/*
* Copyright 2002-2006,2009 The Apache Software Foundation.
*
* Licensed 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 com.opensymphony.xwork2.util;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
/**
* @author Dan Oxlade, dan d0t oxlade at gmail d0t c0m
*/
public class ArrayUtils {
public static boolean isEmpty(Object[] array) {
return null == array || array.length == 0;
}
public static boolean isNotEmpty(Object[] array) {
return !isEmpty(array);
}
/**
* Return a collection from the comma delimited String.
*
* @param commaDelim the comma delimited String.
* @return A collection from the comma delimited String. Returns <tt>null</tt> if the string is empty.
*/
public static Collection<String> asCollection(String commaDelim) {
if (commaDelim == null || commaDelim.trim().length() == 0) {
return null;
}
return TextParseUtil.commaDelimitedStringToSet(commaDelim);
}
public static <T> Set<T> asSet(T... element) {
HashSet<T> elements = new HashSet<T>(element.length);
Collections.addAll(elements, element);
return elements;
}
}