ivannosys3/src/API/Utils.java

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package API;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author Eugenio
 */
public class Utils {

    public static boolean isset(String[] data, int index) {
        try {
            String a;
            a = data[index];
            return true;
        } catch (ArrayIndexOutOfBoundsException e) {
            return false;
        }
    }

    public static boolean isNumber(String string) {
        try {
            Integer.parseInt(string);
        } catch (Exception e) {
            return false;
        }
        return true;
    }

    public static String clearName(String nome) {
        return nome.split("\\[")[0].replace("*", "").replace("&", "");
    }

    public static ArrayList<String> arraypad(ArrayList<String> data, String string, int tam) {
        if (data.size() == tam) {
            return data;
        }
        for (int i = data.size(); i <= tam; i++) {
            data.add(string);
        }
        return data;
    }

    public static Object Pad(String str, String replace, String direction, int size) {
        if (size == 0) {
            return str;
        }
        return String.format("%" + direction + size + "s", str).replace(" ", replace);
    }

    public static String pad(int size, String str) {
        if (size == 0) {
            return str;
        }
        return String.format("%" + size + "s", str).replace(' ', '0');
    }

    public static String padPreserveSignal(int size, String str) {
        if (size == 0) {
            return str;
        }
        return String.format("%" + size + "s", str).replace(' ', str.charAt(0));
    }

    public static String int2hex(int num) {
        return Integer.toHexString(num);
//        return Integer.valueOf(String.valueOf(n), 16);
    }

    public static String cut(int SizeBits, String paded) {
        int strSize = paded.length();
        return paded.substring(strSize - SizeBits, strSize);
    }

    public static String rTrim(String s) {
        return s.replaceAll("\\s+$", "");
    }

    public static String lTrim(String s) {
        return s.replaceAll("^\\s+", "");
    }

    /**
     *
     * @param s
     * @param remove ex: "|\"" para remover terminado com {"}
     * @return
     */
    public static String rTrim(String s, String remover) {
        return s.replaceAll("(\\s+" + remover + ")$", "");
    }

    /**
     *
     * @param s
     * @param remove ex: "|\"" para remover iniciado com {"}
     * @return
     */
    public static String lTrim(String s, String remover) {
        return s.replaceAll("^(\\s+" + remover + ")", "");
    }

    /**
     *
     * @param s
     * @param remove ex: "|\"" para remover iniciado e encerrado com {"}
     * @return
     */
    public static String trim(String s, String remover) {
        return Utils.rTrim(Utils.lTrim(s, remover), remover);
    }

    public static String charToInt(String atribuicao) {
        char chr = atribuicao.charAt(0);
        return "" + (int) chr;
    }

    public static String charToInt(char c) {
        return "" + (int) c;
    }

    public static int parseInt(String v) {
        return Integer.parseInt(v);
    }

    public static String Join(List<String> v, String delimiter) {
        String[] a = new String[v.size()];
        return Join(v.toArray(a), delimiter);
    }

    public static String Join(String[] v, String delimiter) {
        String result = "";
        int i = 0;
        for (; i < v.length - 1; i++) {
            result += v[i] + delimiter;
        }
        result += v[i];
        return result;
    }

    public static <T> T[] Concat(T[] first, T[] second) {
        T[] result = Arrays.copyOf(first, first.length + second.length);
        System.arraycopy(second, 0, result, first.length, second.length);
        return result;
    }

    public static String Repeat(String s, String times) {
        return Repeat(s, Integer.parseInt(times));
    }

    public static String Repeat(String s, int times) {
        StringBuilder builder = new StringBuilder();
        for (int i = 0; i < times; i++) {
            builder.append(s);
        }
        return builder.toString();
    }

    public static boolean Empty(String s) {

//        return (s == null || s.replaceAll("\\s+", "").equals(""));
//        System.out.println("s.trim().equals::" + s.trim().equals("") + ":'" + s + "'");
//        return (s == null || s.trim().equals(""));
        return (s == null || s.equals(""));
    }

    public static void WriteFile(String filename, String content) {

        PrintStream out = null;
        try {
            File file = new File(filename);

            if (!file.isAbsolute()) {
                filename = Paths.get(".").toAbsolutePath().normalize().toString() + File.separator + filename;
                file = new File(filename);
            }

            File dir = file.getParentFile();

            if (!dir.exists()) {
                Files.createDirectories(Paths.get(dir.getPath()));
            }

            out = new PrintStream(new FileOutputStream(filename));
            out.print(content);

        } catch (FileNotFoundException ex) {
            Logger.getLogger(Utils.class.getName()).log(Level.SEVERE, null, ex);

        } catch (IOException ex) {
            Logger.getLogger(Utils.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            if (out != null) {
                out.close();
            }
        }
    }

    public static Integer ResolveExpr(String op, String p1, String p2) throws Exception {
        return ResolveExpr(op, Integer.parseInt(p1), Integer.parseInt(p2));
    }

    public static Integer ResolveExpr(String op, Integer p1, Integer p2) {
        switch (op.substring(0, 1)) {
            case "+":
                return p1 + p2;
            case "-":
                return p1 - p2;
            case "*":
                return p1 * p2;
            case "/":
                return p1 / p2;
            case "%":
                return p1 % p2;
            case "<<":
                return p1 << p2;
            case ">>":
                return p1 >> p2;
            case "&":
                return p1 & p2;
            case "|":
                return p1 | p2;
        }
        return null;
    }

    public static String ComplementOperation(String op) {
        return Complements.get(op);
    }
    protected static HashMap<String, String> Complements = new HashMap<String, String>() {
        {
            put("!=", "==");
            put("==", "!=");
            put("<", ">=");
            put("<=", ">");
            put(">", "<=");
            put(">=", "<");
        }
    };

}