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https://github.com/danielepalaia/simple-gemfire-client
A simple Gemfire client that can be used for demoes
https://github.com/danielepalaia/simple-gemfire-client
gemfire geode java
Last synced: 5 days ago
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A simple Gemfire client that can be used for demoes
- Host: GitHub
- URL: https://github.com/danielepalaia/simple-gemfire-client
- Owner: DanielePalaia
- Created: 2019-11-04T20:52:44.000Z (about 5 years ago)
- Default Branch: master
- Last Pushed: 2022-09-16T18:49:37.000Z (about 2 years ago)
- Last Synced: 2023-03-09T07:17:10.061Z (over 1 year ago)
- Topics: gemfire, geode, java
- Language: Java
- Homepage:
- Size: 106 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
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README
# Gemfire simple client
This is a simple Gemfire client which just populate some informations in regions.
Regions are populated by Italian cars (Alfa Romeo, FCA, Lancia)
Useful as demo or POC
Before starting it you mush create a Gemfire cluster
### Start a simple (non production ready) gemfire locator and a gemfire cache server and enable pdx
```
start locator --name=locator0 --port=10334
configure pdx --read-serialized=true
start server --name=node0 --locators=localhost[10334] --initial-heap=5g --max-heap=5g --critical-heap-percentage=90 --eviction-heap-percentage=80 --use-cluster-configuration=true
```
### Create now the regions Cars and Manufacturers:
```
create region --name=Cars --type=LOCAL
create region --name=Manufacturers --type=LOCAL
```
### Run the software (find in target directory the already compiled .jar) you should now see the regions populated in this way:
```
filling regions:
filling Cars region:
[info 2020/11/30 14:51:26.398 CET tid=0x1] Auto serializer generating type for class org.geode.test.RandomCar for fields:
price: private int org.geode.test.Car.price
idTag: private java.lang.String org.geode.test.Car.idTag
manufacturer: private java.lang.String org.geode.test.Car.manufacturer
model: private java.lang.String org.geode.test.Car.model
colour: private java.lang.String org.geode.test.Car.colour
DateImm: private java.lang.String org.geode.test.Car.DateImm
[info 2020/11/30 14:51:26.452 CET tid=0x1] Caching PdxType[dsid=0, typenum=15523259
name=org.geode.test.RandomCar
fields=[
price:int:0:idx0(relativeOffset)=0:idx1(vlfOffsetIndex)=0
idTag:String:1:idx0(relativeOffset)=4:idx1(vlfOffsetIndex)=-1
manufacturer:String:2:1:idx0(relativeOffset)=0:idx1(vlfOffsetIndex)=1
model:String:3:2:idx0(relativeOffset)=0:idx1(vlfOffsetIndex)=2
colour:String:4:3:idx0(relativeOffset)=0:idx1(vlfOffsetIndex)=3
DateImm:String:5:4:idx0(relativeOffset)=0:idx1(vlfOffsetIndex)=4]]
[info 2020/11/30 14:51:28.772 CET tid=0x1] Auto serializer generating type for class org.geode.test.Manufacturer for fields:
idTag: private java.lang.String org.geode.test.Manufacturer.idTag
name: private java.lang.String org.geode.test.Manufacturer.name
city: private java.lang.String org.geode.test.Manufacturer.city
[info 2020/11/30 14:51:28.777 CET tid=0x1] Caching PdxType[dsid=0, typenum=258145
name=org.geode.test.Manufacturer
fields=[
idTag:String:0:idx0(relativeOffset)=0:idx1(vlfOffsetIndex)=-1
name:String:1:1:idx0(relativeOffset)=0:idx1(vlfOffsetIndex)=1
city:String:2:2:idx0(relativeOffset)=0:idx1(vlfOffsetIndex)=2]]
cache and regions filled
```
You should see the regions populated and you can play with them
```
gfsh>query --query='select * from /Cars limit 5';
Result : true
Rows : 5
price | idTag | manufacturer | model | colour | DateImm
----- | ------------------------------------ | ------------ | --------- | ------ | -------
15000 | 59191a8c-c3f3-44b9-999c-ae4b07672bb3 | FCA | Punto | Yellow | 2015
20000 | c6ad49d1-98ef-4e3a-bae2-112420e72806 | Lancia | Y | White | 2014
25000 | 35d4ac8a-8400-4b8b-a298-4fdead5f36eb | Alfa Romeo | Giulietta | Red | 2013
25000 | f67ae05e-e25a-4bbc-94ed-24c5b6034dd4 | Alfa Romeo | Giulietta | Red | 2013
15000 | 6c25ee77-27b1-4492-b692-ec97c284b122 | FCA | Punto | Yellow | 2015
```
```
gfsh>query --query='select * from /Manufacturers';
Result : true
Limit : 100
Rows : 3
idTag | name | city
----- | --------- | ------
null | Lancia | Tourin
null | FCA | Tourin
null | Alfa Rome | Tourin
```