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Contains the entire NEBA core implementation, i.e. the framework that interprets the NEBA API annotations and provides implementations for the service and lifecycle callback interfaces provided in the NEBA API. This package must not export anything as its implementation details are entirely private.

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package io.neba.core.util;

/**
 * @author Olaf Otto
 */
public class StringUtil {
    /**
     * Appends the given String to the given array of Strings.
     *
     * @param append must not be null.
     * @param appendTo must not be null.
     *
     * @return a new array representing the concatenation.
     */
    public static String[] append(String append, String[] appendTo) {
        if (append == null) {
            throw new IllegalArgumentException("Method argument append must not be null.");
        }
        if (appendTo == null) {
            throw new IllegalArgumentException("Method argument to must not be null.");
        }

        String[] result = new String[appendTo.length];
        for (int i = 0; i  < appendTo.length; ++i) {
            result[i] = appendTo[i] == null ? null : appendTo[i] + append;
        }

        return result;
    }
    private StringUtil() {}
}