AbstractNamespace.php

<?php

/*
 * © 2016 IRSTEA
 * Guillaume Perréal <guillaume.perreal@irstea.fr>
 * Tous droits réservés.
 */

namespace Irstea\PlantUmlBundle\Model;

use Irstea\PlantUmlBundle\Writer\WriterInterface;

/**
 * Description of Namespace
 *
 * @author Guillaume Perréal <guillaume.perreal@irstea.fr>
 */
abstract class AbstractNamespace implements UmlComponentInterface, NamespaceInterface
{
    /**
     * @var UmlNodeInterface[]
     */
    private $nodes = [];

    /**
     * @var NamespaceInterface
     */
    private $children = [];

    /**
     *
     * @param UmlNodeInterface $node
     */
    public function addNode(UmlNodeInterface $node)
    {
        $this->nodes[] = $node;
        return $this;
    }

    /**
     * @param type $namespaceName
     * @return NamespaceInterface
     */
    public function getNamespace($namespaceName)
    {
        $namespaceName = trim($namespaceName, '\\');
        if (!$namespaceName) {
            return $this;
        }
        @list($head, $tail) = explode('\\', $namespaceName, 2);
        if (!isset($this->children[$head])) {
            $this->children[$head] = new Namespace_($this, $head);
        }
        if (empty($tail)) {
            return $this->children[$head];
        }
        return $this->children[$head]->getNamespace($tail);
    }

    /**
     * @param WriterInterface $writer
     * @return self
     */
    protected function outputNodesTo(WriterInterface $writer)
    {
        foreach ($this->nodes as $node) {
            $node->outputTo($writer);
        }
        return $this;
    }