/**
* Negotiate the PSR-7 request using the given configuration.
*
* If the negotiation fails a NegotiationException will be thrown. If the
* accept header is empty the default value (with highest priority) will
* be returned (if required by argument).
*
* The return value will never be <code>null</code>.
*
* @param request ServerRequestInterface the PSR-7 request
* @param $conf Configuration negotiation configuration
* @param $supplyDefault bool whether default value is supplied
* @return BaseAccept negotiation result
* @throws NegotiationException negotiation failed
*/
public function negotiate(ServerRequestInterface $request, Configuration $conf, $supplyDefault)
{
$headerLine = $request->getHeaderLine($conf->getHeaderName());
if (empty($headerLine)) {
// accept header is empty
$result = $this->handleNoInput($conf, $supplyDefault);
} else {
// accept header is available
$result = $this->handleInput($conf, $headerLine);
}
if (!is_null($result)) {
// negotiation result available
return $result;
}
throw new NegotiationException('accept header refused');
}
function testGetters()
{
$headerName = 'the name';
$negotiator = new LanguageNegotiator();
$priorities = ['one', 'two'];
$acceptFactory = function () {
};
$c = new Configuration();
$c->setHeaderName($headerName);
$c->setPriorities($priorities);
$c->setNegotiator($negotiator);
$c->setAcceptFactory($acceptFactory);
$this->assertSame($headerName, $c->getHeaderName());
$this->assertSame($negotiator, $c->getNegotiator());
$this->assertSame($priorities, $c->getPriorities());
}
