FacebookBGPPrefixExtraction.java

public static void main(String[] args) throws Exception {
        String prefixes = IOUtils.toString(new URL("https://stat.ripe.net/data/announced-prefixes/data.json?resource=AS32934").openStream());
        ObjectMapper mapper = new ObjectMapper();
        JsonNode root = mapper.readTree(prefixes);
        for (JsonNode prefixNode : root.get("data").get("prefixes")) {
            try {
                String prefix = prefixNode.get("prefix").asText();
                // skip IPv6
                if (!prefix.contains(":")) {
                    String updates = IOUtils.toString(new URL("https://stat.ripe.net/data/bgp-updates/data.json?resource=" + prefix).openStream());
                    JsonNode updateRoot = mapper.readTree(updates);
                    int annoucenments = 0;
                    int withdrawals = 0;
                    for (JsonNode updateNode : updateRoot.get("data").get("updates")) {
                        String type = updateNode.get("type").asText();
                        if (type.equals("A")) {
                            annoucenments++;
                        } else if (type.equals("W")) {
                            withdrawals++;
                        }
                    }
                    System.out.println(prefix + "," + annoucenments + "," + withdrawals);
                }
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }