content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.javaagent.instrumentation.jdbc;
  
  import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.hasClassesNamed;
  import static io.opentelemetry.javaagent.extension.matcher.AgentElementMatchers.implementsInterface;
  import static net.bytebuddy.matcher.ElementMatchers.nameStartsWith;
  import static net.bytebuddy.matcher.ElementMatchers.named;
  import static net.bytebuddy.matcher.ElementMatchers.returns;
  import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
  
  import io.opentelemetry.instrumentation.jdbc.internal.JdbcConnectionUrlParser;
  import io.opentelemetry.instrumentation.jdbc.internal.JdbcData;
  import io.opentelemetry.javaagent.bootstrap.jdbc.DbInfo;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation;
  import io.opentelemetry.javaagent.extension.instrumentation.TypeTransformer;
  import java.sql.Connection;
  import java.util.Properties;
  import net.bytebuddy.asm.Advice;
  import net.bytebuddy.description.type.TypeDescription;
  import net.bytebuddy.matcher.ElementMatcher;
  
  public class DriverInstrumentation implements TypeInstrumentation {
  
    @Override
    public ElementMatcher<ClassLoader> classLoaderOptimization() {
      return hasClassesNamed("java.sql.Driver");
    }
  
    @Override
    public ElementMatcher<TypeDescription> typeMatcher() {
      return implementsInterface(named("java.sql.Driver"));
    }
  
    @Override
    public void transform(TypeTransformer transformer) {
      transformer.applyAdviceToMethod(
          nameStartsWith("connect")
              .and(takesArgument(0, String.class))
              .and(takesArgument(1, Properties.class))
              .and(returns(named("java.sql.Connection"))),
          DriverInstrumentation.class.getName() + "$DriverAdvice");
    }
  
    @SuppressWarnings("unused")
    public static class DriverAdvice {
  
      @Advice.OnMethodExit(suppress = Throwable.class)
      public static void addDbInfo(
          @Advice.Argument(0) String url,
          @Advice.Argument(1) Properties props,
          @Advice.Return Connection connection) {
        if (connection == null) {
          // Exception was probably thrown.
          return;
        }
        DbInfo dbInfo = JdbcConnectionUrlParser.parse(url, props);
        JdbcData.connectionInfo.set(connection, JdbcData.intern(dbInfo));
      }
    }
  }
  