com.thanglequoc.aqicalculator.PollutantBreakpointParser Maven / Gradle / Ivy

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AQI Calculator give the detail result from AQI calculation. It also supports NowCast

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package com.thanglequoc.aqicalculator;

import java.util.ArrayList;
import java.util.List;

import com.fasterxml.jackson.databind.JsonNode;

class PollutantBreakpointParser {
    
    PollutantBreakpoint parseNode(JsonNode node) {
        String code = node.path(AQICalculatorConstants.CODE).asText();
        Pollutant pollutant = Pollutant.parseFromString(code);
        String unit = node.path(AQICalculatorConstants.UNIT).asText();
        String period = node.path(AQICalculatorConstants.PERIOD).asText();
        PollutantBreakpoint pollutantBreakpoint = new PollutantBreakpoint(pollutant, unit, period);
        
        List concentrationList = new ArrayList<>();
        
        JsonNode concentrationArray = node.path(AQICalculatorConstants.CONCENTRATIONS);
        for (JsonNode concentrationNode : concentrationArray) {
            double minConcentration = concentrationNode.path(AQICalculatorConstants.MIN).asDouble();
            double maxConcentration = concentrationNode.path(AQICalculatorConstants.MAX).asDouble();
            
            Index index = Index.fromIndexNode(concentrationNode.path(AQICalculatorConstants.INDEX));
            
            PollutantConcentration concentration = new PollutantConcentration(index, minConcentration,
                    maxConcentration);
            concentrationList.add(concentration);
        }
        
        pollutantBreakpoint.setPollutantConcentrations(concentrationList);
        
        return pollutantBreakpoint;
    }
    
}