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<?php
/*
* This file is part of the JsonSchema package.
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace JsonSchema\Constraints;
use JsonSchema\Exception\InvalidArgumentException;
use JsonSchema\Uri\UriRetriever;
use JsonSchema\Validator;
/**
* Factory for centralize constraint initialization.
*/
class Factory
{
/**
* @var UriRetriever $uriRetriever
*/
protected $uriRetriever;
/**
* @var array $constraintMap
*/
protected $constraintMap = array(
'array' => 'JsonSchema\Constraints\CollectionConstraint',
'collection' => 'JsonSchema\Constraints\CollectionConstraint',
'object' => 'JsonSchema\Constraints\ObjectConstraint',
'type' => 'JsonSchema\Constraints\TypeConstraint',
'undefined' => 'JsonSchema\Constraints\UndefinedConstraint',
'string' => 'JsonSchema\Constraints\StringConstraint',
'number' => 'JsonSchema\Constraints\NumberConstraint',
'enum' => 'JsonSchema\Constraints\EnumConstraint',
'format' => 'JsonSchema\Constraints\FormatConstraint',
'schema' => 'JsonSchema\Constraints\SchemaConstraint',
'validator' => 'JsonSchema\Validator',
);
/**
* @param UriRetriever $uriRetriever
*/
public function __construct(UriRetriever $uriRetriever = null)
{
if (!$uriRetriever) {
$uriRetriever = new UriRetriever();
}
$this->uriRetriever = $uriRetriever;
}
/**
* @return UriRetriever
*/
public function getUriRetriever()
{
return $this->uriRetriever;
}
/**
* @param string $name
* @param string $class
* @return Factory
*/
public function setConstraintClass($name, $class)
{
// Ensure class exists
if (!class_exists($class)) {
throw new InvalidArgumentException('Unknown constraint ' . $name);
}
// Ensure class is appropriate
if (!in_array('JsonSchema\Constraints\ConstraintInterface', class_implements($class))) {
throw new InvalidArgumentException('Invalid class ' . $name);
}
$this->constraintMap[$name] = $class;
return $this;
}
/**
* Create a constraint instance for the given constraint name.
*
* @param string $constraintName
* @return ConstraintInterface|ObjectConstraint
* @throws InvalidArgumentException if is not possible create the constraint instance.
*/
public function createInstanceFor($constraintName)
{
if (array_key_exists($constraintName, $this->constraintMap)) {
return new $this->constraintMap[$constraintName](Constraint::CHECK_MODE_NORMAL, $this->uriRetriever, $this);
}
throw new InvalidArgumentException('Unknown constraint ' . $constraintName);
}
}
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