Added exporter conditionals on properties for otlp and jaeger; fixes gh-115

Author: marcingrzejszczak

spring-cloud-sleuth-otel-autoconfigure/src/main/java/org/springframework/cloud/sleuth/autoconfig/otel/OtelExporterConfiguration.java

@@ -67,6 +67,7 @@ public SpanExporter customize(SpanExporter spanExporter) {
 
 	@Configuration(proxyBeanMethods = false)
 	@ConditionalOnClass(JaegerGrpcSpanExporter.class)
+	@ConditionalOnProperty(value = "spring.sleuth.otel.exporter.jaeger.enabled", matchIfMissing = true)
 	static class JaegerExporterConfiguration {
 
 		@Bean
@@ -88,6 +89,7 @@ JaegerGrpcSpanExporter otelJaegerGrpcSpanExporter(OtelExporterProperties propert
 
 	@Configuration(proxyBeanMethods = false)
 	@ConditionalOnClass(OtlpGrpcSpanExporter.class)
+	@ConditionalOnProperty(value = "spring.sleuth.otel.exporter.otlp.enabled", matchIfMissing = true)
 	static class OtlpExporterConfiguration {
 
 		@Bean

spring-cloud-sleuth-otel-autoconfigure/src/main/java/org/springframework/cloud/sleuth/autoconfig/otel/OtelExporterProperties.java

@@ -85,6 +85,11 @@ public void setEnabled(boolean enabled) {
 	 */
 	public static class Otlp {
 
+		/**
+		 * Enables OTLP exporter.
+		 */
+		private boolean enabled = true;
+
 		/**
 		 * Timeout in millis.
 		 */
@@ -124,13 +129,26 @@ public void setHeaders(Map<String, String> headers) {
 			this.headers = headers;
 		}
 
+		public boolean isEnabled() {
+			return this.enabled;
+		}
+
+		public void setEnabled(boolean enabled) {
+			this.enabled = enabled;
+		}
+
 	}
 
 	/**
 	 * Integrations with Jaeger exporter.
 	 */
 	public static class Jaeger {
 
+		/**
+		 * Enables Jaeger exporter.
+		 */
+		private boolean enabled = true;
+
 		/**
 		 * Timeout in millis.
 		 */
@@ -157,6 +175,14 @@ public void setEndpoint(String endpoint) {
 			this.endpoint = endpoint;
 		}
 
+		public boolean isEnabled() {
+			return this.enabled;
+		}
+
+		public void setEnabled(boolean enabled) {
+			this.enabled = enabled;
+		}
+
 	}
 
 }