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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;
/**
* The NumberConstraint Constraints, validates an number against a given schema
*
* @author Robert Schönthal <seroscho@googlemail.com>
* @author Bruno Prieto Reis <bruno.p.reis@gmail.com>
*/
class NumberConstraint extends Constraint
{
/**
* {@inheritDoc}
*/
public function check($element, $schema = null, $path = null, $i = null)
{
// Verify minimum
if (isset($schema->exclusiveMinimum)) {
if (isset($schema->minimum)) {
if ($schema->exclusiveMinimum && $element <= $schema->minimum) {
$this->addError($path, "Must have a minimum value of " . $schema->minimum, 'exclusiveMinimum', array('minimum' => $schema->minimum,));
} else if ($element < $schema->minimum) {
$this->addError($path, "Must have a minimum value of " . $schema->minimum, 'minimum', array('minimum' => $schema->minimum,));
}
} else {
$this->addError($path, "Use of exclusiveMinimum requires presence of minimum", 'missingMinimum');
}
} else if (isset($schema->minimum) && $element < $schema->minimum) {
$this->addError($path, "Must have a minimum value of " . $schema->minimum, 'minimum', array('minimum' => $schema->minimum,));
}
// Verify maximum
if (isset($schema->exclusiveMaximum)) {
if (isset($schema->maximum)) {
if ($schema->exclusiveMaximum && $element >= $schema->maximum) {
$this->addError($path, "Must have a maximum value of " . $schema->maximum, 'exclusiveMaximum', array('maximum' => $schema->maximum,));
} else if ($element > $schema->maximum) {
$this->addError($path, "Must have a maximum value of " . $schema->maximum, 'maximum', array('maximum' => $schema->maximum,));
}
} else {
$this->addError($path, "Use of exclusiveMaximum requires presence of maximum", 'missingMinimum');
}
} else if (isset($schema->maximum) && $element > $schema->maximum) {
$this->addError($path, "Must have a maximum value of " . $schema->maximum, 'maximum', array('maximum' => $schema->maximum,));
}
// Verify divisibleBy - Draft v3
if (isset($schema->divisibleBy) && $this->fmod($element, $schema->divisibleBy) != 0) {
$this->addError($path, "Is not divisible by " . $schema->divisibleBy, 'divisibleBy', array('divisibleBy' => $schema->divisibleBy,));
}
// Verify multipleOf - Draft v4
if (isset($schema->multipleOf) && $this->fmod($element, $schema->multipleOf) != 0) {
$this->addError($path, "Must be a multiple of " . $schema->multipleOf, 'multipleOf', array('multipleOf' => $schema->multipleOf,));
}
$this->checkFormat($element, $schema, $path, $i);
}
private function fmod($number1, $number2)
{
$modulus = fmod($number1, $number2);
$precision = abs(0.0000000001);
$diff = (float)($modulus - $number2);
if (-$precision < $diff && $diff < $precision) {
return 0.0;
}
$decimals1 = mb_strpos($number1, ".") ? mb_strlen($number1) - mb_strpos($number1, ".") - 1 : 0;
$decimals2 = mb_strpos($number2, ".") ? mb_strlen($number2) - mb_strpos($number2, ".") - 1 : 0;
return (float)round($modulus, max($decimals1, $decimals2));
}
}