diff options
Diffstat (limited to 'src/main/java/org/openslx/imagemaster/util/Util.java')
| -rw-r--r-- | src/main/java/org/openslx/imagemaster/util/Util.java | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/main/java/org/openslx/imagemaster/util/Util.java b/src/main/java/org/openslx/imagemaster/util/Util.java index ca595b5..79589c4 100644 --- a/src/main/java/org/openslx/imagemaster/util/Util.java +++ b/src/main/java/org/openslx/imagemaster/util/Util.java @@ -41,6 +41,28 @@ public class Util } /** + * Check if the given object is null, abort program if true. + * An optional message to be printed can be passed. A stack trace + * will be printed, too. Finally the application terminates with + * exit code 2. + * + * This comes in handy if something must not be null, and you want + * user friendly output. A perfect example would be reading settings + * from a config file. You can use this on mandatory fields. + * + * @param something the object to compare to null + * @param message the message to be printed if something is null + */ + public static void notNullFatal( int number, String message ) + { + if ( number == 0 ) { + if ( message != null ) + log.fatal( "[NOTNULL] " + message, new NullPointerException() ); + System.exit( 2 ); + } + } + + /** * Check if String is null or empty, abort program if so. * An optional message to be printed can be passed. A stack trace * will be printed, too. Finally the application terminates with |