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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @package Zend_Stdlib
*/
namespace Zend\Stdlib;
use Traversable;
/**
* @category Zend
* @package Zend_Stdlib
*/
class Message implements MessageInterface
{
/**
* @var array
*/
protected $metadata = array();
/**
* @var string
*/
protected $content = '';
/**
* Set message metadata
*
* Non-destructive setting of message metadata; always adds to the metadata, never overwrites
* the entire metadata container.
*
* @param string|int|array|Traversable $spec
* @param mixed $value
* @throws Exception\InvalidArgumentException
* @return Message
*/
public function setMetadata($spec, $value = null)
{
if (is_scalar($spec)) {
$this->metadata[$spec] = $value;
return $this;
}
if (!is_array($spec) && !$spec instanceof Traversable) {
throw new Exception\InvalidArgumentException(sprintf(
'Expected a string, array, or Traversable argument in first position; received "%s"',
(is_object($spec) ? get_class($spec) : gettype($spec))
));
}
foreach ($spec as $key => $value) {
$this->metadata[$key] = $value;
}
return $this;
}
/**
* Retrieve all metadata or a single metadatum as specified by key
*
* @param null|string|int $key
* @param null|mixed $default
* @throws Exception\InvalidArgumentException
* @return mixed
*/
public function getMetadata($key = null, $default = null)
{
if (null === $key) {
return $this->metadata;
}
if (!is_scalar($key)) {
throw new Exception\InvalidArgumentException('Non-scalar argument provided for key');
}
if (array_key_exists($key, $this->metadata)) {
return $this->metadata[$key];
}
return $default;
}
/**
* Set message content
*
* @param mixed $value
* @return Message
*/
public function setContent($value)
{
$this->content = $value;
return $this;
}
/**
* Get message content
*
* @return mixed
*/
public function getContent()
{
return $this->content;
}
/**
* @return string
*/
public function toString()
{
$request = '';
foreach ($this->getMetadata() as $key => $value) {
$request .= sprintf(
"%s: %s\r\n",
(string) $key,
(string) $value
);
}
$request .= "\r\n" . $this->getContent();
return $request;
}
}
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