/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
if ('EUR' !== $currencyPair->getBaseCurrency()) {
throw new UnsupportedCurrencyPairException($currencyPair);
}
$content = $this->fetchContent(self::URL);
$xmlElement = StringUtil::xmlToElement($content);
$cube = $xmlElement->Cube->Cube;
$cubeAttributes = $cube->attributes();
$date = new \DateTime((string) $cubeAttributes['time']);
foreach ($cube->Cube as $cube) {
$cubeAttributes = $cube->attributes();
$cubeQuoteCurrency = (string) $cubeAttributes['currency'];
if ($cubeQuoteCurrency === $currencyPair->getQuoteCurrency()) {
return new Rate((string) $cubeAttributes['rate'], $date);
}
}
throw new UnsupportedCurrencyPairException($currencyPair);
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
$content = $this->fetchContent(self::URL);
$xmlElement = StringUtil::xmlToElement($content);
$baseCurrency = (string) $xmlElement->Body->OrigCurrency;
if ($baseCurrency !== $currencyPair->getBaseCurrency()) {
throw new UnsupportedCurrencyPairException($currencyPair);
}
$cube = $xmlElement->Body->Cube;
$cubeAttributes = $cube->attributes();
$date = new \DateTime((string) $cubeAttributes['date']);
foreach ($cube->Rate as $rate) {
$rateAttributes = $rate->attributes();
$rateQuoteCurrency = (string) $rateAttributes['currency'];
if ($rateQuoteCurrency === $currencyPair->getQuoteCurrency()) {
$rateValue = !empty($rateAttributes['multiplier']) ? (double) $rate / (int) $rateAttributes['multiplier'] : (double) $rate;
return new Rate((string) $rateValue, $date);
}
}
throw new UnsupportedCurrencyPairException($currencyPair);
}
/**
* @test
* @expectedException \RuntimeException
*/
function it_throws_an_exception_when_converting_invalid_xml()
{
StringUtil::xmlToElement('/');
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
$url = sprintf(self::URL, $currencyPair->getBaseCurrency(), $currencyPair->getQuoteCurrency());
$content = $this->fetchContent($url);
return new Rate((string) StringUtil::xmlToElement($content), new \DateTime());
}
