Package com.scivicslab.pojoactor.core.accumulator

Class JsonAccumulator

java.lang.Object

com.scivicslab.pojoactor.core.accumulator.JsonAccumulator

All Implemented Interfaces:

Accumulator

public class JsonAccumulator
extends Object
implements Accumulator

An accumulator that outputs results in JSON format.

This accumulator organizes results as a JSON object where keys are source identifiers and values are objects containing type-data pairs. This is useful for API responses, log storage, and external system integration.

Example Output

 {
   "node-localhost": {
     "cpu": "AMD Ryzen 7 7700 8-Core Processor",
     "gpu": "NVIDIA GeForce RTX 4080",
     "memory": "62Gi"
   }
 }
 

Since:

2.8.0

Author:

devteam@scivics-lab.com

Constructor Summary

Constructors

Constructor	Description
JsonAccumulator()

Method Summary

Modifier and Type	Method	Description
void	add(String source, String type, String data)	Adds a result to this accumulator.
void	clear()	Clears all accumulated results.
int	getCount()	Returns the number of results that have been added.
org.json.JSONObject	getResultsAsJson()	Returns the results as a JSONObject.
String	getSummary()	Returns a formatted summary of all accumulated results.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

JsonAccumulator

public JsonAccumulator()

Method Details

add

public void add(String source,
 String type,
 String data)

Description copied from interface: Accumulator

Adds a result to this accumulator.

Specified by:

add in interface Accumulator

Parameters:

source - the source identifier (e.g., actor name like "node-localhost")

type - the type of result (e.g., "cpu", "memory", "error")

data - the result data as a string

getSummary

public String getSummary()

Description copied from interface: Accumulator

Returns a formatted summary of all accumulated results.

The format of the summary depends on the implementation. For example, StreamingAccumulator returns a simple count, while BufferedAccumulator returns all results grouped by source.

Specified by:

getSummary in interface Accumulator

Returns:

the formatted summary string

getCount

public int getCount()

Description copied from interface: Accumulator

Returns the number of results that have been added.

Specified by:

getCount in interface Accumulator

Returns:

the count of added results

clear

public void clear()

Description copied from interface: Accumulator

Clears all accumulated results.

After calling this method, the accumulator should be in its initial state, as if no results had been added.

Specified by:

clear in interface Accumulator

getResultsAsJson

public org.json.JSONObject getResultsAsJson()

Returns the results as a JSONObject.

Note: This returns a copy to prevent external modification.

Returns:

a copy of the results JSONObject