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<?php
/**
* Defines an interface for messages with additional machine-readable data for
* use by the API, and provides concrete implementations of that interface.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* Interface for messages with machine-readable data for use by the API
* @since 1.25
* @ingroup API
*/
interface IApiMessage extends MessageSpecifier {
/**
* Returns a machine-readable code for use by the API
*
* The message key is often sufficient, but sometimes there are multiple
* messages used for what is really the same underlying condition (e.g.
* badaccess-groups and badaccess-group0)
* @return string
*/
public function getApiCode();
/**
* Returns additional machine-readable data about the error condition
* @return array
*/
public function getApiData();
/**
* Sets the machine-readable code for use by the API
* @param string|null $code If null, the message key should be returned by self::getApiCode()
* @param array|null $data If non-null, passed to self::setApiData()
*/
public function setApiCode( $code, array $data = null );
/**
* Sets additional machine-readable data about the error condition
* @param array $data
*/
public function setApiData( array $data );
}
/**
* Extension of Message implementing IApiMessage
* @since 1.25
* @ingroup API
* @todo: Would be nice to use a Trait here to avoid code duplication
*/
class ApiMessage extends Message implements IApiMessage {
protected $apiCode = null;
protected $apiData = array();
/**
* Create an IApiMessage for the message
*
* This returns $msg if it's an IApiMessage, calls 'new ApiRawMessage' if
* $msg is a RawMessage, or calls 'new ApiMessage' in all other cases.
*
* @param Message|RawMessage|array|string $msg
* @param string|null $code
* @param array|null $data
* @return ApiMessage
*/
public static function create( $msg, $code = null, array $data = null ) {
if ( $msg instanceof IApiMessage ) {
return $msg;
} elseif ( $msg instanceof RawMessage ) {
return new ApiRawMessage( $msg, $code, $data );
} else {
return new ApiMessage( $msg, $code, $data );
}
}
/**
* @param Message|string|array $msg
* - Message: is cloned
* - array: first element is $key, rest are $params to Message::__construct
* - string: passed to Message::__construct
* @param string|null $code
* @param array|null $data
* @return ApiMessage
*/
public function __construct( $msg, $code = null, array $data = null ) {
if ( $msg instanceof Message ) {
foreach ( get_class_vars( get_class( $this ) ) as $key => $value ) {
if ( isset( $msg->$key ) ) {
$this->$key = $msg->$key;
}
}
} elseif ( is_array( $msg ) ) {
$key = array_shift( $msg );
parent::__construct( $key, $msg );
} else {
parent::__construct( $msg );
}
$this->apiCode = $code;
$this->apiData = (array)$data;
}
public function getApiCode() {
return $this->apiCode === null ? $this->getKey() : $this->apiCode;
}
public function setApiCode( $code, array $data = null ) {
$this->apiCode = $code;
if ( $data !== null ) {
$this->setApiData( $data );
}
}
public function getApiData() {
return $this->apiData;
}
public function setApiData( array $data ) {
$this->apiData = $data;
}
public function serialize() {
return serialize( array(
'parent' => parent::serialize(),
'apiCode' => $this->apiCode,
'apiData' => $this->apiData,
) );
}
public function unserialize( $serialized ) {
$data = unserialize( $serialized );
parent::unserialize( $data['parent'] );
$this->apiCode = $data['apiCode'];
$this->apiData = $data['apiData'];
}
}
/**
* Extension of RawMessage implementing IApiMessage
* @since 1.25
* @ingroup API
* @todo: Would be nice to use a Trait here to avoid code duplication
*/
class ApiRawMessage extends RawMessage implements IApiMessage {
protected $apiCode = null;
protected $apiData = array();
/**
* @param RawMessage|string|array $msg
* - RawMessage: is cloned
* - array: first element is $key, rest are $params to RawMessage::__construct
* - string: passed to RawMessage::__construct
* @param string|null $code
* @param array|null $data
* @return ApiMessage
*/
public function __construct( $msg, $code = null, array $data = null ) {
if ( $msg instanceof RawMessage ) {
foreach ( get_class_vars( get_class( $this ) ) as $key => $value ) {
if ( isset( $msg->$key ) ) {
$this->$key = $msg->$key;
}
}
} elseif ( is_array( $msg ) ) {
$key = array_shift( $msg );
parent::__construct( $key, $msg );
} else {
parent::__construct( $msg );
}
$this->apiCode = $code;
$this->apiData = (array)$data;
}
public function getApiCode() {
return $this->apiCode === null ? $this->getKey() : $this->apiCode;
}
public function setApiCode( $code, array $data = null ) {
$this->apiCode = $code;
if ( $data !== null ) {
$this->setApiData( $data );
}
}
public function getApiData() {
return $this->apiData;
}
public function setApiData( array $data ) {
$this->apiData = $data;
}
public function serialize() {
return serialize( array(
'parent' => parent::serialize(),
'apiCode' => $this->apiCode,
'apiData' => $this->apiData,
) );
}
public function unserialize( $serialized ) {
$data = unserialize( $serialized );
parent::unserialize( $data['parent'] );
$this->apiCode = $data['apiCode'];
$this->apiData = $data['apiData'];
}
}
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