Wire pretty_print to declarative config and fix Windows test

Add pretty_print field to ComponentProvider classes so it can be
set via declarative YAML configuration. Fix line separator handling
in StreamJsonWriterTest for Windows.

Author: lucacavenaghi97

exporters/logging-otlp/src/main/java/io/opentelemetry/exporter/logging/otlp/internal/logs/OtlpStdoutLogRecordExporterComponentProvider.java

@@ -32,6 +32,10 @@ public String getName() {
   public LogRecordExporter create(DeclarativeConfigProperties config) {
     OtlpStdoutLogRecordExporterBuilder builder = OtlpStdoutLogRecordExporter.builder();
     IncubatingExporterBuilderUtil.configureExporterMemoryMode(config, builder::setMemoryMode);
+    Boolean prettyPrint = config.getBoolean("pretty_print");
+    if (prettyPrint != null) {
+      builder.setPrettyPrint(prettyPrint);
+    }
     return builder.build();
   }
 }

exporters/logging-otlp/src/main/java/io/opentelemetry/exporter/logging/otlp/internal/metrics/OtlpStdoutMetricExporterComponentProvider.java

@@ -36,6 +36,10 @@ public MetricExporter create(DeclarativeConfigProperties config) {
         config, builder::setAggregationTemporalitySelector);
     IncubatingExporterBuilderUtil.configureOtlpHistogramDefaultAggregation(
         config, builder::setDefaultAggregationSelector);
+    Boolean prettyPrint = config.getBoolean("pretty_print");
+    if (prettyPrint != null) {
+      builder.setPrettyPrint(prettyPrint);
+    }
     return builder.build();
   }
 }

exporters/logging-otlp/src/main/java/io/opentelemetry/exporter/logging/otlp/internal/traces/OtlpStdoutSpanExporterComponentProvider.java

@@ -32,6 +32,10 @@ public String getName() {
   public SpanExporter create(DeclarativeConfigProperties config) {
     OtlpStdoutSpanExporterBuilder builder = OtlpStdoutSpanExporter.builder();
     IncubatingExporterBuilderUtil.configureExporterMemoryMode(config, builder::setMemoryMode);
+    Boolean prettyPrint = config.getBoolean("pretty_print");
+    if (prettyPrint != null) {
+      builder.setPrettyPrint(prettyPrint);
+    }
     return builder.build();
   }
 }

exporters/logging-otlp/src/test/java/io/opentelemetry/exporter/logging/otlp/AbstractOtlpStdoutExporterTest.java

@@ -367,6 +367,13 @@ void componentProviderConfig() {
     assertThat(exporterFromComponentProvider(properties))
         .extracting("memoryMode")
         .isEqualTo(MemoryMode.REUSABLE_DATA);
+
+    DeclarativeConfigProperties prettyPrintProperties = spy(DeclarativeConfigProperties.empty());
+    when(prettyPrintProperties.getBoolean("pretty_print")).thenReturn(true);
+    assertThat(exporterFromComponentProvider(prettyPrintProperties))
+        .extracting("jsonWriter")
+        .extracting("prettyPrint")
+        .isEqualTo(true);
   }
 
   @SuppressWarnings("unchecked")

exporters/logging-otlp/src/test/java/io/opentelemetry/exporter/logging/otlp/internal/writer/StreamJsonWriterTest.java

@@ -44,7 +44,7 @@ void write_prettyPrintEnabled() throws IOException {
 
     assertThat(
             new String(baos.toByteArray(), StandardCharsets.UTF_8)
-                .replace("\n", System.lineSeparator()))
+                .replace("\r\n", "\n"))
         .isEqualTo("{\n  \"key\" : \"value\"\n}\n");
   }