Consultor Eletrônico

Status: Unverified

GOAL:

How to use the value obtained by getErrorCode() method of javax.jms.JMSException class?

FACT(s) (Environment):

SonicMQ

FIX:

Always use the error code by name, not value.

Error code values are internal to the product and can change without any notice. However, its reference by name will never change. Therefore

error == progress.message.jclient.ErrorCodes.ERR_GENERAL_SECURITY_ERR will always work. And error == 10 may not always work.


A Java code that does some error correction should do something like


import progress.message.jclient.ErrorCodes;
.
.
.

// Got the JMS Exception - anException

String jmsErrorCode = anException.getErrorCode();
if (jmsErrorCode != null)
{
try
{
int error = Integer.parseInt(jmsErrorCode);

// now you have the int value of the
// error code, you can do something like

if (error == ERR_GENERAL_SECURITY_ERR)
{
// do your logic here.
// You can also use gswitchh instead of gifh.
}
}

catch (NumberFormatException nfe)

{
// If not a number, it doesn't match.
}
}


What someone should not do is access the variable by its gvalueh instead of is published gnamed referenceh.


Therefore,

if (error == 10)
{
// do your logic here.
}

is not a recommended way of handling the error.



You donft have to write the code mentioned above, Sonic makes things easier for you. Sonic does provide easy of doing error handling. Consider the code below:


import progress.message.jclient.ErrorCodes;
.
.
.

try

{

// do something

}

catch (JMSException anException)

{

if(progress.message.jclient.ErrorCodes.testException(anException, ERR_GENERAL_SECURITY_ERR))

{

// do your logic here.
// You can handle security exception here.
// You can also use gswitchh instead of gifh.

}

}