Aaron Schulz has uploaded a new change for review.
https://gerrit.wikimedia.org/r/310511
Change subject: Exception cleanups for LoadBalancer
..
Exception cleanups for LoadBalancer
* Make the error message itself be dumb/raw.
* Make the exception exposer show the same GUI message.
* Remove overzelous wgLang check in MWExceptionExposer.
Change-Id: If3b3cc785ea3080e4975efe33b3c2cf304d6
---
M autoload.php
M includes/db/DatabaseError.php
M includes/db/loadbalancer/LoadBalancer.php
M includes/exception/MWExceptionExposer.php
4 files changed, 41 insertions(+), 11 deletions(-)
git pull ssh://gerrit.wikimedia.org:29418/mediawiki/core
refs/changes/11/310511/1
diff --git a/autoload.php b/autoload.php
index b4860c9..f71e9f4 100644
--- a/autoload.php
+++ b/autoload.php
@@ -311,6 +311,7 @@
'DBReplicationWaitError' => __DIR__ . '/includes/db/DatabaseError.php',
'DBSiteStore' => __DIR__ . '/includes/site/DBSiteStore.php',
'DBTransactionError' => __DIR__ . '/includes/db/DatabaseError.php',
+ 'DBTransactionSizeError' => __DIR__ . '/includes/db/DatabaseError.php',
'DBUnexpectedError' => __DIR__ . '/includes/db/DatabaseError.php',
'DataUpdate' => __DIR__ . '/includes/deferred/DataUpdate.php',
'Database' => __DIR__ . '/includes/db/Database.php',
diff --git a/includes/db/DatabaseError.php b/includes/db/DatabaseError.php
index 2242c5a..38887cf 100644
--- a/includes/db/DatabaseError.php
+++ b/includes/db/DatabaseError.php
@@ -26,7 +26,7 @@
* @ingroup Database
*/
class DBError extends Exception {
- /** @var IDatabase */
+ /** @var IDatabase|null */
public $db;
/**
@@ -47,7 +47,22 @@
* @ingroup Database
* @since 1.23
*/
-class DBExpectedError extends DBError {
+class DBExpectedError extends DBError implements MessageSpecifier {
+ /** @var string[] Message parameters */
+ protected $params;
+
+ function __construct( IDatabase $db = null, $error, array $params = []
) {
+ parent::__construct( $db, $error );
+ $this->params = $params;
+ }
+
+ public function getKey() {
+ return 'databaseerror-text';
+ }
+
+ public function getParams() {
+ return $this->params;
+ }
}
/**
@@ -124,6 +139,15 @@
}
/**
+ * @ingroup Database
+ */
+class DBTransactionSizeError extends DBTransactionError {
+ function getKey() {
+ return 'transaction-duration-limit-exceeded';
+ }
+}
+
+/**
* Exception class for replica DB wait timeouts
* @ingroup Database
*/
diff --git a/includes/db/loadbalancer/LoadBalancer.php
b/includes/db/loadbalancer/LoadBalancer.php
index ce1899f..9456e66 100644
--- a/includes/db/loadbalancer/LoadBalancer.php
+++ b/includes/db/loadbalancer/LoadBalancer.php
@@ -785,7 +785,8 @@
}
if ( !is_array( $server ) ) {
- throw new InvalidArgumentException( 'You must update
your load-balancing configuration. ' .
+ throw new InvalidArgumentException(
+ 'You must update your load-balancing
configuration. ' .
'See DefaultSettings.php entry for
$wgDBservers.' );
}
@@ -1035,10 +1036,10 @@
// If this fails, then all DB transactions will be
rollback back together.
$time = $conn->pendingWriteQueryDuration(
$conn::ESTIMATE_DB_APPLY );
if ( $limit > 0 && $time > $limit ) {
- throw new DBTransactionError(
+ throw new DBTransactionSizeError(
$conn,
"Transaction spent $time second(s) in
writes, exceeding the $limit limit.",
- wfMessage(
'transaction-duration-limit-exceeded', $time, $limit )->text()
+ [ $time, $limit ]
);
}
// If a connection sits idle while slow queries execute
on another, that connection
diff --git a/includes/exception/MWExceptionExposer.php
b/includes/exception/MWExceptionExposer.php
index 4560977..63feda3 100644
--- a/includes/exception/MWExceptionExposer.php
+++ b/includes/exception/MWExceptionExposer.php
@@ -134,15 +134,13 @@
*/
private static function useOutputPage( Exception $e ) {
// Can the extension use the Message class/wfMessage to get
i18n-ed messages?
- $useMessageCache = ( $GLOBALS['wgLang'] instanceof Language );
foreach ( $e->getTrace() as $frame ) {
if ( isset( $frame['class'] ) && $frame['class'] ===
'LocalisationCache' ) {
- $useMessageCache = false;
+
