JSON database is a single file database that stores information in the form of JSON. Program uses java sockets to get a jsons from clients. JSON-files are stored on server. Server is parallelized, so that every request is parsed and handled in a separate executor's task.
The user can use the set, get, or, delete commands.
There are available client arguments:
- -t - type of server operation - get, set, delete, exit
- -k - key for json storing
- -v - values of json
- -in - read json with properties from file
Starting the server:
> java Main
Server started!
Starting the clients:
> java Main -t set -k 1 -v "Hello world!"
Client started!
Sent: {"type":"set","key":"1","value":"Hello world!"}
Received: {"response":"OK"}
> java Main -in setFile.json
Client started!
Sent:
{
"type":"set",
"key":"person",
"value":{
"name":"Elon Musk",
"car":{
"model":"Tesla Roadster",
"year":"2018"
},
"rocket":{
"name":"Falcon 9",
"launches":"87"
}
}
}
Received: {"response":"OK"}
> java Main -in getFile.json
Client started!
Sent: {"type":"get","key":["person","name"]}
Received: {"response":"OK","value":"Elon Musk"}
> java Main -in updateFile.json
Client started!
Sent: {"type":"set","key":["person","rocket","launches"],"value":"88"}
Received: {"response":"OK"}
> java Main -in secondGetFile.json
Client started!
Sent: {"type":"get","key":["person"]}
Received:
{
"response":"OK",
"value":{
"name":"Elon Musk",
"car":{
"model":"Tesla Roadster",
"year":"2018"
},
"rocket":{
"name":"Falcon 9",
"launches":"88"
}
}
}
> java Main -in deleteFile.json
Client started!
Sent: {"type":"delete","key":["person","car","year"]}
Received: {"response":"OK"}
> java Main -in secondGetFile.json
Client started!
Sent: {"type":"get","key":["person"]}
Received:
{
"response":"OK",
"value":{
"name":"Elon Musk",
"car":{
"model":"Tesla Roadster"
},
"rocket":{
"name":"Falcon 9",
"launches":"88"
}
}
}
> java Main -t exit
Client started!
Sent: {"type":"exit"}
Received: {"response":"OK"}
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