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.AuthFailureError; 20 import com.android.volley.Request; 21 22 import org.apache.http.HttpResponse; 23 24 import java.io.IOException; 25 import java.util.Map; 26 27 /** 28 * An HTTP stack abstraction. 29 */ 30 public interface HttpStack { 31 /** 32 * Performs an HTTP request with the given parameters. 33 * 34 * <p>A GET request is sent if request.getPostBody() == null. A POST request is sent otherwise, 35 * and the Content-Type header is set to request.getPostBodyContentType().</p> 36 * 37 * @param request the request to perform 38 * @param additionalHeaders additional headers to be sent together with 39 * {@link Request#getHeaders()} 40 * @return the HTTP response 41 */ 42 public HttpResponse performRequest(Request<?> request, Map<String, String> additionalHeaders) 43 throws IOException, AuthFailureError; 44 45 } 46
