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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright 2005-2014 Red Hat, Inc.
 * Red Hat 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.hornetq.utils;

import org.hornetq.api.core.HornetQBuffer;

/**
 * @author Clebert Suconic
 */

public class ByteUtil
{

   protected static final char[] hexArray = "0123456789ABCDEF".toCharArray();

   public static String maxString(String value, int size)
   {
      if (value.length() < size)
      {
         return value;
      }
      else
      {
         return value.substring(0, size / 2) + " ... " + value.substring(value.length() - size / 2);
      }
   }

   public static String bytesToHex(HornetQBuffer buffer, int groupSize)
   {
      int read = buffer.readerIndex();
      buffer.readerIndex(0);
      byte[] bufferRead = new byte[buffer.writerIndex()];
      buffer.readBytes(bufferRead);
      buffer.readerIndex(read);
      return bytesToHex(bufferRead, groupSize);
   }

   public static String bytesToHex(byte[] bytes, int groupSize)
   {
      char[] hexChars = new char[bytes.length * 2 + numberOfGroups(bytes, groupSize)];
      int outPos = 0;
      for (int j = 0; j < bytes.length; j++)
      {
         if (j > 0 && j % groupSize == 0)
         {
            hexChars[outPos++] = ' ';
         }
         int v = bytes[j] & 0xFF;
         hexChars[outPos++] = hexArray[v >>> 4];
         hexChars[outPos++] = hexArray[v & 0x0F];
      }
      return new String(hexChars);
   }

   private static int numberOfGroups(byte[] bytes, int groupSize)
   {
      int groups = bytes.length / groupSize;

      if (bytes.length % groupSize == 0)
      {
         groups--;
      }

      return groups;
   }


}