spring-data-examples/geode/function-invocation/README.md

Function Invocation Example

In this example a Pivotal GemFire / Apache Geode client will invoke remote functions registered on the server.

To run the example simply run the tests located under function-invocation/src/test in your IDE.

The client is configured to connect to the deployed/started server on localhost port 40404.

Running the example

The example is broken up into multiple steps:

1. Insert (Put) three Customer entries into the Customers region using the repositories save method.
2. Insert (Put) three Product entries into the Products region using the repositories save method.
3. Insert (Put) 100 Order entries into the Orders region using the repositories save method.

Your output from the test functionsExecuteCorrectly should look similar to the following:

Inserting 3 entries for keys: 1, 2, 3
[FORK] - [info 2019/09/06 09:24:49.274 PDT <ServerConnection on port 49925 Thread 0> tid=0x47] In region [Customers] created key [1] value [Customer(id=1, emailAddress=EmailAddress(value=2@2.com), firstName=John, lastName=Smith)]
[FORK] - 
[FORK] - [info 2019/09/06 09:24:49.278 PDT <ServerConnection on port 49925 Thread 0> tid=0x47] In region [Customers] created key [2] value [Customer(id=2, emailAddress=EmailAddress(value=3@3.com), firstName=Frank, lastName=Lamport)]
[FORK] - 
[FORK] - [info 2019/09/06 09:24:49.279 PDT <ServerConnection on port 49925 Thread 0> tid=0x47] In region [Customers] created key [3] value [Customer(id=3, emailAddress=EmailAddress(value=5@5.com), firstName=Jude, lastName=Simmons)]
[FORK] - 
All customers for emailAddresses:3@3.com,2@2.com using function invocation: 
	 [Customer(id=2, emailAddress=EmailAddress(value=3@3.com), firstName=Frank, lastName=Lamport), Customer(id=1, emailAddress=EmailAddress(value=2@2.com), firstName=John, lastName=Smith)]
Running function to sum up all product prices: 
	1499.97
Running function to sum up all order lineItems prices for order 1: 
	2399.96
For order: 
	 Order(id=1, customerId=3, billingAddress=Address(street=it, city=doesn't, country=matter), shippingAddress=Address(street=it, city=doesn't, country=matter)) 
	LineItems:[Purchased 1 of Product Apple macBook at 899.99 for total of 899.99, Purchased 3 of Product Apple iPad at 499.99 for total of 1499.97]

NOTE: Inorder to see output, you must change the loglevel from "error" to "info" in the logback.xml file located under src/test/resources.

NOTE: Number of products purchased and total cost may vary from the above run as they are determined randomly.