CLIProgress.java

package org.lodder.subtools.multisubdownloader.cli.progress;

abstract class CLIProgress {

  protected int progress;
  protected boolean isEnabled;
  protected boolean isVerbose;
  
  protected CLIProgress(){
    isEnabled = true;
    isVerbose = false;
    progress = 0;
  }
  
  public void disable() {
    this.isEnabled = false;
    /* Print a line */
    System.out.println("");
  }
  
  public void setVerbose(boolean isVerbose) {
    this.isVerbose = isVerbose;
  }
  
  protected abstract void printProgress();
  
  protected void printProgBar(int percent) {
    // http://nakkaya.com/2009/11/08/command-line-progress-bar/
    StringBuilder bar = new StringBuilder("[");

    for (int i = 0; i < 50; i++) {
      if (i < (percent / 2)) {
        bar.append("=");
      } else if (i == (percent / 2)) {
        bar.append(">");
      } else {
        bar.append(" ");
      }
    }

    bar.append("]   ").append(percent).append("%     ");
    System.out.print("\r" + bar.toString());
  }
}