The document outlines a webinar on WSO2 Analytics Platform, covering extensions like real-time, batch, and predictive analytics along with event receivers and publishers. It highlights the platform's benefits through real-world case studies and showcases various features, including custom functions, dataset processors, and data source connectors. The conclusion emphasizes upcoming improvements and features in the next release of the Analytics Platform.

1. Webinar: Extending WSO2 Analytics
Platform
Mohanadarshan Vivekanandalingam
Associate Technical Lead

2. Agenda
● Introduction to WSO2 analytics platform
● Examine extensions including
○ Real-time analytics (Siddhi extension)
○ Batch analytics extensions
○ Event Receiver and Event Publisher extensions
○ Predictive analytics extensions
● Outline the benefits of WSO2’s analytics platform through
real-world customer use cases.
2

3. WSO2 Data Analytics Server
3

4. WSO2 Data Analytics Server
4
• Fully-open source solution with the ability to build systems and
applications that collect and analyze both realtime and persisted data and
communicate the results.
• High performance data capture framework
• Highly available and scalable by design
• Pre-built Data Agents for WSO2 products

5. Real-time Analytics
5

6. Realtime Analytics Extensions
6
●This includes Siddhi Extensions
■ Custom Function
■ Custom Window
■ Custom Aggregate
■ Custom Stream Function
■ Custom Stream Processor

7. Function Extension
7
● Consumes zero or more parameters for each event and output a single
attribute as an output.
● This could be used to manipulate event attributes to generate new
attribute like Function operator.
● Extend org.wso2.siddhi.core.executor.function.FunctionExecutor
from InValueStream
select math:sin(inValue) as sinValue
insert into OutMediationStream;

8. Window Extension
8
● Allows events to be collected and expired without altering the event
format based on the given input parameters like the Window operator.
● Default Window types - Length, Time, Unique and etc..
● Extend org.wso2.siddhi.core.query.processor.stream.window.WindowProcessor
from TempStream#window.custom:customWindow(10)
select *
insert into AvgRoomTempStream ;

9. Aggregate Extension
9
● Consumes zero or more parameters for each event and output a single
attribute (having an aggregated results based in the input parameters as
an output).
● Used with conjunction with a window in order to find the aggregated
results based on the given window.
● Default Aggregators - sum, max, avg and etc..
● Extend org.wso2.siddhi.core.query.selector.attribute.aggregator.AttributeAggregator
from pizzaOrder#window.length(20)
select custom:count(orderNo) as totalOrders
insert into orderCount;

10. Stream Function Extension
10
● Allows events to be altered by adding one or more attributes to it. (Simply,
can output multiple outputs)
● Events can be output upon each event arrival
● Extend org.wso2.siddhi.core.query.processor.stream.function.StreamFunctionProcessor
from geocodeStream#geo:geocode(location)
select latitude, longitude, formattedAddress
insert into dataOut;

11. Stream Processor Extension
11
● Allows to alter an event format
● Considered as Window++
● Extend org.wso2.siddhi.core.query.processor.stream.StreamProcessor
from baseballData#timeseries:regress(2, 10000, 0.95, salary,
rbi, walks, strikeouts, errors)
select *
insert into regResults;

12. Batch Analytics Extension
12
•User Defined Functions (UDF)
•Aggregators for Lucene Indexing
•DataSource Connectors (Eg: HBase, Cassandra & etc..)

13. User Defined Functions (UDF)
13
● Apache Spark allows UDFs (User Defined Functions) to be created if you
want want to use a feature that is not available for Spark by default.
public class StringConcatonator implements CarbonUDF {
/**
This UDF returns the concatenation of two strings
*/
public String concat(String firstString, String secondString) {
return firstString + secondString;
}
}
• Add below to DAS_HOME/repository/conf/analytics/spark/spark-udf-config.xml
<udf-configuration>
<custom-udf-classes> <class-name>org.wso2.customUDFs.
StringConcatonator</class-name>
...
</custom-udf-classes>
</udf-configuration>

14. Aggregators for Lucene Indexing
14
WSO2 DAS contains 5 default Lucene based aggregated functions.
● MIN
● MAX
● SUM
● AVG
● COUNT
Users can add custom aggregator function for Lucene by extending below
interface.
org.wso2.carbon.analytics.dataservice.core.indexing.aggregates.AggregateFunction
(DAS 3.1.0 onwards)
Refer mail thread - [Architecture] [Analytics] Improvements to Lucene based Aggregate functions (Installing Aggregates as OSGI components)

15. Datasource Connectors
15
DAS supports below datasource connectors by default.
● RDBMS
● Cassandra
● HBASE
● HDFS
Extension can be written by implementing the below interface,
org.wso2.carbon.analytics.datasource.core.rs.AnalyticsRecordStore
https://docs.wso2.com/display/DAS310/Configuring+Data+Persistence

16. Predictive Analytics
16

17. Predictive Analytics Extensions
17
•Dataset Processors
•Input Adapters
•Model Builders
•Output Adapters

18. Input Adapters
18
● Used to read data from different storages such as files, HDFs and registry.
● Can create an ML Input Adapter by implementing the MLInputAdapter
interface.

19. Dataset Processors
19
● Each data source should have an implementation of DatasetProcessor.
● ML supports File, HDFS and DAS as data sources. Therefore we have the
following implementation classes.

20. Model Builders
20
● ML model generation can be extended by implementing
MLModelBuilders.
● Currently we have a supervised spark model builder and an unsupervised
spark model builder.
● If you need to extend model generation to some other library or a new
algorithm type, you can use this extension point of WSO2 ML.

21. Output Adapters
21
● Used to write data to different storages such as files, HDFS and registry.
● Can create an ML Output Adapter by implementing the MLOutputAdapter
interface.

22. Event Receiver Extensions
22
● Allows to receive events from different data sources..
● Implemented with OSGI whiteboard pattern.

23. Event Publisher Extensions
23
•Allows to push events to various data sinks.
•Implemented with OSGI whiteboard pattern.

24. Case Studies from Real Customers
24

25. Pacific Controls
Pacific Controls is an
innovative company
delivering an IoT platform
of platforms: Galaxy 2021.
The platform allows to
manage all kinds of devices
within a building and take
automated decisions such
as moving an elevator or
starting the air conditioning
based on certain
conditions. Within
Galaxy2021, CEP is used for
monitoring alarms and
specific conditions.Pacific
Controls also uses other
products from the WSO2
platform, such as WSO2
ESB and Identity Server.
https://www.youtube.com/watch?v=OG0N7cfaJ_8

26. UBER
http://www.infoq.com/presentations/uber-stream-processing
UBER uses WSO2 CEP to
detect fraud. P.S : Does not
pay for us (Opensource at
work ! ).

27. 27
A leading Airlines uses CEP to enhance customer experience by calculating the average time to reach their
boarding gate (going through security, walking, etc.). They also want to track the time it takes to clean a plane,
in order to better streamline the boarding process and notify both the airline and customers about potential
delays. They evaluated WSO2 CEP first as they were already using our platform and decided to use it as it
addressed all their requirements.
The Cleveland Clinic, ranked among the top 3 hospitals in the US, uses a Clinical Intelligence Platform that
combines big data storage, stream and batch processing to provide decision support to clinicians. Real-time
analytics for the platform is provided by WSO2 CEP along with custom extensions to handle healthcare data.

28. Few more use cases
28

29. 29
US Election Monitor https://wso2.com/election2016/

30. SUPER BOWL 50 - BigData Game
http://wso2.com/landing/big-data-game/

31. 31
Fraud Detection
31
• Use or change the generic rules we provide
and add as many rules as they like
• Change weights of Fraud Scoring Model to
suit their business needs
• Use the Markov Modelling and Clustering
capabilities to learn unknown Fraud
Patterns in their domain
• Use the dashboard provided or plug the
Fraud Detection Toolkit to their own Fraud
Detection UI
http://wso2.com/library/webinars/2015/02/catch-them-in-the-act-
fraud-detection-with-wso2-cep-and-wso2-bam/
https://www.youtube.com/watch?v=aLwG4thHOXg

32. ESB Analytics
ESB Analytics can be used to collect
statistics, debug, and profile your
mediation sequences.
https://docs.wso2.com/display/ESB500/ESB+Analytics

33. Conclusion
● Next WSO2 Analytics Platform release contains many bug fixes,
improvements and features.
○ Incremental Processing - Batch Analytics
○ Siddhi Performance Improvements - Realtime Analytics
○ Siddhi Debugger
○ Analytics features for ESB, APIM, IS, IOT and etc..
○ Cross Tenant Data Retrieval in Super Tenant Spark Queries
○ Custom Lucene Aggregators
● Stay tuned for next release and related updates.
33

34. CONTACT US !