refactor: migrate tracing core from boot-start to dubbo deployer

.artifacts

@@ -114,4 +114,5 @@ dubbo-nacos-spring-boot-starter
 dubbo-zookeeper-spring-boot-starter
 dubbo-zookeeper-curator5-spring-boot-starter
 dubbo-spring-security
+dubbo-tracing
 dubbo-xds

dubbo-cluster/pom.xml

@@ -86,10 +86,5 @@
             <version>${project.parent.version}</version>
             <optional>true</optional>
         </dependency>
-        <dependency>
-            <groupId>io.micrometer</groupId>
-            <artifactId>micrometer-tracing-integration-test</artifactId>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 </project>

dubbo-cluster/src/main/resources/META-INF/dubbo/internal/org.apache.dubbo.rpc.cluster.filter.ClusterFilter

@@ -1,5 +1,4 @@
 consumercontext=org.apache.dubbo.rpc.cluster.filter.support.ConsumerContextFilter
 consumer-classloader=org.apache.dubbo.rpc.cluster.filter.support.ConsumerClassLoaderFilter
 router-snapshot=org.apache.dubbo.rpc.cluster.router.RouterSnapshotFilter
-observationsender=org.apache.dubbo.rpc.cluster.filter.support.ObservationSenderFilter
 metricsClusterFilter=org.apache.dubbo.rpc.cluster.filter.support.MetricsClusterFilter

dubbo-common/src/main/java/org/apache/dubbo/common/constants/LoggerCodeConstants.java

@@ -92,6 +92,8 @@ public interface LoggerCodeConstants {
 
     String VULNERABILITY_WARNING = "0-28";
 
+    String COMMON_NOT_FOUND_TRACER_DEPENDENCY = "0-29";
+
 
     // Registry module
 

dubbo-common/src/main/java/org/apache/dubbo/config/nested/BaggageConfig.java

@@ -39,6 +39,19 @@ public class BaggageConfig implements Serializable {
      */
     private List<String> remoteFields = new ArrayList<>();
 
+    public BaggageConfig() {
+    }
+
+    public BaggageConfig(Boolean enabled) {
+        this.enabled = enabled;
+    }
+
+    public BaggageConfig(Boolean enabled, Correlation correlation, List<String> remoteFields) {
+        this.enabled = enabled;
+        this.correlation = correlation;
+        this.remoteFields = remoteFields;
+    }
+
     public Boolean getEnabled() {
         return enabled;
     }
@@ -76,6 +89,18 @@ public static class Correlation implements Serializable {
          */
         private List<String> fields = new ArrayList<>();
 
+        public Correlation() {
+        }
+
+        public Correlation(boolean enabled) {
+            this.enabled = enabled;
+        }
+
+        public Correlation(boolean enabled, List<String> fields) {
+            this.enabled = enabled;
+            this.fields = fields;
+        }
+
         public boolean isEnabled() {
             return this.enabled;
         }

dubbo-common/src/main/java/org/apache/dubbo/config/nested/ExporterConfig.java

@@ -17,13 +17,13 @@
 
 package org.apache.dubbo.config.nested;
 
+import org.apache.dubbo.config.support.Nested;
+
 import java.io.Serializable;
 import java.time.Duration;
 import java.util.HashMap;
 import java.util.Map;
 
-import org.apache.dubbo.config.support.Nested;
-
 public class ExporterConfig implements Serializable {
 
     @Nested
@@ -56,15 +56,28 @@ public static class ZipkinConfig implements Serializable {
         private String endpoint;
 
         /**
-         * Connection timeout for requests to Zipkin.
+         * Connection timeout for requests to Zipkin. (seconds)
          */
         private Duration connectTimeout = Duration.ofSeconds(1);
 
         /**
-         * Read timeout for requests to Zipkin.
+         * Read timeout for requests to Zipkin. (seconds)
          */
         private Duration readTimeout = Duration.ofSeconds(10);
 
+        public ZipkinConfig() {
+        }
+
+        public ZipkinConfig(String endpoint) {
+            this.endpoint = endpoint;
+        }
+
+        public ZipkinConfig(String endpoint, Duration connectTimeout, Duration readTimeout) {
+            this.endpoint = endpoint;
+            this.connectTimeout = connectTimeout;
+            this.readTimeout = readTimeout;
+        }
+
         public String getEndpoint() {
             return endpoint;
         }
@@ -98,7 +111,7 @@ public static class OtlpConfig implements Serializable {
         private String endpoint;
 
         /**
-         * The maximum time to wait for the collector to process an exported batch of spans.
+         * The maximum time to wait for the collector to process an exported batch of spans. (seconds)
          */
         private Duration timeout = Duration.ofSeconds(10);
 
@@ -110,6 +123,24 @@ public static class OtlpConfig implements Serializable {
 
         private Map<String, String> headers = new HashMap<>();
 
+        public OtlpConfig() {
+        }
+
+        public OtlpConfig(String endpoint) {
+            this.endpoint = endpoint;
+        }
+
+        public OtlpConfig(String endpoint, Duration timeout) {
+            this.endpoint = endpoint;
+            this.timeout = timeout;
+        }
+
+        public OtlpConfig(String endpoint, Duration timeout, String compressionMethod) {
+            this.endpoint = endpoint;
+            this.timeout = timeout;
+            this.compressionMethod = compressionMethod;
+        }
+
         public String getEndpoint() {
             return endpoint;
         }

dubbo-common/src/main/java/org/apache/dubbo/config/nested/PropagationConfig.java

@@ -29,6 +29,13 @@ public class PropagationConfig implements Serializable {
      */
     private String type = W3C;
 
+    public PropagationConfig() {
+    }
+
+    public PropagationConfig(String type) {
+        this.type = type;
+    }
+
     public String getType() {
         return type;
     }

dubbo-common/src/main/java/org/apache/dubbo/config/nested/SamplingConfig.java

@@ -25,6 +25,13 @@ public class SamplingConfig implements Serializable {
      */
     private float probability = 0.10f;
 
+    public SamplingConfig() {
+    }
+
+    public SamplingConfig(float probability) {
+        this.probability = probability;
+    }
+
     public float getProbability() {
         return this.probability;
     }

dubbo-config/dubbo-config-api/pom.xml

@@ -72,6 +72,12 @@
             <version>${project.parent.version}</version>
         </dependency>
 
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-tracing</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+
         <dependency>
             <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo-monitor-api</artifactId>