Files.java

package com.github.dreamhead.moco.util;

import java.io.File;

import static com.google.common.base.Preconditions.checkNotNull;

public final class Files {
    public static String join(final String path1, final String path2, final String... paths) {
        String finalPath = actualJoin(path1, path2);
        for (String path : paths) {
            finalPath = actualJoin(finalPath, path);
        }

        return finalPath;
    }

    private static String actualJoin(final String path1, final String path2) {
        return joinedFile(path1, path2).getPath();
    }

    private static File joinedFile(final String path1, final String path2) {
        checkNotNull(path2);

        if (path1 == null) {
            return new File(path2);
        }

        return new File(new File(path1), path2);
    }

    private Files() {
    }
}