org.wildfly.plugin.common.Utils Maven / Gradle / Ivy
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A maven plugin that allows various management operations to be executed on WildFly Application
Server.
/*
* JBoss, Home of Professional Open Source.
* Copyright 2017, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.wildfly.plugin.common;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* A simple utility class.
*
* @author James R. Perkins
*/
public class Utils {
private static final Pattern EMPTY_STRING = Pattern.compile("^$|\\s+");
private static final Pattern WHITESPACE_IF_NOT_QUOTED = Pattern.compile("(\\S+\"[^\"]+\")|\\S+");
public static final String WILDFLY_DEFAULT_DIR = "server";
/**
* Tests if the character sequence is not {@code null} and not empty.
*
* @param seq the character sequence to test
*
* @return {@code true} if the character sequence is not {@code null} and not empty
*/
public static boolean isNotNullOrEmpty(final CharSequence seq) {
return seq != null && !EMPTY_STRING.matcher(seq).matches();
}
/**
* Tests if the arrays is not {@code null} and not empty.
*
* @param array the array to test
*
* @return {@code true} if the array is not {@code null} and not empty
*/
public static boolean isNotNullOrEmpty(final Object[] array) {
return array != null && array.length > 0;
}
/**
* Converts an iterable to a delimited string.
*
* @param iterable the iterable to convert
* @param delimiter the delimiter
*
* @return a delimited string of the iterable
*/
public static String toString(final Iterable> iterable, final CharSequence delimiter) {
final StringBuilder result = new StringBuilder();
final Iterator> iterator = iterable.iterator();
while (iterator.hasNext()) {
result.append(iterator.next());
if (iterator.hasNext()) {
result.append(delimiter);
}
}
return result.toString();
}
/**
* Splits the arguments into a list. The arguments are split based on whitespace while ignoring whitespace that is
* within quotes.
*
* @param arguments the arguments to split
*
* @return the list of the arguments
*/
public static List splitArguments(final CharSequence arguments) {
final List args = new ArrayList<>();
final Matcher m = WHITESPACE_IF_NOT_QUOTED.matcher(arguments);
while (m.find()) {
final String value = m.group();
if (!value.isEmpty()) {
args.add(value);
}
}
return args;
}
}