initial commit

so far source analysis is working. =)

1 files changed, 65 insertions, 0 deletions

diff --git a/src/cuchaz/enigma/Util.java b/src/cuchaz/enigma/Util.java
new file mode 100644
index 0000000..c51eb62
--- /dev/null
+++ b/src/cuchaz/enigma/Util.java
@@ -0,0 +1,65 @@
+/*******************************************************************************
+ * Copyright (c) 2014 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Public License v3.0
+ * which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/gpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.util.jar.JarFile;
+
+
+public class Util
+{
+        public static int combineHashesOrdered( Object ... objs )
+        {
+                final int prime = 67;
+                int result = 1;
+                for( Object obj : objs )
+                {
+                        result *= prime;
+                        if( obj != null )
+                        {
+                                result += obj.hashCode();
+                        }
+                }
+                return result;
+        }
+        
+        public static void closeQuietly( Closeable closeable )
+        {
+                if( closeable != null )
+                {
+                        try
+                        {
+                                closeable.close();
+                        }
+                        catch( IOException ex )
+                        {
+                                // just ignore any further exceptions
+                        }
+                }
+        }
+        
+        public static void closeQuietly( JarFile jarFile )
+        {
+                // silly library should implement Closeable...
+                if( jarFile != null )
+                {
+                        try
+                        {
+                                jarFile.close();
+                        }
+                        catch( IOException ex )
+                        {
+                                // just ignore any further exceptions
+                        }
+                }
+        }
+}