content: /*
   * Copyright (C) 2011 The Android Open Source Project
   *
   * 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 com.cjj.volley.toolbox;
  
  import com.cjj.volley.NetworkResponse;
  import com.cjj.volley.Request;
  import com.cjj.volley.Response;
  import com.cjj.volley.Response.ErrorListener;
  import com.cjj.volley.Response.Listener;
  
  import java.io.UnsupportedEncodingException;
  
  /**
   * A canned request for retrieving the response body at a given URL as a String.
   */
  public class StringRequest extends Request<String> {
      private final Listener<String> mListener;
  
      /**
       * Creates a new request with the given method.
       *
       * @param method the request {@link Method} to use
       * @param url URL to fetch the string at
       * @param listener Listener to receive the String response
       * @param errorListener Error listener, or null to ignore errors
       */
      public StringRequest(int method, String url, Listener<String> listener,
              ErrorListener errorListener) {
          super(method, url, errorListener);
          mListener = listener;
      }
  
      /**
       * Creates a new GET request.
       *
       * @param url URL to fetch the string at
       * @param listener Listener to receive the String response
       * @param errorListener Error listener, or null to ignore errors
       */
      public StringRequest(String url, Listener<String> listener, ErrorListener errorListener) {
          this(Method.GET, url, listener, errorListener);
      }
  
      @Override
      protected void deliverResponse(String response) {
          mListener.onResponse(response);
      }
  
      @Override
      protected Response<String> parseNetworkResponse(NetworkResponse response) {
          String parsed;
          try {
              parsed = new String(response.data, HttpHeaderParser.parseCharset(response.headers));
          } catch (UnsupportedEncodingException e) {
              parsed = new String(response.data);
          }
          return Response.success(parsed, HttpHeaderParser.parseCacheHeaders(response));
      }
  }
  