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Exporting Spring Cloud Sleuth spans automatically using Azure Monitor OpenTelemetry Exporter client library for Java

I'm trying to use Azure Monitor OpenTelemetry Exporter client library for Java to export all traces/spans from Spring Cloud Sleuth to Azure Monitor. This integration seems to only work with the newest version of Spring Cloud Sleuth after the recent dependency version updates.
However instead of using azureMonitorExporter.export(spanData) manually, I would like to export all traces/spans automatically for the whole application by just adding a configuration for Azure exporter. This could then easily be added to a new project.
I don't have much experience using Spring/Sleuth/OpenTelemetry, but AzureMonitorExporter implements SpanExporter, so I thought one option could be to create a configuration class that contains the following.
#Bean
public SpanExporter exporter() {
return new AzureMonitorExporterBuilder()
.instrumentationKey("{KEY}")
.buildExporter();
};
And then it could be used in the main class using:
#Autowired
SpanExporter exporter;
However I'm not sure if this is the right way or how to continue from here to actually get the exporter to start exporting traces/spans automatically to Azure monitor.
My pom.xml looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.2-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>trace-demo-5-updated</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>trace-demo-5-updated</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
<spring-cloud.version>2020.0.0-SNAPSHOT</spring-cloud.version>
</properties>
<dependencies>
<!-- Sleuth with Brave tracer implementation -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.azure</groupId>
<artifactId>opentelemetry-exporters-azuremonitor</artifactId>
<version>1.0.0-beta.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-sleuth-otel</artifactId>
<version>3.0.0-M6</version>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</pluginRepository>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>

Update (2020-01-26):
With today's release of Spring Cloud Sleuth OTel (spring-cloud-sleuth-otel:1.0.0-M3) and The OTel upgrade in the Azure SDK, your original issue should disappear.
Original Answer
(TL;DR: last paragraph)
The Sleuth 3.0 Migration Guide can help you out a lot here. Sleuth supports two tracing systems Brave (default) and OpenTelemetry (incubator).
In order to use OpenTelemetry, you need to remove Brave (just exclude spring-cloud-sleuth-brave) and add OpenTelemetry (spring-cloud-sleuth-otel-autoconfigure with spring-cloud-sleuth-otel-dependencies). See the docs I linked.
After you do this, your SpanExporter should be used, here's a pom.xml I created based on yours. Btw, adding a sample project (e.g.: in a GitHub repo) could help a lot for everyone who is trying to help so that they don't need to create one themselves.
Unfortunately, this still won't work, you will still face with this exception at startup:
Caused by: java.lang.ClassNotFoundException: io.opentelemetry.common.AttributeValue
This is because opentelemetry-exporters-azuremonitor:1.0.0-beta.1 depends on OpenTelemetry 0.8.0 while the latest spring-cloud-sleuth-otel (1.0.0-M2, we released it today) is using the latest OpenTelemetry (0.13.1). Also, OpenTelemetry introduced breaking changes between minor versions, e.g.: the AttributeValue class was removed in OpenTelemetry 0.9.1.
Sleuth supports OpenTelemetry since Sleuth 3.0.0-M5, The OpenTelemetry version was 0.10 back then so there is no Sleuth version available that would support an OpenTelemetry version as old as opentelemetry-exporters-azuremonitor:1.0.0-beta.1 needs.
So the solution would be fixing your pom.xml and opentelemetry-exporters-azuremonitor supporting the latest OpenTelemetry.

Example Code imports are missing in jzy3d

The Example code imports are missing. Does anyone know what I not including?
I got the imports for mvn from http://www.jzy3d.org/download-0.9.1.php
The example code is from https://github.com/jzy3d/jzy3d-api/tree/master/jzy3d-javafx/src/main/java/org/jzy3d/demos/javafx
and these three imports are causing problems. I didn't see any other mvn imports
import org.jzy3d.javafx.JavaFXChartFactory;
import org.jzy3d.javafx.JavaFXRenderer3d;
import org.jzy3d.javafx.controllers.mouse.JavaFXCameraMouseController;
<!-- <dependency>
<groupId>org.jzy3d</groupId>
<artifactId>jzy3d-api</artifactId>
<version>1.0.0</version>
</dependency>-->
<dependency>
<groupId>org.jzy3d</groupId>
<artifactId>jzy3d-api</artifactId>
<version>0.9.1</version>
</dependency>
<!-- <dependency>
<groupId>org.jzy3d</groupId>
<artifactId>jzy3d-api</artifactId>
<version>0.9.2-SNAPSHOT</version>
</dependency>-->
<repositories>
<repository>
<id>jzy3d-snapshots</id>
<name>Jzy3d Snapshots</name>
<url>http://maven.jzy3d.org/snapshots</url>
</repository>
<repository>
<id>jzy3d-releases</id>
<name>Jzy3d Releases</name>
<url>http://maven.jzy3d.org/releases</url>
</repository>
</repositories>

Those classes are available in this maven dependency.
<dependency>
<groupId>org.jzy3d</groupId>
<artifactId>jzy3d-javafx</artifactId>
<version>1.0.0</version>
</dependency>
Add only the release repository.
<repositories>
<repository>
<id>jzy3d-releases</id>
<name>Jzy3d Releases</name>
<url>http://maven.jzy3d.org/releases </url>
</repository>
</repositories>

How to make Infinispan work with camel

import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.infinispan.InfinispanConstants;
import org.apache.camel.component.jackson.JacksonDataFormat;
import org.apache.camel.model.dataformat.JsonLibrary;
import uk.co.sammy.model.Collection;
public class InfinispanRoute extends RouteBuilder {
private JacksonDataFormat json = new JacksonDataFormat(Collection.class);
#Override
public void configure() throws Exception {
from("file:src/data?noop=true&include=.*.json")
.choice()
.when()
.jsonpath("$..CustInfo[?(#.firstName == 'Sammy')]").unmarshal(json)
.log("Got customer data for ${body.custInfo.firstName}")
.setHeader(InfinispanConstants.OPERATION, constant(InfinispanConstants.PUT_IF_ABSENT))
.setHeader(InfinispanConstants.KEY, simple("${body.custInfo.firstName}"))
.to("infinispan://localhost")
.marshal().json(JsonLibrary.Jackson)
.to("activemq:queue:incomingApplication", "activemq:queue:customerDetails");
from("activemq:queue:incomingApplication")
.setHeader(InfinispanConstants.OPERATION, constant(InfinispanConstants.GET))
.setHeader(InfinispanConstants.KEY, constant("${body.custInfo.firstName}"))
.to("infinispan://foo?cacheName=localCache")
.setBody(simple("${header.CamelInfinispanOperationResult}"))
.to("activemq:output");
}
}
My pom.xml looks like the below
<properties>
<activemq.version>5.14.1</activemq.version>
<camel.version>2.18.0</camel.version>
<infinispan.version>8.3.0.Final-redhat-1</infinispan.version>
<camel-jbossdatagrid.version>6.6.1.Final-redhat-1</camel-jbossdatagrid.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-core</artifactId>
<version>${camel.version}</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jackson</artifactId>
<version>${camel.version}</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jsonpath</artifactId>
<version>${camel.version}</version>
</dependency>
<dependency>
<groupId>org.infinispan</groupId>
<artifactId>infinispan-embedded</artifactId>
<version>${infinispan.version}</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jbossdatagrid</artifactId>
<version>${camel-jbossdatagrid.version}</version>
</dependency>
<!--ActiveMQ -->
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-camel</artifactId>
<version>${activemq.version}</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-pool</artifactId>
<version>${activemq.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.10</version>
</dependency>
<dependency>
<groupId>org.ow2.asm</groupId>
<artifactId>asm-all</artifactId>
<version>5.1</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>fuse-release</id>
<name>jboss Release Repository</name>
<releases>
<updatePolicy>never</updatePolicy>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
<url>http://repo.fusesource.com/nexus/content/groups/public/</url>
</repository>
</repositories>
</project>
I have tried for three days to get this simple sample code to work with Infinispan using the REdhat getting started guide and downloaded the quickstart zip to run that but still won't work! I keep getting the error "cannot connect to foo:11222" or "pool not open" by Spring JMS then a warning about mixing Uber and Jars version. I started off using ehcache which was a pain to implement because of limited simple examples that show how to store, retrieve and clear a cache from rest calls etc. Now, I need this to work so I can easily migrate it to Openshift but, still won't work! Every time I restart the project, I get different errors. Please any help to step by step setup Infinispan to work using my above code will be SERIOUSLY appreciated. Thanks guys!
P.S: I've read through the Redhat data grid getting started page and followed their instructions before doing this as my last resort!!!

Using the "infinispan://localhost" uri format will try to connect to an Infinispan server. To use an embedded cache, you should use something like "infinispan://?cacheName=localCache"

I see a few errors in the example you have provided:
1st route:
You should set the value you want to put in the cache with InfinispanConstants.VALUE
2nd route:
You should use the same cache uses by the first route (i.e. same cache name)
You should use simple to set InfinispanConstants.KEY

What is a maven repository url for jung2 (java graph framework)?

I am looking for a maven repository that distributes jung2 packages. Unfortunetely I can not find any information on its location.
Update:
I have included the cental repository repo1.
<repository>
<id>central</id>
<name>Maven Repository Switchboard</name>
<layout>default</layout>
<url>http://repo1.maven.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
But I still get an error: 10/4/10 1:31:57 PM CEST: Missing artifact net.sf.jung:jung2:jar:2.0.1:compile. I use Maven 3.0-SNAPSHOT on Mac osX.
Update2: Declaration of Jung2 dependency:
<dependency>
<groupId>net.sf.jung</groupId>
<artifactId>jung2</artifactId>
<version>2.0.1</version>
<type>pom</type>
</dependency>
After adding pom, there is no error message. Unfortunetely maven does not retrieve jars of jung2 modules.
[Solved] I have added also a dependency to jung-graph-impl and I can now use jung2 in my project:
<dependency>
<groupId>net.sf.jung</groupId>
<artifactId>jung-graph-impl</artifactId>
<version>2.0.1</version>
</dependency>

On repo1 :
<dependency>
<groupId>net.sf.jung</groupId>
<artifactId>jung2</artifactId>
<version>2.0.1</version>
</dependency>
Resources :
mvnrepository.com - Jung 2

You need to add this to the pom.xml. This work with maven central. No need to specify repository. But you can still use <url>http://maven.apache.org</url> directly in your pom.xml.
<dependency>
<groupId>net.sf.jung</groupId>
<artifactId>jung2</artifactId>
<version>2.0.1</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>net.sf.jung</groupId>
<artifactId>jung-graph-impl</artifactId>
<version>2.0.1</version>
</dependency>

What is a maven repository url for jung2 (java graph framework)?
Answer: The Central Repository and its mirrors
But generally, you experiencied issue with dependencies.
To make your project buildable with Jung2 library, add specific modules (not jung2) to your pom.xml.
Example:
<dependency>
<groupId>net.sf.jung</groupId>
<artifactId>jung-graph-impl</artifactId>
<version>2.0.1</version>
</dependency>
<dependency>
<groupId>net.sf.jung</groupId>
<artifactId>jung-algorithms</artifactId>
<version>2.0.1</version>
</dependency>
See the list of the modules http://mvnrepository.com/artifact/net.sf.jung
Adding the following:
<dependency>
<groupId>net.sf.jung</groupId>
<artifactId>jung2</artifactId>
<version>2.0.1</version>
<type>pom</type>
</dependency>
will not work in the way one could expect.
The reason is declaration of modules inside of profiles in pom.xml for jung2 artifact:
<profiles>
<profile>
<id>all</id>
<activation>
<property>
<name>all</name>
</property>
</activation>
<modules>
<module>jung-api</module>
<module>jung-graph-impl</module>
<module>jung-algorithms</module>
<module>jung-io</module>
<module>jung-visualization</module>
<module>jung-samples</module>
<module>jung-jai</module>
<module>jung-jai-samples</module>
<module>jung-3d</module>
<module>jung-3d-demos</module>
.............
</profiles>

Try Maven Repository or Maven Repository Browser.

Is there a public Maven repository that contains spring-core 3 yet?

Is there a public Maven repository that contains spring-core 3 yet?
I can find 2.5.4 all day long but not 3. If there answer is yes, please include the location in the answer.

You can get the milestones and release candidates from Spring's Maven repository. The repository is difficult to browse, but the files are there, e.g. the spring-core 3.0.0.RC1 pom
Here is an example repository declaration and dependency:
<repositories>
<repository>
<id>springsource maven repo</id>
<url>http://maven.springframework.org/milestone</url>
</repository>
</repositories>
...
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.0.0.RC1</version>
</dependency>
</dependencies>

Since the question was asked, the Spring Enterprise Bundle Repository has been put online and is easier to browse.
Browse by Library, and then by Spring Framework, and you'll find what you're looking for.
<repository>
<id>com.springsource.repository.bundles.release</id>
<name>SpringSource Enterprise Bundle Repository - SpringSource Bundle Releases</name>
<url>http://repository.springsource.com/maven/bundles/release</url>
</repository>
...
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.core</artifactId>
<version>3.0.2.RELEASE</version>
</dependency>