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<?php |
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namespace BiffBangPow\SSMonitor\Server\Helper; |
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class ReportingHelper |
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{ |
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/** |
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* Compares Semver versions |
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* Returns true is the version if lower than the threshold, false if the version is equal or greater |
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* @param $version |
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* @param $threshold |
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* @return bool |
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*/ |
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public static function isVersionLess($version, $threshold) |
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{ |
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$versionParts = explode('.', $version); |
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$thresholdParts = explode('.', $threshold); |
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// Compare major version numbers |
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if ($versionParts[0] < $thresholdParts[0]) { |
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return true; |
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} elseif ($versionParts[0] > $thresholdParts[0]) { |
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return false; |
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} |
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// Compare minor version numbers |
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if ($versionParts[1] < $thresholdParts[1]) { |
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return true; |
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} elseif ($versionParts[1] > $thresholdParts[1]) { |
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return false; |
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} |
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// Compare patch version numbers - default to zero if someone forgot to specify |
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if (!isset($versionParts[2])) { |
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$versionParts[2] = 0; |
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} |
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if (!isset($thresholdParts[2])) { |
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$thresholdParts[2] = 0; |
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} |
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if ($versionParts[2] < $thresholdParts[2]) { |
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return true; |
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} elseif ($versionParts[2] > $thresholdParts[2]) { |
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return false; |
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} |
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// Versions are equal or threshold is invalid |
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return false; |
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} |
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/** |
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* Extract the major version number for a given version string |
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* @param $versionString |
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* @return int|mixed|string|null |
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*/ |
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public static function getMajorVersion($versionString) |
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{ |
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if (stristr($versionString, ".")) { |
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$versionParts = explode(".", $versionString); |
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return array_shift($versionParts); |
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} |
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else { |
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return (int)$versionString; |
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} |
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} |
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/** |
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* Convert a memory string to bytes |
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* @param $memoryString |
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* @return int |
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*/ |
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public static function convertMemoryStringToBytes($memoryString) |
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{ |
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$unit = strtoupper(substr($memoryString, -1)); |
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$size = (int)substr($memoryString, 0, -1); |
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switch ($unit) { |
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case 'K': |
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$size *= 1024; |
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break; |
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case 'M': |
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$size *= 1048576; |
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break; |
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case 'G': |
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$size *= 1073741824; |
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break; |
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default: |
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// Assume bytes if no matching unit is provided |
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break; |
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} |
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return $size; |
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} |
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96
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} |
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BiffBangPow /
silverstripe-monitoring-server
