/*
    * Copyright 2004-2025 the original author or 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
    *
    *    https://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 com.ibatis.common.jdbc.logging;
  
  import com.ibatis.common.beans.ClassInfo;
  import com.ibatis.common.logging.Log;
  import com.ibatis.common.logging.LogFactory;
  
  import java.lang.reflect.InvocationHandler;
  import java.lang.reflect.Method;
  import java.lang.reflect.Proxy;
  import java.sql.Connection;
  import java.sql.PreparedStatement;
  import java.sql.Statement;
  
  /**
   * Connection proxy to add logging.
   */
  public class ConnectionLogProxy extends BaseLogProxy implements InvocationHandler {
  
    /** The Constant log. */
    private static final Log log = LogFactory.getLog(Connection.class);
  
    /** The connection. */
    private Connection connection;
  
    /**
     * Instantiates a new connection log proxy.
     *
     * @param conn
     *          the conn
     */
    private ConnectionLogProxy(Connection conn) {
      super();
      this.connection = conn;
      if (log.isDebugEnabled()) {
        log.debug("{conn-" + id + "} Connection");
      }
    }
  
    @Override
    public Object invoke(Object proxy, Method method, Object[] params) throws Throwable {
      try {
        if ("prepareStatement".equals(method.getName())) {
          if (log.isDebugEnabled()) {
            log.debug("{conn-" + id + "} Preparing Statement: " + removeBreakingWhitespace((String) params[0]));
          }
          PreparedStatement stmt = (PreparedStatement) method.invoke(connection, params);
          return PreparedStatementLogProxy.newInstance(stmt, (String) params[0]);
        }
        if ("prepareCall".equals(method.getName())) {
          if (log.isDebugEnabled()) {
            log.debug("{conn-" + id + "} Preparing Call: " + removeBreakingWhitespace((String) params[0]));
          }
          PreparedStatement stmt = (PreparedStatement) method.invoke(connection, params);
          return PreparedStatementLogProxy.newInstance(stmt, (String) params[0]);
        }
        if ("createStatement".equals(method.getName())) {
          Statement stmt = (Statement) method.invoke(connection, params);
          return StatementLogProxy.newInstance(stmt);
        }
        return method.invoke(connection, params);
      } catch (Throwable t) {
        Throwable t1 = ClassInfo.unwrapThrowable(t);
        log.error("Error calling Connection." + method.getName() + ':', t1);
        throw t1;
      }
  
    }
  
    /**
     * Creates a logging version of a connection.
     *
     * @param conn
     *          - the original connection
     *
     * @return - the connection with logging
     */
    public static Connection newInstance(Connection conn) {
      InvocationHandler handler = new ConnectionLogProxy(conn);
      ClassLoader cl = Connection.class.getClassLoader();
      return (Connection) Proxy.newProxyInstance(cl, new Class[] { Connection.class }, handler);
    }
  
    /**
     * return the wrapped connection.
    *
    * @return the connection
    */
   public Connection getConnection() {
     return connection;
   }
 
 }