From b6aa208c55cc090b5c2695889cb551dc2a98755f Mon Sep 17 00:00:00 2001
From: Nils Schwabe
Date: Fri, 4 Jul 2014 10:54:33 +0200
Subject: Change loading and checking of properties

Remove DbFtpUser
Add NotNullOrEmptyFatal to Utils
---
 .../java/org/openslx/imagemaster/util/Util.java    | 34 +++++++++++++++++++++-
 1 file changed, 33 insertions(+), 1 deletion(-)

(limited to 'src/main/java/org/openslx/imagemaster/util/Util.java')

diff --git a/src/main/java/org/openslx/imagemaster/util/Util.java b/src/main/java/org/openslx/imagemaster/util/Util.java
index fb13c86..9d5c5fb 100644
--- a/src/main/java/org/openslx/imagemaster/util/Util.java
+++ b/src/main/java/org/openslx/imagemaster/util/Util.java
@@ -17,7 +17,7 @@ public class Util
 	 * exit code 2.
 	 * 
 	 * This comes in handy if something must not be null, and you want
-	 * user friendsly output. A perfect example would be reading settings
+	 * 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
@@ -32,6 +32,25 @@ public class Util
 			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
+	 * exit code 2.
+	 * 
+	 * @param something The string you want to check
+	 * @param message The message to be printed if "something" is null or empty
+	 */
+	public static void notNullOrEmptyFatal( String something, String message)
+	{
+		if ( something == null || something.isEmpty() ) {
+			if ( message != null )
+				log.fatal( "[NOTNULL] " + message );
+			log.warn( Thread.currentThread().getStackTrace().toString() );
+			System.exit( 2 );
+		}
+	}
 
 	/**
 	 * Static {@link Random} instance.
@@ -70,5 +89,18 @@ public class Util
 		}
 		folder.delete();
 	}
+
+	/**
+	 * Tries to parse an int. Returns 0 on error.
+	 * @param s The strig to parse
+	 * @return The parsed int or 0 on error
+	 */
+	public static int tryToParseInt(String s) {
+		try {
+			return Integer.parseInt( s );
+		} catch (NumberFormatException e) {
+			return 0;
+		}
+	}
 	
 }
-- 
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