Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package Model; import DataAccessLayer.Base.IDataStorage; import DataAccessLayer.CDataStorageFactory; import java.sql.ResultSet; import java.sql.SQLException; import java.util.HashMap; import org.json.simple.JSONArray; import org.json.simple.JSONObject; import org.json.simple.parser.JSONParser; import org.json.simple.parser.ParseException; /** * * @author Bryden */ public class MDengue { public HashMap<String, String> getDengueZoneInfo() throws SQLException { IDataStorage objDS = CDataStorageFactory.getDataStorage(); HashMap<String, String> objHM = new HashMap<>(); objDS.openConnection(); String strQuery = "SELECT severity, count(severity) FROM `dengue`\n" + "group by severity"; ResultSet objRs = objDS.executeQuery(strQuery); while (objRs.next()) { if (objRs.getString("severity").equalsIgnoreCase("Alert")) { objHM.put("Red", objRs.getString(2)); } else { objHM.put("Yellow", objRs.getString(2)); } } objDS.closeConnection(); return objHM; } public void addCluster(String pStrString) throws ParseException { IDataStorage objDS = CDataStorageFactory.getMasterStorage(); StringBuilder objSB = new StringBuilder(); objSB.append("INSERT INTO `dengue`(`polygon`, `region`, `noOfPeopleInfected`, `severity`)" + "VALUES "); JSONParser jsonParser = new JSONParser(); JSONArray aryJSON = (JSONArray) jsonParser.parse(pStrString); for (Object objJson : aryJSON) { objSB.append("('"); JSONObject objInnerObj = (JSONObject) objJson; objSB.append(objInnerObj.get("XYs").toString()); objSB.append("','"); objSB.append(objInnerObj.get("Location").toString()); objSB.append("','"); objSB.append(objInnerObj.get("Cases").toString()); objSB.append("','"); if (Integer.parseInt(objInnerObj.get("Cases").toString()) < 10) { objSB.append("warning'),"); } else { objSB.append("alert'),"); } } objSB.deleteCharAt(objSB.lastIndexOf(",")); objSB.append(";"); System.out.println(objSB); objDS.openConnection(); objDS.executeScalar("truncate table dengue"); objDS.executeScalar(objSB.toString()); objDS.closeConnection(); } }