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Support for a virtual sessions, custom command execution etc.

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package com.sshtools.vsession.commands.ssh;

/*-
 * #%L
 * Virtual Sessions
 * %%
 * Copyright (C) 2002 - 2024 JADAPTIVE Limited
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * 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 General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class CommandUtil {
	
	public static boolean isNotEmpty(String str) {
		return str != null && str.trim().length() > 0;
	}
	
	public static boolean isEmpty(String str) {
		return !isNotEmpty(str);
	}
	
	public static boolean isNotEmpty(String[] array) {
		return array != null && array.length > 0;
	}
	
	public static boolean isEmpty(String[] array) {
		return !isNotEmpty(array);
	}

	public static String csv(List strings) {
		return String.join(",", strings.toArray(new String[0]));
	}
	
	public static String[] toStringFromCsvs(String[] strings) {
		List list = new ArrayList();
		for (String string : strings) {
			String[] parts = string.split(",");
			list.addAll(Arrays.asList(parts));
		}
		
		return list.toArray(new String[0]);
	}
}