1 files changed, 91 insertions, 0 deletions
diff --git a/java/common/src/main/java/org/apache/qpid/transport/util/Functions.java b/java/common/src/main/java/org/apache/qpid/transport/util/Functions.java
new file mode 100644
index 0000000000..2c6984e302
--- /dev/null
+++ b/java/common/src/main/java/org/apache/qpid/transport/util/Functions.java
@@ -0,0 +1,91 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+package org.apache.qpid.transport.util;
+
+import java.nio.ByteBuffer;
+
+import static java.lang.Math.*;
+
+
+/**
+ * Functions
+ *
+ * @author Rafael H. Schloming
+ */
+
+public class Functions
+{
+
+    public static final byte lsb(int i)
+    {
+        return (byte) (0xFF & i);
+    }
+
+    public static final byte lsb(long l)
+    {
+        return (byte) (0xFF & l);
+    }
+
+    public static final String str(ByteBuffer buf)
+    {
+        return str(buf, buf.remaining());
+    }
+
+    public static final String str(ByteBuffer buf, int limit)
+    {
+        StringBuilder str = new StringBuilder();
+        str.append('"');
+
+        for (int i = 0; i < min(buf.remaining(), limit); i++)
+        {
+            byte c = buf.get(buf.position() + i);
+
+            if (c > 31 && c < 127 && c != '\\')
+            {
+                str.append((char)c);
+            }
+            else
+            {
+                str.append(String.format("\\x%02x", c));
+            }
+        }
+
+        str.append('"');
+
+        if (limit < buf.remaining())
+        {
+            str.append("...");
+        }
+
+        return str.toString();
+    }
+
+    public static final String str(byte[] bytes)
+    {
+        return str(ByteBuffer.wrap(bytes));
+    }
+
+    public static final String str(byte[] bytes, int limit)
+    {
+        return str(ByteBuffer.wrap(bytes), limit);
+    }
+
+}