Fixed brave redis setup

fixes gh-1971

spring-cloud-sleuth-brave/src/main/java/org/springframework/cloud/sleuth/brave/instrument/redis/ClientResourcesBuilderCustomizer.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2013-2021 the original author or 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
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.sleuth.brave.instrument.redis;
+
+import io.lettuce.core.resource.ClientResources;
+
+/**
+ * Customizer for {@link ClientResources.Builder}.
+ *
+ * @author Marcin Grzejszczak
+ * @since 3.0.4
+ */
+public interface ClientResourcesBuilderCustomizer {
+
+	/**
+	 * Customizes the builder.
+	 * @param builder builder to customize
+	 */
+	void customize(ClientResources.Builder builder);
+}

spring-cloud-sleuth-brave/src/main/java/org/springframework/cloud/sleuth/brave/instrument/redis/TraceLettuceClientResourcesBuilderCustomizer.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2013-2021 the original author or 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
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.sleuth.brave.instrument.redis;
+
+import brave.Tracing;
+import io.lettuce.core.resource.ClientResources;
+import io.lettuce.core.tracing.BraveTracing;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import org.springframework.beans.factory.config.BeanPostProcessor;
+
+/**
+ * {@link BeanPostProcessor} for wrapping Lettuce components in a tracing representation.
+ *
+ * @author Marcin Grzejszczak
+ * @since 3.0.4
+ */
+public class TraceLettuceClientResourcesBuilderCustomizer implements ClientResourcesBuilderCustomizer {
+
+	private final BraveTracing tracing;
+
+	public TraceLettuceClientResourcesBuilderCustomizer(Tracing tracing, String serviceName) {
+		this.tracing = BraveTracing.builder().tracing(tracing)
+				.excludeCommandArgsFromSpanTags()
+				.serviceName(serviceName).build();
+	}
+
+	@Override
+	public void customize(ClientResources.Builder builder) {
+		builder.tracing(this.tracing);
+	}
+}