Polished the code

bom/pom.xml

@@ -148,6 +148,11 @@
         <artifactId>zipkin-reporter-metrics-micrometer</artifactId>
         <version>${project.version}</version>
       </dependency>
+      <dependency>
+        <groupId>${project.groupId}</groupId>
+        <artifactId>zipkin-reporter-brave-otlp</artifactId>
+        <version>${project.version}</version>
+      </dependency>
     </dependencies>
   </dependencyManagement>
 

core/pom.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright 2016-2020 The OpenZipkin Authors
+    Copyright 2016-2023 The OpenZipkin 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

otlp/README.md

@@ -0,0 +1,42 @@
+# zipkin-otlp-reporter-brave
+This allows you to send spans recorded by Brave 5.12+ with a OTLP reporter.
+
+To start sending the spans you would need to use GRPC in the following way:
+
+```xml
+<dependency>
+    <groupId>io.grpc</groupId>
+    <artifactId>grpc-protobuf</artifactId>
+    <version>${grpc.version}</version>
+</dependency>
+<dependency>
+    <groupId>io.grpc</groupId>
+    <artifactId>grpc-stub</artifactId>
+    <version>${grpc.version}</version>
+</dependency>
+<dependency>
+    <groupId>io.grpc</groupId>
+    <artifactId>grpc-netty-shaded</artifactId>
+    <version>${grpc.version}</version>
+</dependency>
+```
+
+and then set up the `Reporter` and `SpanHandler` like this
+
+```java
+
+    SpanHandler otlpSpanHandler = OtlpSpanHandler
+      .create(OtlpReporter.create(ManagedChannelBuilder.forAddress("localhost", 4317)
+      // For demo purposes we disable security
+      .usePlaintext()));
+
+    Tracing tracing = Tracing.newBuilder()
+      .currentTraceContext(braveCurrentTraceContext)
+      .supportsJoin(false)
+      .traceId128Bit(true)
+      .sampler(Sampler.ALWAYS_SAMPLE)
+      // Add the SpanHandler
+      .addSpanHandler(otlpSpanHandler)
+      .localServiceName("my-service")
+      .build();
+```

otlp/bnd.bnd

@@ -0,0 +1,2 @@
+Export-Package: \
+  zipkin2.reporter.otlp