1: <?php
 2: 
 3: namespace Guzzle\Service\Command\LocationVisitor\Request;
 4: 
 5: use Guzzle\Common\Exception\InvalidArgumentException;
 6: use Guzzle\Http\Message\RequestInterface;
 7: use Guzzle\Service\Command\CommandInterface;
 8: use Guzzle\Service\Description\Parameter;
 9: 
10: /**
11:  * Visitor used to apply a parameter to a header value
12:  */
13: class HeaderVisitor extends AbstractRequestVisitor
14: {
15:     /**
16:      * {@inheritdoc}
17:      */
18:     public function visit(CommandInterface $command, RequestInterface $request, Parameter $param, $value)
19:     {
20:         $value = $param->filter($value);
21:         if ($param->getType() == 'object' && $param->getAdditionalProperties() instanceof Parameter) {
22:             $this->addPrefixedHeaders($request, $param, $value);
23:         } else {
24:             $request->setHeader($param->getWireName(), $value);
25:         }
26:     }
27: 
28:     /**
29:      * Add a prefixed array of headers to the request
30:      *
31:      * @param RequestInterface $request Request to update
32:      * @param Parameter        $param   Parameter object
33:      * @param array            $value   Header array to add
34:      *
35:      * @throws InvalidArgumentException
36:      */
37:     protected function addPrefixedHeaders(RequestInterface $request, Parameter $param, $value)
38:     {
39:         if (!is_array($value)) {
40:             throw new InvalidArgumentException('An array of mapped headers expected, but received a single value');
41:         }
42:         $prefix = $param->getSentAs();
43:         foreach ($value as $headerName => $headerValue) {
44:             $request->setHeader($prefix . $headerName, $headerValue);
45:         }
46:     }
47: }
48: