Util.java
/**
* Portions of this software was developed by employees of the National Institute
* of Standards and Technology (NIST), an agency of the Federal Government and is
* being made available as a public service. Pursuant to title 17 United States
* Code Section 105, works of NIST employees are not subject to copyright
* protection in the United States. This software may be subject to foreign
* copyright. Permission in the United States and in foreign countries, to the
* extent that NIST may hold copyright, to use, copy, modify, create derivative
* works, and distribute this software and its documentation without fee is hereby
* granted on a non-exclusive basis, provided that this notice and disclaimer
* of warranty appears in all copies.
*
* THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
* EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
* THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
* INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
* SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT
* SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
* INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
* OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
* CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
* PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
* OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
*/
package gov.nist.secauto.swid.builder.util;
/**
* Portions of this software was developed by employees of the National Institute
* of Standards and Technology (NIST), an agency of the Federal Government.
* Pursuant to title 17 United States Code Section 105, works of NIST employees are
* not subject to copyright protection in the United States and are considered to
* be in the public domain. Permission to freely use, copy, modify, and distribute
* this software and its documentation without fee is hereby granted, provided that
* this notice and disclaimer of warranty appears in all copies.
*
* THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
* EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
* THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
* INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
* SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT
* SHALL NASA BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
* INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM, OR
* IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
* CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
* PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
* OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
*/
import java.util.regex.Pattern;
public class Util {
private Util() {
// disable construction
}
/**
* Checks that the provided string is not empty.
*
* @param str
* the string to check
* @return the same string
* @throws NullPointerException
* if the provided string is <code>null</code>
* @throws IllegalArgumentException
* if the provided string is empty
*/
public static String requireNonEmpty(String str) {
if (str.isEmpty()) {
throw new IllegalArgumentException();
}
return str;
}
/**
* Checks that the provided string is not empty.
*
* @param str
* the string to check
* @param message
* the exception message to use
* @return the same string
* @throws NullPointerException
* if the provided string is <code>null</code>
* @throws IllegalArgumentException
* if the provided string is empty
*/
public static String requireNonEmpty(String str, String message) {
if (str.isEmpty()) {
throw new IllegalArgumentException(message);
}
return str;
}
/**
* Checks that the provided string is not empty.
*
* @param array
* the array to check
* @return the same array
* @throws NullPointerException
* if the provided array is <code>null</code>
* @throws IllegalArgumentException
* if the provided array is zero length
*/
public static Object[] requireNonEmpty(Object[] array) {
if (array.length == 0) {
throw new IllegalArgumentException();
}
return array;
}
/**
* Checks that the provided string is not empty.
*
* @param array
* the array to check
* @param message
* the exception message to use
* @return the same array
* @throws NullPointerException
* if the provided array is <code>null</code>
* @throws IllegalArgumentException
* if the provided string is zero length
*/
public static Object[] requireNonEmpty(Object[] array, String message) {
if (array.length == 0) {
throw new IllegalArgumentException(message);
}
return array;
}
/**
* Checks that the provided string matches the provided pattern.
*
* @param pattern
* the pattern to match against
* @param str
* the string to check
* @param message
* the exception message to use
* @throws NullPointerException
* if the provided string is <code>null</code>
* @throws IllegalArgumentException
* if the provided string is empty or if the string doesn't match the pattern
*/
public static void requirePatternMatch(Pattern pattern, String str, String message) {
requireNonEmpty(str);
if (!pattern.matcher(str).matches()) {
throw new IllegalArgumentException(message);
}
}
}