75 lines
2.0 KiB
PHP
75 lines
2.0 KiB
PHP
<?php
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/*
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* This file is part of Composer.
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*
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* (c) Nils Adermann <naderman@naderman.de>
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* Jordi Boggiano <j.boggiano@seld.be>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Composer\Package;
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use Composer\Package\LinkConstraint\LinkConstraintInterface;
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/**
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* Represents a link between two packages, represented by their names
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*
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* @author Nils Adermann <naderman@naderman.de>
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*/
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class Link
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{
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protected $source;
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protected $target;
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protected $constraint;
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protected $description;
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/**
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* Creates a new package link.
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*
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* @param string $source
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* @param string $target
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* @param LinkConstraintInterface $constraint Constraint applying to the target of this link
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* @param string $description Used to create a descriptive string representation
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*/
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public function __construct($source, $target, LinkConstraintInterface $constraint = null, $description = 'relates to', $prettyConstraint = null)
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{
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$this->source = strtolower($source);
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$this->target = strtolower($target);
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$this->constraint = $constraint;
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$this->description = $description;
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$this->prettyConstraint = $prettyConstraint;
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}
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public function getSource()
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{
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return $this->source;
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}
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public function getTarget()
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{
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return $this->target;
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}
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public function getConstraint()
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{
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return $this->constraint;
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}
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public function getPrettyConstraint()
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{
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if (null === $this->prettyConstraint) {
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throw new \UnexpectedValueException(sprintf('Link %s has been misconfigured and had no prettyConstraint given.', $this));
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}
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return $this->prettyConstraint;
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}
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public function __toString()
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{
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return $this->source.' '.$this->description.' '.$this->target.' ('.$this->constraint.')';
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}
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}
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