Add file configuration ComponentProvider support for propagators

extensions/trace-propagators/src/main/java/io/opentelemetry/extension/trace/propagation/internal/B3ComponentProvider.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.extension.trace.propagation.internal;
+
+import io.opentelemetry.context.propagation.TextMapPropagator;
+import io.opentelemetry.extension.trace.propagation.B3Propagator;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.StructuredConfigProperties;
+
+/**
+ * File configuration SPI implementation for {@link B3Propagator} which allows enables the {@link
+ * B3Propagator#injectingSingleHeader()}.
+ *
+ * <p>This class is internal and is hence not for public use. Its APIs are unstable and can change
+ * at any time.
+ */
+public final class B3ComponentProvider implements ComponentProvider<TextMapPropagator> {
+
+  @Override
+  public Class<TextMapPropagator> getType() {
+    return TextMapPropagator.class;
+  }
+
+  @Override
+  public String getName() {
+    return "b3";
+  }
+
+  @Override
+  public TextMapPropagator create(StructuredConfigProperties config) {
+    return B3Propagator.injectingSingleHeader();
+  }
+}

extensions/trace-propagators/src/main/java/io/opentelemetry/extension/trace/propagation/internal/B3MultiComponentProvider.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.extension.trace.propagation.internal;
+
+import io.opentelemetry.context.propagation.TextMapPropagator;
+import io.opentelemetry.extension.trace.propagation.B3Propagator;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.StructuredConfigProperties;
+
+/**
+ * File configuration SPI implementation for {@link B3Propagator} which allows enables the {@link
+ * B3Propagator#injectingMultiHeaders()}.
+ *
+ * <p>This class is internal and is hence not for public use. Its APIs are unstable and can change
+ * at any time.
+ */
+public final class B3MultiComponentProvider implements ComponentProvider<TextMapPropagator> {
+
+  @Override
+  public Class<TextMapPropagator> getType() {
+    return TextMapPropagator.class;
+  }
+
+  @Override
+  public String getName() {
+    return "b3multi";
+  }
+
+  @Override
+  public TextMapPropagator create(StructuredConfigProperties config) {
+    return B3Propagator.injectingMultiHeaders();
+  }
+}

extensions/trace-propagators/src/main/java/io/opentelemetry/extension/trace/propagation/internal/JaegerComponentProvider.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.extension.trace.propagation.internal;
+
+import io.opentelemetry.context.propagation.TextMapPropagator;
+import io.opentelemetry.extension.trace.propagation.JaegerPropagator;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.StructuredConfigProperties;
+
+/**
+ * File configuration SPI implementation for {@link JaegerPropagator}.
+ *
+ * <p>This class is internal and is hence not for public use. Its APIs are unstable and can change
+ * at any time.
+ */
+public final class JaegerComponentProvider implements ComponentProvider<TextMapPropagator> {
+
+  @Override
+  public Class<TextMapPropagator> getType() {
+    return TextMapPropagator.class;
+  }
+
+  @Override
+  public String getName() {
+    return "jaeger";
+  }
+
+  @Override
+  public TextMapPropagator create(StructuredConfigProperties config) {
+    return JaegerPropagator.getInstance();
+  }
+}

extensions/trace-propagators/src/main/java/io/opentelemetry/extension/trace/propagation/internal/OtTraceComponentProvider.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.extension.trace.propagation.internal;
+
+import io.opentelemetry.context.propagation.TextMapPropagator;
+import io.opentelemetry.extension.trace.propagation.B3Propagator;
+import io.opentelemetry.extension.trace.propagation.OtTracePropagator;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.StructuredConfigProperties;
+
+/**
+ * File configuration SPI implementation for {@link B3Propagator}.
+ *
+ * <p>This class is internal and is hence not for public use. Its APIs are unstable and can change
+ * at any time.
+ */
+public final class OtTraceComponentProvider implements ComponentProvider<TextMapPropagator> {
+
+  @Override
+  public Class<TextMapPropagator> getType() {
+    return TextMapPropagator.class;
+  }
+
+  @Override
+  public String getName() {
+    return "ottrace";
+  }
+
+  @Override
+  public TextMapPropagator create(StructuredConfigProperties config) {
+    return OtTracePropagator.getInstance();
+  }
+}

extensions/trace-propagators/src/main/resources/META-INF/services/io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider

@@ -0,0 +1,4 @@
+io.opentelemetry.extension.trace.propagation.internal.B3ComponentProvider
+io.opentelemetry.extension.trace.propagation.internal.B3MultiComponentProvider
+io.opentelemetry.extension.trace.propagation.internal.JaegerComponentProvider
+io.opentelemetry.extension.trace.propagation.internal.OtTraceComponentProvider

sdk-extensions/incubator/src/main/java/io/opentelemetry/sdk/extension/incubator/fileconfig/TextMapPropagatorFactory.java

@@ -8,17 +8,13 @@
 import io.opentelemetry.api.baggage.propagation.W3CBaggagePropagator;
 import io.opentelemetry.api.trace.propagation.W3CTraceContextPropagator;
 import io.opentelemetry.context.propagation.TextMapPropagator;
-import io.opentelemetry.sdk.autoconfigure.internal.NamedSpiManager;
 import io.opentelemetry.sdk.autoconfigure.internal.SpiHelper;
-import io.opentelemetry.sdk.autoconfigure.spi.ConfigurablePropagatorProvider;
 import io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException;
-import io.opentelemetry.sdk.autoconfigure.spi.internal.DefaultConfigProperties;
 import java.io.Closeable;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
-import java.util.LinkedHashSet;
 import java.util.List;
-import java.util.Set;
 
 final class TextMapPropagatorFactory implements Factory<List<String>, TextMapPropagator> {
 
@@ -45,33 +41,23 @@ public TextMapPropagator create(
       return TextMapPropagator.noop();
     }
 
-    NamedSpiManager<TextMapPropagator> spiPropagatorsManager =
-        spiHelper.loadConfigurable(
-            ConfigurablePropagatorProvider.class,
-            ConfigurablePropagatorProvider::getName,
-            ConfigurablePropagatorProvider::getPropagator,
-            DefaultConfigProperties.createFromMap(Collections.emptyMap()));
-    Set<TextMapPropagator> propagators = new LinkedHashSet<>();
+    List<TextMapPropagator> propagators = new ArrayList<>();
     for (String propagator : model) {
-      propagators.add(getPropagator(propagator, spiPropagatorsManager));
+      propagators.add(getPropagator(spiHelper, propagator));
     }
 
     return TextMapPropagator.composite(propagators);
   }
 
-  private static TextMapPropagator getPropagator(
-      String name, NamedSpiManager<TextMapPropagator> spiPropagatorsManager) {
+  private static TextMapPropagator getPropagator(SpiHelper spiHelper, String name) {
     if (name.equals("tracecontext")) {
       return W3CTraceContextPropagator.getInstance();
     }
     if (name.equals("baggage")) {
       return W3CBaggagePropagator.getInstance();
     }
 
-    TextMapPropagator spiPropagator = spiPropagatorsManager.getByName(name);
-    if (spiPropagator != null) {
-      return spiPropagator;
-    }
-    throw new ConfigurationException("Unrecognized propagator: " + name);
+    return FileConfigUtil.loadComponent(
+        spiHelper, TextMapPropagator.class, name, Collections.emptyMap());
   }
 }

sdk-extensions/incubator/src/test/java/io/opentelemetry/sdk/extension/incubator/fileconfig/FileConfigurationCreateTest.java

@@ -86,7 +86,10 @@ void parseAndCreate_Examples(@TempDir Path tempDir)
                   "client_key: .*\n", "client_key: " + clientKeyPath + System.lineSeparator())
               .replaceAll(
                   "client_certificate: .*\n",
-                  "client_certificate: " + clientCertificatePath + System.lineSeparator());
+                  "client_certificate: " + clientCertificatePath + System.lineSeparator())
+              // TODO: remove once ComponentProvider SPI implemented in
+              // https://github.com/open-telemetry/opentelemetry-java-contrib/tree/main/aws-xray-propagator
+              .replaceAll("xray,", "");
       InputStream is =
           new ByteArrayInputStream(rewrittenExampleContent.getBytes(StandardCharsets.UTF_8));
 

sdk-extensions/incubator/src/test/java/io/opentelemetry/sdk/extension/incubator/fileconfig/TextMapPropagatorFactoryTest.java

@@ -16,6 +16,8 @@
 import io.opentelemetry.extension.trace.propagation.OtTracePropagator;
 import io.opentelemetry.sdk.autoconfigure.internal.SpiHelper;
 import io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException;
+import io.opentelemetry.sdk.extension.incubator.fileconfig.component.TextMapPropagatorComponentProvider;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
@@ -68,12 +70,28 @@ void create_NoneAndOther() {
   }
 
   @Test
-  void create_UnknownSpiPropagator() {
+  void create_SpiPropagator_Unknown() {
     assertThatThrownBy(
             () ->
                 TextMapPropagatorFactory.getInstance()
                     .create(Collections.singletonList("foo"), spiHelper, Collections.emptyList()))
         .isInstanceOf(ConfigurationException.class)
-        .hasMessage("Unrecognized propagator: foo");
+        .hasMessage(
+            "No component provider detected for io.opentelemetry.context.propagation.TextMapPropagator with name \"foo\".");
+  }
+
+  @Test
+  void create_SpiPropagator_Valid() {
+    TextMapPropagator textMapPropagator =
+        TextMapPropagatorFactory.getInstance()
+            .create(Collections.singletonList("test"), spiHelper, new ArrayList<>());
+    assertThat(textMapPropagator)
+        .isInstanceOfSatisfying(
+            TextMapPropagatorComponentProvider.TestTextMapPropagator.class,
+            testTextMapPropagator ->
+                assertThat(testTextMapPropagator.config)
+                    .isInstanceOfSatisfying(
+                        YamlStructuredConfigProperties.class,
+                        config -> assertThat(config.getPropertyKeys()).isEmpty()));
   }
 }

sdk-extensions/incubator/src/test/java/io/opentelemetry/sdk/extension/incubator/fileconfig/component/TextMapPropagatorComponentProvider.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.sdk.extension.incubator.fileconfig.component;
+
+import io.opentelemetry.context.Context;
+import io.opentelemetry.context.propagation.TextMapGetter;
+import io.opentelemetry.context.propagation.TextMapPropagator;
+import io.opentelemetry.context.propagation.TextMapSetter;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider;
+import io.opentelemetry.sdk.autoconfigure.spi.internal.StructuredConfigProperties;
+import java.util.Collection;
+import java.util.Collections;
+import javax.annotation.Nullable;
+
+public class TextMapPropagatorComponentProvider implements ComponentProvider<TextMapPropagator> {
+  @Override
+  public Class<TextMapPropagator> getType() {
+    return TextMapPropagator.class;
+  }
+
+  @Override
+  public String getName() {
+    return "test";
+  }
+
+  @Override
+  public TextMapPropagator create(StructuredConfigProperties config) {
+    return new TestTextMapPropagator(config);
+  }
+
+  public static class TestTextMapPropagator implements TextMapPropagator {
+
+    public final StructuredConfigProperties config;
+
+    private TestTextMapPropagator(StructuredConfigProperties config) {
+      this.config = config;
+    }
+
+    @Override
+    public Collection<String> fields() {
+      return Collections.emptyList();
+    }
+
+    @Override
+    public <C> void inject(Context context, @Nullable C carrier, TextMapSetter<C> setter) {}
+
+    @Override
+    public <C> Context extract(Context context, @Nullable C carrier, TextMapGetter<C> getter) {
+      return context;
+    }
+  }
+}

sdk-extensions/incubator/src/test/resources/META-INF/services/io.opentelemetry.sdk.autoconfigure.spi.internal.ComponentProvider

@@ -1,6 +1,7 @@
 io.opentelemetry.sdk.extension.incubator.fileconfig.component.MetricExporterComponentProvider
 io.opentelemetry.sdk.extension.incubator.fileconfig.component.SpanExporterComponentProvider
 io.opentelemetry.sdk.extension.incubator.fileconfig.component.LogRecordExporterComponentProvider
+io.opentelemetry.sdk.extension.incubator.fileconfig.component.TextMapPropagatorComponentProvider
 io.opentelemetry.sdk.extension.incubator.fileconfig.component.SamplerComponentProvider
 io.opentelemetry.sdk.extension.incubator.fileconfig.component.SpanProcessorComponentProvider
 io.opentelemetry.sdk.extension.incubator.fileconfig.component.LogRecordProcessorComponentProvider