/**
* @param AbstractSchema $schema
*
* @throws ConfigurationException
*/
public function validate(AbstractSchema $schema)
{
if (!$schema->getQueryType()->hasFields()) {
throw new ConfigurationException('Schema has to have fields');
}
$this->configValidator = ConfigValidator::getInstance();
foreach ($schema->getQueryType()->getConfig()->getFields() as $field) {
$this->configValidator->assertValidConfig($field->getConfig());
if ($field->getType() instanceof AbstractObjectType) {
$this->assertInterfaceImplementationCorrect($field->getType());
}
}
}
protected function introduceIntrospectionFields()
{
$schemaField = new SchemaField();
$this->schema->addQueryField($schemaField);
$this->schema->addQueryField(new TypeDefinitionField());
}
/**
* @param AbstractSchema|Field $value
*
* @return string|null
*
* //todo implement value printer
*/
public function resolveDefaultValue($value)
{
$resolvedValue = $value->getConfig()->getDefaultValue();
return $resolvedValue === null ? $resolvedValue : json_encode($resolvedValue);
}