE;
        }

        if (substr($entity, 0, strlen('collection')) === 'collection') {
            return TRUE;
        }

        return FALSE;
    }

    /**
     * @param $includes
     * @param $validIncludes
     *
     * @return bool
     * @throws \OutOfBoundsException
     */
    public function validateInclude($includes, $validIncludes)
    {
        foreach ($includes as $include) {
            if (!in_array($include, $validIncludes)) {
                throw new \OutOfBoundsException(sprintf('%s is not a valid include', $include));
            }
        }

        return TRUE;
    }

    /**
     * @param $values
     * @param $valid
     *
     * @return bool
     * @throws Exception
     */
    public function validateFilter($values, $valid)
    {
        foreach ($values as $value) {
            if (!in_array($value, $valid)) {
                throw new Exception(sprintf('%s is not a valid filter', $value));
            }
        }

        return TRUE;
    }

    /**
     * Check that the status or type values are valid. Then, check that
     * the filters can be used with the given includes.
     *
     * @param  string $entity
     * @param  array  $includes
     * @param  array  $releaseType
     * @param  array  $releaseStatus
     *
     * @throws Exception
     * @return array
     */
    public function getBrowseFilterParams(
        $entity,
        $includes,
        array $releaseType = array(),
        array $releaseStatus = array()
    ) {
        $this->validateFilter($releaseStatus, self::$validReleaseStatuses);
        $this->validateFilter($releaseType, self::$validReleaseTypes);

        if (!empty($releaseStatus)
            && !in_array('releases', $includes)
        ) {
            throw new Exception("Can't have a status with no release include");
        }

        if (!empty($releaseType)
            && !in_array('release-groups', $includes)
            && !in_array('releases', $includes)
            && $entity != 'release-group'
        ) {
            throw new Exception("Can't have a release type with no release-group include");
        }

        $params = array();

        if (!empty($releaseType)) {
            $params['type'] = implode('|', $releaseType);
        }

        if (!empty($releaseStatus)) {
            $params['status'] = implode('|', $releaseStatus);
        }

        return $params;
    }

    /**
     * @return array
     */
    public function getHttpOptions()
    {
        return array(
            'method'     => 'GET',
            'user-agent' => $this->getUserAgent(),
            'user'       => $this->getUser(),
            'password'   => $this->getPassword()
        );
    }

    /**
     * Returns the user agent.
     *
     * @return string
     */
    public function getUserAgent()
    {
        return $this->userAgent;
    }

    /**
     * Set the user agent for POST requests (and GET requests for user tags)
     *
     * @param string $application The name of the application using this library
     * @param string $version The version of the application using this library
     * @param string $contactInfo E-mail or website of the application
     *
     * @throws Exception
     */
    public function setUserAgent($application, $version, $contactInfo)
    {
        if (strpos($version, '-') !== FALSE) {
            throw new Exception('User agent: version should not contain a "-" character.');
        }

        $this->userAgent = $application . '/' . $version . ' (' . $contactInfo . ')';
    }

    /**
     * Returns the MusicBrainz user
     *
     * @return string
     */
    public function getUser()
    {
        return $this->user;
    }

    /**
     * Sets the MusicBrainz user
     *
     * @param string $user
     */
    public function setUser($user)
    {
        $this->user = $user;
    }

    /**
     * Returns the user’s password
     *
     * @return string
     */
    public function getPassword()
    {
        return $this->password;
    }

    /**
     * Sets the user’s password
     *
     * @param string $password
     */
    public function setPassword($password)
    {
        $this->password = $password;
    }
}


1		<?php
2
3		namespace MusicBrainz;
4
5		use MusicBrainz\HttpAdapters\AbstractHttpAdapter;
6
7		/**
8		* Connect to the MusicBrainz web service
9		*
10		* http://musicbrainz.org/doc/Development
11		*
12		* @link http://github.com/mikealmond/musicbrainz
13		* @package MusicBrainz
14		*/
15		class MusicBrainz
16		{
17		/**
18		* @var array
19		*/
20		private static $validIncludes = array(
21		'artist' => array(
22		"recordings",
23		"releases",
24		"release-groups",
25		"works",
26		"various-artists",
27		"discids",
28		"media",
29		"aliases",
30		"tags",
31		"user-tags",
32		"ratings",
33		"user-ratings", // misc
34		"artist-rels",
35		"label-rels",
36		"recording-rels",
37		"release-rels",
38		"release-group-rels",
39		"url-rels",
40		"work-rels",
41		"annotation"
42		),
43		'annotation' => array(),
44		'label' => array(
45		"releases",
46		"discids",
47		"media",
48		"aliases",
49		"tags",
50		"user-tags",
51		"ratings",
52		"user-ratings", // misc
53		"artist-rels",
54		"label-rels",
55		"recording-rels",
56		"release-rels",
57		"release-group-rels",
58		"url-rels",
59		"work-rels",
60		"annotation"
61		),
62		'recording' => array(
63		"artists",
64		"releases", // sub queries
65		"discids",
66		"media",
67		"artist-credits",
68		"tags",
69		"user-tags",
70		"ratings",
71		"user-ratings", // misc
72		"artist-rels",
73		"label-rels",
74		"recording-rels",
75		"release-rels",
76		"release-group-rels",
77		"url-rels",
78		"work-rels",
79		"annotation",
80		"aliases"
81		),
82		'release' => array(
83		"artists",
84		"labels",
85		"recordings",
86		"release-groups",
87		"media",
88		"artist-credits",
89		"discids",
90		"puids",
91		"echoprints",
92		"isrcs",
93		"artist-rels",
94		"label-rels",
95		"recording-rels",
96		"release-rels",
97		"release-group-rels",
98		"url-rels",
99		"work-rels",
100		"recording-level-rels",
101		"work-level-rels",
102		"annotation",
103		"aliases"
104		),
105		'release-group' => array(
106		"artists",
107		"releases",
108		"discids",
109		"media",
110		"artist-credits",
111		"tags",
112		"user-tags",
113		"ratings",
114		"user-ratings", // misc
115		"artist-rels",
116		"label-rels",
117		"recording-rels",
118		"release-rels",
119		"release-group-rels",
120		"url-rels",
121		"work-rels",
122		"annotation",
123		"aliases"
124		),
125		'work' => array(
126		"artists", // sub queries
127		"aliases",
128		"tags",
129		"user-tags",
130		"ratings",
131		"user-ratings", // misc
132		"artist-rels",
133		"label-rels",
134		"recording-rels",
135		"release-rels",
136		"release-group-rels",
137		"url-rels",
138		"work-rels",
139		"annotation"
140		),
141		'discid' => array(
142		"artists",
143		"labels",
144		"recordings",
145		"release-groups",
146		"media",
147		"artist-credits",
148		"discids",
149		"puids",
150		"echoprints",
151		"isrcs",
152		"artist-rels",
153		"label-rels",
154		"recording-rels",
155		"release-rels",
156		"release-group-rels",
157		"url-rels",
158		"work-rels",
159		"recording-level-rels",
160		"work-level-rels"
161		),
162		'echoprint' => array(
163		"artists",
164		"releases"
165		),
166		'puid' => array(
167		"artists",
168		"releases",
169		"puids",
170		"echoprints",
171		"isrcs"
172		),
173		'isrc' => array(
174		"artists",
175		"releases",
176		"puids",
177		"echoprints",
178		"isrcs"
179		),
180		'iswc' => array(
181		"artists"
182		),
183		'collection' => array(
184		'releases'
185		)
186		);
187		/**
188		* @var array
189		*/
190		private static $validBrowseIncludes = array(
191		'release' => array(
192		"artist-credits",
193		"labels",
194		"recordings",
195		"release-groups",
196		"media",
197		"discids",
198		"artist-rels",
199		"label-rels",
200		"recording-rels",
201		"release-rels",
202		"release-group-rels",
203		"url-rels",
204		"work-rels"
205		),
206		'recording' => array(
207		"artist-credits",
208		"tags",
209		"ratings",
210		"user-tags",
211		"user-ratings"
212		),
213		'label' => array(
214		"aliases",
215		"tags",
216		"ratings",
217		"user-tags",
218		"user-ratings"
219		),
220		'artist' => array(
221		"aliases",
222		"tags",
223		"ratings",
224		"user-tags",
225		"user-ratings"
226		),
227		'release-group' => array(
228		"artist-credits",
229		"tags",
230		"ratings",
231		"user-tags",
232		"user-ratings"
233		)
234		);
235		/**
236		* @var array
237		*/
238		private static $validReleaseTypes = array(
239		"nat",
240		"album",
241		"single",
242		"ep",
243		"compilation",
244		"soundtrack",
245		"spokenword",
246		"interview",
247		"audiobook",
248		"live",
249		"remix",
250		"other"
251		);
252		/**
253		* @var array
254		*/
255		private static $validReleaseStatuses = array(
256		"official",
257		"promotion",
258		"bootleg",
259		"pseudo-release"
260		);
261		/**
262		* @var string
263		*/
264		private $userAgent = 'MusicBrainz PHP Api/0.2.0';
265		/**
266		* The username a MusicBrainz user. Used for authentication.
267		*
268		* @var string
269		*/
270		private $user = NULL;
271		/**
272		* The password of a MusicBrainz user. Used for authentication.
273		*
274		* @var string
275		*/
276		private $password = NULL;
277		/**
278		* The Http adapter used to make requests
279		*
280		* @var \MusicBrainz\HttpAdapters\AbstractHttpAdapter
281		*/
282		private $adapter;
283
284		/**
285		* Initializes the class. You can pass the user’s username and password
286		* However, you can modify or add all values later.
287		*
288		* @param HttpAdapters\AbstractHttpAdapter $adapter The Http adapter used to make requests
289		* @param string $user
290		* @param string $password
291		*/
292		public function __construct(AbstractHttpAdapter $adapter, $user = NULL, $password = NULL)
293		{
294		$this->adapter = $adapter;
295
296		if (NULL !== $user) {
297		$this->setUser($user);
298		}
299
300		if (NULL !== $password) {
301		$this->setPassword($password);
302		}
303		}
304
305		/**
306		* Do a MusicBrainz lookup
307		*
308		* http://musicbrainz.org/doc/XML_Web_Service
309		*
310		* @param string $entity
311		* @param string $mbid Music Brainz ID
312		* @param array $includes
313		*
314		* @throws Exception
315		* @return array
316		*/
317		public function lookup($entity, $mbid, array $includes = array())
318		{
319
320		if (!$this->isValidEntity($entity)) {
321		throw new Exception('Invalid entity');
322		}
323
324		$this->validateInclude($includes, self::$validIncludes[$entity]);
325
326		$authRequired = $this->isAuthRequired($entity, $includes);
327
328		$params = array(
329		'inc' => implode('+', $includes),
330		'fmt' => 'json'
331		);
332
333		$response = $this->adapter->call($entity . '/' . $mbid, $params, $this->getHttpOptions(), $authRequired);
334
335		return $response;
336		}
337
338		/**
339		* @param Filters\FilterInterface $filter
340		* @param $entity
341		* @param $mbid
342		* @param array $includes
343		* @param int $limit
344		* @param null $offset
345		* @param array $releaseType
346		* @param array $releaseStatus
347		*
348		* @return array
349		* @throws Exception
350		*/
351		protected function browse(
352		Filters\FilterInterface $filter,
353		$entity,
354		$mbid,
355		array $includes,
356		$limit = 25,
357		$offset = NULL,
358		$releaseType = array(),
359		$releaseStatus = array()
360		) {
361		if (!$this->isValidMBID($mbid)) {
362		throw new Exception('Invalid Music Brainz ID');
363		}
364
365		if ($limit > 100) {
366		throw new Exception('Limit can only be between 1 and 100');
367		}
368
369		$this->validateInclude($includes, self::$validBrowseIncludes[$filter->getEntity()]);
370
371		$authRequired = $this->isAuthRequired($filter->getEntity(), $includes);
372
373		$params = $this->getBrowseFilterParams($filter->getEntity(), $includes, $releaseType, $releaseStatus);
374		$params += array(
375		$entity => $mbid,
376		'inc' => implode('+', $includes),
377		'limit' => $limit,
378		'offset' => $offset,
379		'fmt' => 'json'
380		);
381
382		$response = $this->adapter->call($filter->getEntity() . '/', $params, $this->getHttpOptions(), $authRequired);
383
384		return $response;
385		}
386
387		/**
388		* @param $entity
389		* @param $mbid
390		* @param array $includes
391		* @param int $limit
392		* @param null $offset
393		*
394		* @return array
395		* @throws Exception
396		*/
397	View Code Duplication	public function browseArtist($entity, $mbid, array $includes = array(), $limit = 25, $offset = NULL)
398		{
399		if (!in_array($entity, array('recording', 'release', 'release-group'))) {
400		throw new Exception('Invalid browse entity for artist');
401		}
402
403		return $this->browse(new Filters\ArtistFilter(array()), $entity, $mbid, $includes, $limit, $offset);
404		}
405
406		/**
407		* @param $entity
408		* @param $mbid
409		* @param array $includes
410		* @param int $limit
411		* @param null $offset
412		*
413		* @return array
414		* @throws Exception
415		*/
416	View Code Duplication	public function browseLabel($entity, $mbid, array $includes, $limit = 25, $offset = NULL)
417		{
418		if (!in_array($entity, array('release'))) {
419		throw new Exception('Invalid browse entity for label');
420		}
421
422		return $this->browse(new Filters\LabelFilter(array()), $entity, $mbid, $includes, $limit, $offset);
423		}
424
425		/**
426		* @param $entity
427		* @param $mbid
428		* @param array $includes
429		* @param int $limit
430		* @param null $offset
431		*
432		* @return array
433		* @throws Exception
434		*/
435	View Code Duplication	public function browseRecording($entity, $mbid, array $includes = array(), $limit = 25, $offset = NULL)
436		{
437		if (!in_array($entity, array('artist', 'release'))) {
438		throw new Exception('Invalid browse entity for recording');
439		}
440
441		return $this->browse(new Filters\RecordingFilter(array()), $entity, $mbid, $includes, $limit, $offset);
442		}
443
444		/**
445		* @param string $entity
446		* @param string $mbid
447		* @param array $includes
448		* @param int $limit
449		* @param null $offset
450		* @param array $releaseType
451		* @param array $releaseStatus
452		*
453		* @return array
454		* @throws Exception
455		*/
456		public function browseRelease(
457		$entity,
458		$mbid,
459		array $includes = array(),
460		$limit = 25,
461		$offset = NULL,
462		$releaseType = array(),
463		$releaseStatus = array()
464		) {
465		if (!in_array($entity, array('artist', 'label', 'recording', 'release-group'))) {
466		throw new Exception('Invalid browse entity for release');
467		}
468
469		return $this->browse(
470		new Filters\ReleaseFilter(array()),
471		$entity,
472		$mbid,
473		$includes,
474		$limit,
475		$offset,
476		$releaseType,
477		$releaseStatus
478		);
479		}
480
481		/**
482		* @param $entity
483		* @param $mbid
484		* @param int $limit
485		* @param null $offset
486		* @param array $includes
487		* @param array $releaseType
488		*
489		* @return array
490		* @throws Exception
491		*/
492	View Code Duplication	public function browseReleaseGroup(
493		$entity,
494		$mbid,
495		$limit = 25,
496		$offset = NULL,
497		array $includes,
498		$releaseType = array()
499		) {
500		if (!in_array($entity, array('artist', 'release'))) {
501		throw new Exception('Invalid browse entity for release group');
502		}
503
504		return $this->browse(
505		new Filters\ReleaseGroupFilter(array()),
506		$entity,
507		$mbid,
508		$includes,
509		$limit,
510		$offset,
511		$releaseType
512		);
513		}
514
515		/**
516		* Performs a query based on the parameters supplied in the Filter object.
517		* Returns an array of possible matches with scores, as returned by the
518		* musicBrainz web service.
519		*
520		* Note that these types of queries only return some information, and not all the
521		* information available about a particular item is available using this type of query.
522		* You will need to get the MusicBrainz id (mbid) and perform a lookup with browse
523		* to return complete information about a release. This method returns an array of
524		* objects that are possible matches.
525		*
526		* @param Filters\FilterInterface $filter
527		* @param int $limit
528		* @param null\|int $offset
529		*
530		* @throws Exception
531		* @return array
532		*/
533		public function search(Filters\FilterInterface $filter, $limit = 25, $offset = NULL)
534		{
535		if (count($filter->createParameters()) < 1) {
536		throw new Exception('The artist filter object needs at least 1 argument to create a query.');
537		}
538
539		if ($limit > 100) {
540		throw new Exception('Limit can only be between 1 and 100');
541		}
542
543		$params = $filter->createParameters(array('limit' => $limit, 'offset' => $offset, 'fmt' => 'json'));
544
545		$response = $this->adapter->call($filter->getEntity() . '/', $params, $this->getHttpOptions(), FALSE, TRUE);
546
547		return $filter->parseResponse($response, $this);
548		}
549
550		/**
551		* @param $mbid
552		*
553		* @return int
554		*/
555		public function isValidMBID($mbid)
556		{
557		return preg_match("/^(\{)?[a-f\d]{8}(-[a-f\d]{4}){4}[a-f\d]{8}(?(1)\})$/i", $mbid);
558		}
559
560		/**
561		* Check the list of allowed entities
562		*
563		* @param string $entity
564		*
565		* @return bool
566		*/
567		private function isValidEntity($entity)
568		{
569		return array_key_exists($entity, self::$validIncludes);
570		}
571
572		/**
573		* Some calls require authentication
574		*
575		* @param string $entity
576		* @param $includes
577		*
578		* @return bool
579		*/
580		protected function isAuthRequired($entity, $includes)
581		{
582		if (in_array('user-tags', $includes) \|\| in_array('user-ratings', $includes)) {
583		return TRUE;
584		}
585
586		if (substr($entity, 0, strlen('collection')) === 'collection') {
587		return TRUE;
588		}
589
590		return FALSE;
591		}
592
593		/**
594		* @param $includes
595		* @param $validIncludes
596		*
597		* @return bool
598		* @throws \OutOfBoundsException
599		*/
600		public function validateInclude($includes, $validIncludes)
601		{
602		foreach ($includes as $include) {
603		if (!in_array($include, $validIncludes)) {
604		throw new \OutOfBoundsException(sprintf('%s is not a valid include', $include));
605		}
606		}
607
608		return TRUE;
609		}
610
611		/**
612		* @param $values
613		* @param $valid
614		*
615		* @return bool
616		* @throws Exception
617		*/
618		public function validateFilter($values, $valid)
619		{
620		foreach ($values as $value) {
621		if (!in_array($value, $valid)) {
622		throw new Exception(sprintf('%s is not a valid filter', $value));
623		}
624		}
625
626		return TRUE;
627		}
628
629		/**
630		* Check that the status or type values are valid. Then, check that
631		* the filters can be used with the given includes.
632		*
633		* @param string $entity
634		* @param array $includes
635		* @param array $releaseType
636		* @param array $releaseStatus
637		*
638		* @throws Exception
639		* @return array
640		*/
641		public function getBrowseFilterParams(
642		$entity,
643		$includes,
644		array $releaseType = array(),
645		array $releaseStatus = array()
646		) {
647		$this->validateFilter($releaseStatus, self::$validReleaseStatuses);
648		$this->validateFilter($releaseType, self::$validReleaseTypes);
649
650		if (!empty($releaseStatus)
651		&& !in_array('releases', $includes)
652		) {
653		throw new Exception("Can't have a status with no release include");
654		}
655
656		if (!empty($releaseType)
657		&& !in_array('release-groups', $includes)
658		&& !in_array('releases', $includes)
659		&& $entity != 'release-group'
660		) {
661		throw new Exception("Can't have a release type with no release-group include");
662		}
663
664		$params = array();
665
666		if (!empty($releaseType)) {
667		$params['type'] = implode('\|', $releaseType);
668		}
669
670		if (!empty($releaseStatus)) {
671		$params['status'] = implode('\|', $releaseStatus);
672		}
673
674		return $params;
675		}
676
677		/**
678		* @return array
679		*/
680		public function getHttpOptions()
681		{
682		return array(
683		'method' => 'GET',
684		'user-agent' => $this->getUserAgent(),
685		'user' => $this->getUser(),
686		'password' => $this->getPassword()
687		);
688		}
689
690		/**
691		* Returns the user agent.
692		*
693		* @return string
694		*/
695		public function getUserAgent()
696		{
697		return $this->userAgent;
698		}
699
700		/**
701		* Set the user agent for POST requests (and GET requests for user tags)
702		*
703		* @param string $application The name of the application using this library
704		* @param string $version The version of the application using this library
705		* @param string $contactInfo E-mail or website of the application
706		*
707		* @throws Exception
708		*/
709		public function setUserAgent($application, $version, $contactInfo)
710		{
711		if (strpos($version, '-') !== FALSE) {
712		throw new Exception('User agent: version should not contain a "-" character.');
713		}
714
715		$this->userAgent = $application . '/' . $version . ' (' . $contactInfo . ')';
716		}
717
718		/**
719		* Returns the MusicBrainz user
720		*
721		* @return string
722		*/
723		public function getUser()
724		{
725		return $this->user;
726		}
727
728		/**
729		* Sets the MusicBrainz user
730		*
731		* @param string $user
732		*/
733		public function setUser($user)
734		{
735		$this->user = $user;
736		}
737
738		/**
739		* Returns the user’s password
740		*
741		* @return string
742		*/
743		public function getPassword()
744		{
745		return $this->password;
746		}
747
748		/**
749		* Sets the user’s password
750		*
751		* @param string $password
752		*/
753		public function setPassword($password)
754		{
755		$this->password = $password;
756		}
757		}
758

powered-by-moe / MusicBrainz

MusicBrainz F last analyzed 2016-10-21 09:13 UTC