some debugging code for sessions

[quix0rs-gnu-social.git] / lib / queuehandler.php

diff --git a/lib/queuehandler.php b/lib/queuehandler.php
index 48487f8e9e14f8edd93677ddd24a47f6dc8d0806..ae403c65e24f815f4f38b56b9ec081e760092074 100644 (file)
--- a/lib/queuehandler.php
+++ b/lib/queuehandler.php
@@ -1,7 +1,7 @@
 <?php
 /*
  * Laconica - a distributed open-source microblogging tool
- * Copyright (C) 2008, Controlez-Vous, Inc.
+ * Copyright (C) 2008, 2009, Control Yourself, Inc.
  *
  * 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
@@ -25,7 +25,8 @@ require_once(INSTALLDIR.'/lib/daemon.php');
 require_once(INSTALLDIR.'/classes/Queue_item.php');
 require_once(INSTALLDIR.'/classes/Notice.php');
 
-class QueueHandler extends Daemon {
+class QueueHandler extends Daemon
+{
 
     var $_id = 'generic';
 
@@ -35,7 +36,7 @@ class QueueHandler extends Daemon {
             $this->set_id($id);
         }
     }
-    
+
     function class_name()
     {
         return ucfirst($this->transport()) . 'Handler';
@@ -45,7 +46,7 @@ class QueueHandler extends Daemon {
     {
         return strtolower($this->class_name().'.'.$this->get_id());
     }
-    
+
     function get_id()
     {
         return $this->_id;
@@ -55,16 +56,16 @@ class QueueHandler extends Daemon {
     {
         $this->_id = $id;
     }
-    
+
     function transport()
     {
         return null;
     }
-    
+
     function start()
     {
     }
-    
+
     function finish()
     {
     }
@@ -73,16 +74,10 @@ class QueueHandler extends Daemon {
     {
         return true;
     }
-    
-    function run()
-    {
-        if (!$this->start()) {
-            return false;
-        }
-        $this->log(LOG_INFO, 'checking for queued notices');
-        $transport = $this->transport();
+
+    function db_dispatch() {
         do {
-            $qi = Queue_item::top($transport);
+            $qi = Queue_item::top($this->transport());
             if ($qi) {
                 $this->log(LOG_INFO, 'Got item enqueued '.common_exact_date($qi->created));
                 $notice = Notice::staticGet($qi->notice_id);
@@ -112,8 +107,78 @@ class QueueHandler extends Daemon {
             } else {
                 $this->clear_old_claims();
                 $this->idle(5);
-            }    
+            }
+        } while (true);
+    }
+
+    function stomp_dispatch() {
+
+        // use an external message queue system via STOMP
+        require_once("Stomp.php");
+
+        $server = common_config('queue','stomp_server');
+        $username = common_config('queue', 'stomp_username');
+        $password = common_config('queue', 'stomp_password');
+
+        $con = new Stomp($server);
+
+        if (!$con->connect($username, $password)) {
+            $this->log(LOG_ERR, 'Failed to connect to queue server');
+            return false;
+        }
+
+        $queue_basename = common_config('queue','queue_basename');
+        // subscribe to the relevant queue (format: basename-transport)
+        $con->subscribe('/queue/'.$queue_basename.'-'.$this->transport());
+
+        do {
+            $frame = $con->readFrame();
+            if ($frame) {
+                $this->log(LOG_INFO, 'Got item enqueued '.common_exact_date($frame->headers['created']));
+
+                // XXX: Now the queue handler receives only the ID of the
+                // notice, and it has to get it from the DB
+                // A massive improvement would be avoid DB query by transmitting
+                // all the notice details via queue server...
+                $notice = Notice::staticGet($frame->body);
+
+                if ($notice) {
+                    $this->log(LOG_INFO, 'broadcasting notice ID = ' . $notice->id);
+                    $result = $this->handle_notice($notice);
+                    if ($result) {
+                        // if the msg has been handled positively, ack it
+                        // and the queue server will remove it from the queue
+                        $con->ack($frame);
+                        $this->log(LOG_INFO, 'finished broadcasting notice ID = ' . $notice->id);
+                    }
+                    else {
+                        // no ack
+                        $this->log(LOG_WARNING, 'Failed broadcast for notice ID = ' . $notice->id);
+                    }
+                    $notice->free();
+                    unset($notice);
+                    $notice = null;
+                } else {
+                    $this->log(LOG_WARNING, 'queue item for notice that does not exist');
+                }
+            }
         } while (true);
+
+        $con->disconnect();
+    }
+
+    function run()
+    {
+        if (!$this->start()) {
+            return false;
+        }
+        $this->log(LOG_INFO, 'checking for queued notices');
+        if (common_config('queue','subsystem') == 'stomp') {
+            $this->stomp_dispatch();
+        }
+        else {
+            $this->db_dispatch();
+        }
         if (!$this->finish()) {
             return false;
         }
@@ -126,7 +191,7 @@ class QueueHandler extends Daemon {
             sleep($timeout);
         }
     }
-    
+
     function clear_old_claims()
     {
         $qi = new Queue_item();
@@ -136,10 +201,10 @@ class QueueHandler extends Daemon {
         $qi->free();
         unset($qi);
     }
-    
+
     function log($level, $msg)
     {
         common_log($level, $this->class_name() . ' ('. $this->get_id() .'): '.$msg);
     }
 }
-    
\ No newline at end of file
+