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@ -38,6 +38,9 @@ use Google\Protobuf\Internal\MapField; |
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class GPBUtil |
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{ |
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const NANOS_PER_MILLISECOND = 1000000; |
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const NANOS_PER_MICROSECOND = 1000; |
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public static function divideInt64ToInt32($value, &$high, &$low, $trim = false) |
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{ |
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$isNeg = (bccomp($value, 0) < 0); |
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@ -340,4 +343,81 @@ class GPBUtil |
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} |
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return $result; |
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} |
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public static function parseTimestamp($timestamp) |
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{ |
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// prevent parsing timestamps containing with the non-existant year "0000" |
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// DateTime::createFromFormat parses without failing but as a nonsensical date |
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if (substr($timestamp, 0, 4) === "0000") { |
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throw new \Exception("Year cannot be zero."); |
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} |
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// prevent parsing timestamps ending with a lowercase z |
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if (substr($timestamp, -1, 1) === "z") { |
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throw new \Exception("Timezone cannot be a lowercase z."); |
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} |
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$nanoseconds = 0; |
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$periodIndex = strpos($timestamp, "."); |
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if ($periodIndex !== false) { |
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$nanosecondsLength = 0; |
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// find the next non-numeric character in the timestamp to calculate |
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// the length of the nanoseconds text |
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for ($i = $periodIndex + 1, $length = strlen($timestamp); $i < $length; $i++) { |
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if (!is_numeric($timestamp[$i])) { |
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$nanosecondsLength = $i - ($periodIndex + 1); |
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break; |
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} |
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} |
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if ($nanosecondsLength % 3 !== 0) { |
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throw new \Exception("Nanoseconds must be disible by 3."); |
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} |
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if ($nanosecondsLength > 9) { |
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throw new \Exception("Nanoseconds must be in the range of 0 to 999,999,999 nanoseconds."); |
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} |
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if ($nanosecondsLength > 0) { |
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$nanoseconds = substr($timestamp, $periodIndex + 1, $nanosecondsLength); |
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$nanoseconds = intval($nanoseconds); |
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// remove the nanoseconds and preceding period from the timestamp |
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$date = substr($timestamp, 0, $periodIndex - 1); |
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$timezone = substr($timestamp, $periodIndex + $nanosecondsLength); |
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$timestamp = $date.$timezone; |
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} |
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} |
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$date = \DateTime::createFromFormat(\DateTime::RFC3339, $timestamp, new \DateTimeZone("UTC")); |
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if ($date === false) { |
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throw new \Exception("Invalid RFC 3339 timestamp."); |
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} |
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$value = new \Google\Protobuf\Timestamp(); |
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$seconds = $date->format("U"); |
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$value->setSeconds($seconds); |
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$value->setNanos($nanoseconds); |
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return $value; |
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} |
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public static function formatTimestamp($value) |
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{ |
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$nanoseconds = static::getNanosecondsForTimestamp($value->getNanos()); |
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if (!empty($nanoseconds)) { |
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$nanoseconds = ".".$nanoseconds; |
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} |
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$date = new \DateTime('@'.$value->getSeconds(), new \DateTimeZone("UTC")); |
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return $date->format("Y-m-d\TH:i:s".$nanoseconds."\Z"); |
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} |
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public static function getNanosecondsForTimestamp($nanoseconds) |
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{ |
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if ($nanoseconds == 0) { |
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return ''; |
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} |
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if ($nanoseconds % static::NANOS_PER_MILLISECOND == 0) { |
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return sprintf('%03d', $nanoseconds / static::NANOS_PER_MILLISECOND); |
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} |
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if ($nanoseconds % static::NANOS_PER_MICROSECOND == 0) { |
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return sprintf('%06d', $nanoseconds / static::NANOS_PER_MICROSECOND); |
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} |
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return sprintf('%09d', $nanoseconds); |
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} |
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} |
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Jack Wakefield
7 years ago
committed by
Paul Yang