content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.geode;
  
  import static io.opentelemetry.javaagent.bootstrap.Java8BytecodeBridge.currentContext;
  import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.hasClassesNamed;
  import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.implementsInterface;
  import static io.opentelemetry.javaagent.instrumentation.geode.GeodeSingletons.instrumenter;
  import static net.bytebuddy.matcher.ElementMatchers.isMethod;
  import static net.bytebuddy.matcher.ElementMatchers.nameStartsWith;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.namedOneOf;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  
  import io.opentelemetry.context.Context;
  import io.opentelemetry.context.Scope;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeTransformer;
  import net.bytebuddy.asm.Advice;
  import net.bytebuddy.description.type.TypeDescription;
  import net.bytebuddy.matcher.ElementMatcher;
  import org.apache.geode.cache.Region;
  
  public class GeodeRegionInstrumentation implements TypeInstrumentation {
    @Override
    public ElementMatcher<ClassLoader> classLoaderOptimization() {
      return hasClassesNamed("org.apache.geode.cache.Region");
    }
  
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return implementsInterface(named("org.apache.geode.cache.Region"));
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          isMethod()
              .and(
                  namedOneOf(
                          "clear",
                          "create",
                          "destroy",
                          "entrySet",
                          "get",
                          "getAll",
                          "invalidate",
                          "replace")
                      .or(nameStartsWith("contains"))
                      .or(nameStartsWith("keySet"))
                      .or(nameStartsWith("put"))
                      .or(nameStartsWith("remove"))),
          this.getClass().getName() + "$SimpleAdvice");
      transformer.applyAdviceToMethod(
          isMethod()
              .and(namedOneOf("existsValue", "query", "selectValue"))
              .and(takesArgument(0, String.class)),
          this.getClass().getName() + "$QueryAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class SimpleAdvice {
  
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void onEnter(
          @Advice.This Region<?, ?> region,
          @Advice.Origin("#m") String methodName,
          @Advice.Local("otelRequest") GeodeRequest request,
          @Advice.Local("otelContext") Context context,
          @Advice.Local("otelScope") Scope scope) {
  
        Context parentContext = currentContext();
        request = GeodeRequest.create(region, methodName, null);
        if (!instrumenter().shouldStart(parentContext, request)) {
          return;
        }
  
        context = instrumenter().start(parentContext, request);
        scope = context.makeCurrent();
      }
  
      @Advice.OnMethodExit(onThrowable = Throwable.class, suppress = Throwable.class)
      public static void stopSpan(
          @Advice.Thrown Throwable throwable,
          @Advice.Local("otelRequest") GeodeRequest request,
          @Advice.Local("otelContext") Context context,
          @Advice.Local("otelScope") Scope scope) {
        if (scope == null) {
          return;
        }
  
        scope.close();
        instrumenter().end(context, request, null, throwable);
      }
    }
  
    @SuppressWarnings("unused")
    public static class QueryAdvice {
  
      @Advice.OnMethodEnter(suppress = Throwable.class)
      public static void onEnter(
          @Advice.This Region<?, ?> region,
          @Advice.Origin("#m") String methodName,
          @Advice.Argument(0) String query,
          @Advice.Local("otelRequest") GeodeRequest request,
          @Advice.Local("otelContext") Context context,
          @Advice.Local("otelScope") Scope scope) {
  
        Context parentContext = currentContext();
        request = GeodeRequest.create(region, methodName, query);
        if (!instrumenter().shouldStart(parentContext, request)) {
          return;
        }
  
        context = instrumenter().start(parentContext, request);
        scope = context.makeCurrent();
      }
  
      @Advice.OnMethodExit(onThrowable = Throwable.class, suppress = Throwable.class)
      public static void stopSpan(
          @Advice.Thrown Throwable throwable,
          @Advice.Local("otelRequest") GeodeRequest request,
          @Advice.Local("otelContext") Context context,
          @Advice.Local("otelScope") Scope scope) {
        if (scope == null) {
          return;
        }
  
        scope.close();
        instrumenter().end(context, request, null, throwable);
      }
    }
  }
  