private static AttributeMap readMetaFile(final Path metaFile) throws IOException {
        final AttributeMap attributeMap = new AttributeMap();
        if (Files.exists(metaFile)) {
            AttributeMapUtil.read(metaFile, attributeMap);
        }
        return attributeMap;
    }
Pkg private to ease testing. splitDirConsumer also there to aid testing.
stroom-proxy/stroom-proxy-app/src/main/java/stroom/proxy/app/handler/ZipSplitter.java