package wrapper;

import java.util.*;
//import convert.*;


final class ParamValueTable extends HashMap implements ParamValueTableReader {   

  private int paramtype; 
  
  ParamValueTable(String paramType){
    super();
    if (paramType.equals("String")) paramtype=1;
    else if (paramType.equals("Gentype")) paramtype=2;
    else throw new RuntimeException("Cannot create a parameter value table for parameters of type "+paramType);
  } 
     
  void add(String name, Object value) {
    if (paramtype == 1 & !value.getClass().getName().equals("java.lang.String")) 
      throw new ParameterTypeException("Value has to be of type java.lang.String, yet you gave a value of type " 
            + value.getClass().getName());
    else if (paramtype == 2 &!testIfGentype(value)) 
      throw new ParameterTypeException("Value has to be of type convert.Gentype, yet you gave a value of type " 
            + value.getClass().getName());
    //ADD: check validity of parameter name with repository!
    else if (containsKey(name)) 
          throw new ParameterNameException("Parameter already exists.");
    else put(name, value);
  }
  
  void set(String name, Object value) {
    if (paramtype == 1 & !value.getClass().getName().equals("java.lang.String")) 
      throw new ParameterTypeException("Value has to be of type java.lang.String, yet you gave a value of type " 
            + value.getClass().getName());
    else if (paramtype == 2 & ! testIfGentype(value))
      throw new ParameterTypeException("Value has to be of type convert.Gentype, yet you gave a value of type " 
            + value.getClass().getName());
    else if (!containsKey(name)) 
          throw new ParameterNameException("Unknown parameter name.");
    else put(name, value);
  }
  
  public Object get(String name){
    if (!containsKey(name))
           throw new ParameterNameException("Unknown parameter name.");
    return super.get(name);
  }
  
  boolean containsName(String name) {return containsKey(name);}



  private boolean testIfGentype(Object value) {
    //not yest implemented

    return false;
  }

}