1: <?php
 2: 
 3: namespace Scopus\Response;
 4: 
 5: class Source
 6: {
 7:     /** @var array */
 8:     protected $data;
 9: 
10:     public function __construct(array $data)
11:     {
12:         $this->data = $data;
13:     }
14:     
15:     public function getTitle()
16:     {
17:         return isset($this->data['sourcetitle']) ? $this->data['sourcetitle'] : null;
18:     }
19:     
20:     public function getTitleAbbrev()
21:     {
22:         return isset($this->data['sourcetitle-abbrev']) ? $this->data['sourcetitle-abbrev'] : null;
23:     }
24:     
25:     protected function getVolisspag()
26:     {
27:         return isset($this->data['volisspag']) ? $this->data['volisspag'] : null;
28:     }
29:     
30:     protected function getPageRange()
31:     {
32:         $volisspag = $this->getVolisspag();
33:         return $volisspag && isset($volisspag['pagerange']) ? $volisspag['pagerange'] : null;
34:     }
35:     
36:     public function getStartPage()
37:     {
38:         $pageRange = $this->getPageRange();
39:         return $pageRange && isset($pageRange['@first']) ? $pageRange['@first'] : null;
40:     }
41:     
42:     public function getEndPage()
43:     {
44:         $pageRange = $this->getPageRange();
45:         return $pageRange && isset($pageRange['@last']) ? $pageRange['@last'] : null;
46:     }
47:     
48:     protected function getVoliss()
49:     {
50:         $volisspag = $this->getVolisspag();
51:         return $volisspag && isset($volisspag['voliss']) ? $volisspag['voliss'] : null;
52:     }
53:     
54:     public function getIssue()
55:     {
56:         $volIss = $this->getVoliss();
57:         return $volIss && isset($volIss['@issue']) ? $volIss['@issue'] : null;
58:     }
59:     
60:     public function getVolume()
61:     {
62:         $volIss = $this->getVoliss();
63:         return $volIss && isset($volIss['@volume']) ? $volIss['@volume'] : null;
64:     }
65: }