package kr.co.kihyun.db;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import javax.naming.Context;
import javax.sql.DataSource;

public class DBPoolCmcp {
        //50.public static을 통한 선언 오류(CWE-500) Delete by YOUNGJUN,CHO
	//public static int conCount = 0;
        //------------------------------------------------
	private static DataSource ds = null;
	private static Context ctx;

    ResultSet rs;
    Connection con;
    Statement stmt;
    PreparedStatement pstmt;
    ResultSetMetaData rsmd;
    String url;
    String user;
    String password;

	static {
             try{
                    Class.forName("com.ibm.db2.jcc.DB2Driver").newInstance();
                }catch(ClassNotFoundException ex){
                    ex.printStackTrace();
                }catch(IllegalAccessException ex){
                    ex.printStackTrace();
                }catch(InstantiationException ex){
                    ex.printStackTrace();
                }
	}

	public Connection getConnection() throws SQLException, FileNotFoundException, IOException {

            FileReader in = null;

            try {
                //FileReader in = new FileReader("/edudocs/wasapps/atswas/moumi_cmcp.properties");
                in = new FileReader("/edudocs/wasapps/atswas/moumi_cmcp.properties");

                int c;
                String s = new String();

                while((c=in.read()) != -1){
                    s = s + (char)c;
                    //System.out.println("test1:::::"+s);
                }

                String[] data = s.split(",");
                String[] subData=null;

                String connection1 = data[0];
                String connection2 = data[1];
                String connection3 = data[2];

                //System.out.println("::host1::"+connection1+"\n::host2:"+connection2+"\n:::host3::"+connection3);
                //System.out.println(":::s::::"+s);

                url = connection1;
                user=connection2;
                password = connection3;

                //in.close();

                //v2. 19.부적절한 자원 해제 (Database)_CWE-404 : Comment by YOUNGJUN,CHO
                // 미해결사유 : Connection 을 리턴하는 메서드인데 Connection 을 끊으라고 해결책으로 제시해줘서 해결 안함.
                con = DriverManager.getConnection(url,user,password);
            } catch(IOException ioex) {
                ioex.printStackTrace();
            } catch(SQLException sqlex) {
                sqlex.printStackTrace();
            } finally {
                //v2 21.부적절한 자원 해제 (IO)_CWE-404 : Add by YOUNGJUN,CHO
                // properties 파일을 읽은 후, finally 에서 닫도록 수정함.
                if(in != null) {
                    in.close();
                }
                //++++++++++++++++++++++++++++++++++++++++++++++++
            }

            return con;
	}


	protected void close(Connection con) {
		try {
			if (con != null)
				con.close();
		} catch (SQLException ex) {
                    //31.오류 상황 대응 부재_CWE-390 Add by YOUNGJUN,CHO
                    ex.printStackTrace();
                    //++++++++++++++++++++++++++++++++++++++++++++++++
		}
	}

	protected void close(Statement stmt) {
		try {
			if (stmt != null)
				stmt.close();
		} catch (SQLException ex) {
                    //31.오류 상황 대응 부재_CWE-390 Add by YOUNGJUN,CHO
                    ex.printStackTrace();
                    //++++++++++++++++++++++++++++++++++++++++++++++++
		}
	}

	protected void close(PreparedStatement pstmt) {
		try {
			if (pstmt != null)
				pstmt.close();
		} catch (SQLException ex) {
                //31.오류 상황 대응 부재_CWE-390 Add by YOUNGJUN,CHO
                    ex.printStackTrace();
                    //++++++++++++++++++++++++++++++++++++++++++++++++
		}
	}

	protected void close(ResultSet rs) {
		try {
			if (rs != null)
				rs.close();
		} catch (SQLException ex) {
                    //31.오류 상황 대응 부재_CWE-390 Add by YOUNGJUN,CHO
                    ex.printStackTrace();
                    //++++++++++++++++++++++++++++++++++++++++++++++++
		}
	}
}