(Java) RDAP Domain Lookup using rdap.org

Demonstrates doing an RDAP domain lookup using the rdap.org public RDAP server.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttp http = new CkHttp();

    // Send HTTP requests to https://rdap.org/<type>/<object>, where <type> is the object type (one of domain, ip, autnum, entity etc)
    // and <object> is the object identifier (eg example.com, 192.168.0.1, 64496, etc).

    // For example, here's a lookup for "oracle.com"
    CkStringBuilder sbResponse = new CkStringBuilder();
    boolean success = http.QuickGetSb("https://rdap.org/domain/oracle.com",sbResponse);
    if (success == false) {
        System.out.println(http.lastErrorText());
        return;
        }

    int statusCode = http.get_LastStatus();
    if (statusCode != 200) {
        System.out.println("Error response:");
        System.out.println(sbResponse.getAsString());
        System.out.println("status code: " + statusCode);
        return;
        }

    // Load the JSON response and examine..

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    CkJsonObject json = new CkJsonObject();
    json.LoadSb(sbResponse);
    json.put_EmitCompact(false);
    System.out.println(json.emit());

    // Here's a sample response, and the parsing code generated from the above online tool follows..

    // {
    //   "objectClassName": "domain",
    //   "handle": "607513_DOMAIN_COM-VRSN",
    //   "ldhName": "ORACLE.COM",
    //   "links": [
    //     {
    //       "value": "https:\/\/rdap.verisign.com\/com\/v1\/domain\/ORACLE.COM",
    //       "rel": "self",
    //       "href": "https:\/\/rdap.verisign.com\/com\/v1\/domain\/ORACLE.COM",
    //       "type": "application\/rdap+json"
    //     },
    //     {
    //       "value": "https:\/\/rdap.markmonitor.com\/rdap\/domain\/ORACLE.COM",
    //       "rel": "related",
    //       "href": "https:\/\/rdap.markmonitor.com\/rdap\/domain\/ORACLE.COM",
    //       "type": "application\/rdap+json"
    //     }
    //   ],
    //   "status": [
    //     "client delete prohibited",
    //     "client transfer prohibited",
    //     "client update prohibited",
    //     "server delete prohibited",
    //     "server transfer prohibited",
    //     "server update prohibited"
    //   ],
    //   "entities": [
    //     {
    //       "objectClassName": "entity",
    //       "handle": "292",
    //       "roles": [
    //         "registrar"
    //       ],
    //       "publicIds": [
    //         {
    //           "type": "IANA Registrar ID",
    //           "identifier": "292"
    //         }
    //       ],
    //       "vcardArray": [
    //         "vcard",
    //         [
    //           [
    //             "version",
    //             {},
    //             "text",
    //             "4.0"
    //           ],
    //           [
    //             "fn",
    //             {},
    //             "text",
    //             "MarkMonitor Inc."
    //           ]
    //         ]
    //       ],
    //       "entities": [
    //         {
    //           "objectClassName": "entity",
    //           "roles": [
    //             "abuse"
    //           ],
    //           "vcardArray": [
    //             "vcard",
    //             [
    //               [
    //                 "version",
    //                 {},
    //                 "text",
    //                 "4.0"
    //               ],
    //               [
    //                 "fn",
    //                 {},
    //                 "text",
    //                 ""
    //               ],
    //               [
    //                 "tel",
    //                 {
    //                   "type": "voice"
    //                 },
    //                 "uri",
    //                 "tel:+1.2086851750"
    //               ],
    //               [
    //                 "email",
    //                 {},
    //                 "text",
    //                 "abusecomplaints@markmonitor.com"
    //               ]
    //             ]
    //           ]
    //         }
    //       ]
    //     }
    //   ],
    //   "events": [
    //     {
    //       "eventAction": "registration",
    //       "eventDate": "1988-12-02T05:00:00Z"
    //     },
    //     {
    //       "eventAction": "expiration",
    //       "eventDate": "2025-12-01T05:00:00Z"
    //     },
    //     {
    //       "eventAction": "last changed",
    //       "eventDate": "2024-10-30T09:32:52Z"
    //     },
    //     {
    //       "eventAction": "last update of RDAP database",
    //       "eventDate": "2024-11-26T14:11:14Z"
    //     }
    //   ],
    //   "secureDNS": {
    //     "delegationSigned": false
    //   },
    //   "nameservers": [
    //     {
    //       "objectClassName": "nameserver",
    //       "ldhName": "A1-160.AKAM.NET"
    //     },
    //     {
    //       "objectClassName": "nameserver",
    //       "ldhName": "A11-66.AKAM.NET"
    //     },
    //     {
    //       "objectClassName": "nameserver",
    //       "ldhName": "A13-65.AKAM.NET"
    //     },
    //     {
    //       "objectClassName": "nameserver",
    //       "ldhName": "A18-67.AKAM.NET"
    //     },
    //     {
    //       "objectClassName": "nameserver",
    //       "ldhName": "NS1.P201.DNS.ORACLECLOUD.NET"
    //     },
    //     {
    //       "objectClassName": "nameserver",
    //       "ldhName": "NS2.P201.DNS.ORACLECLOUD.NET"
    //     },
    //     {
    //       "objectClassName": "nameserver",
    //       "ldhName": "NS3.P201.DNS.ORACLECLOUD.NET"
    //     },
    //     {
    //       "objectClassName": "nameserver",
    //       "ldhName": "NS4.P201.DNS.ORACLECLOUD.NET"
    //     }
    //   ],
    //   "rdapConformance": [
    //     "rdap_level_0",
    //     "icann_rdap_technical_implementation_guide_0",
    //     "icann_rdap_response_profile_0"
    //   ],
    //   "notices": [
    //     {
    //       "title": "Terms of Use",
    //       "description": [
    //         "Service subject to Terms of Use."
    //       ],
    //       "links": [
    //         {
    //           "href": "https:\/\/www.verisign.com\/domain-names\/registration-data-access-protocol\/terms-service\/index.xhtml",
    //           "type": "text\/html"
    //         }
    //       ]
    //     },
    //     {
    //       "title": "Status Codes",
    //       "description": [
    //         "For more information on domain status codes, please visit https:\/\/icann.org\/epp"
    //       ],
    //       "links": [
    //         {
    //           "href": "https:\/\/icann.org\/epp",
    //           "type": "text\/html"
    //         }
    //       ]
    //     },
    //     {
    //       "title": "RDDS Inaccuracy Complaint Form",
    //       "description": [
    //         "URL of the ICANN RDDS Inaccuracy Complaint Form: https:\/\/icann.org\/wicf"
    //       ],
    //       "links": [
    //         {
    //           "href": "https:\/\/icann.org\/wicf",
    //           "type": "text\/html"
    //         }
    //       ]
    //     }
    //   ]
    // }

    String value;
    String rel;
    String href;
    String v_type;
    String strVal;
    int j;
    int count_j;
    String identifier;
    int k;
    int count_k;
    CkJsonObject json1;
    int i1;
    int count_i1;
    int j1;
    int count_j1;
    String eventAction;
    String eventDate;
    String title;

    String objectClassName = json.stringOf("objectClassName");
    String handle = json.stringOf("handle");
    String ldhName = json.stringOf("ldhName");
    boolean DelegationSigned = json.BoolOf("secureDNS.delegationSigned");
    int i = 0;
    int count_i = json.SizeOfArray("links");
    while (i < count_i) {
        json.put_I(i);
        value = json.stringOf("links[i].value");
        rel = json.stringOf("links[i].rel");
        href = json.stringOf("links[i].href");
        v_type = json.stringOf("links[i].type");
        i = i+1;
        }

    i = 0;
    count_i = json.SizeOfArray("status");
    while (i < count_i) {
        json.put_I(i);
        strVal = json.stringOf("status[i]");
        i = i+1;
        }

    i = 0;
    count_i = json.SizeOfArray("entities");
    while (i < count_i) {
        json.put_I(i);
        objectClassName = json.stringOf("entities[i].objectClassName");
        handle = json.stringOf("entities[i].handle");
        j = 0;
        count_j = json.SizeOfArray("entities[i].roles");
        while (j < count_j) {
            json.put_J(j);
            strVal = json.stringOf("entities[i].roles[j]");
            j = j+1;
            }

        j = 0;
        count_j = json.SizeOfArray("entities[i].publicIds");
        while (j < count_j) {
            json.put_J(j);
            v_type = json.stringOf("entities[i].publicIds[j].type");
            identifier = json.stringOf("entities[i].publicIds[j].identifier");
            j = j+1;
            }

        j = 0;
        count_j = json.SizeOfArray("entities[i].vcardArray");
        while (j < count_j) {
            json.put_J(j);
            strVal = json.stringOf("entities[i].vcardArray[j]");
            k = 0;
            count_k = json.SizeOfArray("entities[i].vcardArray[j]");
            while (k < count_k) {
                json.put_K(k);

                json1 = json.ObjectOf("entities[i].vcardArray[j][k]");
                i1 = 0;
                count_i1 = json1.SizeOfArray("");
                while (i1 < count_i1) {
                    json1.put_I(i1);
                    strVal = json1.stringOf("[i]");
                    i1 = i1+1;
                    }

                k = k+1;
                }

            j = j+1;
            }

        j = 0;
        count_j = json.SizeOfArray("entities[i].entities");
        while (j < count_j) {
            json.put_J(j);
            objectClassName = json.stringOf("entities[i].entities[j].objectClassName");
            k = 0;
            count_k = json.SizeOfArray("entities[i].entities[j].roles");
            while (k < count_k) {
                json.put_K(k);
                strVal = json.stringOf("entities[i].entities[j].roles[k]");
                k = k+1;
                }

            k = 0;
            count_k = json.SizeOfArray("entities[i].entities[j].vcardArray");
            while (k < count_k) {
                json.put_K(k);
                strVal = json.stringOf("entities[i].entities[j].vcardArray[k]");

                json1 = json.ObjectOf("entities[i].entities[j].vcardArray[k]");
                i1 = 0;
                count_i1 = json1.SizeOfArray("");
                while (i1 < count_i1) {
                    json1.put_I(i1);
                    j1 = 0;
                    count_j1 = json1.SizeOfArray("[i]");
                    while (j1 < count_j1) {
                        json1.put_J(j1);
                        strVal = json1.stringOf("[i][j]");
                        j1 = j1+1;
                        }

                    i1 = i1+1;
                    }

                k = k+1;
                }

            j = j+1;
            }

        i = i+1;
        }

    i = 0;
    count_i = json.SizeOfArray("events");
    while (i < count_i) {
        json.put_I(i);
        eventAction = json.stringOf("events[i].eventAction");
        eventDate = json.stringOf("events[i].eventDate");
        i = i+1;
        }

    i = 0;
    count_i = json.SizeOfArray("nameservers");
    while (i < count_i) {
        json.put_I(i);
        objectClassName = json.stringOf("nameservers[i].objectClassName");
        ldhName = json.stringOf("nameservers[i].ldhName");
        i = i+1;
        }

    i = 0;
    count_i = json.SizeOfArray("rdapConformance");
    while (i < count_i) {
        json.put_I(i);
        strVal = json.stringOf("rdapConformance[i]");
        i = i+1;
        }

    i = 0;
    count_i = json.SizeOfArray("notices");
    while (i < count_i) {
        json.put_I(i);
        title = json.stringOf("notices[i].title");
        j = 0;
        count_j = json.SizeOfArray("notices[i].description");
        while (j < count_j) {
            json.put_J(j);
            strVal = json.stringOf("notices[i].description[j]");
            j = j+1;
            }

        j = 0;
        count_j = json.SizeOfArray("notices[i].links");
        while (j < count_j) {
            json.put_J(j);
            href = json.stringOf("notices[i].links[j].href");
            v_type = json.stringOf("notices[i].links[j].type");
            j = j+1;
            }

        i = i+1;
        }
  }
}