X-Git-Url: http://g0dil.de/git?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fj32%2Futil%2FUtil.java;fp=src%2Fmain%2Fjava%2Fde%2Fj32%2Futil%2FUtil.java;h=cd4efb8a5e20fcf32383806e3fcb6f7da630e6a0;hb=4c31953ffe274db62393de67740de5df70b06d33;hp=0000000000000000000000000000000000000000;hpb=5ac05364dc652686046f01849b810da6ffef1192;p=jpim.git

diff --git a/src/main/java/de/j32/util/Util.java b/src/main/java/de/j32/util/Util.java
new file mode 100644
index 0000000..cd4efb8
--- /dev/null
+++ b/src/main/java/de/j32/util/Util.java
@@ -0,0 +1,50 @@
+package de.j32.util;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.Iterator;
+
+public class Util
+{
+
+    public static <E> E nonnull(E ob)
+    {
+        if (ob == null) throw new NullPointerException();
+        return ob;
+    }
+
+    public static void transfer(InputStream is, OutputStream os)
+            throws IOException
+    {
+        byte[] buffer = new byte[16384];
+        int len = -1;
+        while ((len = is.read(buffer)) != -1)
+            os.write(buffer, 0, len);
+    }
+
+    public static void nothrowClose(Closeable c)
+    {
+        if (c != null) {
+            try {
+                c.close();
+            }
+            catch (IOException e) {}
+        }
+    }
+
+    public static <E> E first(Iterable<E> i)
+    {
+        Iterator<E> it = i.iterator();
+        if (it.hasNext()) return it.next();
+        return null;
+    }
+
+    public static <E> E first(Iterator<E> it)
+    {
+        if (it.hasNext()) return it.next();
+        return null;
+    }
+
+}