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