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<?php
namespace Mediawiki\DataModel;
use InvalidArgumentException;
use JsonSerializable;
use RuntimeException;
/**
* Represents a collection of Log classes
* @author Addshore
*/
class LogList implements JsonSerializable {
/**
* @var Log[]
*/
private $logs;
/**
* @param Log[] $logs
*/
public function __construct( $logs = array() ) {
$this->logs = array();
$this->addLogs( $logs );
}
/**
* @param Log[]|LogList $logs
*
* @throws InvalidArgumentException
*/
public function addLogs( $logs ) {
if( !is_array( $logs ) && !$logs instanceof LogList ) {
throw new InvalidArgumentException( '$logs needs to either be an array or a LogList object' );
}
if( $logs instanceof LogList ) {
$logs = $logs->toArray();
}
foreach( $logs as $log ) {
$this->addLog( $log );
}
}
/**
* @param Log $log
*/
public function addLog( Log $log ) {
$this->logs[$log->getId()] = $log;
}
/**
* @param int $id
*
* @return bool
*/
public function hasLogWithId( $id ){
return array_key_exists( $id, $this->logs );
}
/**
* @param Log $log
*
* @return bool
*/
public function hasLog( Log $log ){
return array_key_exists( $log->getId(), $this->logs );
}
/**
* @return Log|null Log or null if there is no log
*/
public function getLatest() {
if( empty( $this->logs ) ) {
return null;
}
return $this->logs[ max( array_keys( $this->logs ) ) ];
}
/**
* @since 0.6
* @return Log|null Log or null if there is no log
*/
public function getOldest() {
if( empty( $this->logs ) ) {
return null;
}
return $this->logs[ min( array_keys( $this->logs ) ) ];
}
/**
* @since 0.6
* @return bool
*/
public function isEmpty() {
return empty( $this->logs );
}
/**
* @param int $id
*
* @throws RuntimeException
* @return Log
*/
public function get( $id ){
if( $this->hasLogWithId( $id ) ){
return $this->logs[$id];
}
throw new RuntimeException( 'No such Log loaded in LogList object' );
}
/**
* @return Log[]
*/
public function toArray() {
return $this->logs;
}
/**
* @link http://php.net/manual/en/jsonserializable.jsonserialize.php
*/
public function jsonSerialize() {
return $this->toArray();
}
/**
* @param array $json
*
* @return self
*/
public static function jsonDeserialize( $json ) {
$self = new LogList();
foreach ( $json as $logJson ) {
$self->addLog( Log::jsonDeserialize( $logJson ) );
}
return $self;
}
}
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