Puli\Repository\ChangeStream\ChangeStream

Complexity

Total Complexity

6

Size/Duplication

Total Lines	46
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Test Coverage

Coverage

100%

Importance

Changes	3
Bugs	0	Features	1

2 Methods

Rating	Name	Duplication	Size	Complexity
A	log()	0	8	2
A	buildResourceStack()	0	15	4

<?php

/*
 * This file is part of the puli/repository package.
 *
 * (c) Bernhard Schussek <bschussek@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Puli\Repository\ChangeStream;

use Puli\Repository\Api\Resource\PuliResource;
use Puli\Repository\Api\ResourceRepository;

/**
 * Stream to track repositories changes and fetch previous versions of resources.
 *
 * @since  1.0
 *
 * @author Titouan Galopin <galopintitouan@gmail.com>
 */
class ChangeStream
{
    /**
     * @var array
     */
    private $stack = array();

    /**
     * Store a version of a resource in the ChangeStream to retrieve it if needed.
     *
     * @param string       $path
     * @param PuliResource $resource
     */
    public function log($path, PuliResource $resource)
    {
        if (!array_key_exists($path, $this->stack)) {
            $this->stack[$path] = array();
        }

        $this->stack[$path][] = serialize($resource);
    }

    /**
     * Create a stack of resources for the given path.
     *
     * @param ResourceRepository $repository
     * @param string             $path
     *
     * @return ResourceStack
     */
    public function buildResourceStack(ResourceRepository $repository, $path)
    {
        $stack = array();

        if (isset($this->stack[$path]) && is_array($this->stack[$path])) {
            foreach ($this->stack[$path] as $data) {
                $resource = unserialize($data);
                $resource->attachTo($repository, $path);

                $stack[] = $resource;
            }
        }

        return new ResourceStack($stack);
    }
}