ArraysUtils.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 org.apache.deltaspike.core.util;

import javax.enterprise.inject.Typed;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * A collection of utilities for working with Arrays
 */
@Typed()
public abstract class ArraysUtils
{
    private ArraysUtils()
    {
        // prevent instantiation
    }

    /**
     * Create a set from an array. If the array contains duplicate objects, the
     * last object in the array will be placed in resultant set.
     *
     * @param <T>   the type of the objects in the set
     * @param array the array from which to create the set
     * @return the created sets
     */
    public static <T> Set<T> asSet(T... array)
    {
        Set<T> result = new HashSet<T>();
        Collections.addAll(result, array);
        return result;
    }

    public static boolean isEmpty(Object[] array)
    {
        return array == null || array.length == 0;
    }
}