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Break up stream code to use separate notice stream classes

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Rearchitect (again!) notice stream code to delegate different functionality up and down the stack.

Now, different classes implement NoticeStream.
This commit is contained in:
Evan Prodromou 2011-03-24 18:04:19 -04:00
parent e0cccfc40d
commit 44bcc942b8
21 changed files with 816 additions and 524 deletions
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68
classes/Fave.php
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@ -79,82 +79,18 @@ class Fave extends Memcached_DataObject
function stream($user_id, $offset=0, $limit=NOTICES_PER_PAGE, $own=false, $since_id=0, $max_id=0)
{
$stream = new NoticeStream(array('Fave', '_streamDirect'),
array($user_id, $own),
($own) ? 'fave:ids_by_user_own:'.$user_id :
'fave:ids_by_user:'.$user_id);
$stream = new FaveNoticeStream($user_id, $own);
return $stream->getNotices($offset, $limit, $since_id, $max_id);
}
function idStream($user_id, $offset=0, $limit=NOTICES_PER_PAGE, $own=false, $since_id=0, $max_id=0)
{
$stream = new NoticeStream(array('Fave', '_streamDirect'),
array($user_id, $own),
($own) ? 'fave:ids_by_user_own:'.$user_id :
'fave:ids_by_user:'.$user_id);
$stream = new FaveNoticeStream($user_id, $own);
return $stream->getNoticeIds($offset, $limit, $since_id, $max_id);
}
/**
* Note that the sorting for this is by order of *fave* not order of *notice*.
*
* @fixme add since_id, max_id support?
*
* @param <type> $user_id
* @param <type> $own
* @param <type> $offset
* @param <type> $limit
* @param <type> $since_id
* @param <type> $max_id
* @return <type>
*/
function _streamDirect($user_id, $own, $offset, $limit, $since_id, $max_id)
{
$fav = new Fave();
$qry = null;
if ($own) {
$qry = 'SELECT fave.* FROM fave ';
$qry .= 'WHERE fave.user_id = ' . $user_id . ' ';
} else {
$qry = 'SELECT fave.* FROM fave ';
$qry .= 'INNER JOIN notice ON fave.notice_id = notice.id ';
$qry .= 'WHERE fave.user_id = ' . $user_id . ' ';
$qry .= 'AND notice.is_local != ' . Notice::GATEWAY . ' ';
}
if ($since_id != 0) {
$qry .= 'AND notice_id > ' . $since_id . ' ';
}
if ($max_id != 0) {
$qry .= 'AND notice_id <= ' . $max_id . ' ';
}
// NOTE: we sort by fave time, not by notice time!
$qry .= 'ORDER BY modified DESC ';
if (!is_null($offset)) {
$qry .= "LIMIT $limit OFFSET $offset";
}
$fav->query($qry);
$ids = array();
while ($fav->fetch()) {
$ids[] = $fav->notice_id;
}
$fav->free();
unset($fav);
return $ids;
}
function asActivity()
{
$notice = Notice::staticGet('id', $this->notice_id);

45
classes/File.php
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@ -449,53 +449,10 @@ class File extends Memcached_DataObject
function stream($offset=0, $limit=NOTICES_PER_PAGE, $since_id=0, $max_id=0)
{
$stream = new NoticeStream(array($this, '_streamDirect'),
array(),
'file:notice-ids:'.$this->url);
$stream = new FileNoticeStream($this);
return $stream->getNotices($offset, $limit, $since_id, $max_id);
}
/**
* Stream of notices linking to this URL
*
* @param integer $offset Offset to show; default is 0
* @param integer $limit Limit of notices to show
* @param integer $since_id Since this notice
* @param integer $max_id Before this notice
*
* @return array ids of notices that link to this file
*/
function _streamDirect($offset, $limit, $since_id, $max_id)
{
$f2p = new File_to_post();
$f2p->selectAdd();
$f2p->selectAdd('post_id');
$f2p->file_id = $this->id;
Notice::addWhereSinceId($f2p, $since_id, 'post_id', 'modified');
Notice::addWhereMaxId($f2p, $max_id, 'post_id', 'modified');
$f2p->orderBy('modified DESC, post_id DESC');
if (!is_null($offset)) {
$f2p->limit($offset, $limit);
}
$ids = array();
if ($f2p->find()) {
while ($f2p->fetch()) {
$ids[] = $f2p->post_id;
}
}
return $ids;
}
function noticeCount()
{
$cacheKey = sprintf('file:notice-count:%d', $this->id);

82
classes/Notice.php
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@ -45,7 +45,7 @@ require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
/* We keep 200 notices, the max number of notices available per API request,
* in the memcached cache. */
define('NOTICE_CACHE_WINDOW', NoticeStream::CACHE_WINDOW);
define('NOTICE_CACHE_WINDOW', CachingNoticeStream::CACHE_WINDOW);
define('MAX_BOXCARS', 128);
@ -548,7 +548,7 @@ class Notice extends Memcached_DataObject
if (empty($profile)) {
return false;
}
$notice = $profile->getNotices(0, NoticeStream::CACHE_WINDOW);
$notice = $profile->getNotices(0, CachingNoticeStream::CACHE_WINDOW);
if (!empty($notice)) {
$last = 0;
while ($notice->fetch()) {
@ -632,92 +632,18 @@ class Notice extends Memcached_DataObject
function publicStream($offset=0, $limit=20, $since_id=0, $max_id=0)
{
$stream = new NoticeStream(array('Notice', '_publicStreamDirect'),
array(),
'public');
$stream = new PublicNoticeStream();
return $stream->getNotices($offset, $limit, $since_id, $max_id);
}
function _publicStreamDirect($offset=0, $limit=20, $since_id=0, $max_id=0)
{
$notice = new Notice();
$notice->selectAdd(); // clears it
$notice->selectAdd('id');
$notice->orderBy('created DESC, id DESC');
if (!is_null($offset)) {
$notice->limit($offset, $limit);
}
if (common_config('public', 'localonly')) {
$notice->whereAdd('is_local = ' . Notice::LOCAL_PUBLIC);
} else {
// -1 == blacklisted, -2 == gateway (i.e. Twitter)
$notice->whereAdd('is_local !='. Notice::LOCAL_NONPUBLIC);
$notice->whereAdd('is_local !='. Notice::GATEWAY);
}
Notice::addWhereSinceId($notice, $since_id);
Notice::addWhereMaxId($notice, $max_id);
$ids = array();
if ($notice->find()) {
while ($notice->fetch()) {
$ids[] = $notice->id;
}
}
$notice->free();
$notice = NULL;
return $ids;
}
function conversationStream($id, $offset=0, $limit=20, $since_id=0, $max_id=0)
{
$stream = new NoticeStream(array('Notice', '_conversationStreamDirect'),
array($id),
'notice:conversation_ids:'.$id);
$stream = new ConversationNoticeStream($id);
return $stream->getNotices($offset, $limit, $since_id, $max_id);
}
function _conversationStreamDirect($id, $offset=0, $limit=20, $since_id=0, $max_id=0)
{
$notice = new Notice();
$notice->selectAdd(); // clears it
$notice->selectAdd('id');
$notice->conversation = $id;
$notice->orderBy('created DESC, id DESC');
if (!is_null($offset)) {
$notice->limit($offset, $limit);
}
Notice::addWhereSinceId($notice, $since_id);
Notice::addWhereMaxId($notice, $max_id);
$ids = array();
if ($notice->find()) {
while ($notice->fetch()) {
$ids[] = $notice->id;
}
}
$notice->free();
$notice = NULL;
return $ids;
}
/**
* Is this notice part of an active conversation?
*

33
classes/Notice_tag.php
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@ -38,42 +38,11 @@ class Notice_tag extends Memcached_DataObject
static function getStream($tag, $offset=0, $limit=20, $sinceId=0, $maxId=0)
{
$stream = new NoticeStream(array('Notice_tag', '_streamDirect'),
array($tag),
'notice_tag:notice_ids:' . Cache::keyize($tag));
$stream = new TagNoticeStream($tag);
return $stream->getNotices($offset, $limit, $sinceId, $maxId);
}
function _streamDirect($tag, $offset, $limit, $since_id, $max_id)
{
$nt = new Notice_tag();
$nt->tag = $tag;
$nt->selectAdd();
$nt->selectAdd('notice_id');
Notice::addWhereSinceId($nt, $since_id, 'notice_id');
Notice::addWhereMaxId($nt, $max_id, 'notice_id');
$nt->orderBy('created DESC, notice_id DESC');
if (!is_null($offset)) {
$nt->limit($offset, $limit);
}
$ids = array();
if ($nt->find()) {
while ($nt->fetch()) {
$ids[] = $nt->notice_id;
}
}
return $ids;
}
function blowCache($blowLast=false)
{
self::blow('notice_tag:notice_ids:%s', Cache::keyize($this->tag));

80
classes/Profile.php
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@ -198,90 +198,18 @@ class Profile extends Memcached_DataObject
function getTaggedNotices($tag, $offset=0, $limit=NOTICES_PER_PAGE, $since_id=0, $max_id=0)
{
$stream = new NoticeStream(array($this, '_streamTaggedDirect'),
array($tag),
'profile:notice_ids_tagged:'.$this->id.':'.$tag);
$stream = new TaggedProfileNoticeStream($this, $tag);
return $stream->getNotices($offset, $limit, $since_id, $max_id);
}
function getNotices($offset=0, $limit=NOTICES_PER_PAGE, $since_id=0, $max_id=0)
{
$stream = new NoticeStream(array($this, '_streamDirect'),
array(),
'profile:notice_ids:' . $this->id);
$stream = new ProfileNoticeStream($this);
return $stream->getNotices($offset, $limit, $since_id, $max_id);
}
function _streamTaggedDirect($tag, $offset, $limit, $since_id, $max_id)
{
// XXX It would be nice to do this without a join
// (necessary to do it efficiently on accounts with long history)
$notice = new Notice();
$query =
"select id from notice join notice_tag on id=notice_id where tag='".
$notice->escape($tag) .
"' and profile_id=" . intval($this->id);
$since = Notice::whereSinceId($since_id, 'id', 'notice.created');
if ($since) {
$query .= " and ($since)";
}
$max = Notice::whereMaxId($max_id, 'id', 'notice.created');
if ($max) {
$query .= " and ($max)";
}
$query .= ' order by notice.created DESC, id DESC';
if (!is_null($offset)) {
$query .= " LIMIT " . intval($limit) . " OFFSET " . intval($offset);
}
$notice->query($query);
$ids = array();
while ($notice->fetch()) {
$ids[] = $notice->id;
}
return $ids;
}
function _streamDirect($offset, $limit, $since_id, $max_id)
{
$notice = new Notice();
$notice->profile_id = $this->id;
$notice->selectAdd();
$notice->selectAdd('id');
Notice::addWhereSinceId($notice, $since_id);
Notice::addWhereMaxId($notice, $max_id);
$notice->orderBy('created DESC, id DESC');
if (!is_null($offset)) {
$notice->limit($offset, $limit);
}
$notice->find();
$ids = array();
while ($notice->fetch()) {
$ids[] = $notice->id;
}
return $ids;
}
function isMember($group)
{
$mem = new Group_member();
@ -551,7 +479,7 @@ class Profile extends Memcached_DataObject
// This is the stream of favorite notices, in rev chron
// order. This forces it into cache.
$ids = Fave::idStream($this->id, 0, NoticeStream::CACHE_WINDOW);
$ids = Fave::idStream($this->id, 0, CachingNoticeStream::CACHE_WINDOW);
// If it's in the list, then it's a fave
@ -563,7 +491,7 @@ class Profile extends Memcached_DataObject
// then the cache has all available faves, so this one
// is not a fave.
if (count($ids) < NoticeStream::CACHE_WINDOW) {
if (count($ids) < CachingNoticeStream::CACHE_WINDOW) {
return false;
}

29
classes/Reply.php
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@ -38,35 +38,8 @@ class Reply extends Memcached_DataObject
function stream($user_id, $offset=0, $limit=NOTICES_PER_PAGE, $since_id=0, $max_id=0)
{
$stream = new NoticeStream(array('Reply', '_streamDirect'),
array($user_id),
'reply:stream:' . $user_id);
$stream = new ReplyNoticeStream($user_id);
return $stream->getNotices($offset, $limit, $since_id, $max_id);
}
function _streamDirect($user_id, $offset=0, $limit=NOTICES_PER_PAGE, $since_id=0, $max_id=0)
{
$reply = new Reply();
$reply->profile_id = $user_id;
Notice::addWhereSinceId($reply, $since_id, 'notice_id', 'modified');
Notice::addWhereMaxId($reply, $max_id, 'notice_id', 'modified');
$reply->orderBy('modified DESC, notice_id DESC');
if (!is_null($offset)) {
$reply->limit($offset, $limit);
}
$ids = array();
if ($reply->find()) {
while ($reply->fetch()) {
$ids[] = $reply->notice_id;
}
}
return $ids;
}
}

79
classes/User.php
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@ -767,93 +767,18 @@ class User extends Memcached_DataObject
function repeatedByMe($offset=0, $limit=20, $since_id=null, $max_id=null)
{
$stream = new NoticeStream(array($this, '_repeatedByMeDirect'),
array(),
'user:repeated_by_me:'.$this->id);
$stream = new RepeatedByMeNoticeStream($this);
return $stream->getNotices($offset, $limit, $since_id, $max_id);
}
function _repeatedByMeDirect($offset, $limit, $since_id, $max_id)
{
$notice = new Notice();
$notice->selectAdd(); // clears it
$notice->selectAdd('id');
$notice->profile_id = $this->id;
$notice->whereAdd('repeat_of IS NOT NULL');
$notice->orderBy('created DESC, id DESC');
if (!is_null($offset)) {
$notice->limit($offset, $limit);
}
Notice::addWhereSinceId($notice, $since_id);
Notice::addWhereMaxId($notice, $max_id);
$ids = array();
if ($notice->find()) {
while ($notice->fetch()) {
$ids[] = $notice->id;
}
}
$notice->free();
$notice = NULL;
return $ids;
}
function repeatsOfMe($offset=0, $limit=20, $since_id=null, $max_id=null)
{
$stream = new NoticeStream(array($this, '_repeatsOfMeDirect'),
array(),
'user:repeats_of_me:'.$this->id);
$stream = new RepeatsOfMeNoticeStream($this);
return $stream->getNotices($offset, $limit, $since_id, $max_id);
}
function _repeatsOfMeDirect($offset, $limit, $since_id, $max_id)
{
$qry =
'SELECT DISTINCT original.id AS id ' .
'FROM notice original JOIN notice rept ON original.id = rept.repeat_of ' .
'WHERE original.profile_id = ' . $this->id . ' ';
$since = Notice::whereSinceId($since_id, 'original.id', 'original.created');
if ($since) {
$qry .= "AND ($since) ";
}
$max = Notice::whereMaxId($max_id, 'original.id', 'original.created');
if ($max) {
$qry .= "AND ($max) ";
}
$qry .= 'ORDER BY original.created, original.id DESC ';
if (!is_null($offset)) {
$qry .= "LIMIT $limit OFFSET $offset";
}
$ids = array();
$notice = new Notice();
$notice->query($qry);
while ($notice->fetch()) {
$ids[] = $notice->id;
}
$notice->free();
$notice = NULL;
return $ids;
}
function repeatedToMe($offset=0, $limit=20, $since_id=null, $max_id=null)
{

32
classes/User_group.php
View File

@ -87,41 +87,11 @@ class User_group extends Memcached_DataObject
function getNotices($offset, $limit, $since_id=null, $max_id=null)
{
$stream = new NoticeStream(array($this, '_streamDirect'),
array(),
'user_group:notice_ids:' . $this->id);
$stream = new GroupNoticeStream($this);
return $stream->getNotices($offset, $limit, $since_id, $max_id);
}
function _streamDirect($offset, $limit, $since_id, $max_id)
{
$inbox = new Group_inbox();
$inbox->group_id = $this->id;
$inbox->selectAdd();
$inbox->selectAdd('notice_id');
Notice::addWhereSinceId($inbox, $since_id, 'notice_id');
Notice::addWhereMaxId($inbox, $max_id, 'notice_id');
$inbox->orderBy('created DESC, notice_id DESC');
if (!is_null($offset)) {
$inbox->limit($offset, $limit);
}
$ids = array();
if ($inbox->find()) {
while ($inbox->fetch()) {
$ids[] = $inbox->notice_id;
}
}
return $ids;
}
function allowedNickname($nickname)
{

129
lib/cachingnoticestream.php Normal file
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@ -0,0 +1,129 @@
<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
*
* A stream of notices
*
* PHP version 5
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Stream
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
// This check helps protect against security problems;
// your code file can't be executed directly from the web.
exit(1);
}
/**
* Class for notice streams
*
* @category Stream
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class CachingNoticeStream extends NoticeStream
{
const CACHE_WINDOW = 200;
public $stream = null;
public $cachekey = null;
function __construct($stream, $cachekey)
{
$this->stream = $stream;
$this->cachekey = $cachekey;
}
function getNoticeIds($offset=0, $limit=20, $sinceId=0, $maxId=0)
{
$cache = Cache::instance();
// We cache self::CACHE_WINDOW elements at the tip of the stream.
// If the cache won't be hit, just generate directly.
if (empty($cache) ||
$sinceId != 0 || $maxId != 0 ||
is_null($limit) ||
($offset + $limit) > self::CACHE_WINDOW) {
return $this->stream->getNoticeIds($offset, $limit, $sinceId, $maxId);
}
// Check the cache to see if we have the stream.
$idkey = Cache::key($this->cachekey);
$idstr = $cache->get($idkey);
if ($idstr !== false) {
// Cache hit! Woohoo!
$window = explode(',', $idstr);
$ids = array_slice($window, $offset, $limit);
return $ids;
}
// Check the cache to see if we have a "last-known-good" version.
// The actual cache gets blown away when new notices are added, but
// the "last" value holds a lot of info. We might need to only generate
// a few at the "tip", which can bound our queries and save lots
// of time.
$laststr = $cache->get($idkey.';last');
if ($laststr !== false) {
$window = explode(',', $laststr);
$last_id = $window[0];
$new_ids = $this->stream->getNoticeIds(0, self::CACHE_WINDOW, $last_id, 0);
$new_window = array_merge($new_ids, $window);
$new_windowstr = implode(',', $new_window);
$result = $cache->set($idkey, $new_windowstr);
$result = $cache->set($idkey . ';last', $new_windowstr);
$ids = array_slice($new_window, $offset, $limit);
return $ids;
}
// No cache hits :( Generate directly and stick the results
// into the cache. Note we generate the full cache window.
$window = $this->stream->getNoticeIds(0, self::CACHE_WINDOW, 0, 0);
$windowstr = implode(',', $window);
$result = $cache->set($idkey, $windowstr);
$result = $cache->set($idkey . ';last', $windowstr);
// Return just the slice that was requested
$ids = array_slice($window, $offset, $limit);
return $ids;
}
}

52
lib/conversationnoticestream.php Normal file
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@ -0,0 +1,52 @@
<?php
class ConversationNoticeStream extends CachingNoticeStream
{
function __construct($id)
{
parent::__construct(new RawConversationNoticeStream($id),
'notice:conversation_ids:'.$id);
}
}
class RawConversationNoticeStream extends NoticeStream
{
protected $id;
function __construct($id)
{
$this->id = $id;
}
function getNoticeIds($offset=0, $limit=20, $since_id=0, $max_id=0)
{
$notice = new Notice();
$notice->selectAdd(); // clears it
$notice->selectAdd('id');
$notice->conversation = $this->id;
$notice->orderBy('created DESC, id DESC');
if (!is_null($offset)) {
$notice->limit($offset, $limit);
}
Notice::addWhereSinceId($notice, $since_id);
Notice::addWhereMaxId($notice, $max_id);
$ids = array();
if ($notice->find()) {
while ($notice->fetch()) {
$ids[] = $notice->id;
}
}
$notice->free();
$notice = NULL;
return $ids;
}
}

86
lib/favenoticestream.php Normal file
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@ -0,0 +1,86 @@
<?php
class FaveNoticeStream extends CachingNoticeStream
{
function __construct($user_id, $own)
{
$stream = new RawFaveNoticeStream($user_id, $own);
if ($own) {
$key = 'fave:ids_by_user_own:'.$user_id;
} else {
$key = 'fave:ids_by_user:'.$user_id;
}
parent::__construct($stream, $key);
}
}
class RawFaveNoticeStream extends NoticeStream
{
protected $user_id;
protected $own;
function __construct($user_id, $own)
{
$this->user_id = $user_id;
$this->own = $own;
}
/**
* Note that the sorting for this is by order of *fave* not order of *notice*.
*
* @fixme add since_id, max_id support?
*
* @param <type> $user_id
* @param <type> $own
* @param <type> $offset
* @param <type> $limit
* @param <type> $since_id
* @param <type> $max_id
* @return <type>
*/
function getNoticeIds($offset, $limit, $since_id, $max_id)
{
$fav = new Fave();
$qry = null;
if ($this->own) {
$qry = 'SELECT fave.* FROM fave ';
$qry .= 'WHERE fave.user_id = ' . $this->user_id . ' ';
} else {
$qry = 'SELECT fave.* FROM fave ';
$qry .= 'INNER JOIN notice ON fave.notice_id = notice.id ';
$qry .= 'WHERE fave.user_id = ' . $this->user_id . ' ';
$qry .= 'AND notice.is_local != ' . Notice::GATEWAY . ' ';
}
if ($since_id != 0) {
$qry .= 'AND notice_id > ' . $since_id . ' ';
}
if ($max_id != 0) {
$qry .= 'AND notice_id <= ' . $max_id . ' ';
}
// NOTE: we sort by fave time, not by notice time!
$qry .= 'ORDER BY modified DESC ';
if (!is_null($offset)) {
$qry .= "LIMIT $limit OFFSET $offset";
}
$fav->query($qry);
$ids = array();
while ($fav->fetch()) {
$ids[] = $fav->notice_id;
}
$fav->free();
unset($fav);
return $ids;
}
}

60
lib/filenoticestream.php Normal file
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@ -0,0 +1,60 @@
<?php
class FileNoticeStream extends CachingNoticeStream
{
function __construct($file)
{
parent::__construct(new RawFileNoticeStream($file),
'file:notice-ids:'.$this->url);
}
}
class RawFileNoticeStream extends NoticeStream
{
protected $file = null;
function __construct($file)
{
$this->file = $file;
parent::__construct();
}
/**
* Stream of notices linking to this URL
*
* @param integer $offset Offset to show; default is 0
* @param integer $limit Limit of notices to show
* @param integer $since_id Since this notice
* @param integer $max_id Before this notice
*
* @return array ids of notices that link to this file
*/
function getNoticeIds($offset, $limit, $since_id, $max_id)
{
$f2p = new File_to_post();
$f2p->selectAdd();
$f2p->selectAdd('post_id');
$f2p->file_id = $this->file->id;
Notice::addWhereSinceId($f2p, $since_id, 'post_id', 'modified');
Notice::addWhereMaxId($f2p, $max_id, 'post_id', 'modified');
$f2p->orderBy('modified DESC, post_id DESC');
if (!is_null($offset)) {
$f2p->limit($offset, $limit);
}
$ids = array();
if ($f2p->find()) {
while ($f2p->fetch()) {
$ids[] = $f2p->post_id;
}
}
return $ids;
}
}

49
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@ -0,0 +1,49 @@
<?
class GroupNoticeStream extends CachingNoticeStream
{
function __construct($group)
{
parent::__construct(new RawGroupNoticeStream($group),
'user_group:notice_ids:' . $group->id);
}
}
class RawGroupNoticeStream extends NoticeStream
{
protected $group;
function __construct($group)
{
$this->group = $group;
}
function getNoticeIds($offset, $limit, $since_id, $max_id)
{
$inbox = new Group_inbox();
$inbox->group_id = $this->group->id;
$inbox->selectAdd();
$inbox->selectAdd('notice_id');
Notice::addWhereSinceId($inbox, $since_id, 'notice_id');
Notice::addWhereMaxId($inbox, $max_id, 'notice_id');
$inbox->orderBy('created DESC, notice_id DESC');
if (!is_null($offset)) {
$inbox->limit($offset, $limit);
}
$ids = array();
if ($inbox->find()) {
while ($inbox->fetch()) {
$ids[] = $inbox->notice_id;
}
}
return $ids;
}
}

94
lib/noticestream.php
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@ -44,20 +44,9 @@ if (!defined('STATUSNET')) {
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class NoticeStream
abstract class NoticeStream
{
const CACHE_WINDOW = 200;
public $generator = null;
public $args = null;
public $cachekey = null;
function __construct($generator, $args, $cachekey)
{
$this->generator = $generator;
$this->args = $args;
$this->cachekey = $cachekey;
}
abstract function getNoticeIds($offset, $limit, $sinceId, $maxId);
function getNotices($offset=0, $limit=20, $sinceId=0, $maxId=0)
{
@ -68,75 +57,6 @@ class NoticeStream
return $notices;
}
function getNoticeIds($offset=0, $limit=20, $sinceId=0, $maxId=0)
{
$cache = Cache::instance();
// We cache self::CACHE_WINDOW elements at the tip of the stream.
// If the cache won't be hit, just generate directly.
if (empty($cache) ||
$sinceId != 0 || $maxId != 0 ||
is_null($limit) ||
($offset + $limit) > self::CACHE_WINDOW) {
return $this->generate($offset, $limit, $sinceId, $maxId);
}
// Check the cache to see if we have the stream.
$idkey = Cache::key($this->cachekey);
$idstr = $cache->get($idkey);
if ($idstr !== false) {
// Cache hit! Woohoo!
$window = explode(',', $idstr);
$ids = array_slice($window, $offset, $limit);
return $ids;
}
// Check the cache to see if we have a "last-known-good" version.
// The actual cache gets blown away when new notices are added, but
// the "last" value holds a lot of info. We might need to only generate
// a few at the "tip", which can bound our queries and save lots
// of time.
$laststr = $cache->get($idkey.';last');
if ($laststr !== false) {
$window = explode(',', $laststr);
$last_id = $window[0];
$new_ids = $this->generate(0, self::CACHE_WINDOW, $last_id, 0);
$new_window = array_merge($new_ids, $window);
$new_windowstr = implode(',', $new_window);
$result = $cache->set($idkey, $new_windowstr);
$result = $cache->set($idkey . ';last', $new_windowstr);
$ids = array_slice($new_window, $offset, $limit);
return $ids;
}
// No cache hits :( Generate directly and stick the results
// into the cache. Note we generate the full cache window.
$window = $this->generate(0, self::CACHE_WINDOW, 0, 0);
$windowstr = implode(',', $window);
$result = $cache->set($idkey, $windowstr);
$result = $cache->set($idkey . ';last', $windowstr);
// Return just the slice that was requested
$ids = array_slice($window, $offset, $limit);
return $ids;
}
static function getStreamByIds($ids)
{
$cache = Cache::instance();
@ -177,14 +97,4 @@ class NoticeStream
return new ArrayWrapper($wrapped);
}
}
function generate($offset, $limit, $sinceId, $maxId)
{
$args = array_merge($this->args, array($offset,
$limit,
$sinceId,
$maxId));
return call_user_func_array($this->generator, $args);
}
}

105
lib/profilenoticestream.php Normal file
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@ -0,0 +1,105 @@
<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
*
* Stream of notices by a profile
*
* PHP version 5
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Stream
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
// This check helps protect against security problems;
// your code file can't be executed directly from the web.
exit(1);
}
/**
* Stream of notices by a profile
*
* @category General
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class ProfileNoticeStream extends CachingNoticeStream
{
function __construct($profile)
{
parent::__construct(new RawProfileNoticeStream($profile),
'profile:notice_ids:' . $profile->id);
}
}
/**
* Raw stream of notices by a profile
*
* @category General
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class RawProfileNoticeStream extends NoticeStream
{
protected $profile;
function __construct($profile)
{
$this->profile = $profile;
}
function getNoticeIds($offset, $limit, $since_id, $max_id)
{
$notice = new Notice();
$notice->profile_id = $this->profile->id;
$notice->selectAdd();
$notice->selectAdd('id');
Notice::addWhereSinceId($notice, $since_id);
Notice::addWhereMaxId($notice, $max_id);
$notice->orderBy('created DESC, id DESC');
if (!is_null($offset)) {
$notice->limit($offset, $limit);
}
$notice->find();
$ids = array();
while ($notice->fetch()) {
$ids[] = $notice->id;
}
return $ids;
}
}

50
lib/publicnoticestream.php Normal file
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@ -0,0 +1,50 @@
<?php
class PublicNoticeStream extends CachingNoticeStream
{
function __construct()
{
parent::__construct(new RawPublicNoticeStream(), 'public');
}
}
class RawPublicNoticeStream extends NoticeStream
{
function getNoticeIds($offset=0, $limit=20, $since_id=0, $max_id=0)
{
$notice = new Notice();
$notice->selectAdd(); // clears it
$notice->selectAdd('id');
$notice->orderBy('created DESC, id DESC');
if (!is_null($offset)) {
$notice->limit($offset, $limit);
}
if (common_config('public', 'localonly')) {
$notice->whereAdd('is_local = ' . Notice::LOCAL_PUBLIC);
} else {
// -1 == blacklisted, -2 == gateway (i.e. Twitter)
$notice->whereAdd('is_local !='. Notice::LOCAL_NONPUBLIC);
$notice->whereAdd('is_local !='. Notice::GATEWAY);
}
Notice::addWhereSinceId($notice, $since_id);
Notice::addWhereMaxId($notice, $max_id);
$ids = array();
if ($notice->find()) {
while ($notice->fetch()) {
$ids[] = $notice->id;
}
}
$notice->free();
$notice = NULL;
return $ids;
}
}

53
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@ -0,0 +1,53 @@
<?php
class RepeatedByMeNoticeStream extends CachingNoticeStream
{
function __construct($user)
{
parent::__construct(new RawRepeatedByMeNoticeStream($user),
'user:repeated_by_me:'.$user->id);
}
}
class RawRepeatedByMeNoticeStream extends NoticeStream
{
protected $user;
function __construct($user)
{
$this->user = $user;
}
function getNoticeIds($offset, $limit, $since_id, $max_id)
{
$notice = new Notice();
$notice->selectAdd(); // clears it
$notice->selectAdd('id');
$notice->profile_id = $this->user->id;
$notice->whereAdd('repeat_of IS NOT NULL');
$notice->orderBy('created DESC, id DESC');
if (!is_null($offset)) {
$notice->limit($offset, $limit);
}
Notice::addWhereSinceId($notice, $since_id);
Notice::addWhereMaxId($notice, $max_id);
$ids = array();
if ($notice->find()) {
while ($notice->fetch()) {
$ids[] = $notice->id;
}
}
$notice->free();
$notice = NULL;
return $ids;
}
}

59
lib/repeatsofmenoticestream.php Normal file
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@ -0,0 +1,59 @@
<?php
class RepeatsOfMeNoticeStream extends CachingNoticeStream
{
function __construct($user)
{
parent::__construct(new RawRepeatsOfMeNoticeStream($user),
'user:repeats_of_me:'.$user->id);
}
}
class RawRepeatsOfMeNoticeStream extends NoticeStream
{
protected $user;
function __construct($user)
{
$this->user = $user;
}
function getNoticeIds($offset, $limit, $since_id, $max_id)
{
$qry =
'SELECT DISTINCT original.id AS id ' .
'FROM notice original JOIN notice rept ON original.id = rept.repeat_of ' .
'WHERE original.profile_id = ' . $this->user->id . ' ';
$since = Notice::whereSinceId($since_id, 'original.id', 'original.created');
if ($since) {
$qry .= "AND ($since) ";
}
$max = Notice::whereMaxId($max_id, 'original.id', 'original.created');
if ($max) {
$qry .= "AND ($max) ";
}
$qry .= 'ORDER BY original.created, original.id DESC ';
if (!is_null($offset)) {
$qry .= "LIMIT $limit OFFSET $offset";
}
$ids = array();
$notice = new Notice();
$notice->query($qry);
while ($notice->fetch()) {
$ids[] = $notice->id;
}
$notice->free();
$notice = NULL;
return $ids;
}
}

45
lib/replynoticestream.php Normal file
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@ -0,0 +1,45 @@
<?php
class ReplyNoticeStream extends CachingNoticeStream
{
function __construct($userId)
{
parent::__construct(new RawReplyNoticeStream($userId),
'reply:stream:' . $userId);
}
}
class RawReplyNoticeStream extends NoticeStream
{
protected $userId;
function __construct($userId)
{
$this->userId = $userId;
}
function getNoticeIds($offset=0, $limit=NOTICES_PER_PAGE, $since_id=0, $max_id=0)
{
$reply = new Reply();
$reply->profile_id = $this->userId;
Notice::addWhereSinceId($reply, $since_id, 'notice_id', 'modified');
Notice::addWhereMaxId($reply, $max_id, 'notice_id', 'modified');
$reply->orderBy('modified DESC, notice_id DESC');
if (!is_null($offset)) {
$reply->limit($offset, $limit);
}
$ids = array();
if ($reply->find()) {
while ($reply->fetch()) {
$ids[] = $reply->notice_id;
}
}
return $ids;
}
}

61
lib/taggedprofilenoticestream.php Normal file
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@ -0,0 +1,61 @@
<?
class TaggedProfileNoticeStream extends CachingNoticeStream
{
function __construct($profile, $tag)
{
parent::__construct(new RawTaggedProfileNoticeStream($profile, $tag),
'profile:notice_ids_tagged:'.$profile->id.':'.Cache::keyize($tag));
}
}
class RawTaggedProfileNoticeStream extends NoticeStream
{
protected $profile;
protected $tag;
function __construct($profile, $tag)
{
$this->profile = $profile;
$this->tag = $tag;
}
function getNoticeIds($offset, $limit, $since_id, $max_id)
{
// XXX It would be nice to do this without a join
// (necessary to do it efficiently on accounts with long history)
$notice = new Notice();
$query =
"select id from notice join notice_tag on id=notice_id where tag='".
$notice->escape($this->tag) .
"' and profile_id=" . intval($this->profile->id);
$since = Notice::whereSinceId($since_id, 'id', 'notice.created');
if ($since) {
$query .= " and ($since)";
}
$max = Notice::whereMaxId($max_id, 'id', 'notice.created');
if ($max) {
$query .= " and ($max)";
}
$query .= ' order by notice.created DESC, id DESC';
if (!is_null($offset)) {
$query .= " LIMIT " . intval($limit) . " OFFSET " . intval($offset);
}
$notice->query($query);
$ids = array();
while ($notice->fetch()) {
$ids[] = $notice->id;
}
return $ids;
}
}

49
lib/tagnoticestream.php Normal file
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@ -0,0 +1,49 @@
<?php
class TagNoticeStream extends CachingNoticeStream
{
function __construct($tag)
{
parent::__construct(new RawTagNoticeStream($tag),
'notice_tag:notice_ids:' . Cache::keyize($tag));
}
}
class RawTagNoticeStream extends NoticeStream
{
protected $tag;
function __construct($tag)
{
$this->tag = $tag;
}
function getNoticeIds($offset, $limit, $since_id, $max_id)
{
$nt = new Notice_tag();
$nt->tag = $this->tag;
$nt->selectAdd();
$nt->selectAdd('notice_id');
Notice::addWhereSinceId($nt, $since_id, 'notice_id');
Notice::addWhereMaxId($nt, $max_id, 'notice_id');
$nt->orderBy('created DESC, notice_id DESC');
if (!is_null($offset)) {
$nt->limit($offset, $limit);
}
$ids = array();
if ($nt->find()) {
while ($nt->fetch()) {
$ids[] = $nt->notice_id;
}
}
return $ids;
}
}