package com.jeffhanson.rest.core;

import com.jeffhanson.rest.server.http.HTTPConnector;

public class Connectors
{
  private static java.util.HashMap<String, Connector> instances =
    new java.util.HashMap<String, Connector>();
  
  public static Connector getConnector(Protocol protocol)
    throws ConnectorException
  {
    String key = protocol.getScheme();
    Connector instance = instances.get(key);
    
    if (instance == null)
    {
      if (key.equalsIgnoreCase(Protocol.HTTP.getScheme()))
      {
        instance = new HTTPConnector();
        instances.put(key, instance);
      }
      else
      {
        throw new ConnectorException("Invalid protocol: " + protocol.getScheme());
      }
    }
    
    return instance;
  }
}