public static void writePrefixes(IndentedWriter out, PrefixMap prefixMap) { if (prefixMap != null && !prefixMap.isEmpty()) { for (Map.Entry<String, String> e : prefixMap.getMappingCopyStr().entrySet()) { out.print("@prefix "); out.print(e.getKey()); out.print(": "); out.pad(PREFIX_IRI); out.print("<"); out.print(e.getValue()); out.print(">"); out.print(" ."); out.println(); } } }