Zipkin Hello World(一)

package help.lixin.zipkin;

import java.util.UUID;
import java.util.concurrent.TimeUnit;

import brave.Span;
import brave.Tracer;
import brave.Tracing;
import brave.sampler.Sampler;
import zipkin2.reporter.AsyncReporter;
import zipkin2.reporter.okhttp3.OkHttpSender;

public class HelloWorldTest {
	public static void main(String[] args) throws Exception {
		String endpoint = "http://127.0.0.1:9411/api/v2/spans";
		OkHttpSender sender = OkHttpSender.create(endpoint);
		AsyncReporter reporter = AsyncReporter.create(sender);
		
		
		Tracing tracing = Tracing.newBuilder()
				.localServiceName("brave-service")
				.spanReporter(reporter)
				.sampler(Sampler.ALWAYS_SAMPLE)
				.build();
		
		// 创建一个trace
		Tracer tracer = tracing.tracer();
		
		// 创建跨度
		Span span = tracer.newTrace()
				//tag 用来存放业务数据,方便进行检索
				.tag("request-id", UUID.randomUUID().toString())
				.name("brave-span")
				.start();
		
		// 业务处理所消耗时间
		TimeUnit.MILLISECONDS.sleep(10);
		
		// 跨度完成
		span.finish();
		
				
		tracing.close();
		reporter.close();
		sender.close();
	}
}