Add autoconfigure support for logging-otlp

sdk-extensions/autoconfigure/README.md

@@ -159,6 +159,16 @@ The logging exporter prints the name of the span along with its attributes to st
 | otel.metrics.exporter=logging | OTEL_METRICS_EXPORTER=logging | Select the logging exporter for metrics                              |
 | otel.logs.exporter=logging    | OTEL_LOGS_EXPORTER=logging    | Select the logging exporter for logs                                 |
 
+### Logging OTLP JSON exporter
+
+The logging-otlp exporter writes the telemetry data to the JUL logger in OLTP JSON form. It's a more verbose output mainly used for testing and debugging.
+
+| System property                    | Environment variable               | Description                                        |
+|------------------------------------|------------------------------------|----------------------------------------------------|
+| otel.traces.exporter=logging-otlp  | OTEL_TRACES_EXPORTER=logging-otlp  | Select the logging OTLP JSON exporter for tracing  |
+| otel.metrics.exporter=logging-otlp | OTEL_METRICS_EXPORTER=logging-otlp | Select the logging OTLP JSON exporter for metrics  |
+| otel.logs.exporter=logging-otlp    | OTEL_LOGS_EXPORTER=logging-otlp    | Select the logging OTLP JSON exporter for logs     |
+
 ## Propagator
 
 The propagators determine which distributed tracing header formats are used, and which baggage propagation header formats are used.

sdk-extensions/autoconfigure/build.gradle.kts

@@ -17,6 +17,7 @@ dependencies {
 
   compileOnly(project(":exporters:jaeger"))
   compileOnly(project(":exporters:logging"))
+  compileOnly(project(":exporters:logging-otlp"))
   compileOnly(project(":exporters:otlp:all"))
   compileOnly(project(":exporters:otlp:logs"))
   compileOnly(project(":exporters:otlp:common"))

sdk-extensions/autoconfigure/src/main/java/io/opentelemetry/sdk/autoconfigure/LogRecordExporterConfiguration.java

@@ -12,6 +12,7 @@
 import io.opentelemetry.api.metrics.MeterProvider;
 import io.opentelemetry.exporter.internal.retry.RetryUtil;
 import io.opentelemetry.exporter.logging.SystemOutLogRecordExporter;
+import io.opentelemetry.exporter.logging.otlp.OtlpJsonLoggingLogRecordExporter;
 import io.opentelemetry.exporter.otlp.http.logs.OtlpHttpLogRecordExporter;
 import io.opentelemetry.exporter.otlp.http.logs.OtlpHttpLogRecordExporterBuilder;
 import io.opentelemetry.exporter.otlp.logs.OtlpGrpcLogRecordExporter;
@@ -91,6 +92,12 @@ static LogRecordExporter configureExporter(
             "Logging Log Exporter",
             "opentelemetry-exporter-logging");
         return SystemOutLogRecordExporter.create();
+      case "logging-otlp":
+        ClasspathUtil.checkClassExists(
+            "io.opentelemetry.exporter.logging.otlp.OtlpJsonLoggingLogRecordExporter",
+            "OTLP JSON Logging Log Exporter",
+            "opentelemetry-exporter-logging-otlp");
+        return OtlpJsonLoggingLogRecordExporter.create();
       default:
         LogRecordExporter spiExporter = spiExportersManager.getByName(name);
         if (spiExporter == null) {

sdk-extensions/autoconfigure/src/main/java/io/opentelemetry/sdk/autoconfigure/MetricExporterConfiguration.java

@@ -11,6 +11,7 @@
 
 import io.opentelemetry.exporter.internal.retry.RetryUtil;
 import io.opentelemetry.exporter.logging.LoggingMetricExporter;
+import io.opentelemetry.exporter.logging.otlp.OtlpJsonLoggingMetricExporter;
 import io.opentelemetry.exporter.otlp.http.metrics.OtlpHttpMetricExporter;
 import io.opentelemetry.exporter.otlp.http.metrics.OtlpHttpMetricExporterBuilder;
 import io.opentelemetry.exporter.otlp.metrics.OtlpGrpcMetricExporter;
@@ -49,6 +50,9 @@ static MetricReader configureExporter(
       case "logging":
         metricExporter = configureLoggingExporter();
         break;
+      case "logging-otlp":
+        metricExporter = configureLoggingOtlpExporter();
+        break;
       default:
         MetricExporter spiExporter = configureSpiExporter(name, config, serviceClassLoader);
         if (spiExporter == null) {
@@ -69,6 +73,14 @@ private static MetricExporter configureLoggingExporter() {
     return LoggingMetricExporter.create();
   }
 
+  private static MetricExporter configureLoggingOtlpExporter() {
+    ClasspathUtil.checkClassExists(
+        "io.opentelemetry.exporter.logging.otlp.OtlpJsonLoggingMetricExporter",
+        "OTLP JSON Logging Metrics Exporter",
+        "opentelemetry-exporter-logging-otlp");
+    return OtlpJsonLoggingMetricExporter.create();
+  }
+
   // Visible for testing.
   @Nullable
   static MetricExporter configureSpiExporter(

sdk-extensions/autoconfigure/src/main/java/io/opentelemetry/sdk/autoconfigure/SpanExporterConfiguration.java

@@ -15,6 +15,7 @@
 import io.opentelemetry.exporter.jaeger.JaegerGrpcSpanExporter;
 import io.opentelemetry.exporter.jaeger.JaegerGrpcSpanExporterBuilder;
 import io.opentelemetry.exporter.logging.LoggingSpanExporter;
+import io.opentelemetry.exporter.logging.otlp.OtlpJsonLoggingSpanExporter;
 import io.opentelemetry.exporter.otlp.http.trace.OtlpHttpSpanExporter;
 import io.opentelemetry.exporter.otlp.http.trace.OtlpHttpSpanExporterBuilder;
 import io.opentelemetry.exporter.otlp.trace.OtlpGrpcSpanExporter;
@@ -98,6 +99,12 @@ static SpanExporter configureExporter(
             "Logging Trace Exporter",
             "opentelemetry-exporter-logging");
         return LoggingSpanExporter.create();
+      case "logging-otlp":
+        ClasspathUtil.checkClassExists(
+            "io.opentelemetry.exporter.logging.otlp.OtlpJsonLoggingSpanExporter",
+            "OTLP JSON Logging Trace Exporter",
+            "opentelemetry-exporter-logging-otlp");
+        return OtlpJsonLoggingSpanExporter.create();
       default:
         SpanExporter spiExporter = spiExportersManager.getByName(name);
         if (spiExporter == null) {