84 lines
2.2 KiB
PHP
84 lines
2.2 KiB
PHP
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<?php namespace fox\prometheus;
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/**
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*
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* Class fox\prometheus\item
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*
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* @copyright MX STAR LLC 2018-2022
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* @version 4.0.0
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* @author Pavel Dmitriev
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* @license GPLv3
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*
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**/
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use fox\stringExportable;
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use fox\stringImportable;
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use fox\foxException;
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class item implements stringExportable,stringImportable {
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public $key;
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public $value;
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public array $metaData=[];
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public function __construct($key=null, $val=null, $meta=null) {
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$this->key=$key;
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$this->value=$val;
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if ($meta) { $this->metaData=$meta; }
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}
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public function __toString(): string
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{
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return $this->key.(empty($this->metaData)?"":"{".$this->encodeMetadata()."}")." ".$this->value;
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}
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protected function encodeMetadata() : string {
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$rv="";
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foreach ($this->metaData as $key=>$val) {
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$rv.=(empty($rv)?"":",").$key."=\"".$val."\"";
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}
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return $rv;
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}
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public static function fromString($val) {
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$item=new static();
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$item->__fromString($val);
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return $item;
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}
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public function __fromString($val)
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{
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$ref=[];
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if (preg_match("/^([^# ][^ {]*)(\{([^ }]*)\}){0,1} (.*)$/", $val, $ref)) {
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$this->key=$ref[1];
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if (is_numeric($ref[4])) {
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if ((int)$ref[4]==(float)$ref[4]) {
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$this->value=(int)$ref[4];
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} else {
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$this->value=(float)$ref[4];
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}
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} else {
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$this->value=$ref[4];
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}
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if ($ref[3] !== "") {
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$this->metaData=[];
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foreach(explode(",", $ref[3]) as $kvp) {
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$kvx=[];
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if (preg_match("/([^=]*)=(.*)$/", $kvp,$kvx)) {
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$xVal=preg_replace('/^\"/', '', preg_replace('/\"$/','',$kvx[2]));
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$this->metaData[$kvx[1]]=$xVal;
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}
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}
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}
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} else {
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throw new foxException("Unable to parce string ".$val." in ".__CLASS__."->__fromString");
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}
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}
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public function isNull(): bool
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{
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return ($this->value === null || $this->value === false || $this->value === "");
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}
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}
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?>
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