org.springframework.http.client.OkHttpClientHttpRequest Maven / Gradle / Ivy
/*
* Copyright 2002-2015 the original author or authors.
*
* 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 org.springframework.http.client;
import java.io.IOException;
import java.net.URI;
import java.net.URL;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import com.squareup.okhttp.Call;
import com.squareup.okhttp.Callback;
import com.squareup.okhttp.MediaType;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.RequestBody;
import com.squareup.okhttp.Response;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.util.StringUtils;
import org.springframework.util.concurrent.ListenableFuture;
import org.springframework.util.concurrent.SettableListenableFuture;
/**
* {@link ClientHttpRequest} implementation that uses OkHttp to execute requests.
*
* Created via the {@link OkHttpClientHttpRequestFactory}.
*
* @author Luciano Leggieri
* @author Arjen Poutsma
* @since 4.2
*/
class OkHttpClientHttpRequest extends AbstractBufferingAsyncClientHttpRequest implements ClientHttpRequest {
private final OkHttpClient client;
private final URI uri;
private final HttpMethod method;
public OkHttpClientHttpRequest(OkHttpClient client, URI uri, HttpMethod method) {
this.client = client;
this.uri = uri;
this.method = method;
}
@Override
public HttpMethod getMethod() {
return this.method;
}
@Override
public URI getURI() {
return this.uri;
}
@Override
protected ListenableFuture executeInternal(HttpHeaders headers, byte[] content)
throws IOException {
MediaType contentType = getContentType(headers);
RequestBody body = (content.length > 0 ? RequestBody.create(contentType, content) : null);
URL url = this.uri.toURL();
String methodName = this.method.name();
Request.Builder builder = new Request.Builder().url(url).method(methodName, body);
for (Map.Entry> entry : headers.entrySet()) {
String headerName = entry.getKey();
for (String headerValue : entry.getValue()) {
builder.addHeader(headerName, headerValue);
}
}
Request request = builder.build();
return new OkHttpListenableFuture(this.client.newCall(request));
}
private MediaType getContentType(HttpHeaders headers) {
String rawContentType = headers.getFirst("Content-Type");
return (StringUtils.hasText(rawContentType) ? MediaType.parse(rawContentType) : null);
}
@Override
public ClientHttpResponse execute() throws IOException {
try {
return executeAsync().get();
}
catch (InterruptedException ex) {
throw new IOException(ex.getMessage(), ex);
}
catch (ExecutionException ex) {
Throwable cause = ex.getCause();
if (cause instanceof IOException) {
throw (IOException) cause;
}
throw new IOException(cause.getMessage(), cause);
}
}
private static class OkHttpListenableFuture extends SettableListenableFuture {
private final Call call;
public OkHttpListenableFuture(Call call) {
this.call = call;
this.call.enqueue(new Callback() {
@Override
public void onResponse(Response response) {
set(new OkHttpClientHttpResponse(response));
}
@Override
public void onFailure(Request request, IOException ex) {
setException(ex);
}
});
}
@Override
protected void interruptTask() {
this.call.cancel();
}
}
}