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An OkHttp backed HttpStack for Volley (okhttp3 version)
/**
* The MIT License (MIT)
*
* Copyright (c) 2015 Circle Internet Financial
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.circle.android.api;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.toolbox.HttpStack;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.ProtocolVersion;
import org.apache.http.StatusLine;
import org.apache.http.entity.BasicHttpEntity;
import org.apache.http.message.BasicHeader;
import org.apache.http.message.BasicHttpResponse;
import org.apache.http.message.BasicStatusLine;
import java.io.IOException;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import okhttp3.Call;
import okhttp3.Headers;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Protocol;
import okhttp3.RequestBody;
import okhttp3.Response;
import okhttp3.ResponseBody;
/**
* OkHttp backed {@link com.android.volley.toolbox.HttpStack HttpStack} that does not
* use okhttp-urlconnection
*/
public class OkHttp3Stack implements HttpStack {
public OkHttp3Stack() {
}
@Override
public HttpResponse performRequest(com.android.volley.Request<?> request, Map<String, String> additionalHeaders)
throws IOException, AuthFailureError {
OkHttpClient.Builder clientBuilder = new OkHttpClient.Builder();
int timeoutMs = request.getTimeoutMs();
clientBuilder.connectTimeout(timeoutMs, TimeUnit.MILLISECONDS);
clientBuilder.readTimeout(timeoutMs, TimeUnit.MILLISECONDS);
clientBuilder.writeTimeout(timeoutMs, TimeUnit.MILLISECONDS);
okhttp3.Request.Builder okHttpRequestBuilder = new okhttp3.Request.Builder();
okHttpRequestBuilder.url(request.getUrl());
Map<String, String> headers = request.getHeaders();
for(final String name : headers.keySet()) {
okHttpRequestBuilder.addHeader(name, headers.get(name));
}
for(final String name : additionalHeaders.keySet()) {
okHttpRequestBuilder.addHeader(name, additionalHeaders.get(name));
}
setConnectionParametersForRequest(okHttpRequestBuilder, request);
OkHttpClient client = clientBuilder.build();
okhttp3.Request okHttpRequest = okHttpRequestBuilder.build();
Call okHttpCall = client.newCall(okHttpRequest);
Response okHttpResponse = okHttpCall.execute();
StatusLine responseStatus = new BasicStatusLine(parseProtocol(okHttpResponse.protocol()), okHttpResponse.code(), okHttpResponse.message());
BasicHttpResponse response = new BasicHttpResponse(responseStatus);
response.setEntity(entityFromOkHttpResponse(okHttpResponse));
Headers responseHeaders = okHttpResponse.headers();
for(int i = 0, len = responseHeaders.size(); i < len; i++) {
final String name = responseHeaders.name(i), value = responseHeaders.value(i);
if (name != null) {
response.addHeader(new BasicHeader(name, value));
}
}
return response;
}
private static HttpEntity entityFromOkHttpResponse(Response r) throws IOException {
BasicHttpEntity entity = new BasicHttpEntity();
ResponseBody body = r.body();
entity.setContent(body.byteStream());
entity.setContentLength(body.contentLength());
entity.setContentEncoding(r.header("Content-Encoding"));
if (body.contentType() != null) {
entity.setContentType(body.contentType().type());
}
return entity;
}
@SuppressWarnings("deprecation")
private static void setConnectionParametersForRequest(okhttp3.Request.Builder builder, com.android.volley.Request<?> request)
throws IOException, AuthFailureError {
switch (request.getMethod()) {
case Request.Method.DEPRECATED_GET_OR_POST:
// Ensure backwards compatibility. Volley assumes a request with a null body is a GET.
byte[] postBody = request.getPostBody();
if (postBody != null) {
builder.post(RequestBody.create(MediaType.parse(request.getPostBodyContentType()), postBody));
}
break;
case Request.Method.GET:
builder.get();
break;
case Request.Method.DELETE:
builder.delete();
break;
case Request.Method.POST:
builder.post(createRequestBody(request));
break;
case Request.Method.PUT:
builder.put(createRequestBody(request));
break;
case Request.Method.HEAD:
builder.head();
break;
case Request.Method.OPTIONS:
builder.method("OPTIONS", null);
break;
case Request.Method.TRACE:
builder.method("TRACE", null);
break;
case Request.Method.PATCH:
builder.patch(createRequestBody(request));
break;
default:
throw new IllegalStateException("Unknown method type.");
}
}
private static ProtocolVersion parseProtocol(final Protocol p) {
switch (p) {
case HTTP_1_0:
return new ProtocolVersion("HTTP", 1, 0);
case HTTP_1_1:
return new ProtocolVersion("HTTP", 1, 1);
case SPDY_3:
return new ProtocolVersion("SPDY", 3, 1);
case HTTP_2:
return new ProtocolVersion("HTTP", 2, 0);
}
throw new IllegalAccessError("Unkwown protocol");
}
private static RequestBody createRequestBody(Request r) throws AuthFailureError {
final byte[] body = r.getBody();
if (body == null) {
return null;
}
return RequestBody.create(MediaType.parse(r.getBodyContentType()), body);
}
}
@emarc-anytimes

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commented Sep 30, 2016

typo on line 171: throw new IllegalAccessError("Unkwown protocol");

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