STAT-241: added logic implementation (no UI yet) to track user presen…

…ce time in site. This is disabled by default. To enable need to add to sakai.properties: [email protected]=true

git-svn-id: https://source.sakaiproject.org/svn/sitestats/trunk@78188 66ffb92e-73f9-0310-93c1-f5514f145a0a

sitestats/schema/db-tables/db2/sitestats.sql

@@ -1,6 +1,7 @@
 create table SST_EVENTS (ID bigint generated by default as identity, USER_ID varchar(99) not null, SITE_ID varchar(99) not null, EVENT_ID varchar(32) not null, EVENT_DATE date not null, EVENT_COUNT bigint not null, primary key (ID));
 create table SST_JOB_RUN (ID bigint generated by default as identity, JOB_START_DATE timestamp, JOB_END_DATE timestamp, START_EVENT_ID bigint, END_EVENT_ID bigint, LAST_EVENT_DATE timestamp, primary key (ID));
 create table SST_PREFERENCES (ID bigint generated by default as identity, SITE_ID varchar(99) not null, PREFS clob(255) not null, primary key (ID));
+create table SST_PRESENCES (ID bigint generated by default as identity, SITE_ID varchar(99) not null, USER_ID varchar(99) not null, DATE date not null, DURATION bigint default 0 not null, LAST_VISIT_START_TIME timestamp default null, primary key (ID));
 create table SST_REPORTS (ID bigint generated by default as identity, SITE_ID varchar(99), TITLE varchar(255) not null, DESCRIPTION clob(2147483647), HIDDEN smallint, REPORT_DEF clob(255) not null, CREATED_BY varchar(99) not null, CREATED_ON timestamp not null, MODIFIED_BY varchar(99), MODIFIED_ON timestamp, primary key (ID));
 create table SST_RESOURCES (ID bigint generated by default as identity, USER_ID varchar(99) not null, SITE_ID varchar(99) not null, RESOURCE_REF varchar(255) not null, RESOURCE_ACTION varchar(12) not null, RESOURCE_DATE date not null, RESOURCE_COUNT bigint not null, primary key (ID));
 create table SST_SITEACTIVITY (ID bigint generated by default as identity, SITE_ID varchar(99) not null, ACTIVITY_DATE date not null, EVENT_ID varchar(32) not null, ACTIVITY_COUNT bigint not null, primary key (ID));
@@ -11,6 +12,10 @@ create index SST_EVENTS_SITEEVENTUSER_ID_IX on SST_EVENTS (USER_ID, SITE_ID, EVE
 create index SST_EVENTS_EVENT_ID_IX on SST_EVENTS (EVENT_ID);
 create index SST_EVENTS_DATE_IX on SST_EVENTS (EVENT_DATE);
 create index SST_PREFERENCES_SITE_ID_IX on SST_PREFERENCES (SITE_ID);
+create index SST_PRESENCE_DATE_IX on SST_PRESENCES (DATE);
+create index SST_PRESENCE_USER_ID_IX on SST_PRESENCES (USER_ID);
+create index SST_PRESENCE_SITE_ID_IX on SST_PRESENCES (SITE_ID);
+create index SST_PRESENCE_SITEUSERDATE_ID_IX on SST_PRESENCES (SITE_ID, USER_ID, DATE);
 create index SST_REPORTS_SITE_ID_IX on SST_REPORTS (SITE_ID);
 create index SST_RESOURCES_USER_ID_IX on SST_RESOURCES (USER_ID);
 create index SST_RESOURCES_SITE_ID_IX on SST_RESOURCES (SITE_ID);

sitestats/schema/db-tables/derby/sitestats.sql

@@ -1,6 +1,7 @@
 create table SST_EVENTS (ID bigint not null, USER_ID varchar(99) not null, SITE_ID varchar(99) not null, EVENT_ID varchar(32) not null, EVENT_DATE date not null, EVENT_COUNT bigint not null, primary key (ID));
 create table SST_JOB_RUN (ID bigint not null, JOB_START_DATE timestamp, JOB_END_DATE timestamp, START_EVENT_ID bigint, END_EVENT_ID bigint, LAST_EVENT_DATE timestamp, primary key (ID));
 create table SST_PREFERENCES (ID bigint not null, SITE_ID varchar(99) not null, PREFS clob(255) not null, primary key (ID));
+create table SST_PRESENCES (ID bigint not null, SITE_ID varchar(99) not null, USER_ID varchar(99) not null, DATE date not null, DURATION bigint default 0 not null, LAST_VISIT_START_TIME timestamp default null, primary key (ID));
 create table SST_REPORTS (ID bigint not null, SITE_ID varchar(99), TITLE varchar(255) not null, DESCRIPTION clob(2147483647), HIDDEN smallint, REPORT_DEF clob(255) not null, CREATED_BY varchar(99) not null, CREATED_ON timestamp not null, MODIFIED_BY varchar(99), MODIFIED_ON timestamp, primary key (ID));
 create table SST_RESOURCES (ID bigint not null, USER_ID varchar(99) not null, SITE_ID varchar(99) not null, RESOURCE_REF varchar(255) not null, RESOURCE_ACTION varchar(12) not null, RESOURCE_DATE date not null, RESOURCE_COUNT bigint not null, primary key (ID));
 create table SST_SITEACTIVITY (ID bigint not null, SITE_ID varchar(99) not null, ACTIVITY_DATE date not null, EVENT_ID varchar(32) not null, ACTIVITY_COUNT bigint not null, primary key (ID));
@@ -11,6 +12,10 @@ create index SST_EVENTS_SITEEVENTUSER_ID_IX on SST_EVENTS (USER_ID, SITE_ID, EVE
 create index SST_EVENTS_EVENT_ID_IX on SST_EVENTS (EVENT_ID);
 create index SST_EVENTS_DATE_IX on SST_EVENTS (EVENT_DATE);
 create index SST_PREFERENCES_SITE_ID_IX on SST_PREFERENCES (SITE_ID);
+create index SST_PRESENCE_DATE_IX on SST_PRESENCES (DATE);
+create index SST_PRESENCE_USER_ID_IX on SST_PRESENCES (USER_ID);
+create index SST_PRESENCE_SITE_ID_IX on SST_PRESENCES (SITE_ID);
+create index SST_PRESENCE_SITEUSERDATE_ID_IX on SST_PRESENCES (SITE_ID, USER_ID, DATE);
 create index SST_REPORTS_SITE_ID_IX on SST_REPORTS (SITE_ID);
 create index SST_RESOURCES_USER_ID_IX on SST_RESOURCES (USER_ID);
 create index SST_RESOURCES_SITE_ID_IX on SST_RESOURCES (SITE_ID);

sitestats/schema/db-tables/hsqldb/sitestats.sql

@@ -1,6 +1,7 @@
 create table SST_EVENTS (ID bigint generated by default as identity (start with 1), USER_ID varchar(99) not null, SITE_ID varchar(99) not null, EVENT_ID varchar(32) not null, EVENT_DATE date not null, EVENT_COUNT bigint not null, primary key (ID));
 create table SST_JOB_RUN (ID bigint generated by default as identity (start with 1), JOB_START_DATE timestamp, JOB_END_DATE timestamp, START_EVENT_ID bigint, END_EVENT_ID bigint, LAST_EVENT_DATE timestamp, primary key (ID));
 create table SST_PREFERENCES (ID bigint generated by default as identity (start with 1), SITE_ID varchar(99) not null, PREFS longvarchar not null, primary key (ID));
+create table SST_PRESENCES (ID bigint generated by default as identity (start with 1), SITE_ID varchar(99) not null, USER_ID varchar(99) not null, DATE date not null, DURATION bigint default 0 not null, LAST_VISIT_START_TIME timestamp default null, primary key (ID));
 create table SST_REPORTS (ID bigint generated by default as identity (start with 1), SITE_ID varchar(99), TITLE varchar(255) not null, DESCRIPTION longvarchar, HIDDEN bit, REPORT_DEF longvarchar not null, CREATED_BY varchar(99) not null, CREATED_ON timestamp not null, MODIFIED_BY varchar(99), MODIFIED_ON timestamp, primary key (ID));
 create table SST_RESOURCES (ID bigint generated by default as identity (start with 1), USER_ID varchar(99) not null, SITE_ID varchar(99) not null, RESOURCE_REF varchar(255) not null, RESOURCE_ACTION varchar(12) not null, RESOURCE_DATE date not null, RESOURCE_COUNT bigint not null, primary key (ID));
 create table SST_SITEACTIVITY (ID bigint generated by default as identity (start with 1), SITE_ID varchar(99) not null, ACTIVITY_DATE date not null, EVENT_ID varchar(32) not null, ACTIVITY_COUNT bigint not null, primary key (ID));
@@ -11,6 +12,10 @@ create index SST_EVENTS_SITEEVENTUSER_ID_IX on SST_EVENTS (USER_ID, SITE_ID, EVE
 create index SST_EVENTS_EVENT_ID_IX on SST_EVENTS (EVENT_ID);
 create index SST_EVENTS_DATE_IX on SST_EVENTS (EVENT_DATE);
 create index SST_PREFERENCES_SITE_ID_IX on SST_PREFERENCES (SITE_ID);
+create index SST_PRESENCE_DATE_IX on SST_PRESENCES (DATE);
+create index SST_PRESENCE_USER_ID_IX on SST_PRESENCES (USER_ID);
+create index SST_PRESENCE_SITE_ID_IX on SST_PRESENCES (SITE_ID);
+create index SST_PRESENCE_SITEUSERDATE_ID_IX on SST_PRESENCES (SITE_ID, USER_ID, DATE);
 create index SST_REPORTS_SITE_ID_IX on SST_REPORTS (SITE_ID);
 create index SST_RESOURCES_USER_ID_IX on SST_RESOURCES (USER_ID);
 create index SST_RESOURCES_SITE_ID_IX on SST_RESOURCES (SITE_ID);

sitestats/schema/db-tables/mssql/sitestats.sql

@@ -1,6 +1,7 @@
 create table SST_EVENTS (ID numeric(19,0) identity not null, USER_ID varchar(99) not null, SITE_ID varchar(99) not null, EVENT_ID varchar(32) not null, EVENT_DATE datetime not null, EVENT_COUNT numeric(19,0) not null, primary key (ID));
 create table SST_JOB_RUN (ID numeric(19,0) identity not null, JOB_START_DATE datetime null, JOB_END_DATE datetime null, START_EVENT_ID numeric(19,0) null, END_EVENT_ID numeric(19,0) null, LAST_EVENT_DATE datetime null, primary key (ID));
 create table SST_PREFERENCES (ID numeric(19,0) identity not null, SITE_ID varchar(99) not null, PREFS text not null, primary key (ID));
+create table SST_PRESENCES (ID numeric(19,0) identity not null, SITE_ID varchar(99) not null, USER_ID varchar(99) not null, DATE datetime not null, DURATION numeric(19,0) default 0 not null, LAST_VISIT_START_TIME datetime default null null, primary key (ID));
 create table SST_REPORTS (ID numeric(19,0) identity not null, SITE_ID varchar(99) null, TITLE varchar(255) not null, DESCRIPTION text null, HIDDEN tinyint null, REPORT_DEF text not null, CREATED_BY varchar(99) not null, CREATED_ON datetime not null, MODIFIED_BY varchar(99) null, MODIFIED_ON datetime null, primary key (ID));
 create table SST_RESOURCES (ID numeric(19,0) identity not null, USER_ID varchar(99) not null, SITE_ID varchar(99) not null, RESOURCE_REF varchar(255) not null, RESOURCE_ACTION varchar(12) not null, RESOURCE_DATE datetime not null, RESOURCE_COUNT numeric(19,0) not null, primary key (ID));
 create table SST_SITEACTIVITY (ID numeric(19,0) identity not null, SITE_ID varchar(99) not null, ACTIVITY_DATE datetime not null, EVENT_ID varchar(32) not null, ACTIVITY_COUNT numeric(19,0) not null, primary key (ID));
@@ -11,6 +12,10 @@ create index SST_EVENTS_SITEEVENTUSER_ID_IX on SST_EVENTS (USER_ID, SITE_ID, EVE
 create index SST_EVENTS_EVENT_ID_IX on SST_EVENTS (EVENT_ID);
 create index SST_EVENTS_DATE_IX on SST_EVENTS (EVENT_DATE);
 create index SST_PREFERENCES_SITE_ID_IX on SST_PREFERENCES (SITE_ID);
+create index SST_PRESENCE_DATE_IX on SST_PRESENCES (DATE);
+create index SST_PRESENCE_USER_ID_IX on SST_PRESENCES (USER_ID);
+create index SST_PRESENCE_SITE_ID_IX on SST_PRESENCES (SITE_ID);
+create index SST_PRESENCE_SITEUSERDATE_ID_IX on SST_PRESENCES (SITE_ID, USER_ID, DATE);
 create index SST_REPORTS_SITE_ID_IX on SST_REPORTS (SITE_ID);
 create index SST_RESOURCES_USER_ID_IX on SST_RESOURCES (USER_ID);
 create index SST_RESOURCES_SITE_ID_IX on SST_RESOURCES (SITE_ID);

sitestats/schema/db-tables/mysql/sitestats.sql

@@ -1,6 +1,7 @@
 create table SST_EVENTS (ID bigint not null auto_increment, USER_ID varchar(99) not null, SITE_ID varchar(99) not null, EVENT_ID varchar(32) not null, EVENT_DATE date not null, EVENT_COUNT bigint not null, primary key (ID));
 create table SST_JOB_RUN (ID bigint not null auto_increment, JOB_START_DATE datetime, JOB_END_DATE datetime, START_EVENT_ID bigint, END_EVENT_ID bigint, LAST_EVENT_DATE datetime, primary key (ID));
 create table SST_PREFERENCES (ID bigint not null auto_increment, SITE_ID varchar(99) not null, PREFS text not null, primary key (ID));
+create table SST_PRESENCES (ID bigint not null auto_increment, SITE_ID varchar(99) not null, USER_ID varchar(99) not null, DATE date not null, DURATION bigint default 0 not null, LAST_VISIT_START_TIME datetime default null, primary key (ID));
 create table SST_REPORTS (ID bigint not null auto_increment, SITE_ID varchar(99), TITLE varchar(255) not null, DESCRIPTION longtext, HIDDEN bit, REPORT_DEF text not null, CREATED_BY varchar(99) not null, CREATED_ON datetime not null, MODIFIED_BY varchar(99), MODIFIED_ON datetime, primary key (ID));
 create table SST_RESOURCES (ID bigint not null auto_increment, USER_ID varchar(99) not null, SITE_ID varchar(99) not null, RESOURCE_REF varchar(255) not null, RESOURCE_ACTION varchar(12) not null, RESOURCE_DATE date not null, RESOURCE_COUNT bigint not null, primary key (ID));
 create table SST_SITEACTIVITY (ID bigint not null auto_increment, SITE_ID varchar(99) not null, ACTIVITY_DATE date not null, EVENT_ID varchar(32) not null, ACTIVITY_COUNT bigint not null, primary key (ID));
@@ -11,6 +12,10 @@ create index SST_EVENTS_SITEEVENTUSER_ID_IX on SST_EVENTS (USER_ID, SITE_ID, EVE
 create index SST_EVENTS_EVENT_ID_IX on SST_EVENTS (EVENT_ID);
 create index SST_EVENTS_DATE_IX on SST_EVENTS (EVENT_DATE);
 create index SST_PREFERENCES_SITE_ID_IX on SST_PREFERENCES (SITE_ID);
+create index SST_PRESENCE_DATE_IX on SST_PRESENCES (DATE);
+create index SST_PRESENCE_USER_ID_IX on SST_PRESENCES (USER_ID);
+create index SST_PRESENCE_SITE_ID_IX on SST_PRESENCES (SITE_ID);
+create index SST_PRESENCE_SITEUSERDATE_ID_IX on SST_PRESENCES (SITE_ID, USER_ID, DATE);
 create index SST_REPORTS_SITE_ID_IX on SST_REPORTS (SITE_ID);
 create index SST_RESOURCES_USER_ID_IX on SST_RESOURCES (USER_ID);
 create index SST_RESOURCES_SITE_ID_IX on SST_RESOURCES (SITE_ID);

sitestats/schema/db-tables/oracle/sitestats.sql

@@ -1,6 +1,7 @@
 create table SST_EVENTS (ID number(19,0) not null, USER_ID varchar2(99 char) not null, SITE_ID varchar2(99 char) not null, EVENT_ID varchar2(32 char) not null, EVENT_DATE date not null, EVENT_COUNT number(19,0) not null, primary key (ID));
 create table SST_JOB_RUN (ID number(19,0) not null, JOB_START_DATE timestamp, JOB_END_DATE timestamp, START_EVENT_ID number(19,0), END_EVENT_ID number(19,0), LAST_EVENT_DATE timestamp, primary key (ID));
 create table SST_PREFERENCES (ID number(19,0) not null, SITE_ID varchar2(99 char) not null, PREFS clob not null, primary key (ID));
+create table SST_PRESENCES (ID number(19,0) not null, SITE_ID varchar2(99 char) not null, USER_ID varchar2(99 char) not null, DATE date not null, DURATION number(19,0) default 0 not null, LAST_VISIT_START_TIME timestamp default null, primary key (ID));
 create table SST_REPORTS (ID number(19,0) not null, SITE_ID varchar2(99 char), TITLE varchar2(255 char) not null, DESCRIPTION clob, HIDDEN number(1,0), REPORT_DEF clob not null, CREATED_BY varchar2(99 char) not null, CREATED_ON timestamp not null, MODIFIED_BY varchar2(99 char), MODIFIED_ON timestamp, primary key (ID));
 create table SST_RESOURCES (ID number(19,0) not null, USER_ID varchar2(99 char) not null, SITE_ID varchar2(99 char) not null, RESOURCE_REF varchar2(255 char) not null, RESOURCE_ACTION varchar2(12 char) not null, RESOURCE_DATE date not null, RESOURCE_COUNT number(19,0) not null, primary key (ID));
 create table SST_SITEACTIVITY (ID number(19,0) not null, SITE_ID varchar2(99 char) not null, ACTIVITY_DATE date not null, EVENT_ID varchar2(32 char) not null, ACTIVITY_COUNT number(19,0) not null, primary key (ID));
@@ -11,6 +12,10 @@ create index SST_EVENTS_SITEEVENTUSER_ID_IX on SST_EVENTS (USER_ID, SITE_ID, EVE
 create index SST_EVENTS_EVENT_ID_IX on SST_EVENTS (EVENT_ID);
 create index SST_EVENTS_DATE_IX on SST_EVENTS (EVENT_DATE);
 create index SST_PREFERENCES_SITE_ID_IX on SST_PREFERENCES (SITE_ID);
+create index SST_PRESENCE_DATE_IX on SST_PRESENCES (DATE);
+create index SST_PRESENCE_USER_ID_IX on SST_PRESENCES (USER_ID);
+create index SST_PRESENCE_SITE_ID_IX on SST_PRESENCES (SITE_ID);
+create index SST_PRESENCE_SITEUSERDATE_ID_IX on SST_PRESENCES (SITE_ID, USER_ID, DATE);
 create index SST_REPORTS_SITE_ID_IX on SST_REPORTS (SITE_ID);
 create index SST_RESOURCES_USER_ID_IX on SST_RESOURCES (USER_ID);
 create index SST_RESOURCES_SITE_ID_IX on SST_RESOURCES (SITE_ID);
@@ -24,6 +29,7 @@ create index SST_SITEVISITS_SITE_ID_IX on SST_SITEVISITS (SITE_ID);
 create sequence SST_EVENTS_ID;
 create sequence SST_JOB_RUN_ID;
 create sequence SST_PREFERENCES_ID;
+create sequence SST_PRESENCE_ID;
 create sequence SST_REPORTS_ID;
 create sequence SST_RESOURCES_ID;
 create sequence SST_SITEACTIVITY_ID;

sitestats/schema/db-tables/postgres/sitestats.sql

@@ -1,6 +1,7 @@
 create table SST_EVENTS (ID int8 not null, USER_ID varchar(99) not null, SITE_ID varchar(99) not null, EVENT_ID varchar(32) not null, EVENT_DATE date not null, EVENT_COUNT int8 not null, primary key (ID));
 create table SST_JOB_RUN (ID int8 not null, JOB_START_DATE timestamp, JOB_END_DATE timestamp, START_EVENT_ID int8, END_EVENT_ID int8, LAST_EVENT_DATE timestamp, primary key (ID));
 create table SST_PREFERENCES (ID int8 not null, SITE_ID varchar(99) not null, PREFS text not null, primary key (ID));
+create table SST_PRESENCES (ID int8 not null, SITE_ID varchar(99) not null, USER_ID varchar(99) not null, DATE date not null, DURATION int8 default 0 not null, LAST_VISIT_START_TIME timestamp default null, primary key (ID));
 create table SST_REPORTS (ID int8 not null, SITE_ID varchar(99), TITLE varchar(255) not null, DESCRIPTION text, HIDDEN bool, REPORT_DEF text not null, CREATED_BY varchar(99) not null, CREATED_ON timestamp not null, MODIFIED_BY varchar(99), MODIFIED_ON timestamp, primary key (ID));
 create table SST_RESOURCES (ID int8 not null, USER_ID varchar(99) not null, SITE_ID varchar(99) not null, RESOURCE_REF varchar(255) not null, RESOURCE_ACTION varchar(12) not null, RESOURCE_DATE date not null, RESOURCE_COUNT int8 not null, primary key (ID));
 create table SST_SITEACTIVITY (ID int8 not null, SITE_ID varchar(99) not null, ACTIVITY_DATE date not null, EVENT_ID varchar(32) not null, ACTIVITY_COUNT int8 not null, primary key (ID));
@@ -11,6 +12,10 @@ create index SST_EVENTS_SITEEVENTUSER_ID_IX on SST_EVENTS (USER_ID, SITE_ID, EVE
 create index SST_EVENTS_EVENT_ID_IX on SST_EVENTS (EVENT_ID);
 create index SST_EVENTS_DATE_IX on SST_EVENTS (EVENT_DATE);
 create index SST_PREFERENCES_SITE_ID_IX on SST_PREFERENCES (SITE_ID);
+create index SST_PRESENCE_DATE_IX on SST_PRESENCES (DATE);
+create index SST_PRESENCE_USER_ID_IX on SST_PRESENCES (USER_ID);
+create index SST_PRESENCE_SITE_ID_IX on SST_PRESENCES (SITE_ID);
+create index SST_PRESENCE_SITEUSERDATE_ID_IX on SST_PRESENCES (SITE_ID, USER_ID, DATE);
 create index SST_REPORTS_SITE_ID_IX on SST_REPORTS (SITE_ID);
 create index SST_RESOURCES_USER_ID_IX on SST_RESOURCES (USER_ID);
 create index SST_RESOURCES_SITE_ID_IX on SST_RESOURCES (SITE_ID);
@@ -24,6 +29,7 @@ create index SST_SITEVISITS_SITE_ID_IX on SST_SITEVISITS (SITE_ID);
 create sequence SST_EVENTS_ID;
 create sequence SST_JOB_RUN_ID;
 create sequence SST_PREFERENCES_ID;
+create sequence SST_PRESENCE_ID;
 create sequence SST_REPORTS_ID;
 create sequence SST_RESOURCES_ID;
 create sequence SST_SITEACTIVITY_ID;

sitestats/sitestats-api/src/java/org/sakaiproject/sitestats/api/SitePresence.java

@@ -0,0 +1,40 @@
+/**
+ * $URL$
+ * $Id$
+ *
+ * Copyright (c) 2006-2009 The Sakai Foundation
+ *
+ * Licensed under the Educational Community License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *             http://www.osedu.org/licenses/ECL-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.sakaiproject.sitestats.api;
+
+import java.util.Date;
+
+/**
+ * Record with time spent in site, by date and user.
+ * @author Nuno Fernandes
+ */
+public interface SitePresence extends Stat {
+
+	/** Get time spent (in milliseconds) */
+	public long getDuration();
+
+	/** Set time spent (in milliseconds) */
+	public void setDuration(long duration);
+
+	/** Get (temporary) last visit start time */
+	public Date getLastVisitStartTime();
+
+	/** Set (temporary) last visit start time */
+	public void setLastVisitStartTime(Date lastVisitStartTime);
+}

sitestats/sitestats-api/src/java/org/sakaiproject/sitestats/api/StatsManager.java

@@ -36,6 +36,9 @@ public interface StatsManager {
 	public final static int				PREFS_RESOURCES_PAGE		= 2;
 	public final static String			SEPARATOR					= "/";
 	public final static String			SITEVISIT_EVENTID			= "pres.begin";
+	public final static String			SITEVISITEND_EVENTID		= "pres.end";
+	public final static String			LOGIN_EVENTID				= "user.login";
+	public final static String			LOGOUT_EVENTID				= "user.logout";
 	public final static String			RESOURCE_EVENTID_PREFIX		= "content.";
 	public final static String			SITESTATS_TOOLID			= "sakai.sitestats";
 	public final static String			SITESTATS_ADMIN_TOOLID		= "sakai.sitestats.admin";
@@ -107,7 +110,10 @@ public interface StatsManager {
 	public boolean isVisitsInfoAvailable();
 
 	/** Are Resource statistics enabled for Overview page? */
-	public boolean isEnableResourceStats();
+	public boolean isEnableResourceStats();	
+
+	/** Are site presence statistics enabled? */
+	public boolean isEnableSitePresences();
 
 	/** Get chart background color used to draw charts on SiteStats tool. */
 	public String getChartBackgroundColor();