Days.Day12.java Source code

Introduction

Here is the source code for Days.Day12.java

Source

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package Days;

import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.JsonPrimitive;
import java.io.File;
import java.io.FileReader;
import java.util.Map.Entry;
import java.util.Scanner;

/**
 *
 * @author jarno
 */
public class Day12 extends AllDays.Day {

    public Day12() {
    }

    @Override
    public void run() throws Exception {
        // get input file
        File f = getInput();

        Scanner sc = new Scanner(f);
        sc.useDelimiter("[^0-9-]{1,}");

        int totaal = 0;
        while (sc.hasNext()) {
            int next = sc.nextInt();
            totaal += next;
        }
        System.out.println(totaal);
        sc.close();

        FileReader fr = new FileReader(f);
        JsonParser parser = new JsonParser();
        JsonElement root = parser.parse(fr);
        totaal = parseElement(root);
        System.out.println(totaal);

    }

    public int parseElement(JsonElement element) {
        int totaal = 0;
        if (element.isJsonArray()) {
            totaal += parseArray(element.getAsJsonArray());
        } else if (element.isJsonObject()) {
            totaal += parseObject(element.getAsJsonObject());
        } else if (element.isJsonPrimitive()) {
            totaal += parsePrimitive(element.getAsJsonPrimitive());
        }
        return totaal;
    }

    public int parseArray(JsonArray array) {
        int totaal = 0;
        for (JsonElement e : array) {
            totaal += parseElement(e);
        }
        return totaal;
    }

    public int parseObject(JsonObject object) {
        boolean hasRed = false;
        int totaal = 0;
        for (Entry<String, JsonElement> entry : object.entrySet()) {
            if (entry.getKey().equalsIgnoreCase("red")) {
                hasRed = true;
                break;
            } else {
                try {
                    totaal += Integer.parseInt(entry.getKey());
                } catch (NumberFormatException e) {

                }
            }
            if (entry.getValue().isJsonPrimitive()) {
                JsonPrimitive value = entry.getValue().getAsJsonPrimitive();
                if (value.isString() && value.getAsString().equalsIgnoreCase("red")) {
                    hasRed = true;
                    break;
                }
            }
        }
        if (!hasRed) {
            for (Entry<String, JsonElement> entry : object.entrySet()) {
                totaal += parseElement(entry.getValue());
            }
        }
        return totaal;
    }

    public int parsePrimitive(JsonPrimitive primitive) {
        if (primitive.isNumber()) {
            return primitive.getAsInt();
        }
        return 0;
    }
}