Simulate Events for a Persisted Event Stream

Event simulation involves creating events in a predefined event stream by assigning values to the attributes in that event stream.

This tutorial demonstrates how to send a series of single events to a persisted event stream using the Event Stream Simulator tool.

Click the following topics for a description of the concepts that you need to understand when simulating single events.

Before you try this tutorial, do the following.

Create the BookStore event stream following the instructions in the Create Event Stream tutorial.
Persist the BookStore event stream following the instructions in the Persist Event Stream tutorial.

Follow the steps below to publish 15 single events in a persisted event stream.

In the WSO2 DAS Management Console, click on the Tools tab. Then click Event Simulator to open the Event Stream Simulator page.
In the Event Stream Name field, select the XXX event stream. The attributes in the stream are displayed as demonstrated below.

Simulate 10 events as given in the table below. Click Send to send each event.

Transaction_ID	Title	Author	Price	Quantity	Date	Discount	Value	_timestamp
`BSP0000001`	`The Invisible Man: A Grotesque Romance`	`Arthur,C,Clarke`	`6.66`	`12`	`2016-11-03`	`0`	`79.92`	`1478160425000`
`BSP0000002`	`Childhood's End`	`Arthur,C,Clarke`	`5.50`	`12`	`2016-10-06`	`0`	`66`	`1475741225000`
`BSP0000003`	`Oliver Twist`	`Charles,Dickens`	`6.96`	`20`	`2016-09-01`	`0`	`139.20`	`1472717225000`
`BSP0000004`	`Emma`	`Jane,Austen`	`6.73`	`20`	`2017-01-05`	`0`	`134.60`	`1483603625000`
`BSP0000005`	`Memoirs of a Geisha`	`Arthur,Golden`	`9.28`	`10`	`2017-02-02`	`0`	`92.80`	`1486022825000`
`BSP0000006`	`The Origin of Species`	`Charles,Darwin`	`6.25`	`20`	`2016-10-31`	`0`	`125`	`1477901225000`
`BSP0000007`	`The Adventures of Sherlock Holmes`	`Arthur,Conan,Doyle`	`6.00`	`15`	`2017-01-30`	`0.25`	`90`	`1485763627000`
`BSP0000008`	`A Study in Scarlet`	`Arthur,Conan,Doyle`	`5.00`	`15`	`2016-11-03`	`0.25`	`75`	`1478160426000`
`BSP0000009`	`Sherlock Holmes: The Complete Novels and Stories`	`Arthur,Conan,Doyle`	`9.50`	`30`	`2016-10-06`	`0.25`	`285`	`1475741226000`
`BSP0000010`	`Gone With the Wind`	`Margaret,Mitchell`	`6.83`	`20`	`2016-09-01`	`0`	`136.60`	`1472717226000`
`BSP0000011`	`Mary Called Magdalene`	`Margaret,George`	`7.00`	`10`	`2016-10-02`	`0.50`	`70`	`1506931625000`
`BSP0000012`	`Memoirs of Cleopatra`	`Margaret,George`	`7.00`	`10`	`2016-08-29`	`0.50`	`70`	`1503994025000`
`BSP0000013`	`Elizabeth I`	`Margaret,George`	`7.00`	`10`	`2017-01-30`	`0.50`	`70`	`1485763625000`
`BSP0000014`	`Sinatra: The Life`	`Anthony,Summers`	`10.00`	`5`	`2016-10-31`	`0`	`50`	`1477901227000`
`BSP0000015`	`1984`	`George,Orwell`	`6.99`	`20`	`2017-01-02`	`0`	`139.80`	`1483344425000`

The comma (,) separated values entered for the Author attribute define a hierarchy of categories when searching by the Author facet.

e.g., In the above table, the following three authors have the same first name.

Arthur,Conan,Doyle
Arthur,C,Clarke
Arthur,Golden

Here, Arthur is considered a main category of the Author facet. Conan, C, and Doyle are subcategories of the Arthur category. Doyle is a subcategory of the Conan subcategory.

This is further demonstrated in the Search for Records Via the Management Console tutorial.