Remove TracerProvider mutators (#2503)

sdk/trace/src/main/java/io/opentelemetry/sdk/trace/SdkTracerManagement.java

@@ -8,11 +8,8 @@ package io.opentelemetry.sdk.trace;
 import io.opentelemetry.api.trace.Tracer;
 import io.opentelemetry.sdk.common.CompletableResultCode;
 import io.opentelemetry.sdk.trace.config.TraceConfig;
-import io.opentelemetry.sdk.trace.config.TraceConfigBuilder;
-import io.opentelemetry.sdk.trace.export.SpanExporter;
 import java.io.Closeable;
 import java.util.concurrent.TimeUnit;
-import java.util.function.Supplier;
 
 /**
  * "Management" interface for the Tracing SDK. This interface exposes methods for configuring the
@@ -27,36 +24,6 @@ public interface SdkTracerManagement extends Closeable {
    */
   TraceConfig getActiveTraceConfig();
 
-  /**
-   * Updates the active {@link TraceConfig}.
-   *
-   * <p>Note: To update the {@link TraceConfig} associated with this instance you should use the
-   * {@link TraceConfig#toBuilder()} method on the {@link TraceConfig} returned from {@link
-   * #getActiveTraceConfig()}, make the changes desired to the {@link TraceConfigBuilder} instance,
-   * then use this method with the resulting {@link TraceConfig} instance.
-   *
-   * @param traceConfig the new active {@code TraceConfig}.
-   * @see TraceConfig
-   * @deprecated Use {@link SdkTracerProviderBuilder#setTraceConfig(Supplier)} to register a
-   *     supplier of {@link TraceConfig} if you need to make dynamic updates.
-   */
-  @Deprecated
-  void updateActiveTraceConfig(TraceConfig traceConfig);
-
-  /**
-   * Adds a new {@code SpanProcessor} to this {@code Tracer}.
-   *
-   * <p>Any registered processor cause overhead, consider to use an async/batch processor especially
-   * for span exporting, and export to multiple backends using the {@link
-   * io.opentelemetry.sdk.trace.export.SpanExporter#composite(SpanExporter...)}.
-   *
-   * @param spanProcessor the new {@code SpanProcessor} to be added.
-   * @deprecated Use {@link SdkTracerProvider#addSpanProcessor(SpanProcessor)} when initializing the
-   *     SDK
-   */
-  @Deprecated
-  void addSpanProcessor(SpanProcessor spanProcessor);
-
   /**
    * Attempts to stop all the activity for this {@link Tracer}. Calls {@link
    * SpanProcessor#shutdown()} for all registered {@link SpanProcessor}s.

sdk/trace/src/main/java/io/opentelemetry/sdk/trace/SdkTracerProvider.java

@@ -74,18 +74,6 @@ public final class SdkTracerProvider implements TracerProvider, SdkTracerManagem
     return sharedState.getActiveTraceConfig();
   }
 
-  @Override
-  @Deprecated
-  public void updateActiveTraceConfig(TraceConfig traceConfig) {
-    sharedState.updateActiveTraceConfig(traceConfig);
-  }
-
-  @Override
-  @Deprecated
-  public void addSpanProcessor(SpanProcessor spanProcessor) {
-    sharedState.addSpanProcessor(spanProcessor);
-  }
-
   @Override
   public CompletableResultCode shutdown() {
     if (sharedState.isStopped()) {

sdk/trace/src/main/java/io/opentelemetry/sdk/trace/TracerSharedState.java

@@ -9,7 +9,6 @@ import io.opentelemetry.sdk.common.Clock;
 import io.opentelemetry.sdk.common.CompletableResultCode;
 import io.opentelemetry.sdk.resources.Resource;
 import io.opentelemetry.sdk.trace.config.TraceConfig;
-import java.util.ArrayList;
 import java.util.List;
 import java.util.function.Supplier;
 import javax.annotation.Nullable;
@@ -22,18 +21,13 @@ final class TracerSharedState {
   private final IdGenerator idGenerator;
   private final Resource resource;
 
-  // Reads and writes are atomic for reference variables. Use volatile to ensure that these
-  // operations are visible on other CPUs as well.
-  private volatile Supplier<TraceConfig> traceConfigSupplier;
-  private volatile SpanProcessor activeSpanProcessor;
+  private final Supplier<TraceConfig> traceConfigSupplier;
+  private final SpanProcessor activeSpanProcessor;
 
   @GuardedBy("lock")
   @Nullable
   private volatile CompletableResultCode shutdownResult = null;
 
-  @GuardedBy("lock")
-  private final List<SpanProcessor> registeredSpanProcessors;
-
   TracerSharedState(
       Clock clock,
       IdGenerator idGenerator,
@@ -44,8 +38,7 @@ final class TracerSharedState {
     this.idGenerator = idGenerator;
     this.resource = resource;
     this.traceConfigSupplier = traceConfigSupplier;
-    this.registeredSpanProcessors = new ArrayList<>(spanProcessors);
-    activeSpanProcessor = SpanProcessor.composite(registeredSpanProcessors);
+    activeSpanProcessor = SpanProcessor.composite(spanProcessors);
   }
 
   Clock getClock() {
@@ -69,15 +62,6 @@ final class TracerSharedState {
     return traceConfigSupplier.get();
   }
 
-  /**
-   * Updates the active {@link TraceConfig}.
-   *
-   * @param traceConfig the new active {@code TraceConfig}.
-   */
-  void updateActiveTraceConfig(TraceConfig traceConfig) {
-    traceConfigSupplier = () -> traceConfig;
-  }
-
   /**
    * Returns the active {@code SpanProcessor}.
    *
@@ -87,18 +71,6 @@ final class TracerSharedState {
     return activeSpanProcessor;
   }
 
-  /**
-   * Adds a new {@code SpanProcessor}.
-   *
-   * @param spanProcessor the new {@code SpanProcessor} to be added.
-   */
-  void addSpanProcessor(SpanProcessor spanProcessor) {
-    synchronized (lock) {
-      registeredSpanProcessors.add(spanProcessor);
-      activeSpanProcessor = SpanProcessor.composite(registeredSpanProcessors);
-    }
-  }
-
   /**
    * Returns {@code true} if tracing is stopped.
    *

sdk/trace/src/test/java/io/opentelemetry/sdk/trace/SdkTracerProviderTest.java

@@ -17,7 +17,6 @@ import io.opentelemetry.sdk.common.CompletableResultCode;
 import io.opentelemetry.sdk.common.InstrumentationLibraryInfo;
 import io.opentelemetry.sdk.resources.Resource;
 import io.opentelemetry.sdk.trace.config.TraceConfig;
-import io.opentelemetry.sdk.trace.samplers.Sampler;
 import java.util.function.Supplier;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -114,15 +113,6 @@ class SdkTracerProviderTest {
     assertThat(((SdkTracer) tracer).getInstrumentationLibraryInfo()).isEqualTo(expected);
   }
 
-  @Test
-  @SuppressWarnings("deprecation") // Testing the deprecated method
-  void updateActiveTraceConfig() {
-    assertThat(tracerFactory.getActiveTraceConfig()).isEqualTo(TraceConfig.getDefault());
-    TraceConfig newConfig = TraceConfig.builder().setSampler(Sampler.alwaysOff()).build();
-    tracerFactory.updateActiveTraceConfig(newConfig);
-    assertThat(tracerFactory.getActiveTraceConfig()).isEqualTo(newConfig);
-  }
-
   @Test
   void build_traceConfig() {
     TraceConfig initialTraceConfig = mock(TraceConfig.class);