PathBuilder.java

/**
 * Copyright (c) Codice Foundation
 * <p>
 * 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 3 of the
 * License, or any later version.
 * <p>
 * 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. A copy of the GNU Lesser General Public License
 * is distributed along with this program and can be found at
 * <http://www.gnu.org/licenses/lgpl.html>.
 */
package org.codice.ddf.platform.util;

import java.nio.file.Path;
import java.nio.file.Paths;

/**
 * Provides path-generation functionality.
 */
public class PathBuilder {
    private final String root;

    private final String[] subElements;

    public PathBuilder(String root) {
        this(root, (String[]) null);
    }

    public PathBuilder(String root, String... subElements) {
        this.root = root;
        this.subElements = subElements;
    }

    public Path build() {
        if (root == null) {
            throw new IllegalArgumentException("Path cannot be constructed with no root element");
        }

        if (subElements != null) {
            return Paths.get(root, subElements);
        } else {
            return Paths.get(root);
        }
    }
}