Coverage Report - com.allanbank.mongodb.bson.io.EndianUtils
 
Classes in this File Line Coverage Branch Coverage Complexity
EndianUtils
66%
2/3
N/A
1
 
 1  
 /*
 2  
  * #%L
 3  
  * EndianUtils.java - mongodb-async-driver - Allanbank Consulting, Inc.
 4  
  * %%
 5  
  * Copyright (C) 2011 - 2014 Allanbank Consulting, Inc.
 6  
  * %%
 7  
  * Licensed under the Apache License, Version 2.0 (the "License");
 8  
  * you may not use this file except in compliance with the License.
 9  
  * You may obtain a copy of the License at
 10  
  * 
 11  
  *      http://www.apache.org/licenses/LICENSE-2.0
 12  
  * 
 13  
  * Unless required by applicable law or agreed to in writing, software
 14  
  * distributed under the License is distributed on an "AS IS" BASIS,
 15  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 16  
  * See the License for the specific language governing permissions and
 17  
  * limitations under the License.
 18  
  * #L%
 19  
  */
 20  
 package com.allanbank.mongodb.bson.io;
 21  
 
 22  
 /**
 23  
  * Utilities to deal with integer endian differences.
 24  
  * 
 25  
  * @api.no This class is <b>NOT</b> part of the drivers API. This class may be
 26  
  *         mutated in incompatible ways between any two releases of the driver.
 27  
  * @copyright 2011-2013, Allanbank Consulting, Inc., All Rights Reserved
 28  
  */
 29  0
 public final class EndianUtils {
 30  
     /**
 31  
      * Performs a byte-order swap for a 32-bit signed integer.
 32  
      * 
 33  
      * @param value
 34  
      *            The value to swap.
 35  
      * @return The swapped value.
 36  
      */
 37  
     public static int swap(final int value) {
 38  577
         return (((value << 24) & 0xFF000000) | ((value << 8) & 0x00FF0000)
 39  
                 | ((value >> 8) & 0x0000FF00) | ((value >> 24) & 0x000000FF));
 40  
     }
 41  
 
 42  
     /**
 43  
      * Performs a byte-order swap for a 64-bit signed integer.
 44  
      * 
 45  
      * @param value
 46  
      *            The value to swap.
 47  
      * @return The swapped value.
 48  
      */
 49  
     public static long swap(final long value) {
 50  340
         return (((value << 56) & 0xFF00000000000000L)
 51  
                 | ((value << 40) & 0x00FF000000000000L)
 52  
                 | ((value << 24) & 0x0000FF0000000000L)
 53  
                 | ((value << 8) & 0x000000FF00000000L)
 54  
                 | ((value >> 8) & 0x00000000FF000000L)
 55  
                 | ((value >> 24) & 0x0000000000FF0000L)
 56  
                 | ((value >> 40) & 0x000000000000FF00L) | ((value >> 56) & 0x00000000000000FFL));
 57  
     }
 58  
 
 59  
 }