1 package org.apache.directmemory.memory;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.util.Random;
23
24 public class MemoryTestUtils
25 {
26
27 private static final String PAYLOAD_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
28
29 private static final Random R = new Random();
30
31 public static byte[] generateRandomPayload( int sizeInByte )
32 {
33 final StringBuilder sb = new StringBuilder( sizeInByte );
34 for ( int i = 0; i < sizeInByte; i++ )
35 {
36 sb.append( PAYLOAD_CHARS.charAt( R.nextInt( PAYLOAD_CHARS.length() ) ) );
37 }
38 return sb.toString().getBytes();
39 }
40
41 }