OpenJump, BeanShell, MakeNewLayerFromDAT

/*
    OpenJump, BeanShell, MakeNewLayerFromDAT
*/
public class Point {
    public double y = 0;
    public double x = 0;
    public double m = 0;
    public void Point(double y, double x/*, double m*/) throws IOException {
        this.y=y;
        this.x=x;
        /*m.isNull() ? this.m=0 : this.m=m;*/
    }
}

public class DAT {
  public String filename = "";
  public String header = "";
  public HashMap tables = new HashMap();
  public ArrayList wholeFile = new ArrayList();
  public HashMap points = new HashMap();

  public void DAT(String filename) throws IOException {
      this.filename = filename;
  }

  public void openToHashMap() throws IOException {
      try {
        // https://techknowstudy.wordpress.com/2015/03/10/reading-a-file-through-bean-shell/
        fileReader=new FileReader(filename);
        bufferReader= new BufferedReader(fileReader);
        linenumber=0;
        while( (line=bufferReader.readLine()) != null ) {
            //if(line.equals("")) { continue; }
            line  = line.trim().replaceAll("\\*$","");
            if ( ++linenumber == 1 ) {
               header = line;
               continue;
            }
            if(line.startsWith("T_")) {
                table = line;
                tables.put(table,new ArrayList());
                continue;
            } else {/*
                String[] words = line.split("\\*");
                for(i=0;i<words.length;i++){
                    print(words[i]+"\t");
                }*/
                tables{table}.add(line);
            }
        };
        fileReader.close();
        bufferReader.close();
        for ( key : this.tables.keySet() ){ this.tables{key}.trimToSize(); }
    } catch (IOException e) {
        e.printStackTrace();
    }

  }

  public void openToArrayList() throws IOException {
    try {
        fileReader=new FileReader(filename);
        bufferReader= new BufferedReader(fileReader);
        linenumber=0;
        while( (line=bufferReader.readLine()) != null ) {
            line  = line.trim().replaceAll("\\*$","");
            if ( ++linenumber == 1 ) {
               header = line;
               continue;
            }
            wholeFile.add(line);
        };
        fileReader.close();
        bufferReader.close();
        wholeFile.trimToSize();
    } catch (IOException e) {
        e.printStackTrace();
    }
  }

  public void setPoints() {
    for ( row : this.tables{"T_PONT"} ){
        cols = row.split("\\*",-1);
        points.put(cols[0],new Point(Double.parseDouble(cols[1]),Double.parseDouble(cols[2])/*,Double.parseDouble(cols[3])*/));
    }
  }

} // end of DAT class.
/*
{

    dat = new DAT("q:\\OpenJUMP\\beanshell\\dat_ck_proba.dat");
    print ("Fájlnév: "+dat.filename );
    elotte=Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
    dat.openToHashMap();
    //dat.openToArrayList();
    utanna=Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
    print (elotte/1024/1024+" "+utanna/1024/1024+" : "+(utanna-elotte)/1024/1024+" [Mb]");

    print ( dat.header );
    for ( t : dat.tables.keySet() ) {
        print(t+": "+dat.tables{t}.size());
    }

    dat.setPoints();
    for ( key : dat.points.keySet() ) {
        print(key+": "+dat.points{key}.y+" "+dat.points{key}.x);
    }

}*/

{

dat = new DAT("q:\\OpenJUMP\\beanshell\\dat_tug.dat");
dat.openToHashMap();
dat.setPoints();

  Random rand = new Random();

  randomString(int length) {
      StringBuffer sb = new StringBuffer();
      for (int i = 0 ; i < length ; i++) sb.append((char)(64 + 27.0*Math.random()));
      return sb.toString();
  }


  schema = new FeatureSchema();
  schema.addAttribute("id",AttributeType.BIGINT);
  schema.addAttribute("name",AttributeType.STRING);
  schema.addAttribute("geometry",AttributeType.GEOMETRY);
  print("Attributes of schema:");
  for ( name : schema.attributeNames ) {
    print("  - "+name+" ["+schema.getAttributeType(name)+"]");
  }

  dataset = new FeatureDataset(schema);
   for ( key : dat.points.keySet() ) {
    coord = new Coordinate(dat.points{key}.x,dat.points{key}.y
);
    geom = new GeometryFactory().createPoint(coord);
    geom.setSRID(23700);
    bf = new BasicFeature(schema);
    bf.setGeometry(geom);
    //bf.setUserData("id", rand.nextInt(100)); // don't work...
    //bf.setUserData("name", randomString(5)); // don't work...
    bf.setAttribute("id", key);
    dataset.add(bf);
  }
  print("Dataset size: "+dataset.size());
  for ( f : dataset.getFeatures() ) {
    print("  - "+f.getGeometry()+"\tid="+f.getAttribute(0)+"\tname="+f.getAttribute(1));
  }
  wc.layerManager.addLayer("DEMO","one point",dataset);
  print("˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙");


  FeatureCollection points = FeatureDatasetFactory.createFromGeometry(geoms,schema);
  print("dataset size: "+points.size()+" [...]");
  wc.layerManager.addLayer("DEMO","more points",points);
  print("˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙");

}