Changes between Version 1 and Version 2 of technicalGuideAndManual

Timestamp:

01/16/12 11:59:43 (12 years ago)

Author:

bartek

Comment:

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technicalGuideAndManual

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-<div class="article" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="d0e1"></a><span class="emphasis"><em>QCG Notification</em></span> v. 1.4.4 Technical Guide and
+<div class="article" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="d0e1"></a><span class="emphasis"><em>QCG Notification</em></span> v. 1.2 Technical Guide and
     Manual</h2></div><div><div class="authorgroup"><div class="author"><h3 class="author"><span class="firstname">Bartosz</span> <span class="surname">Bosak</span></h3><code class="email">&lt;<a class="email" href="mailto:bbosak@man.poznan.pl">bbosak@man.poznan.pl</a>&gt;</code></div><div class="author"><h3 class="author"><span class="firstname">Krzysztof</span> <span class="surname">Kurowski</span></h3><code class="email">&lt;<a class="email" href="mailto:kikas@man.poznan.pl">kikas@man.poznan.pl</a>&gt;</code></div></div></div><div><p class="releaseinfo">2.4.4</p></div><div><p class="copyright">Copyright &copy; 2008-2012 Poznan Supercomputing and Networking Center</p></div></div><hr></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="sect1"><a href="#d0e37">1. Introduction</a></span></dt><dd><dl><dt><span class="sect2"><a href="#d0e48">1.1. Motivations</a></span></dt><dt><span class="sect2"><a href="#d0e56">1.2. Purpose of the Document</a></span></dt><dt><span class="sect2"><a href="#d0e71">1.3. Status</a></span></dt></dl></dd><dt><span class="sect1"><a href="#d0e80">2. Terminology and WS-Notification Concept</a></span></dt><dd><dl><dt><span class="sect2"><a href="#d0e88">2.1. WS-Notification Concept</a></span></dt><dd><dl><dt><span class="sect3"><a href="#d0e91">2.1.1. WS-Notification Fundamentals</a></span></dt><dt><span class="sect3"><a href="#d0e134">2.1.2. WS-BaseNotification</a></span></dt><dt><span class="sect3"><a href="#d0e196">2.1.3. WS-BrokeredNotification</a></span></dt><dt><span class="sect3"><a href="#d0e274">2.1.4. WS-Topics</a></span></dt><dt><span class="sect3"><a href="#d0e328">2.1.5. Base of QCG Notification</a></span></dt></dl></dd><dt><span class="sect2"><a href="#d0e420">2.2. UML-style Diagrams</a></span></dt><dd><dl><dt><span class="sect3"><a href="#d0e461">2.2.1. `Main Use Cases</a></span></dt><dt><span class="sect3"><a href="#d0e494">2.2.2. Main Sequence Diagrams</a></span></dt></dl></dd></dl></dd><dt><span class="sect1"><a href="#d0e503">3. User Guide for a Publisher, Subscriber and
     NotificationConsumer </a></span></dt><dd><dl><dt><span class="sect2"><a href="#d0e508">3.1. Prefixes and Namespaces</a></span></dt><dt><span class="sect2"><a href="#d0e586">3.2. Interaction with QCG Notification</a></span></dt><dd><dl><dt><span class="sect3"><a href="#d0e596">3.2.1. Publisher Interaction</a></span></dt><dt><span class="sect3"><a href="#d0e610">3.2.2. Subscriber interaction</a></span></dt><dt><span class="sect3"><a href="#d0e635">3.2.3. NotificationConsumer Interaction</a></span></dt></dl></dd><dt><span class="sect2"><a href="#ted">3.3. Topics, TopicExpressions and Dialects</a></span></dt><dt><span class="sect2"><a href="#d0e689">3.4. Extensions</a></span></dt><dd><dl><dt><span class="sect3"><a href="#d0e697">3.4.1. TopicExpression</a></span></dt><dt><span class="sect3"><a href="#d0e708">3.4.2. QCG Notification Extensions</a></span></dt></dl></dd><dt><span class="sect2"><a href="#d0e719">3.5. Methods Description</a></span></dt><dd><dl><dt><span class="sect3"><a href="#d0e753">3.5.1. SubscribeRequest</a></span></dt><dt><span class="sect3"><a href="#d0e850">3.5.2. SubscribeResponse</a></span></dt><dt><span class="sect3"><a href="#d0e898">3.5.3. RenewRequest</a></span></dt><dt><span class="sect3"><a href="#d0e939">3.5.4. RenewResponse</a></span></dt><dt><span class="sect3"><a href="#d0e983">3.5.5. UnsubscribeRequest</a></span></dt><dt><span class="sect3"><a href="#d0e1016">3.5.6. UnsubscribeResponse</a></span></dt><dt><span class="sect3"><a href="#d0e1037">3.5.7. RegisterPublisherRequest</a></span></dt><dt><span class="sect3"><a href="#d0e1090">3.5.8. RegisterPublisherResponse</a></span></dt><dt><span class="sect3"><a href="#d0e1135">3.5.9. Notify</a></span></dt><dt><span class="sect3"><a href="#d0e1219">3.5.10. DestroyRegistrationRequest</a></span></dt><dt><span class="sect3"><a href="#d0e1252">3.5.11. DestroyRegistrationResponse</a></span></dt><dt><span class="sect3"><a href="#d0e1273">3.5.12. CreatePullPointRequest</a></span></dt><dt><span class="sect3"><a href="#d0e1297">3.5.13. CreatePullPointResponse</a></span></dt><dt><span class="sect3"><a href="#d0e1327">3.5.14. GetMessages</a></span></dt><dt><span class="sect3"><a href="#d0e1360">3.5.15. GetMessagesResponse</a></span></dt><dt><span class="sect3"><a href="#d0e1437">3.5.16. DestroyPullPointRequest</a></span></dt><dt><span class="sect3"><a href="#d0e1458">3.5.17. DestroyPullPointResponse</a></span></dt><dt><span class="sect3"><a href="#d0e1479">3.5.18. GetCurrentMessageRequest</a></span></dt><dt><span class="sect3"><a href="#d0e1526">3.5.19. GetCurrentMessageResponse</a></span></dt><dt><span class="sect3"><a href="#d0e1592">3.5.20. ListSubscriptions</a></span></dt><dt><span class="sect3"><a href="#d0e1694">3.5.21. ListSubscriptionsResponse</a></span></dt><dt><span class="sect3"><a href="#d0e1791">3.5.22. ListPublishersRegistrations</a></span></dt><dt><span class="sect3"><a href="#d0e1872">3.5.23. ListPublisherRegistrationsResponse</a></span></dt><dt><span class="sect3"><a href="#d0e1946">3.5.24. ListPullPoints</a></span></dt><dt><span class="sect3"><a href="#d0e2027">3.5.25. ListPullPointsResponse</a></span></dt><dt><span class="sect3"><a href="#d0e2101">3.5.26. ListTopicNamespaces</a></span></dt><dt><span class="sect3"><a href="#d0e2141">3.5.27. ListTopicNamespacesResponse</a></span></dt><dt><span class="sect3"><a href="#d0e2200">3.5.28. AddTopicNamespace</a></span></dt><dt><span class="sect3"><a href="#d0e2237">3.5.29. AddTopicNamespaceResponse</a></span></dt><dt><span class="sect3"><a href="#d0e2262">3.5.30. RemoveTopicNamespace</a></span></dt><dt><span class="sect3"><a href="#d0e2296">3.5.31. RemoveTopicNamespaceResponse</a></span></dt></dl></dd></dl></dd><dt><span class="sect1"><a href="#d0e2318">4. Administration Guide of QCG
@@ -64 +64 @@
         roles/actors called respectively NotificationProducer and
         NotificationConsumer. An example system architecture based on
-        WS-BaseNotification is presented below.</p><div class="figure"><a name="BaseEntities"></a><p class="title"><b>Figure&nbsp;1.&nbsp;Web Services BaseNotification entities</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/general/smn_baseentities.png" align="middle" width="324" alt="Web Services BaseNotification entities"></div></div></div><p><br class="figure-break">The basic terminology related to the WS-BaseNotification is
+        WS-BaseNotification is presented below.</p><div class="figure"><a name="BaseEntities"></a><p class="title"><b>Figure&nbsp;1.&nbsp;Web Services BaseNotification entities</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/general/smn_baseentities.png" align="middle" width="324" alt="Web Services BaseNotification entities"></div></div></div><p><br class="figure-break">The basic terminology related to the WS-BaseNotification is
         following:</p><div class="variablelist"><dl><dt><span class="term">Situation</span></dt><dd><p>Some occurrence known by a NotificationProducer. A
                 Situation is a reason of dispatching a Notification.</p></dd><dt><span class="term">Notification</span></dt><dd><p><a name="a"></a>An artifact of a Situation containing information
@@ -93 +93 @@
         The figure below shows an example scenario and notification message
         flow where NotificationBroker is present.</p><div class="figure"><a name="d0e202"></a><p class="title"><b>Figure&nbsp;2.&nbsp;Web Services BrokeredNotification entities - QCG
-            Notification entities</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/general/smn_brokeredentities.png" align="middle" width="324" alt="Web Services BrokeredNotification entities - QCG Notification entities"></div></div></div><p><br class="figure-break">Note, that there are some important enlargements and
+            Notification entities</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/general/smn_brokeredentities.png" align="middle" width="324" alt="Web Services BrokeredNotification entities - QCG Notification entities"></div></div></div><p><br class="figure-break">Note, that there are some important enlargements and
         modifications in the WS-BrokeredNotificatison terminology. Below the
         most relevant definitions are presented.</p><div class="variablelist"><dl><dt><span class="term">Situation</span></dt><dd><p>Some occurrence, known by a Publisher. A Situation is a
@@ -145 +145 @@
               TopicExpression. The specification defines four Dialects:
               <span class="emphasis"><em>Simple</em></span>, <span class="emphasis"><em>Concrete</em></span>,
-              <span class="emphasis"><em>Full</em></span> and <span class="emphasis"><em>XPath</em></span>.</p></dd></dl></div><div class="figure"><a name="d0e322"></a><p class="title"><b>Figure&nbsp;3.&nbsp;Example Topic Namespace</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/general/smn_topicnamespace.png" align="middle" width="324" alt="Example Topic Namespace"></div></div></div><br class="figure-break"></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e328"></a>2.1.5.&nbsp;Base of <span class="emphasis"><em>QCG Notification</em></span></h4></div></div></div><p><span class="emphasis"><em>QCG Notification</em></span> is a reference
+              <span class="emphasis"><em>Full</em></span> and <span class="emphasis"><em>XPath</em></span>.</p></dd></dl></div><div class="figure"><a name="d0e322"></a><p class="title"><b>Figure&nbsp;3.&nbsp;Example Topic Namespace</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/general/smn_topicnamespace.png" align="middle" width="324" alt="Example Topic Namespace"></div></div></div><br class="figure-break"></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e328"></a>2.1.5.&nbsp;Base of <span class="emphasis"><em>QCG Notification</em></span></h4></div></div></div><p><span class="emphasis"><em>QCG Notification</em></span> is a reference
         implementation of WS-BaseNotification, WS-BrokeredNotification and
         WS-Topics OASIS industry standards. As a consistent and highly
@@ -169 +169 @@
         demonstrating capabilities offered by <span class="emphasis"><em>QCG
         Notification</em></span>.</p><div class="figure"><a name="notificationConsumers"></a><p class="title"><b>Figure&nbsp;4.&nbsp;Notification with multiple Publishers and multiple
-          NotificationConsumers</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/general/smn_example1.png" align="middle" width="324" alt="Notification with multiple Publishers and multiple NotificationConsumers"></div></div></div><br class="figure-break"><p>The <a class="link" href="#notificationConsumers" title="Figure&nbsp;4.&nbsp;Notification with multiple Publishers and multiple NotificationConsumers">diagram 4</a> shows
+          NotificationConsumers</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/general/smn_example1.png" align="middle" width="324" alt="Notification with multiple Publishers and multiple NotificationConsumers"></div></div></div><br class="figure-break"><p>The <a class="link" href="#notificationConsumers" title="Figure&nbsp;4.&nbsp;Notification with multiple Publishers and multiple NotificationConsumers">diagram 4</a> shows
         one of the basic notification flows supported by <span class="emphasis"><em>QCG
         Notification</em></span>. Depending on records, Notifications produced
@@ -186 +186 @@
         sequence of events in order to initialize an asynchronous process of
         notifications between a Publisher and a NotificationConsumer.</p><div class="figure"><a name="d0e382"></a><p class="title"><b>Figure&nbsp;5.&nbsp;Message flows: creating a Subscription, notifying
-          NotificationConsumers</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/general/smn_example2.png" align="middle" width="324" alt="Message flows: creating a Subscription, notifying NotificationConsumers"></div></div></div><br class="figure-break"><div class="orderedlist"><ol type="1"><li><p>A Subscriber sends the SubscribeRequest message with a
+          NotificationConsumers</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/general/smn_example2.png" align="middle" width="324" alt="Message flows: creating a Subscription, notifying NotificationConsumers"></div></div></div><br class="figure-break"><div class="orderedlist"><ol type="1"><li><p>A Subscriber sends the SubscribeRequest message with a
             NotificationConsumer location and TopicExpression parameters to
             <span class="emphasis"><em>QCG Notification</em></span>.</p></li><li><p><span class="emphasis"><em>QCG Notification</em></span> prepares appropriate
@@ -220 +220 @@
       clearly ordered message layout and connections among functional units.
       The actors and messages in the sequence diagrams are more properly roles
-      in a scenario and actions associated with that scenario.</p><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e461"></a>2.2.1.&nbsp;`Main Use Cases</h4></div></div></div><div class="figure"><a name="d0e464"></a><p class="title"><b>Figure&nbsp;6.&nbsp;Use case diagram for a Publisher</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/use_publisher.png" align="middle" width="432" alt="Use case diagram for a Publisher"></div></div></div><br class="figure-break"><div class="figure"><a name="d0e470"></a><p class="title"><b>Figure&nbsp;7.&nbsp;Use case diagram for a Subscriber</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/use_subscriber.png" align="middle" width="432" alt="Use case diagram for a Subscriber"></div></div></div><br class="figure-break"><div class="figure"><a name="d0e476"></a><p class="title"><b>Figure&nbsp;8.&nbsp;Use case diagram for a NotificationConsumer</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/use_consumer.png" align="middle" width="432" alt="Use case diagram for a NotificationConsumer"></div></div></div><br class="figure-break"><div class="figure"><a name="d0e482"></a><p class="title"><b>Figure&nbsp;9.&nbsp;Use case diagram for QCG Notification</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/use_qcgnotification.png" align="middle" width="432" alt="Use case diagram for QCG Notification"></div></div></div><br class="figure-break"><div class="figure"><a name="d0e488"></a><p class="title"><b>Figure&nbsp;10.&nbsp;Use case diagram for a QCG Notification Administrator</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/use_administrator.png" align="middle" width="432" alt="Use case diagram for a QCG Notification Administrator"></div></div></div><br class="figure-break"></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e494"></a>2.2.2.&nbsp;Main Sequence Diagrams</h4></div></div></div><div class="figure"><a name="d0e497"></a><p class="title"><b>Figure&nbsp;11.&nbsp;General sequence diagram</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/seq_all.png" align="middle" width="432" alt="General sequence diagram"></div></div></div><br class="figure-break"></div></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="d0e503"></a>3.&nbsp;User Guide for a Publisher, Subscriber and
+      in a scenario and actions associated with that scenario.</p><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e461"></a>2.2.1.&nbsp;`Main Use Cases</h4></div></div></div><div class="figure"><a name="d0e464"></a><p class="title"><b>Figure&nbsp;6.&nbsp;Use case diagram for a Publisher</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/use_publisher.png" align="middle" width="432" alt="Use case diagram for a Publisher"></div></div></div><br class="figure-break"><div class="figure"><a name="d0e470"></a><p class="title"><b>Figure&nbsp;7.&nbsp;Use case diagram for a Subscriber</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/use_subscriber.png" align="middle" width="432" alt="Use case diagram for a Subscriber"></div></div></div><br class="figure-break"><div class="figure"><a name="d0e476"></a><p class="title"><b>Figure&nbsp;8.&nbsp;Use case diagram for a NotificationConsumer</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/use_consumer.png" align="middle" width="432" alt="Use case diagram for a NotificationConsumer"></div></div></div><br class="figure-break"><div class="figure"><a name="d0e482"></a><p class="title"><b>Figure&nbsp;9.&nbsp;Use case diagram for QCG Notification</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/use_qcgnotification.png" align="middle" width="432" alt="Use case diagram for QCG Notification"></div></div></div><br class="figure-break"><div class="figure"><a name="d0e488"></a><p class="title"><b>Figure&nbsp;10.&nbsp;Use case diagram for a QCG Notification Administrator</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/use_administrator.png" align="middle" width="432" alt="Use case diagram for a QCG Notification Administrator"></div></div></div><br class="figure-break"></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e494"></a>2.2.2.&nbsp;Main Sequence Diagrams</h4></div></div></div><div class="figure"><a name="d0e497"></a><p class="title"><b>Figure&nbsp;11.&nbsp;General sequence diagram</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/seq_all.png" align="middle" width="432" alt="General sequence diagram"></div></div></div><br class="figure-break"></div></div></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="d0e503"></a>3.&nbsp;User Guide for a Publisher, Subscriber and
     NotificationConsumer<span class="emphasis"><em> </em></span></h2></div></div></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="d0e508"></a>3.1.&nbsp;Prefixes and Namespaces</h3></div></div></div><p>The following table presents namespaces tied with prefixes. The
       prefixes are used in example SOAP messages presented in the further
@@ -227 +227 @@
       Subscriber and NotificationConsumer. Although a conceptual style of
       interaction is described here in details, technical particularities of
-      constructing messages are presented later.</p><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e596"></a>3.2.1.&nbsp;Publisher Interaction</h4></div></div></div><div class="figure"><a name="d0e599"></a><p class="title"><b>Figure&nbsp;12.&nbsp;Publisher interaction sequence diagram</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/seq_publisher.png" align="middle" width="432" alt="Publisher interaction sequence diagram"></div></div></div><br class="figure-break"><p>In the most general configuration of the service, a Publisher
+      constructing messages are presented later.</p><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e596"></a>3.2.1.&nbsp;Publisher Interaction</h4></div></div></div><div class="figure"><a name="d0e599"></a><p class="title"><b>Figure&nbsp;12.&nbsp;Publisher interaction sequence diagram</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/seq_publisher.png" align="middle" width="432" alt="Publisher interaction sequence diagram"></div></div></div><br class="figure-break"><p>In the most general configuration of the service, a Publisher
         has to be registered before it starts sending Notifications. In this
         situation, a Publisher sends the RegisterPublisherRequest message to
@@ -238 +238 @@
         replaces the old one in CurrentMessages. After work, a Publisher
         should unregister himself by sending DestroyRegistration. This message
-        has to include a session ID likewise.</p></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e610"></a>3.2.2.&nbsp;Subscriber interaction</h4></div></div></div><div class="figure"><a name="d0e613"></a><p class="title"><b>Figure&nbsp;13.&nbsp;Subscriber interaction sequence diagram</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/seq_subscriber.png" align="middle" width="432" alt="Subscriber interaction sequence diagram"></div></div></div><br class="figure-break"><p>When a Subscriber wants to create a Subscription, it sends the
+        has to include a session ID likewise.</p></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e610"></a>3.2.2.&nbsp;Subscriber interaction</h4></div></div></div><div class="figure"><a name="d0e613"></a><p class="title"><b>Figure&nbsp;13.&nbsp;Subscriber interaction sequence diagram</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/seq_subscriber.png" align="middle" width="432" alt="Subscriber interaction sequence diagram"></div></div></div><br class="figure-break"><p>When a Subscriber wants to create a Subscription, it sends the
         SubscribeRequest message to <span class="emphasis"><em>QCG Notification</em></span>.
         This message should contain an address of NotificationConsumer and a
@@ -258 +258 @@
         PullPoint resource can be destroyed by the DestroyPullPoint message
         sent directly to this resource.
-        </em></span></em></span></em></span></p></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e635"></a>3.2.3.&nbsp;NotificationConsumer Interaction</h4></div></div></div><div class="figure"><a name="d0e639"></a><p class="title"><b>Figure&nbsp;14.&nbsp;NotificationConsumer interaction sequence diagram</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="./diagrams/seq_consumer.png" align="middle" width="432" alt="NotificationConsumer interaction sequence diagram"></div></div></div><p><br class="figure-break">The main capability of a NotificationConsumer is a
+        </em></span></em></span></em></span></p></div><div class="sect3" lang="en"><div class="titlepage"><div><div><h4 class="title"><a name="d0e635"></a>3.2.3.&nbsp;NotificationConsumer Interaction</h4></div></div></div><div class="figure"><a name="d0e639"></a><p class="title"><b>Figure&nbsp;14.&nbsp;NotificationConsumer interaction sequence diagram</b></p><div class="figure-contents"><div class="mediaobject" align="center"><img src="http://apps.man.poznan.pl/trac/qcg-notification/raw-attachment/wiki/WikiStart/./diagrams/seq_consumer.png" align="middle" width="432" alt="NotificationConsumer interaction sequence diagram"></div></div></div><p><br class="figure-break">The main capability of a NotificationConsumer is a
         receiving of Notify messages. A NotificationConsumer can implement an
         interface for receiving Notify messages sending by <span class="emphasis"><em>QCG