/*
 * $Id:$
 *
 * This file is part of the Cloud Services Integration Platform (CSIP),
 * a Model-as-a-Service framework, API and application suite.
 *
 * 2012-2022, Olaf David and others, OMSLab, Colorado State University.
 *
 * OMSLab licenses this file to you under the MIT license.
 * See the LICENSE file in the project root for more information.
 */
package csip;

import org.codehaus.jettison.json.JSONObject;

/**
 * Publisher
 *
 * @author od
 */
interface Publisher extends AutoCloseable {

  /**
   * Publish a message.
   *
   * @param key the message key
   * @param value the message value
   */
  void publish(String key, String value);


  void publish(JSONObject payload);


  @Override
  default void close() throws Exception {
  }

  /**
   * Default Publisher, doing nothing.
   */
  Publisher NONE = new Publisher() {
    @Override
    public void publish(String key, String value) {
    }


    @Override
    public void publish(JSONObject payload) {
    }
  };

}