| /* |
| * 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.android.volley.toolbox; |
| |
| import com.android.volley.AuthFailureError; |
| import com.android.volley.Request; |
| import com.android.volley.Request.Method; |
| |
| import org.apache.http.HttpEntity; |
| import org.apache.http.HttpResponse; |
| import org.apache.http.NameValuePair; |
| import org.apache.http.client.HttpClient; |
| import org.apache.http.client.methods.HttpDelete; |
| import org.apache.http.client.methods.HttpEntityEnclosingRequestBase; |
| import org.apache.http.client.methods.HttpGet; |
| import org.apache.http.client.methods.HttpPost; |
| import org.apache.http.client.methods.HttpPut; |
| import org.apache.http.client.methods.HttpUriRequest; |
| import org.apache.http.entity.ByteArrayEntity; |
| import org.apache.http.message.BasicNameValuePair; |
| import org.apache.http.params.HttpConnectionParams; |
| import org.apache.http.params.HttpParams; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * An HttpStack that performs request over an {@link HttpClient}. |
| */ |
| public class HttpClientStack implements HttpStack { |
| protected final HttpClient mClient; |
| |
| private final static String HEADER_CONTENT_TYPE = "Content-Type"; |
| |
| public HttpClientStack(HttpClient client) { |
| mClient = client; |
| } |
| |
| private static void addHeaders(HttpUriRequest httpRequest, Map<String, String> headers) { |
| for (String key : headers.keySet()) { |
| httpRequest.setHeader(key, headers.get(key)); |
| } |
| } |
| |
| @SuppressWarnings("unused") |
| private static List<NameValuePair> getPostParameterPairs(Map<String, String> postParams) { |
| List<NameValuePair> result = new ArrayList<NameValuePair>(postParams.size()); |
| for (String key : postParams.keySet()) { |
| result.add(new BasicNameValuePair(key, postParams.get(key))); |
| } |
| return result; |
| } |
| |
| @Override |
| public HttpResponse performRequest(Request<?> request, Map<String, String> additionalHeaders) |
| throws IOException, AuthFailureError { |
| HttpUriRequest httpRequest = createHttpRequest(request, additionalHeaders); |
| addHeaders(httpRequest, additionalHeaders); |
| addHeaders(httpRequest, request.getHeaders()); |
| onPrepareRequest(httpRequest); |
| HttpParams httpParams = httpRequest.getParams(); |
| int timeoutMs = request.getTimeoutMs(); |
| // TODO: Reevaluate this connection timeout based on more wide-scale |
| // data collection and possibly different for wifi vs. 3G. |
| HttpConnectionParams.setConnectionTimeout(httpParams, 5000); |
| HttpConnectionParams.setSoTimeout(httpParams, timeoutMs); |
| return mClient.execute(httpRequest); |
| } |
| |
| /** |
| * Creates the appropriate subclass of HttpUriRequest for passed in request. |
| */ |
| @SuppressWarnings("deprecation") |
| /* protected */ static HttpUriRequest createHttpRequest(Request<?> request, |
| Map<String, String> additionalHeaders) throws AuthFailureError { |
| switch (request.getMethod()) { |
| case Method.DEPRECATED_GET_OR_POST: { |
| // This is the deprecated way that needs to be handled for backwards compatibility. |
| // If the request's post body is null, then the assumption is that the request is |
| // GET. Otherwise, it is assumed that the request is a POST. |
| byte[] postBody = request.getPostBody(); |
| if (postBody != null) { |
| HttpPost postRequest = new HttpPost(request.getUrl()); |
| postRequest.addHeader(HEADER_CONTENT_TYPE, request.getPostBodyContentType()); |
| HttpEntity entity; |
| entity = new ByteArrayEntity(postBody); |
| postRequest.setEntity(entity); |
| return postRequest; |
| } else { |
| return new HttpGet(request.getUrl()); |
| } |
| } |
| case Method.GET: |
| return new HttpGet(request.getUrl()); |
| case Method.DELETE: |
| return new HttpDelete(request.getUrl()); |
| case Method.POST: { |
| HttpPost postRequest = new HttpPost(request.getUrl()); |
| postRequest.addHeader(HEADER_CONTENT_TYPE, request.getBodyContentType()); |
| setEntityIfNonEmptyBody(postRequest, request); |
| return postRequest; |
| } |
| case Method.PUT: { |
| HttpPut putRequest = new HttpPut(request.getUrl()); |
| putRequest.addHeader(HEADER_CONTENT_TYPE, request.getBodyContentType()); |
| setEntityIfNonEmptyBody(putRequest, request); |
| return putRequest; |
| } |
| default: |
| throw new IllegalStateException("Unknown request method."); |
| } |
| } |
| |
| private static void setEntityIfNonEmptyBody(HttpEntityEnclosingRequestBase httpRequest, |
| Request<?> request) throws AuthFailureError { |
| byte[] body = request.getBody(); |
| if (body != null) { |
| HttpEntity entity = new ByteArrayEntity(body); |
| httpRequest.setEntity(entity); |
| } |
| } |
| |
| /** |
| * Called before the request is executed using the underlying HttpClient. |
| * |
| * <p>Overwrite in subclasses to augment the request.</p> |
| */ |
| protected void onPrepareRequest(HttpUriRequest request) throws IOException { |
| // Nothing. |
| } |
| } |