/**
* Set the maximum reference depth
* @param $depth
*/
public function setMaxDepth($depth)
{
if (!is_numeric($depth)) {
throw new \InvalidArgumentException('Expected depth to be numeric');
}
self::$maxDepth = $depth;
}
/**
* Resolves all $ref references for a given schema. Recurses through
* the object to resolve references of any child schemas.
*
* The 'format' property is omitted because it isn't required for
* validation. Theoretically, this class could be extended to look
* for URIs in formats: "These custom formats MAY be expressed as
* an URI, and this URI MAY reference a schema of that format."
*
* The 'id' property is not filled in, but that could be made to happen.
*
* @param object $schema JSON Schema to flesh out
* @param string $sourceUri URI where this schema was located
*/
public function resolve($schema, $sourceUri = null)
{
if (self::$depth > self::$maxDepth) {
self::$depth = 0;
throw new JsonDecodingException(JSON_ERROR_DEPTH);
}
++self::$depth;
if (!is_object($schema)) {
--self::$depth;
return;
}
if (null === $sourceUri && !empty($schema->id)) {
$sourceUri = $schema->id;
}
if (null === $this->rootSchema) {
$this->rootSchema = $schema;
}
// Resolve $ref first
$this->resolveRef($schema, $sourceUri);
// These properties are just schemas
// eg. items can be a schema or an array of schemas
foreach (array('additionalItems', 'additionalProperties', 'extends', 'items') as $propertyName) {
$this->resolveProperty($schema, $propertyName, $sourceUri);
}
// These are all potentially arrays that contain schema objects
// eg. type can be a value or an array of values/schemas
// eg. items can be a schema or an array of schemas
foreach (array('disallow', 'extends', 'items', 'type', 'allOf', 'anyOf', 'oneOf') as $propertyName) {
$this->resolveArrayOfSchemas($schema, $propertyName, $sourceUri);
}
// These are all objects containing properties whose values are schemas
foreach (array('dependencies', 'patternProperties', 'properties') as $propertyName) {
$this->resolveObjectOfSchemas($schema, $propertyName, $sourceUri);
}
--self::$depth;
}
public function setMaxDepth($maxDepth)
{
self::$maxDepth = $maxDepth;
}
