java-classic-code/java-simple-dspool/JdbcConnectionWrapper.java

package org.apache.kyuubi.engine.jdbc.session;

import org.apache.commons.dbcp2.DelegatingConnection;

import java.sql.Connection;
import java.sql.SQLException;
import java.util.Objects;

/**
 * JDBC 包装类
 * <pre>
 *
 * Created by zhenqin.
 * User: zhenqin
 * Date: 2026/2/11
 * Time: 10:18
 * Vendor: yiidata.com
 *
 * </pre>
 *
 * @author zhenqin
 */
public class JdbcConnectionWrapper extends DelegatingConnection<Connection> implements JdbcConnection {

    /**
     * MySQL 等数据库支持的 connection Id
     */
    private String connectionId;

    /**
     * 强制关闭，并且废弃的连接
     */
    private boolean validFlag = true;

    /**
     * 直接的连接
     */
    final Connection realConnection;

    /**
     * 代理的连接和直接的连接
     * @param connection
     * @param realConnection
     */
    public JdbcConnectionWrapper(Connection connection, Connection realConnection) {
        super(connection);
        this.realConnection = realConnection;
    }

    public String getConnectionId() {
        return connectionId;
    }

    public void setConnectionId(String connectionId) {
        this.connectionId = connectionId;
    }

    public boolean isValidFlag() {
        return validFlag;
    }

    public void setValidFlag(boolean validFlag) {
        this.validFlag = validFlag;
    }

    @Override
    public void directClose() {
        try {
            realConnection.close();
        } catch (Exception ignore) {}
    }

    @Override
    public void close() throws SQLException {
        directClose();
        super.close();
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        JdbcConnectionWrapper that = (JdbcConnectionWrapper) o;
        return Objects.equals(getDelegate(), that.getDelegate());
    }

    @Override
    public int hashCode() {
        return Objects.hash(getDelegate());
    }
}