code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/catalog/GetUserCatalogs.java

   1 package gr.grnet.pithos.web.client.catalog;
   2
   3 import com.google.gwt.core.client.GWT;
   4 import com.google.gwt.core.client.Scheduler;
   5 import com.google.gwt.http.client.*;
   6 import com.google.gwt.json.client.JSONArray;
   7 import com.google.gwt.json.client.JSONObject;
   8 import com.google.gwt.json.client.JSONParser;
   9 import com.google.gwt.json.client.JSONValue;
  10 import gr.grnet.pithos.web.client.Helpers;
  11 import gr.grnet.pithos.web.client.Pithos;
  12
  13 import java.util.List;
  14
  15 /**
  16  * The request via which we obtain user catalog info.
  17  */
  18 public class GetUserCatalogs implements Scheduler.ScheduledCommand {
  19     private final String url;
  20     private final String userToken;
  21     private final List<String> ids;
  22     private final List<String> names;
  23
  24     public static final int SuccessCode = 200;
  25     public static final String CallEndPoint = "/user_catalogs";
  26     public static final String RequestField_uuids = "uuids";
  27     public static final String RequestField_displaynames = "displaynames";
  28     public static final String ResponseField_displayname_catalog = "displayname_catalog";
  29     public static final String ResponseField_uuid_catalog = "uuid_catalog";
  30
  31     public GetUserCatalogs(Pithos app) {
  32         this(app, null, null);
  33     }
  34
  35     public GetUserCatalogs(Pithos app, String userID) {
  36         this(app, Helpers.toList(userID), null);
  37     }
  38
  39     public GetUserCatalogs(Pithos app, List<String> ids) {
  40         this(app, ids, null);
  41     }
  42
  43     public GetUserCatalogs(Pithos app, List<String> ids, List<String> names) {
  44         assert app != null;
  45
  46         // https://server.com/v1/ --> https://server.com
  47         String path = app.getApiPath();
  48         path = Helpers.stripTrailing(path, "/");
  49         path = Helpers.upToIncludingLastPart(path, "/");
  50         path = Helpers.stripTrailing(path, "/");
  51
  52         // https://server.com/user_catalogs
  53         this.url = path + CallEndPoint;
  54
  55         this.ids = Helpers.safeList(ids);
  56         this.names = Helpers.safeList(names);
  57         this.userToken = app.getUserToken();
  58     }
  59
  60     public String getURL() {
  61         return url;
  62     }
  63
  64     private JSONObject makeRequestData() {
  65         final JSONObject root = new JSONObject();
  66         final JSONArray uuids = Helpers.listToJSONArray(ids);
  67         final JSONArray displaynames = Helpers.listToJSONArray(names);
  68
  69         root.put(RequestField_uuids, uuids);
  70         root.put(RequestField_displaynames, displaynames);
  71
  72         return root;
  73     }
  74
  75     public UserCatalogs parseResult(JSONObject result) {
  76         final UserCatalogs userCatalogs = new UserCatalogs();
  77         final JSONObject uuid_catalog = result.get(ResponseField_uuid_catalog).isObject();
  78         final JSONObject displayname_catalog = result.get(ResponseField_displayname_catalog).isObject();
  79
  80         for(String uuid: uuid_catalog.keySet()) {
  81             final String name = uuid_catalog.get(uuid).isString().stringValue();
  82             userCatalogs.updateWithIDAndName(uuid, name);
  83         }
  84
  85         for(String name: displayname_catalog.keySet()) {
  86             final String uuid = displayname_catalog.get(name).isString().stringValue();
  87             userCatalogs.updateWithIDAndName(uuid, name);
  88         }
  89
  90         return userCatalogs;
  91     }
  92
  93     public void onSuccess(Request request, Response response, JSONObject result, UserCatalogs userCatalogs) {
  94         System.out.println("GetUserCatalogs: " + result);
  95     }
  96
  97     public void onBadStatusCode(Request request, Response response) {
  98
  99     }
 100
 101     public void onError(Request request, Throwable t) {
 102         GWT.log("GetUserCatalogs", t);
 103         System.out.print("GetUserCatalogs: " + t.getClass().getName() + ": " + t.getMessage());
 104     }
 105
 106     @Override
 107     public void execute() {
 108         final RequestBuilder rb = new RequestBuilder(RequestBuilder.POST, getURL());
 109         rb.setHeader("X-Auth-Token", userToken);
 110         final String requestData = makeRequestData().toString();
 111
 112         try {
 113             System.out.println("==================================");
 114             System.out.println("POST " + getURL());
 115             System.out.println("==================================");
 116             rb.sendRequest(requestData, new RequestCallback() {
 117                 @Override
 118                 public void onResponseReceived(Request request, Response response) {
 119                     final int statusCode = response.getStatusCode();
 120
 121                     if(statusCode != SuccessCode) {
 122                         GetUserCatalogs.this.onBadStatusCode(request, response);
 123                         return;
 124                     }
 125
 126                     final String responseText = response.getText();
 127                     final JSONValue jsonValue = JSONParser.parseStrict(responseText);
 128                     final JSONObject result = jsonValue.isObject();
 129
 130                     if(result == null) {
 131                         GetUserCatalogs.this.onError(request, new Exception("GetUserCatalogs: json result is not an object"));
 132                         return;
 133                     }
 134
 135                     final UserCatalogs userCatalogs = parseResult(result);
 136
 137                     GetUserCatalogs.this.onSuccess(request, response, result, userCatalogs);
 138                 }
 139
 140                 @Override
 141                 public void onError(Request request, Throwable exception) {
 142                     GetUserCatalogs.this.onError(request, exception);
 143                 }
 144             });
 145         }
 146         catch(Exception e) {
 147             GWT.log("GetUserCatalogs", e);
 148         }
 149     }
 150
 151     public void scheduleDeferred() {
 152         Scheduler.get().scheduleDeferred(this);
 153     }
 154 }