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rajender |
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.volley.toolbox;
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import com.android.volley.NetworkResponse;
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import com.android.volley.ParseError;
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import com.android.volley.Response;
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import com.android.volley.Response.ErrorListener;
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import com.android.volley.Response.Listener;
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import org.json.JSONArray;
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import org.json.JSONException;
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import java.io.UnsupportedEncodingException;
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/**
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* A request for retrieving a {@link JSONArray} response body at a given URL.
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*/
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public class JsonArrayRequest extends JsonRequest<JSONArray> {
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/**
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* Creates a new request.
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* @param url URL to fetch the JSON from
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* @param listener Listener to receive the JSON response
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* @param errorListener Error listener, or null to ignore errors.
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*/
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public JsonArrayRequest(String url, Listener<JSONArray> listener, ErrorListener errorListener) {
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super(Method.GET, url, null, listener, errorListener);
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}
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/**
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* Creates a new request.
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* @param method the HTTP method to use
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* @param url URL to fetch the JSON from
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* @param jsonRequest A {@link JSONArray} to post with the request. Null is allowed and
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* indicates no parameters will be posted along with request.
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* @param listener Listener to receive the JSON response
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* @param errorListener Error listener, or null to ignore errors.
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*/
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public JsonArrayRequest(int method, String url, JSONArray jsonRequest,
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Listener<JSONArray> listener, ErrorListener errorListener) {
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super(method, url, (jsonRequest == null) ? null : jsonRequest.toString(), listener,
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errorListener);
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}
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@Override
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protected Response<JSONArray> parseNetworkResponse(NetworkResponse response) {
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try {
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String jsonString = new String(response.data,
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HttpHeaderParser.parseCharset(response.headers, PROTOCOL_CHARSET));
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return Response.success(new JSONArray(jsonString),
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HttpHeaderParser.parseCacheHeaders(response));
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} catch (UnsupportedEncodingException e) {
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return Response.error(new ParseError(e));
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} catch (JSONException je) {
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return Response.error(new ParseError(je));
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}
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}
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}
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