volley+okhttp

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package com.github.obsessive.library.utils;import com.android.volley.AuthFailureError;import com.android.volley.Request;import com.android.volley.toolbox.HttpStack;import com.squareup.okhttp.Call;import com.squareup.okhttp.Headers;import com.squareup.okhttp.MediaType;import com.squareup.okhttp.OkHttpClient;import com.squareup.okhttp.Protocol;import com.squareup.okhttp.RequestBody;import com.squareup.okhttp.Response;import com.squareup.okhttp.ResponseBody;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;/** * Author:  Tau.Chen * Email:   1076559197@qq.com | tchen0707@gmail.com * Date:    15/8/17 10:01 * Description: */public class OkHttpStack implements HttpStack {    private final OkHttpClient mClient;    public OkHttpStack(OkHttpClient client) {        this.mClient = client;    }    @Override    public HttpResponse performRequest(Request<?> request, Map<String, String> additionalHeaders)            throws IOException, AuthFailureError {        OkHttpClient client = mClient.clone();        int timeoutMs = request.getTimeoutMs();        client.setConnectTimeout(timeoutMs, TimeUnit.MILLISECONDS);        client.setReadTimeout(timeoutMs, TimeUnit.MILLISECONDS);        client.setWriteTimeout(timeoutMs, TimeUnit.MILLISECONDS);        com.squareup.okhttp.Request.Builder okHttpRequestBuilder = new com.squareup.okhttp.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);        com.squareup.okhttp.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(com.squareup.okhttp.Request.Builder builder, 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);    }}
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