/**
    * 
    */
   package edu.samplu.common;
   
   import java.io.File;
   import java.io.InputStream;
   import java.util.Properties;
   import org.apache.commons.io.FileUtils;
  import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;
  import freemarker.cache.ClassTemplateLoader;
  import freemarker.cache.TemplateLoader;
  import freemarker.template.Configuration;
  import sun.applet.Main;
  
  /**
   * @author hardik
   * 
   */
  public class FreemarkerSmoketestGenerator {
      private static Configuration cfg = new Configuration();
  
      // Templates for File Generation
      private static String DIR_TMPL = "/Gen/";
  
      //Configuration
      private static TemplateLoader templateLoader = new ClassTemplateLoader(Main.class, DIR_TMPL);
  
      public static void main(String[] args) throws Exception {
          cfg.setTemplateLoader(templateLoader);
          String DEFAULT_PROPS_LOCATION = "/GenFiles/WorkFlowDocType.properties";
          String STJUNITBASE_TMPL = "STJUnitBase.ftl";
          String STJUNITBKMRKGEN_TMPL = "STJUnitBkMrkGen.ftl";
          String STJUNITNAVGEN_TMPL = "STJUnitNavGen.ftl";
          String STNGBASE_TMPL = "STNGBase.ftl";
          String STNGBKMRKGEN_TMPL = "STNGBkMrkGen.ftl";
          String STNGNAVGEN_TMPL = "STNGNavGen.ftl";
          
          //Here we can prepare a list of template & properties file and can iterate to generate files dynamically on single run.
          createFile(DEFAULT_PROPS_LOCATION,STJUNITBASE_TMPL);
          createFile(DEFAULT_PROPS_LOCATION,STJUNITBKMRKGEN_TMPL);
          createFile(DEFAULT_PROPS_LOCATION,STJUNITNAVGEN_TMPL);
          createFile(DEFAULT_PROPS_LOCATION,STNGBASE_TMPL);
          createFile(DEFAULT_PROPS_LOCATION,STNGBKMRKGEN_TMPL);
          createFile(DEFAULT_PROPS_LOCATION,STNGNAVGEN_TMPL);
      }
  
      private static void createFile(String DEFAULT_PROPS_LOCATION, String TMPL) throws Exception
      {
          try {
              //Loading Properties file
              Properties props = new Properties();
              InputStream in = null;
              in = Main.class.getResourceAsStream(DEFAULT_PROPS_LOCATION);
  
              if (in != null) {
                  props.load(in);
                  in.close();
              }
              else
              {
                  throw new Exception("Problem with input stream.");
              }
  
              // build file STJUnitBase and add to array              
              File f1 = new File("src" + File.separatorChar + "it" + File.separatorChar + "resources"
                      + File.separatorChar + "GenFiles" + File.separatorChar + props.getProperty("className")
                      + TMPL.substring(0, TMPL.length() - 4) + ".java");
  
              String output1 = FreeMarkerTemplateUtils.processTemplateIntoString(cfg.getTemplate(TMPL),
                      props);
              FileUtils.writeStringToFile(f1, output1);
  
          } catch (Exception e) {
              e.printStackTrace();
              throw new Exception("Unable to generate files", e);
          }
  
      }
  
  }