Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Lightmare, Lightweight embedded EJB container (works for stateless session beans) with JPA / Hibernate support
 *
 * Copyright (c) 2013, Levan Tsinadze, or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */

import java.util.ArrayList;

import java.util.Collection;
import java.util.Collections;

import java.util.List;
import java.util.Map;

public class Main {
    public static final int EMPTY_ARRAY_LENGTH = 0;

    /**
     * Creates new {@link List} from passed {@link Collection} instance
     * 
     * @param collection
     * @return {@link List} translated from collection
     */
    public static <T> List<T> translateToList(Collection<T> collection) {

        List<T> list;

        if (valid(collection)) {
            list = new ArrayList<T>(collection);
        } else {
            list = Collections.emptyList();
        }

        return list;
    }

    /**
     * Checks passed {@link Collection} instance on null and on emptiness
     * returns true if it is not null and is not empty
     * 
     * @param collection
     * @return <code></code>
     */
    public static boolean valid(Collection<?> collection) {
        return (collection != null && !collection.isEmpty());
    }

    /**
     * Checks passed {@link Map} instance on null and emptiness returns true if
     * it is not null and is not empty
     * 
     * @param map
     * @return <code>boolean</code>
     */
    public static boolean valid(Map<?, ?> map) {
        return (map != null && !map.isEmpty());
    }

    /**
     * Checks if passed array of {@link Object}'s instances is not null and is
     * not empty
     * 
     * @param array
     * @return <code>boolean</code>
     */
    public static boolean valid(Object[] array) {
        return (array != null && array.length > EMPTY_ARRAY_LENGTH);
    }
}