blob: 01554655749bb5b7f6023f08e17779e628373f55 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/**
* Copyright (c) 2004 - 2011 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.net4j.util;
/**
* @author Eike Stepper
*/
public final class CheckUtil
{
private CheckUtil()
{
}
public static void checkNull(Object handle, String msg) throws NullPointerException
{
if (handle == null)
{
throw new NullPointerException(msg);
}
}
public static void checkArg(boolean expr, String msg) throws IllegalArgumentException
{
if (!expr)
{
throw new IllegalArgumentException(msg);
}
}
public static void checkArg(Object handle, String handleName) throws IllegalArgumentException
{
if (handle == null)
{
throw new IllegalArgumentException(handleName + " is null"); //$NON-NLS-1$
}
}
public static void checkState(boolean expr, String msg) throws IllegalStateException
{
if (!expr)
{
throw new IllegalStateException(msg);
}
}
public static void checkState(Object handle, String handleName) throws IllegalStateException
{
if (handle == null)
{
throw new IllegalStateException(handleName + " is null"); //$NON-NLS-1$
}
}
}
|