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package com.arch.util;

import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

public final class LineCommandUtils {

    private LineCommandUtils() {

    }

    public static int executaCommando(final String command) throws InterruptedException, IOException {
        return executaCommando(command, null);
    }

    public static int executaCommando(final String command, StringBuilder log) throws InterruptedException, IOException {
        final ArrayList commands = new ArrayList<>();

        if (OperationSystemUtils.windows()) {
            commands.add("cmd");
            commands.add("/C");
        } else {
            commands.add("/bin/bash");
            commands.add("-c");
        }

        commands.add(command);
        BufferedReader br = null;
        final ProcessBuilder p = new ProcessBuilder(commands);
        final Process process = p.start();

        try (final InputStream is = process.getInputStream();
             final InputStreamReader isr = new InputStreamReader(is)) {
            br = new BufferedReader(isr);
            String line;
            String ultimaLinha = "1";
            while ((line = br.readLine()) != null) {
                LogUtils.generate(line);

                if (log != null) {
                    if (!"".equals(log.toString())) {
                        log.append("\n");
                    }

                    log.append(line);
                }

                ultimaLinha = line;
            }

            LogUtils.warning(ultimaLinha);

            process.waitFor();

            return process.exitValue();
        } finally {
            secureClose(br);
        }
    }

    private static void secureClose(final Closeable resource) {
        try {
            if (resource != null) {
                resource.close();
            }
        } catch (IOException ex) {
            LogUtils.generate(ex);
        }
    }

}