Completed
Push — master ( 1f59c8...e3081b )
by Nikola
04:10 queued 14s
created

NationalBankOfSerbiaXmlSaxParser::parseXml()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 5
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 3
CRAP Score 1

Importance

Changes 1
Bugs 0 Features 0
Metric Value
c 1
b 0
f 0
dl 0
loc 5
ccs 3
cts 3
cp 1
rs 9.4286
cc 1
eloc 3
nc 1
nop 1
crap 1
1
<?php
2
/*
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 * This file is part of the Exchange Rate package, an RunOpenCode project.
4
 *
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 * (c) 2016 RunOpenCode
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace RunOpenCode\ExchangeRate\Source\Api;
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use RunOpenCode\ExchangeRate\Contract\RateInterface;
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use RunOpenCode\ExchangeRate\Model\Rate;
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use RunOpenCode\ExchangeRate\Source\NationalBankOfSerbiaDomCrawlerSource;
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/**
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 * Class NationalBankOfSerbiaXmlSaxParser
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 *
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 * Parses XML files from National bank of Serbia.
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 *
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 * @package RunOpenCode\ExchangeRate\Source\Api
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 * @internal
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 */
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class NationalBankOfSerbiaXmlSaxParser
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{
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    /**
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     * @var RateInterface[]
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     */
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    private $rates;
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    /**
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     * @var \SplStack
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     */
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    private $stack;
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    /**
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     * @var array
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     */
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    private $currentRate;
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    /**
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     * @var \DateTime
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     */
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    private $date;
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    /**
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     * @var string
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     */
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    private $rateType;
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    /**
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     * Parse XML from National bank of Serbia.
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     *
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     * @param string $xml
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     * @return RateInterface[]
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     */
57 2
    public function parse($xml)
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    {
59 2
        $this->rates = array();
60 2
        $this->stack = new \SplStack();
61 2
        $this->currentRate = array();
62 2
        $this->date = new \DateTime('now');
63 2
        $this->rateType = 'default';
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65 2
        $parser = xml_parser_create();
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67 2
        xml_set_element_handler(
68 2
            $parser,
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            \Closure::bind(function($parser, $name, $attributes) {
70 2
                $this->onStart($parser, $name, $attributes);
71 2
            }, $this),
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            \Closure::bind(function($parser, $name) {
73 2
                $this->onEnd($parser, $name);
74 2
            }, $this)
75 2
        );
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77 2
        xml_set_character_data_handler(
78 2
            $parser,
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            \Closure::bind(function($parser, $data) {
80 2
                $this->onData($parser, $data);
81 2
            }, $this));
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83 2
        xml_parse($parser, $xml);
84 2
        xml_parser_free($parser);
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86 2
        return $this->rates;
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    }
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    /**
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     * SAX on tag start callback.
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     *
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     * @param $parser
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     * @param $name
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     * @param $attributes
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     */
96 2
    protected function onStart($parser, $name, $attributes)
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    {
98 2
        $this->stack->push($name);
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100 2
        if ($name === 'ITEM') {
101 2
            $this->currentRate = array();
102 2
        }
103 2
    }
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105
    /**
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     * SAX on tag end callback.
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     *
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     * @param $parser
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     * @param $name
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     */
111 2
    protected function onEnd($parser, $name)
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    {
113 2
        $this->stack->pop();
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115 2
        $buildRate = function($value, $currencyCode, $rateType, $date) {
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117 2
            return new Rate(
118 2
                NationalBankOfSerbiaDomCrawlerSource::NAME,
119 2
                $value,
120 2
                $currencyCode,
121 2
                $rateType,
122 2
                $date,
123 2
                'RSD',
124 2
                new \DateTime('now'),
125 2
                new \DateTime('now')
126 2
            );
127 2
        };
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129 2
        if ($name === 'ITEM') {
130
131 2 View Code Duplication
            if (array_key_exists('buyingRate', $this->currentRate)) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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                $this->rates[] = $buildRate(
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                    $this->currentRate['buyingRate'] / $this->currentRate['unit'],
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                    $this->currentRate['currencyCode'],
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                    $this->rateType . '_buying',
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                    $this->date
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                );
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            }
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141 2 View Code Duplication
            if (array_key_exists('sellingRate', $this->currentRate)) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
142
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                $this->rates[] = $buildRate(
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                    $this->currentRate['sellingRate'] / $this->currentRate['unit'],
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                    $this->currentRate['currencyCode'],
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                    $this->rateType . '_selling',
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                    $this->date
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                );
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            }
150
151 2
            if (array_key_exists('middleRate', $this->currentRate)) {
152
153 2
                $this->rates[] = $buildRate(
154 2
                    $this->currentRate['middleRate'] / $this->currentRate['unit'],
155 2
                    $this->currentRate['currencyCode'],
156 2
                    'default',
157 2
                    $this->date
158 2
                );
159 2
            }
160
161 2
            $this->currentRate = array();
162 2
        }
163 2
    }
164
165
    /**
166
     * SAX on data callback.
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     *
168
     * @param $parser
169
     * @param $data
170
     */
171 2
    protected function onData($parser, $data)
172
    {
173 2
        if (!empty($data)) {
174
175 2
            switch ($this->stack->top()) {
176 2
                case 'DATE':
177 2
                    $this->date = \DateTime::createFromFormat('d.m.Y', $data);
178 2
                    break;
179 2
                case 'TYPE':
180 2
                    $data = trim($data);
181 2
                    if ($data === 'FOREIGN EXCHANGE') {
182
                        $this->rateType = 'foreign_exchange';
183 2
                    } elseif ($data === 'FOREIGN CASH') {
184
                        $this->rateType = 'foreign_cache';
185
                    }
186 2
                    break;
187 2
                case 'CURRENCY':
188 2
                    $this->currentRate['currencyCode'] = trim($data);
189 2
                    break;
190 2
                case 'UNIT':
191 2
                    $this->currentRate['unit'] = (int) trim($data);
192 2
                    break;
193 2
                case 'BUYING_RATE':
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                    $this->currentRate['buyingRate'] = (float) trim($data);
195
                    break;
196 2
                case 'SELLING_RATE':
197
                    $this->currentRate['sellingRate'] = (float) trim($data);
198
                    break;
199 2
                case 'MIDDLE_RATE':
200 2
                    $this->currentRate['middleRate'] = (float) trim($data);
201 2
                    break;
202 2
            }
203 2
        }
204 2
    }
205
206
    /**
207
     * Parse XML from National bank of Serbia.
208
     *
209
     * @param string $xml
210
     * @return RateInterface[]
211
     */
212 2
    public static function parseXml($xml)
213
    {
214 2
        $parser = new static();
215 2
        return $parser->parse($xml);
216
    }
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}
219