Move pieces related to ParserOutput expiry into a new CacheTime class.

This commit is contained in:
Platonides 2010-08-09 14:58:08 +00:00
parent cc9f81ed94
commit 0825b757f6
2 changed files with 92 additions and 80 deletions

View file

@ -27,6 +27,7 @@ $wgAutoloadLocalClasses = array(
'BagOStuff' => 'includes/BagOStuff.php',
'Block' => 'includes/Block.php',
'CacheDependency' => 'includes/CacheDependency.php',
'CacheTime' => 'includes/parser/ParserOutput.php',
'Category' => 'includes/Category.php',
'Categoryfinder' => 'includes/Categoryfinder.php',
'CategoryPage' => 'includes/CategoryPage.php',

View file

@ -3,16 +3,102 @@
* @todo document
* @ingroup Parser
*/
class ParserOutput
class CacheTime {
var $mVersion = Parser::VERSION, # Compatibility check
$mCacheTime = '', # Time when this object was generated, or -1 for uncacheable. Used in ParserCache.
$mCacheExpiry = null, # Seconds after which the object should expire, use 0 for uncachable. Used in ParserCache.
$mContainsOldMagic; # Boolean variable indicating if the input contained variables like {{CURRENTDAY}}
function getCacheTime() { return $this->mCacheTime; }
function containsOldMagic() { return $this->mContainsOldMagic; }
function setContainsOldMagic( $com ) { return wfSetVar( $this->mContainsOldMagic, $com ); }
/**
* setCacheTime() sets the timestamp expressing when the page has been rendered.
* This doesn not control expiry, see updateCacheExpiry() for that!
*/
function setCacheTime( $t ) { return wfSetVar( $this->mCacheTime, $t ); }
/**
* Sets the number of seconds after which this object should expire.
* This value is used with the ParserCache.
* If called with a value greater than the value provided at any previous call,
* the new call has no effect. The value returned by getCacheExpiry is smaller
* or equal to the smallest number that was provided as an argument to
* updateCacheExpiry().
*/
function updateCacheExpiry( $seconds ) {
$seconds = (int)$seconds;
if ( $this->mCacheExpiry === null || $this->mCacheExpiry > $seconds )
$this->mCacheExpiry = $seconds;
// hack: set old-style marker for uncacheable entries.
if ( $this->mCacheExpiry !== null && $this->mCacheExpiry <= 0 )
$this->mCacheTime = -1;
}
/**
* Returns the number of seconds after which this object should expire.
* This method is used by ParserCache to determine how long the ParserOutput can be cached.
* The timestamp of expiry can be calculated by adding getCacheExpiry() to getCacheTime().
* The value returned by getCacheExpiry is smaller or equal to the smallest number
* that was provided to a call of updateCacheExpiry(), and smaller or equal to the
* value of $wgParserCacheExpireTime.
*/
function getCacheExpiry() {
global $wgParserCacheExpireTime;
if ( $this->mCacheTime < 0 ) return 0; // old-style marker for "not cachable"
$expire = $this->mCacheExpiry;
if ( $expire === null )
$expire = $wgParserCacheExpireTime;
else
$expire = min( $expire, $wgParserCacheExpireTime );
if( $this->containsOldMagic() ) { //compatibility hack
$expire = min( $expire, 3600 ); # 1 hour
}
if ( $expire <= 0 ) return 0; // not cachable
else return $expire;
}
function isCacheable() {
return $this->getCacheExpiry() > 0;
}
/**
* Return true if this cached output object predates the global or
* per-article cache invalidation timestamps, or if it comes from
* an incompatible older version.
*
* @param $touched String: the affected article's last touched timestamp
* @return Boolean
*/
public function expired( $touched ) {
global $wgCacheEpoch;
return !$this->isCacheable() || // parser says it's uncacheable
$this->getCacheTime() < $touched ||
$this->getCacheTime() <= $wgCacheEpoch ||
$this->getCacheTime() < wfTimestamp( TS_MW, time() - $this->getCacheExpiry() ) || // expiry period has passed
!isset( $this->mVersion ) ||
version_compare( $this->mVersion, Parser::VERSION, "lt" );
}
}
class ParserOutput extends CacheTime
{
var $mText, # The output text
$mLanguageLinks, # List of the full text of language links, in the order they appear
$mCategories, # Map of category names to sort keys
$mContainsOldMagic, # Boolean variable indicating if the input contained variables like {{CURRENTDAY}}
$mTitleText, # title text of the chosen language variant
$mCacheTime = '', # Time when this object was generated, or -1 for uncacheable. Used in ParserCache.
$mCacheExpiry = null, # Seconds after which the object should expire, use 0 for uncachable. Used in ParserCache.
$mVersion = Parser::VERSION, # Compatibility check
$mLinks = array(), # 2-D map of NS/DBK to ID for the links in the document. ID=zero for broken.
$mTemplates = array(), # 2-D map of NS/DBK to ID for the template references. ID=zero for broken.
$mTemplateIds = array(), # 2-D map of NS/DBK to rev ID for the template references. ID=zero for broken.
@ -45,7 +131,6 @@ class ParserOutput
function getInterwikiLinks() { return $this->mInterwikiLinks; }
function getCategoryLinks() { return array_keys( $this->mCategories ); }
function &getCategories() { return $this->mCategories; }
function getCacheTime() { return $this->mCacheTime; }
function getTitleText() { return $this->mTitleText; }
function getSections() { return $this->mSections; }
function &getLinks() { return $this->mLinks; }
@ -60,71 +145,15 @@ class ParserOutput
function getIndexPolicy() { return $this->mIndexPolicy; }
function getTOCHTML() { return $this->mTOCHTML; }
function containsOldMagic() { return $this->mContainsOldMagic; }
function setText( $text ) { return wfSetVar( $this->mText, $text ); }
function setLanguageLinks( $ll ) { return wfSetVar( $this->mLanguageLinks, $ll ); }
function setCategoryLinks( $cl ) { return wfSetVar( $this->mCategories, $cl ); }
function setContainsOldMagic( $com ) { return wfSetVar( $this->mContainsOldMagic, $com ); }
/** setCacheTime() sets the timestamp expressing when the page has been rendered.
* This doesn not control expiry, see updateCacheExpiry() for that!
*/
function setCacheTime( $t ) { return wfSetVar( $this->mCacheTime, $t ); }
function setTitleText( $t ) { return wfSetVar( $this->mTitleText, $t ); }
function setSections( $toc ) { return wfSetVar( $this->mSections, $toc ); }
function setIndexPolicy( $policy ) { return wfSetVar( $this->mIndexPolicy, $policy ); }
function setTOCHTML( $tochtml ) { return wfSetVar( $this->mTOCHTML, $tochtml ); }
/** Sets the number of seconds after which this object should expire.
* This value is used with the ParserCache.
* If called with a value greater than the value provided at any previous call,
* the new call has no effect. The value returned by getCacheExpiry is smaller
* or equal to the smallest number that was provided as an argument to
* updateCacheExpiry().
*/
function updateCacheExpiry( $seconds ) {
$seconds = (int)$seconds;
if ( $this->mCacheExpiry === null || $this->mCacheExpiry > $seconds )
$this->mCacheExpiry = $seconds;
// hack: set old-style marker for uncacheable entries.
if ( $this->mCacheExpiry !== null && $this->mCacheExpiry <= 0 )
$this->mCacheTime = -1;
}
/** Returns the number of seconds after which this object should expire.
* This method is used by ParserCache to determine how long the ParserOutput can be cached.
* The timestamp of expiry can be calculated by adding getCacheExpiry() to getCacheTime().
* The value returned by getCacheExpiry is smaller or equal to the smallest number
* that was provided to a call of updateCacheExpiry(), and smaller or equal to the
* value of $wgParserCacheExpireTime.
*/
function getCacheExpiry() {
global $wgParserCacheExpireTime;
if ( $this->mCacheTime < 0 ) return 0; // old-style marker for "not cachable"
$expire = $this->mCacheExpiry;
if ( $expire === null )
$expire = $wgParserCacheExpireTime;
else
$expire = min( $expire, $wgParserCacheExpireTime );
if( $this->containsOldMagic() ) { //compatibility hack
$expire = min( $expire, 3600 ); # 1 hour
}
if ( $expire <= 0 ) return 0; // not cachable
else return $expire;
}
function isCacheable() {
return $this->getCacheExpiry() > 0;
}
function addCategory( $c, $sort ) { $this->mCategories[$c] = $sort; }
function addLanguageLink( $t ) { $this->mLanguageLinks[] = $t; }
function addWarning( $s ) { $this->mWarnings[$s] = 1; }
@ -219,24 +248,6 @@ class ParserOutput
$this->mInterwikiLinks[$prefix][$title->getDBkey()] = 1;
}
/**
* Return true if this cached output object predates the global or
* per-article cache invalidation timestamps, or if it comes from
* an incompatible older version.
*
* @param $touched String: the affected article's last touched timestamp
* @return Boolean
*/
public function expired( $touched ) {
global $wgCacheEpoch;
return !$this->isCacheable() || // parser says it's uncacheable
$this->getCacheTime() < $touched ||
$this->getCacheTime() <= $wgCacheEpoch ||
$this->getCacheTime() < wfTimestamp( TS_MW, time() - $this->getCacheExpiry() ) || // expiry period has passed
!isset( $this->mVersion ) ||
version_compare( $this->mVersion, Parser::VERSION, "lt" );
}
/**
* Add some text to the <head>.
* If $tag is set, the section with that tag will only be included once