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<?php |
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namespace InfluxDB\Adapter; |
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use DateTime; |
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trait WriterTrait |
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{ |
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public function messageToLineProtocol(array $message, array $tags = []) |
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{ |
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if (!array_key_exists("points", $message)) { |
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1 |
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return; |
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} |
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$message = $this->prepareMessageSection($message); |
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$message["tags"] = array_replace_recursive($tags, $message["tags"]); |
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$lines = []; |
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foreach ($message["points"] as $point) { |
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$point = $this->prepareMessageSection($point, $message["time"]); |
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$tags = array_replace_recursive($message["tags"], $point["tags"]); |
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$tagLine = $this->tagsToString($tags); |
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$lines[] = sprintf( |
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"%s%s %s %d", $point["measurement"], $tagLine, $this->pointsToString($point["fields"]), $point["time"] |
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); |
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} |
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return implode("\n", $lines); |
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} |
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private function prepareMessageSection(array $message, $unixepoch = false) |
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{ |
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if (!array_key_exists("tags", $message)) { |
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$message["tags"] = []; |
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} |
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if (!$unixepoch) { |
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$unixepoch = (int)(microtime(true) * 1e9); |
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} |
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if (array_key_exists("time", $message)) { |
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$dt = new DateTime($message["time"]); |
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$unixepoch = (int)($dt->format("U") * 1e9); |
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} |
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$message["time"] = $unixepoch; |
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return $message; |
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} |
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protected function tagsToString(array $tags) |
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{ |
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$tagLine = ""; |
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if (count($tags) > 0) { |
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array_walk($tags, function (&$value, $key) { |
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$value = "{$this->addSlashes($key)}={$this->addSlashes($value)}"; |
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}); |
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$tagLine = sprintf(",%s", implode(",", $tags)); |
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} |
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return $tagLine; |
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} |
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protected function pointsToString(array $elements) |
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{ |
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array_walk($elements, function (&$value, $key) { |
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$dataType = gettype($value); |
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if (!in_array($dataType, ["string", "double", "boolean", "integer"])) { |
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$dataType = "serializable"; |
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} |
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$dataType = ucfirst($dataType); |
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if ($dataType!='Null') { |
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$value = call_user_func([$this, "convert{$dataType}"], $value); |
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$value = "{$this->addSlashes($key)}={$value}"; |
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} |
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}); |
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$elements = array_filter($elements); |
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return implode(",", $elements); |
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} |
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protected function convertSerializable($value) |
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{ |
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return "{$value}"; |
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} |
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protected function convertString($value) |
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{ |
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return "\"{$value}\""; |
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} |
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protected function convertInteger($value) |
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{ |
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return "{$value}i" ; |
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} |
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protected function convertDouble($value) |
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{ |
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return $value; |
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} |
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7 |
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protected function convertBoolean($value) |
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{ |
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return (($value) ? "true" : "false"); |
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} |
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/** |
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* Returns strings with space, comma, or equals sign characters backslashed per Influx write protocol syntax |
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* |
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* @param string $value |
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* @return string |
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*/ |
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private function addSlashes($value) |
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{ |
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return str_replace([ |
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' ', |
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',', |
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'=' |
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], [ |
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'\ ', |
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'\,', |
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'\=' |
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], $value); |
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} |
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} |
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corley /
influxdb-php-sdk
