Magic methods to decode Java MQ constants to strings.

I had been struggling with MQ and java, and decoding what the return codes numbers were, and found some well gem methods here.

String reasonCode = MQConstants.lookup(2035, “MQRC_.*”); gave MQRC_NOT_AUTHORIZED

and

String decode = MQConstants.decodeOptions(gmo.options,”MQGMO_.*”); gave me

MQGMO_WAIT | MQGMO_SYNCPOINT_IF_PERSISTENT | MQGMO_FAIL_IF_QUIESCING

I wish I had these a couple of years ago – it would have saved me a lot of time!

The methods are

`static java.lang.String`	`decodeOptions(int optionsP, java.lang.String optionPattern)` This helper method takes an integer representing a set of IBM MQ options for an MQI structure, and converts them into a string displaying the constants that the options represent.
`static int`	`getIntValue(java.lang.String name)` Returns the value of the named MQSeries constant as an int.
`static java.lang.Object`	`getValue(java.lang.String name)` Returns the value of the named MQSeries constant.
`static java.lang.String`	`lookup(int value, java.lang.String filter)` Returns the MQSeries constant name or names for the supplied int value.
`static java.lang.String`	`lookup(java.lang.Object value, java.lang.String filter)` Returns the MQSeries constant name or names for the supplied value of type `Integer`, `String`, `byte[]`, or `char[]`.
`static java.lang.String`	`lookupCompCode(int reason)` Convenience method for finding the constant name for a completion code.
`static java.lang.String`	`lookupReasonCode(int reason)` Convenience method for finding the constant name for a reason code.
`static void`	`main(java.lang.String[] args)`