declarative config: map common-enabled (#14589)

Co-authored-by: otelbot <197425009+otelbot@users.noreply.github.com>

javaagent-tooling/src/main/java/io/opentelemetry/javaagent/tooling/OpenTelemetryInstaller.java

@@ -5,7 +5,10 @@
 
 package io.opentelemetry.javaagent.tooling;
 
+import static io.opentelemetry.api.incubator.config.DeclarativeConfigProperties.empty;
+
 import io.opentelemetry.api.incubator.config.ConfigProvider;
+import io.opentelemetry.api.incubator.config.DeclarativeConfigProperties;
 import io.opentelemetry.instrumentation.config.bridge.DeclarativeConfigPropertiesBridgeBuilder;
 import io.opentelemetry.javaagent.bootstrap.OpenTelemetrySdkAccess;
 import io.opentelemetry.javaagent.tooling.config.EarlyInitAgentConfig;
@@ -13,6 +16,8 @@ import io.opentelemetry.sdk.OpenTelemetrySdk;
 import io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdk;
 import io.opentelemetry.sdk.autoconfigure.SdkAutoconfigureAccess;
 import io.opentelemetry.sdk.autoconfigure.internal.AutoConfigureUtil;
+import io.opentelemetry.sdk.autoconfigure.spi.ConfigProperties;
+import io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException;
 import io.opentelemetry.sdk.common.CompletableResultCode;
 import java.util.Arrays;
 
@@ -44,22 +49,49 @@ public final class OpenTelemetryInstaller {
       return SdkAutoconfigureAccess.create(
           sdk,
           SdkAutoconfigureAccess.getResource(autoConfiguredSdk),
-          new DeclarativeConfigPropertiesBridgeBuilder()
-              .addMapping("otel.javaagent", "agent")
-              // these properties are used to initialize the SDK before the configuration file
-              // is loaded for consistency, we pass them to the bridge, so that they can be read
-              // later with the same value from the {@link DeclarativeConfigPropertiesBridge}
-              .addOverride(
-                  "otel.javaagent.debug", earlyConfig.getBoolean("otel.javaagent.debug", false))
-              .addOverride(
-                  "otel.javaagent.logging", earlyConfig.getString("otel.javaagent.logging"))
-              .buildFromInstrumentationConfig(configProvider.getInstrumentationConfig()),
+          getDeclarativeConfigBridgedProperties(earlyConfig, configProvider),
           configProvider);
     }
 
     return autoConfiguredSdk;
   }
 
+  // Visible for testing
+  static ConfigProperties getDeclarativeConfigBridgedProperties(
+      EarlyInitAgentConfig earlyConfig, ConfigProvider configProvider) {
+    return new DeclarativeConfigPropertiesBridgeBuilder()
+        .addMapping("otel.javaagent", "agent")
+        .addOverride("otel.instrumentation.common.default-enabled", defaultEnabled(configProvider))
+        // these properties are used to initialize the SDK before the configuration file
+        // is loaded for consistency, we pass them to the bridge, so that they can be read
+        // later with the same value from the {@link DeclarativeConfigPropertiesBridge}
+        .addOverride("otel.javaagent.debug", earlyConfig.getBoolean("otel.javaagent.debug", false))
+        .addOverride("otel.javaagent.logging", earlyConfig.getString("otel.javaagent.logging"))
+        .buildFromInstrumentationConfig(configProvider.getInstrumentationConfig());
+  }
+
+  private static boolean defaultEnabled(ConfigProvider configProvider) {
+    DeclarativeConfigProperties instrumentationConfig = configProvider.getInstrumentationConfig();
+    if (instrumentationConfig == null) {
+      return true;
+    }
+
+    String profile =
+        instrumentationConfig
+            .getStructured("java", empty())
+            .getStructured("agent", empty())
+            .getString("instrumentation_mode", "default");
+
+    switch (profile) {
+      case "none":
+        return false;
+      case "default":
+        return true;
+      default:
+        throw new ConfigurationException("Unknown instrumentation profile: " + profile);
+    }
+  }
+
   private static void setForceFlush(OpenTelemetrySdk sdk) {
     OpenTelemetrySdkAccess.internalSetForceFlush(
         (timeout, unit) -> {

javaagent-tooling/src/test/java/io/opentelemetry/javaagent/tooling/OpenTelemetryInstallerTest.java

@@ -6,14 +6,24 @@
 package io.opentelemetry.javaagent.tooling;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatCode;
 
 import io.opentelemetry.api.GlobalOpenTelemetry;
 import io.opentelemetry.api.OpenTelemetry;
 import io.opentelemetry.javaagent.tooling.config.EarlyInitAgentConfig;
 import io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdk;
+import io.opentelemetry.sdk.autoconfigure.spi.ConfigProperties;
+import io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException;
+import io.opentelemetry.sdk.extension.incubator.fileconfig.DeclarativeConfiguration;
+import io.opentelemetry.sdk.extension.incubator.fileconfig.SdkConfigProvider;
+import java.io.ByteArrayInputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.function.Supplier;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
 
 class OpenTelemetryInstallerTest {
 
@@ -31,4 +41,43 @@ class OpenTelemetryInstallerTest {
 
     assertThat(sdk).isNotNull().isNotEqualTo(OpenTelemetry.noop());
   }
+
+  @ParameterizedTest
+  @CsvSource({
+    "default, true, false",
+    "none, false, false",
+    ", true, false", // empty value means property is not set
+    "invalid, false, true",
+  })
+  void defaultEnabledInDeclarativeConfigPropertiesBridge(
+      String propertyValue, boolean expected, boolean fail) {
+    String profile = propertyValue == null ? "" : "instrumentation_mode: \"" + propertyValue + "\"";
+    String yaml =
+        "file_format: \"1.0-rc.1\"\n"
+            + "instrumentation/development:\n"
+            + "  java:\n"
+            + "    agent:\n"
+            + "      "
+            + profile;
+
+    Supplier<ConfigProperties> configPropertiesSupplier =
+        () ->
+            OpenTelemetryInstaller.getDeclarativeConfigBridgedProperties(
+                EarlyInitAgentConfig.create(),
+                SdkConfigProvider.create(
+                    DeclarativeConfiguration.parse(
+                        new ByteArrayInputStream(yaml.getBytes(StandardCharsets.UTF_8)))));
+
+    if (fail) {
+      assertThatCode(() -> configPropertiesSupplier.get())
+          .isInstanceOf(ConfigurationException.class)
+          .hasMessage("Unknown instrumentation profile: invalid");
+    } else {
+      assertThat(
+              configPropertiesSupplier
+                  .get()
+                  .getBoolean("otel.instrumentation.common.default-enabled"))
+          .isEqualTo(expected);
+    }
+  }
 }