/
OkHttp3Stack.java
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/
OkHttp3Stack.java
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package com.example.allen.volleymanager.volley;
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.Headers;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Protocol;
import okhttp3.RequestBody;
import okhttp3.Response;
import okhttp3.ResponseBody;
/**
* Created by Allen Lin on 2016/02/17.
*/
public class OkHttp3Stack implements HttpStack {
private final OkHttpClient mClient;
public OkHttp3Stack(OkHttpClient client) {
this.mClient = client;
}
private static HttpEntity entityFromOkHttpResponse(Response response) throws IOException {
BasicHttpEntity entity = new BasicHttpEntity();
ResponseBody body = response.body();
entity.setContent(body.byteStream());
entity.setContentLength(body.contentLength());
entity.setContentEncoding(response.header("Content-Encoding"));
if (body.contentType() != null) {
entity.setContentType(body.contentType().type());
}
return entity;
}
@SuppressWarnings("deprecation")
private static void setConnectionParametersForRequest
(okhttp3.Request.Builder builder, Request<?> request)
throws IOException, AuthFailureError {
switch (request.getMethod()) {
case Request.Method.DEPRECATED_GET_OR_POST:
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 RequestBody createRequestBody(Request request) throws AuthFailureError {
final byte[] body = request.getBody();
if (body == null) return null;
return RequestBody.create(MediaType.parse(request.getBodyContentType()), body);
}
private static ProtocolVersion parseProtocol(final Protocol protocol) {
switch (protocol) {
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");
}
@Override
public HttpResponse performRequest(Request<?> request, Map<String, String> additionalHeaders)
throws IOException, AuthFailureError {
int timeoutMs = request.getTimeoutMs();
OkHttpClient client = mClient.newBuilder()
.readTimeout(timeoutMs, TimeUnit.MILLISECONDS)
.connectTimeout(timeoutMs, TimeUnit.MILLISECONDS)
.writeTimeout(timeoutMs, TimeUnit.MILLISECONDS)
.build();
okhttp3.Request.Builder okHttpRequestBuilder = new okhttp3.Request.Builder();
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);
okhttp3.Request okhttp3Request = okHttpRequestBuilder.url(request.getUrl()).build();
Response okHttpResponse = client.newCall(okhttp3Request).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;
}
}