/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE197_Numeric_Truncation_Error__int_database_to_byte_05.java
Label Definition File: CWE197_Numeric_Truncation_Error__int.label.xml
Template File: sources-sink-05.tmpl.java
*/
/*
* @description
* CWE: 197 Numeric Truncation Error
* BadSource: database Read data from a database
* GoodSource: A hardcoded non-zero, non-min, non-max, even number
* BadSink: to_byte Convert data to a byte
* Flow Variant: 05 Control flow: if(privateTrue) and if(privateFalse)
*
* */




import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import java.util.logging.Level;

public class CWE197_Numeric_Truncation_Error__int_database_to_byte_05 extends AbstractTestCase
{
    /* The two variables below are not defined as "final", but are never
     * assigned any other value, so a tool should be able to identify that
     * reads of these will always return their initialized values.
     */
    private boolean privateTrue = true;
    private boolean privateFalse = false;

    /* uses badsource and badsink */
    public void bad() throws Throwable
    {
        int data;
        if (privateTrue)
        {
            data = Integer.MIN_VALUE; /* Initialize data */
            /* Read data from a database */
            {
                Connection connection = null;
                PreparedStatement preparedStatement = null;
                ResultSet resultSet = null;
                try
                {
                    /* setup the connection */
                    connection = IO.getDBConnection();
                    /* prepare and execute a (hardcoded) query */
                    preparedStatement = connection.prepareStatement("select name from users where id=0");
                    resultSet = preparedStatement.executeQuery();
                    /* POTENTIAL FLAW: Read data from a database query resultset */
                    String stringNumber = resultSet.getString(1);
                    if (stringNumber != null) /* avoid NPD incidental warnings */
                    {
                        try
                        {
                            data = Integer.parseInt(stringNumber.trim());
                        }
                        catch (NumberFormatException exceptNumberFormat)
                        {
                            IO.logger.log(Level.WARNING, "Number format exception parsing data from string", exceptNumberFormat);
                        }
                    }
                }
                catch (SQLException exceptSql)
                {
                    IO.logger.log(Level.WARNING, "Error with SQL statement", exceptSql);
                }
                finally
                {
                    /* Close database objects */
                    try
                    {
                        if (resultSet != null)
                        {
                            resultSet.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing ResultSet", exceptSql);
                    }

                    try
                    {
                        if (preparedStatement != null)
                        {
                            preparedStatement.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing PreparedStatement", exceptSql);
                    }

                    try
                    {
                        if (connection != null)
                        {
                            connection.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing Connection", exceptSql);
                    }
                }
            }
        }
        else
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure data is inititialized before the Sink to avoid compiler errors */
            data = 0;
        }

        {
            /* POTENTIAL FLAW: Convert data to a byte, possibly causing a truncation error */
            IO.writeLine((byte)data);
        }

    }

    /* goodG2B1() - use goodsource and badsink by changing privateTrue to privateFalse */
    private void goodG2B1() throws Throwable
    {
        int data;
        if (privateFalse)
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure data is inititialized before the Sink to avoid compiler errors */
            data = 0;
        }
        else
        {

            /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */
            data = 2;

        }

        {
            /* POTENTIAL FLAW: Convert data to a byte, possibly causing a truncation error */
            IO.writeLine((byte)data);
        }

    }

    /* goodG2B2() - use goodsource and badsink by reversing statements in if */
    private void goodG2B2() throws Throwable
    {
        int data;
        if (privateTrue)
        {
            /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */
            data = 2;
        }
        else
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure data is inititialized before the Sink to avoid compiler errors */
            data = 0;
        }

        {
            /* POTENTIAL FLAW: Convert data to a byte, possibly causing a truncation error */
            IO.writeLine((byte)data);
        }

    }

    public void good() throws Throwable
    {
        goodG2B1();
        goodG2B2();
    }

    /* Below is the main(). It is only used when building this testcase on
     * its own for testing or for building a binary to use in testing binary
     * analysis tools. It is not used when compiling all the testcases as one
     * application, which is how source code analysis tools are tested.
     */
    public static void main(String[] args) throws ClassNotFoundException,
           InstantiationException, IllegalAccessException
    {
        mainFromParent(args);
    }
}
