Metaphore\Ttl

Complexity

Total Complexity

10

Size/Duplication

Total Lines	83
Duplicated Lines	0 %

Coupling/Cohesion

Components	2
Dependencies	0

Importance

Changes

0

6 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	12	3
A	getTtl()	0	4	1
A	getRealTtl()	0	5	1
A	getGraceTtl()	0	8	2
A	getLockTtl()	0	8	2
A	__toString()	0	4	1

<?php
namespace Metaphore;

/**
 * Time-to-live value object.
 */
class Ttl
{
    const DEFAULT_GRACE_TTL = 60;

    const DEFAULT_LOCK_TTL = 5;

    /*** @var int */
    protected $ttl;

    /*** @var int How long to serve stale content while new one is being generated */
    protected $graceTtl;

    /*** @var int How long to prevent other requests to start generating same content */
    protected $lockTtl;

    /**
     * @param int
     * @param int Grace period
     * @param int
     */
    public function __construct($ttl, $graceTtl = null, $lockTtl = null)
    {
        $this->ttl = (int)$ttl;

        if (isset($graceTtl)) {
            $this->graceTtl = (int)$graceTtl;
        }

        if (isset($lockTtl)) {
            $this->lockTtl = (int)$lockTtl;
        }
    }

    /**
     * @return int
     */
    public function getTtl()
    {
        return $this->ttl;
    }

    /**
     * Get time how log it's really cached in cache store.
     *
     * @return int
     */
    public function getRealTtl()
    {
        // $grace_ttl added, so stale result might be served if needed
        return ($this->getTtl() + $this->getGraceTtl());
    }

    /**
     * Gets grace period
     *
     * @return int
     */
    public function getGraceTtl()
    {
        if (!isset($this->graceTtl)) {
            $this->graceTtl = self::DEFAULT_GRACE_TTL;
        }

        return $this->graceTtl;
    }

    /**
     * @return int
     */
    public function getLockTtl()
    {
        if (!isset($this->lockTtl)) {
            $this->lockTtl = self::DEFAULT_LOCK_TTL;
        }

        return $this->lockTtl;
    }

    public function __toString()
    {
        return (string)$this->getTtl();
    }
}