content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  // Includes work from:
  /*
   * Copyright 2017-2021 The OpenTracing Authors
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   * in compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License
   * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
   * or implied. See the License for the specific language governing permissions and limitations under
   * the License.
   */
  
  package io.opentelemetry.instrumentation.jdbc.internal;
  
  import io.opentelemetry.context.Context;
  import io.opentelemetry.context.Scope;
  import io.opentelemetry.instrumentation.api.instrumenter.Instrumenter;
  import io.opentelemetry.instrumentation.jdbc.internal.dbinfo.DbInfo;
  import java.sql.Array;
  import java.sql.Blob;
  import java.sql.CallableStatement;
  import java.sql.Clob;
  import java.sql.Connection;
  import java.sql.DatabaseMetaData;
  import java.sql.NClob;
  import java.sql.PreparedStatement;
  import java.sql.SQLClientInfoException;
  import java.sql.SQLException;
  import java.sql.SQLWarning;
  import java.sql.SQLXML;
  import java.sql.Savepoint;
  import java.sql.ShardingKey;
  import java.sql.Statement;
  import java.sql.Struct;
  import java.util.Map;
  import java.util.Properties;
  import java.util.concurrent.Executor;
  
  /**
   * This class is internal and is hence not for public use. Its APIs are unstable and can change at
   * any time.
   */
  public class OpenTelemetryConnection implements Connection {
  
    private static final boolean hasJdbc43 = hasJdbc43();
    protected final Connection delegate;
    private final DbInfo dbInfo;
    protected final Instrumenter<DbRequest, Void> statementInstrumenter;
    protected final Instrumenter<DbRequest, Void> transactionInstrumenter;
    private final boolean captureQueryParameters;
  
    protected OpenTelemetryConnection(
        Connection delegate,
        DbInfo dbInfo,
        Instrumenter<DbRequest, Void> statementInstrumenter,
        Instrumenter<DbRequest, Void> transactionInstrumenter,
        boolean captureQueryParameters) {
      this.delegate = delegate;
      this.dbInfo = dbInfo;
      this.statementInstrumenter = statementInstrumenter;
      this.transactionInstrumenter = transactionInstrumenter;
      this.captureQueryParameters = captureQueryParameters;
    }
  
    // visible for testing
    static boolean hasJdbc43() {
      try {
        Class.forName("java.sql.ShardingKey");
        return true;
      } catch (ClassNotFoundException exception) {
        return false;
      }
    }
  
    public static Connection create(
        Connection delegate,
        DbInfo dbInfo,
        Instrumenter<DbRequest, Void> statementInstrumenter,
        Instrumenter<DbRequest, Void> transactionInstrumenter,
        boolean captureQueryParameters) {
      if (hasJdbc43) {
        return new OpenTelemetryConnectionJdbc43(
            delegate, dbInfo, statementInstrumenter, transactionInstrumenter, captureQueryParameters);
      }
      return new OpenTelemetryConnection(
          delegate, dbInfo, statementInstrumenter, transactionInstrumenter, captureQueryParameters);
    }
  
    @Override
    public Statement createStatement() throws SQLException {
      Statement statement = delegate.createStatement();
      return new OpenTelemetryStatement<>(statement, this, dbInfo, statementInstrumenter);
    }
  
    @Override
    public Statement createStatement(int resultSetType, int resultSetConcurrency)
        throws SQLException {
      Statement statement = delegate.createStatement(resultSetType, resultSetConcurrency);
      return new OpenTelemetryStatement<>(statement, this, dbInfo, statementInstrumenter);
    }
  
    @Override
    public Statement createStatement(
        int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {
      Statement statement =
          delegate.createStatement(resultSetType, resultSetConcurrency, resultSetHoldability);
      return new OpenTelemetryStatement<>(statement, this, dbInfo, statementInstrumenter);
    }
  
    @Override
    public PreparedStatement prepareStatement(String sql) throws SQLException {
      PreparedStatement statement = delegate.prepareStatement(sql);
      return new OpenTelemetryPreparedStatement<>(
          statement, this, dbInfo, sql, statementInstrumenter, captureQueryParameters);
    }
  
    @Override
    public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency)
        throws SQLException {
      PreparedStatement statement =
          delegate.prepareStatement(sql, resultSetType, resultSetConcurrency);
      return new OpenTelemetryPreparedStatement<>(
          statement, this, dbInfo, sql, statementInstrumenter, captureQueryParameters);
    }
  
    @Override
    public PreparedStatement prepareStatement(
        String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
        throws SQLException {
      PreparedStatement statement =
          delegate.prepareStatement(sql, resultSetType, resultSetConcurrency, resultSetHoldability);
      return new OpenTelemetryPreparedStatement<>(
          statement, this, dbInfo, sql, statementInstrumenter, captureQueryParameters);
    }
  
    @Override
    public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException {
      PreparedStatement statement = delegate.prepareStatement(sql, autoGeneratedKeys);
      return new OpenTelemetryPreparedStatement<>(
          statement, this, dbInfo, sql, statementInstrumenter, captureQueryParameters);
    }
  
    @Override
    public PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException {
      PreparedStatement statement = delegate.prepareStatement(sql, columnIndexes);
      return new OpenTelemetryPreparedStatement<>(
          statement, this, dbInfo, sql, statementInstrumenter, captureQueryParameters);
    }
  
    @Override
    public PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException {
      PreparedStatement statement = delegate.prepareStatement(sql, columnNames);
      return new OpenTelemetryPreparedStatement<>(
          statement, this, dbInfo, sql, statementInstrumenter, captureQueryParameters);
    }
  
    @Override
    public CallableStatement prepareCall(String sql) throws SQLException {
      CallableStatement statement = delegate.prepareCall(sql);
      return new OpenTelemetryCallableStatement<>(
          statement, this, dbInfo, sql, statementInstrumenter, captureQueryParameters);
    }
  
    @Override
    public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency)
        throws SQLException {
      CallableStatement statement = delegate.prepareCall(sql, resultSetType, resultSetConcurrency);
      return new OpenTelemetryCallableStatement<>(
          statement, this, dbInfo, sql, statementInstrumenter, captureQueryParameters);
    }
  
    @Override
    public CallableStatement prepareCall(
        String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
        throws SQLException {
      CallableStatement statement =
          delegate.prepareCall(sql, resultSetType, resultSetConcurrency, resultSetHoldability);
      return new OpenTelemetryCallableStatement<>(
          statement, this, dbInfo, sql, statementInstrumenter, captureQueryParameters);
    }
  
    @Override
    public void commit() throws SQLException {
      wrapCall(delegate::commit, "COMMIT");
    }
  
    @Override
    public void close() throws SQLException {
      delegate.close();
    }
  
    @Override
    public String nativeSQL(String sql) throws SQLException {
      return delegate.nativeSQL(sql);
    }
  
    @Override
    public boolean getAutoCommit() throws SQLException {
      return delegate.getAutoCommit();
    }
  
    @Override
    public void setAutoCommit(boolean autoCommit) throws SQLException {
      delegate.setAutoCommit(autoCommit);
    }
  
    @Override
    public boolean isClosed() throws SQLException {
      return delegate.isClosed();
    }
  
    @Override
    public DatabaseMetaData getMetaData() throws SQLException {
      return delegate.getMetaData();
    }
  
    @Override
    public boolean isReadOnly() throws SQLException {
      return delegate.isReadOnly();
    }
  
    @Override
    public void setReadOnly(boolean readOnly) throws SQLException {
      delegate.setReadOnly(readOnly);
    }
  
    @Override
    public String getCatalog() throws SQLException {
      return delegate.getCatalog();
    }
  
    @Override
    public void setCatalog(String catalog) throws SQLException {
      delegate.setCatalog(catalog);
    }
  
    @Override
    public int getTransactionIsolation() throws SQLException {
      return delegate.getTransactionIsolation();
    }
  
    @Override
    public void setTransactionIsolation(int level) throws SQLException {
      delegate.setTransactionIsolation(level);
    }
  
    @Override
    public SQLWarning getWarnings() throws SQLException {
      return delegate.getWarnings();
    }
  
    @Override
    public void clearWarnings() throws SQLException {
      delegate.clearWarnings();
    }
  
    @Override
    public Map<String, Class<?>> getTypeMap() throws SQLException {
      return delegate.getTypeMap();
    }
  
    @Override
    public void setTypeMap(Map<String, Class<?>> map) throws SQLException {
      delegate.setTypeMap(map);
    }
  
    @Override
    public int getHoldability() throws SQLException {
      return delegate.getHoldability();
    }
  
    @Override
    public void setHoldability(int holdability) throws SQLException {
      delegate.setHoldability(holdability);
    }
  
    @Override
    public Savepoint setSavepoint() throws SQLException {
      return delegate.setSavepoint();
    }
  
    @Override
    public Savepoint setSavepoint(String name) throws SQLException {
      return delegate.setSavepoint(name);
    }
  
    @SuppressWarnings("UngroupedOverloads")
    @Override
    public void rollback() throws SQLException {
      wrapCall(delegate::rollback, "ROLLBACK");
    }
  
    @SuppressWarnings("UngroupedOverloads")
    @Override
    public void rollback(Savepoint savepoint) throws SQLException {
      wrapCall(() -> delegate.rollback(savepoint), "ROLLBACK");
    }
  
    @Override
    public void releaseSavepoint(Savepoint savepoint) throws SQLException {
      delegate.releaseSavepoint(savepoint);
    }
  
    @Override
    public Clob createClob() throws SQLException {
      return delegate.createClob();
    }
  
    @Override
    public Blob createBlob() throws SQLException {
      return delegate.createBlob();
    }
  
    @Override
    public NClob createNClob() throws SQLException {
      return delegate.createNClob();
    }
  
    @Override
    public SQLXML createSQLXML() throws SQLException {
      return delegate.createSQLXML();
    }
  
    @Override
    public boolean isValid(int timeout) throws SQLException {
      return delegate.isValid(timeout);
    }
  
    @SuppressWarnings("UngroupedOverloads")
    @Override
    public void setClientInfo(String name, String value) throws SQLClientInfoException {
      delegate.setClientInfo(name, value);
    }
  
    @SuppressWarnings("UngroupedOverloads")
    @Override
    public void setClientInfo(Properties properties) throws SQLClientInfoException {
      delegate.setClientInfo(properties);
    }
  
    @Override
    public String getClientInfo(String name) throws SQLException {
      return delegate.getClientInfo(name);
    }
  
    @Override
    public Properties getClientInfo() throws SQLException {
      return delegate.getClientInfo();
    }
  
    @Override
    public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
      return delegate.createArrayOf(typeName, elements);
    }
  
    @Override
    public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
      return delegate.createStruct(typeName, attributes);
    }
  
    @Override
    public String getSchema() throws SQLException {
      return delegate.getSchema();
    }
  
    @Override
    public void setSchema(String schema) throws SQLException {
      delegate.setSchema(schema);
    }
  
    @Override
    public void abort(Executor executor) throws SQLException {
      delegate.abort(executor);
    }
  
    @Override
    public void setNetworkTimeout(Executor executor, int milliseconds) throws SQLException {
      delegate.setNetworkTimeout(executor, milliseconds);
    }
  
    @Override
    public int getNetworkTimeout() throws SQLException {
      return delegate.getNetworkTimeout();
    }
  
    @Override
    public <T> T unwrap(Class<T> iface) throws SQLException {
      return delegate.unwrap(iface);
    }
  
    @Override
    public boolean isWrapperFor(Class<?> iface) throws SQLException {
      return delegate.isWrapperFor(iface);
    }
  
    // visible for testing
    public DbInfo getDbInfo() {
      return dbInfo;
    }
  
    // JDBC 4.3
    static class OpenTelemetryConnectionJdbc43 extends OpenTelemetryConnection {
      OpenTelemetryConnectionJdbc43(
          Connection delegate,
          DbInfo dbInfo,
          Instrumenter<DbRequest, Void> statementInstrumenter,
          Instrumenter<DbRequest, Void> transactionInstrumenter,
          boolean captureQueryParameters) {
        super(
            delegate, dbInfo, statementInstrumenter, transactionInstrumenter, captureQueryParameters);
      }
  
      @SuppressWarnings("Since15")
      @Override
      public void beginRequest() throws SQLException {
        delegate.beginRequest();
      }
  
      @SuppressWarnings("Since15")
      @Override
      public void endRequest() throws SQLException {
        delegate.endRequest();
      }
  
      @SuppressWarnings("Since15")
      @Override
      public boolean setShardingKeyIfValid(
          ShardingKey shardingKey, ShardingKey superShardingKey, int timeout) throws SQLException {
        return delegate.setShardingKeyIfValid(shardingKey, superShardingKey, timeout);
      }
  
      @SuppressWarnings("Since15")
      @Override
      public boolean setShardingKeyIfValid(ShardingKey shardingKey, int timeout) throws SQLException {
        return delegate.setShardingKeyIfValid(shardingKey, timeout);
      }
  
      @SuppressWarnings("Since15")
      @Override
      public void setShardingKey(ShardingKey shardingKey, ShardingKey superShardingKey)
          throws SQLException {
        delegate.setShardingKey(shardingKey, superShardingKey);
      }
  
      @SuppressWarnings("Since15")
      @Override
      public void setShardingKey(ShardingKey shardingKey) throws SQLException {
        delegate.setShardingKey(shardingKey);
      }
    }
  
    protected <E extends Exception> void wrapCall(ThrowingSupplier<E> callable, String operation)
        throws E {
      Context parentContext = Context.current();
      DbRequest request = DbRequest.createTransaction(dbInfo, operation);
      if (!this.transactionInstrumenter.shouldStart(parentContext, request)) {
        callable.call();
        return;
      }
  
      Context context = this.transactionInstrumenter.start(parentContext, request);
      try (Scope ignored = context.makeCurrent()) {
        callable.call();
      } catch (Throwable t) {
        this.transactionInstrumenter.end(context, request, null, t);
        throw t;
      }
      this.transactionInstrumenter.end(context, request, null, null);
    }
  
    protected interface ThrowingSupplier<E extends Exception> {
      void call() throws E;
    }
  }
  