How to capture extension tool response as a file or Variable to use in further test steps.

package com.java;

import com.parasoft.api.Application;
import com.parasoft.api.ScriptingContext;

import java.io.IOException;
import java.util.ArrayList;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;

//import org.openqa.selenium.firefox.FirefoxDriver;

public class Test {
    public Object login(Object input, ScriptingContext context) throws InterruptedException, IOException {
        String fullString = "";
        JSONObject finalObj = new JSONObject();
        JSONObject obj = new JSONObject();
        // Object[] jObj = new Object[10];
        JSONArray jsonList = new JSONArray();
        ArrayList<String> list = (ArrayList<String>) context.getValues("DS", "acc_data");
        Application.showMessage("size:" + list.size());
        for (int i = 0; i < list.size(); i++) {
            String fullStringa = list.get(i);
            // a = "<test>" + a + "</test>";
            // fullString += a;
            Application.showMessage("hi" + fullString);
            String array1[] = fullStringa.split(",");
            for (String temp : array1) {
                if (temp.contains("id")) {
                    obj = new JSONObject();

                    obj.put("id", temp.substring(6, temp.length() - 1));
                    obj.put("access", Boolean.TRUE);
                    Application.showMessage(temp);
                }
                if (obj != null && !obj.isEmpty())
                    jsonList.add(obj);

            }
            finalObj.put("accessAllFutureAccounts","true");
            finalObj.put("accounts", jsonList);
            //jsonList.add(0, "accounts");
            //jsonList.add(1, jsonList);
            //context.setValue("final", finalObj.toJSONString());

            Application.showMessage("jlist" + finalObj);
        }
        return finalObj;

    }
}

Please help me on this.

Thanks,
Swapna