Method match

src/main/java/net/freeutils/httpserver/HTTPServer.java:2836–2843

Matches the given ETag value against the given ETags. A match is found if the given ETag is not null, and either the ETags contain a " " value, or one of them is identical to the given ETag. If strong comparison is used, tags beginning with the weak ETag prefix "W/" never match. See RFC2616#3.11, RF

(boolean strong, String[] etags, String etag)

     * @return true if the ETag is matched, false otherwise
     */
    public static boolean match(boolean strong, String[] etags, String etag) {
        if (etag == null || strong && etag.startsWith("W/"))
            return false;
        for (String e : etags)
            if (e.equals("*") || (e.equals(etag) && !(strong && (e.startsWith("W/")))))
                return true;
        return false;
    }

    /**
     * Calculates the appropriate response status for the given request and