移除无用的httpclient-dubbo-attachment。需要适配时，由应用系统自身控制。

skywalking-collector/skywalking-agent/pom.xml

@@ -39,11 +39,6 @@
             <artifactId>skywalking-httpClient-4.x-plugin</artifactId>
             <version>1.0-Final</version>
         </dependency>
-        <dependency>
-            <groupId>com.ai.cloud</groupId>
-            <artifactId>skywalking-httpClient-4.x-plugin-dubbox-rest-attachment</artifactId>
-            <version>1.0-Final</version>
-        </dependency>
         <dependency>
             <groupId>com.ai.cloud</groupId>
             <artifactId>skywalking-dubbo-plugin</artifactId>

skywalking-collector/skywalking-sdk-plugin/httpClient-4.x-plugin-dubbox-rest-attachment/README.md

-# 追踪通过httpClient调用dubbox发布的rest服务？
-- 使用httpClient-4.x-plugin插件，[查看](../mysql-plugin)
-- 引入所需插件
-```xml
-<dependency>
-  <groupId>com.ai.cloud</groupId>
-  <artifactId>skywalking-httpClient-4.x-plugin-dubbox-rest-attachment</artifactId>
-  <version>{latest_version}</version>
-</dependency>
-```

skywalking-collector/skywalking-sdk-plugin/httpClient-4.x-plugin-dubbox-rest-attachment/pom.xml

-<?xml version="1.0"?>
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-  <modelVersion>4.0.0</modelVersion>
-	<parent>
-		<groupId>com.ai.cloud</groupId>
-		<artifactId>skywalking-sdk-plugin</artifactId>
-		<version>1.0-Final</version>
-	</parent>
-	
-	<artifactId>skywalking-httpClient-4.x-plugin-dubbox-rest-attachment</artifactId>
-	<packaging>jar</packaging>
-
-    <name>httpClient-4.x-plugin-dubbox-rest-attachment</name>
-    <url>http://maven.apache.org</url>
-    
-  <properties>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-  </properties>
-  
-  <dependencies>
-		<dependency>
-			<groupId>com.ai.cloud</groupId>
-			<artifactId>skywalking-httpClient-4.x-plugin</artifactId>
-			<version>1.0-Final</version>
-			<scope>compile</scope>
-		</dependency>
-		
-		
-		<dependency>
-			<groupId>org.apache.httpcomponents</groupId>
-			<artifactId>httpclient</artifactId>
-			<version>4.3</version>
-			<scope>test</scope>
-		</dependency>
-		<!-- 
-		<dependency>
-			<groupId>org.apache.httpcomponents</groupId>
-			<artifactId>httpclient</artifactId>
-			<version>4.2</version>
-			<scope>test</scope>
-		</dependency>
-		-->
-		
-		<dependency>
-			<groupId>org.apache.logging.log4j</groupId>
-			<artifactId>log4j-core</artifactId>
-			<version>2.4.1</version>
-			<scope>test</scope>
-		</dependency>
-	
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<version>4.12</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-resources-plugin</artifactId>
-				<version>2.4.3</version>
-				<configuration>
-					<encoding>${project.build.sourceEncoding}</encoding>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
-	
-	<distributionManagement>
-		<repository>
-			<id>bintray-wu-sheng-sky-walking-repository</id>
-			<name>wu-sheng-sky-walking-repository</name>
-			<url>https://api.bintray.com/maven/wu-sheng/skywalking/com.ai.cloud.skywalking-httpClient-4.x-plugin-dubbox-rest-attachment/;publish=1</url>
-		</repository>
-	</distributionManagement>
-</project>

skywalking-collector/skywalking-sdk-plugin/httpClient-4.x-plugin-dubbox-rest-attachment/src/main/java/org/skywalking/httpClient/v4/plugin/dubbox/rest/attachment/DubboxRestHeadSetterAttachment.java

-package org.skywalking.httpClient.v4.plugin.dubbox.rest.attachment;
-
-import org.skywalking.httpClient.v4.plugin.HttpClientExecuteInterceptor;
-
-import com.ai.cloud.skywalking.plugin.interceptor.MethodMatcher;
-import com.ai.cloud.skywalking.plugin.interceptor.enhance.ClassInstanceMethodsEnhancePluginDefine;
-import com.ai.cloud.skywalking.plugin.interceptor.enhance.IntanceMethodsAroundInterceptor;
-
-public class DubboxRestHeadSetterAttachment extends ClassInstanceMethodsEnhancePluginDefine {
-
-	/**
-	 * this method is called as InterceptorPluginDefine<br/>
-	 * don't return be intercepted classname, <br/>
-	 * just run as a pre setter of attribute:HttpClientExecuteInterceptor.TRACE_HEAD_NAME
-	 */
-	@Override
-	public String getBeInterceptedClassName() {
-		HttpClientExecuteInterceptor.TRACE_HEAD_NAME = "Dubbo-Attachments";
-		return null;
-	}
-
-	@Override
-	public MethodMatcher[] getInstanceMethodsMatchers() {
-		return null;
-	}
-
-	@Override
-	public IntanceMethodsAroundInterceptor getInstanceMethodsInterceptor() {
-		return null;
-	}
-
-}

skywalking-collector/skywalking-sdk-plugin/httpClient-4.x-plugin-dubbox-rest-attachment/src/main/resources/skywalking-plugin.def

-org.skywalking.httpClient.v4.plugin.dubbox.rest.attachment.DubboxRestHeadSetterAttachment
\ No newline at end of file

skywalking-collector/skywalking-sdk-plugin/httpClient-4.x-plugin-dubbox-rest-attachment/src/test/java/test/skywalking/httpClient/v4x/plugin/dubbox/rest/attachment/TestHttpClientV43.java

-package test.skywalking.httpClient.v4x.plugin.dubbox.rest.attachment;
-
-import java.io.IOException;
-import java.lang.reflect.InvocationTargetException;
-import java.sql.SQLException;
-
-import org.apache.http.HttpEntity;
-import org.apache.http.HttpResponse;
-import org.apache.http.client.methods.HttpGet;
-import org.apache.http.impl.client.CloseableHttpClient;
-import org.apache.http.impl.client.HttpClientBuilder;
-import org.apache.http.util.EntityUtils;
-import org.junit.Test;
-
-import com.ai.cloud.skywalking.plugin.TracingBootstrap;
-
-public class TestHttpClientV43 {
-	@Test
-	public void testsql() throws IllegalAccessException,
-			IllegalArgumentException, InvocationTargetException,
-			NoSuchMethodException, SecurityException, ClassNotFoundException {
-		TracingBootstrap
-				.main(new String[] { "test.skywalking.httpClient.v4x.plugin.dubbox.rest.attachment.TestHttpClientV43" });
-	}
-
-	public static void main(String[] args) throws ClassNotFoundException,
-			SQLException, InterruptedException {
-		HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
-		// HttpClient
-		CloseableHttpClient closeableHttpClient = httpClientBuilder.build();
-
-		HttpGet httpGet = new HttpGet("http://www.baidu.com");
-		System.out.println(httpGet.getRequestLine());
-		try {
-			// 执行get请求
-			HttpResponse httpResponse = closeableHttpClient.execute(httpGet);
-			// 获取响应消息实体
-			HttpEntity entity = httpResponse.getEntity();
-			// 响应状态
-			System.out.println("status:" + httpResponse.getStatusLine());
-			// 判断响应实体是否为空
-			if (entity != null) {
-				System.out.println("contentEncoding:"
-						+ entity.getContentEncoding());
-				System.out.println("response content:"
-						+ EntityUtils.toString(entity));
-			}
-		} catch (IOException e) {
-			e.printStackTrace();
-		} finally {
-			try { // 关闭流并释放资源
-				closeableHttpClient.close();
-			} catch (IOException e) {
-				e.printStackTrace();
-			}
-		}
-		
-		Thread.sleep(5*1000);
-	}
-}

skywalking-collector/skywalking-sdk-plugin/httpClient-4.x-plugin-dubbox-rest-attachment/src/test/resources/log4j2.xml

-<?xml version="1.0" encoding="UTF-8"?>
-<Configuration status="error">
-	<Appenders>
-		<Console name="Console" target="SYSTEM_OUT">
-			<PatternLayout pattern="%d [%t](%F:%L) %-5level %logger{36} - %msg%n" />
-		</Console>
-		<Console name="Console2" target="SYSTEM_OUT">
-			<PatternLayout pattern="%d [%t](%F:%L) %-5level %logger{36} - %msg%n" />
-		</Console>
-	</Appenders>
-	<Loggers>
-		<Root level="debug">
-			<AppenderRef ref="Console" />
-		</Root>
-	</Loggers>
-</Configuration>
\ No newline at end of file

skywalking-collector/skywalking-sdk-plugin/httpClient-4.x-plugin-dubbox-rest-attachment/src/test/resources/sky-walking.auth

-#skyWalking用户ID
-skywalking.user_id=123
-#skyWalking应用编码
-skywalking.application_code=test
-#skywalking auth的环境变量名字
-skywalking.auth_system_env_name=SKYWALKING_RUN
-#skywalking数据编码
-skywalking.charset=UTF-8
-
-#是否打印数据
-buriedpoint.printf=true
-#埋点异常的最大长度
-buriedpoint.max_exception_stack_length=4000
-#业务字段的最大长度
-buriedpoint.businesskey_max_length=300
-#过滤异常
-buriedpoint.exclusive_exceptions=java.lang.RuntimeException
-
-#最大发送者的连接数阀比例
-sender.connect_percent=100
-#发送服务端配置
-sender.servers_addr=127.0.0.1:34000
-#最大发送的副本数量
-sender.max_copy_num=2
-#发送的最大长度
-sender.max_send_length=20000
-#当没有Sender时,尝试获取sender的等待周期
-sender.retry_get_sender_wait_interval=2000
-
-
-
-
-#最大消费线程数
-consumer.max_consumer=2
-#消费者最大等待时间
-consumer.max_wait_time=5
-#发送失败等待时间  
-consumer.consumer_fail_retry_wait_interval=50
-
-#每个Buffer的最大个数
-buffer.buffer_max_size=18000
-#Buffer池的最大长度
-buffer.pool_size=5
-
-#发送检查线程检查周期 
-senderchecker.check_polling_time=200
-

skywalking-collector/skywalking-sdk-plugin/pom.xml

@@ -16,7 +16,6 @@
 		<module>jdbc-plugin</module>
 		<module>web-plugin</module>
 		<module>httpClient-4.x-plugin</module>
-		<module>httpClient-4.x-plugin-dubbox-rest-attachment</module>
 		<module>jedis-2.x-plugin</module>
 	</modules>
 	<packaging>pom</packaging>