code: /*
   * Copyright 2016 Google Inc. All rights reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.physical_web.collection;
  
  /**
   * Callback to implement for requests made to fetch icons.
   */
  public abstract class PwsResultIconCallback {
    /**
     * Handle a valid PwsResult.
     * @param icon The icon returned from the HTTP request.
     */
    public abstract void onIcon(byte[] icon);
  
    /**
     * Handle an error that occurred while attempting to use the Physical Web
     * Service.
     * @param httpResponseCode The HTTP response code returned by the Physical
     *        Web Service.  This will be 0 if a response was never received.
     * @param e The encountered exception.
     */
    public void onError(int httpResponseCode, Exception e) {}
  }
  