WywTed commented on issue #6951:
URL: https://github.com/apache/skywalking/issues/6951#issuecomment-841630135
nacos use its' own http client. before 1.3.2 they use apachehttpclient
4.5.3, and start 1.3.2, nacos-client use the specific client to send request
~~~
/*
* Copyright 1999-2018 Alibaba Group Holding Ltd.
*
* 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.alibaba.nacos.common.http.client.request;
import com.alibaba.nacos.common.constant.HttpHeaderConsts;
import com.alibaba.nacos.common.http.HttpClientConfig;
import com.alibaba.nacos.common.http.HttpUtils;
import com.alibaba.nacos.common.http.client.response.HttpClientResponse;
import com.alibaba.nacos.common.http.client.response.JdkHttpClientResponse;
import com.alibaba.nacos.common.http.param.Header;
import com.alibaba.nacos.common.http.param.MediaType;
import com.alibaba.nacos.common.model.RequestHttpEntity;
import com.alibaba.nacos.common.utils.IoUtils;
import com.alibaba.nacos.common.utils.JacksonUtils;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;
/**
* JDK http client request implement.
*
* @author mai.jh
*/
public class JdkHttpClientRequest implements HttpClientRequest {
private HttpClientConfig httpClientConfig;
public JdkHttpClientRequest(HttpClientConfig httpClientConfig) {
this.httpClientConfig = httpClientConfig;
}
/**
* Use specified {@link SSLContext}.
*
* @param sslContext ssl context
*/
@SuppressWarnings("checkstyle:abbreviationaswordinname")
public void setSSLContext(SSLContext sslContext) {
if (sslContext != null) {
HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
}
}
/**
* Replace the default HostnameVerifier.
*
* @param hostnameVerifier custom hostnameVerifier
*/
@SuppressWarnings("checkstyle:abbreviationaswordinname")
public void replaceSSLHostnameVerifier(HostnameVerifier
hostnameVerifier) {
if (hostnameVerifier != null) {
HttpsURLConnection.setDefaultHostnameVerifier(hostnameVerifier);
}
}
@Override
public HttpClientResponse execute(URI uri, String httpMethod,
RequestHttpEntity requestHttpEntity)
throws Exception {
final Object body = requestHttpEntity.getBody();
final Header headers = requestHttpEntity.getHeaders();
replaceDefaultConfig(requestHttpEntity.getHttpClientConfig());
HttpURLConnection conn = (HttpURLConnection)
uri.toURL().openConnection();
Map<String, String> headerMap = headers.getHeader();
if (headerMap != null && headerMap.size() > 0) {
for (Map.Entry<String, String> entry : headerMap.entrySet()) {
conn.setRequestProperty(entry.getKey(), entry.getValue());
}
}
conn.setConnectTimeout(this.httpClientConfig.getConTimeOutMillis());
conn.setReadTimeout(this.httpClientConfig.getReadTimeOutMillis());
conn.setRequestMethod(httpMethod);
if (body != null && !"".equals(body)) {
String contentType =
headers.getValue(HttpHeaderConsts.CONTENT_TYPE);
String bodyStr = JacksonUtils.toJson(body);
if (MediaType.APPLICATION_FORM_URLENCODED.equals(contentType)) {
Map<String, String> map = JacksonUtils.toObj(bodyStr,
HashMap.class);
bodyStr = HttpUtils.encodingParams(map,
headers.getCharset());
}
if (bodyStr != null) {
conn.setDoOutput(true);
byte[] b = bodyStr.getBytes();
conn.setRequestProperty("Content-Length",
String.valueOf(b.length));
OutputStream outputStream = conn.getOutputStream();
outputStream.write(b, 0, b.length);
outputStream.flush();
IoUtils.closeQuietly(outputStream);
}
}
conn.connect();
return new JdkHttpClientResponse(conn);
}
/**
* Replace the HTTP config created by default with the HTTP config
specified in the request.
*
* @param replaceConfig http config
*/
private void replaceDefaultConfig(HttpClientConfig replaceConfig) {
if (replaceConfig == null) {
return;
}
this.httpClientConfig = replaceConfig;
}
@Override
public void close() throws IOException {
}
}
~~~
there is no adapter plugin for this ,so there is no trace send to
skywalking-oap server.
If i still didn't describe it clearly, we can discuss on QQ.
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