Jean-Baptiste Queru | d56b88a | 2012-11-07 07:48:57 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.volley.toolbox; |
| 18 | |
| 19 | import com.android.volley.NetworkResponse; |
| 20 | import com.android.volley.ParseError; |
| 21 | import com.android.volley.Response; |
| 22 | import com.android.volley.Response.ErrorListener; |
| 23 | import com.android.volley.Response.Listener; |
| 24 | |
| 25 | import org.json.JSONException; |
| 26 | import org.json.JSONObject; |
| 27 | |
| 28 | import java.io.UnsupportedEncodingException; |
| 29 | |
| 30 | /** |
| 31 | * A request for retrieving a {@link JSONObject} response body at a given URL, allowing for an |
| 32 | * optional {@link JSONObject} to be passed in as part of the request body. |
| 33 | */ |
| 34 | public class JsonObjectRequest extends JsonRequest<JSONObject> { |
| 35 | |
| 36 | /** |
| 37 | * Creates a new request. |
Jean-Baptiste Queru | e48f443 | 2012-11-07 07:54:36 -0800 | [diff] [blame] | 38 | * @param method the HTTP method to use |
Jean-Baptiste Queru | d56b88a | 2012-11-07 07:48:57 -0800 | [diff] [blame] | 39 | * @param url URL to fetch the JSON from |
| 40 | * @param jsonRequest A {@link JSONObject} to post with the request. Null is allowed and |
| 41 | * indicates no parameters will be posted along with request. |
| 42 | * @param listener Listener to receive the JSON response |
| 43 | * @param errorListener Error listener, or null to ignore errors. |
| 44 | */ |
Jean-Baptiste Queru | e48f443 | 2012-11-07 07:54:36 -0800 | [diff] [blame] | 45 | public JsonObjectRequest(int method, String url, JSONObject jsonRequest, |
| 46 | Listener<JSONObject> listener, ErrorListener errorListener) { |
| 47 | super(method, url, (jsonRequest == null) ? null : jsonRequest.toString(), listener, |
| 48 | errorListener); |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Constructor which defaults to <code>GET</code> if <code>jsonRequest</code> is |
| 53 | * <code>null</code>, <code>POST</code> otherwise. |
| 54 | * |
| 55 | * @see #JsonObjectRequest(int, String, JSONObject, Listener, ErrorListener) |
| 56 | */ |
Jean-Baptiste Queru | d56b88a | 2012-11-07 07:48:57 -0800 | [diff] [blame] | 57 | public JsonObjectRequest(String url, JSONObject jsonRequest, Listener<JSONObject> listener, |
| 58 | ErrorListener errorListener) { |
Jean-Baptiste Queru | e48f443 | 2012-11-07 07:54:36 -0800 | [diff] [blame] | 59 | this(jsonRequest == null ? Method.GET : Method.POST, url, jsonRequest, |
| 60 | listener, errorListener); |
Jean-Baptiste Queru | d56b88a | 2012-11-07 07:48:57 -0800 | [diff] [blame] | 61 | } |
| 62 | |
| 63 | @Override |
| 64 | protected Response<JSONObject> parseNetworkResponse(NetworkResponse response) { |
| 65 | try { |
| 66 | String jsonString = |
| 67 | new String(response.data, HttpHeaderParser.parseCharset(response.headers)); |
| 68 | return Response.success(new JSONObject(jsonString), |
| 69 | HttpHeaderParser.parseCacheHeaders(response)); |
| 70 | } catch (UnsupportedEncodingException e) { |
| 71 | return Response.error(new ParseError(e)); |
| 72 | } catch (JSONException je) { |
| 73 | return Response.error(new ParseError(je)); |
| 74 | } |
| 75 | } |
| 76 | } |