Example usage for com.google.gwt.http.client RequestBuilder RequestBuilder

List of usage examples for com.google.gwt.http.client RequestBuilder RequestBuilder

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  4. com.google.gwt.http.client.*
  5. RequestBuilder
  6. RequestBuilder

Introduction

In this page you can find the example usage for com.google.gwt.http.client RequestBuilder RequestBuilder.

Prototype

protected RequestBuilder(String httpMethod, String url)

Source Link

Document

Creates a builder using the parameters values for configuration.

Usage

From source file:com.bramosystems.oss.player.showcase.client.PlaylistPane.java

License:Apache License

private void loadList(String provider) {
    String spf = GWT.getHostPageBaseURL() + "media/jspf-core.json";
    if (provider.equals("bst.vimeo")) {
        spf = GWT.getHostPageBaseURL() + "media/jspf-vimeo.json";
    } else if (provider.equals("bst.youtube")) {
        spf = GWT.getHostPageBaseURL() + "media/jspf-youtube.json";
    }/* w  ww  .  j  a  v  a 2 s . c  o  m*/

    try {
        RequestBuilder rb = new RequestBuilder(RequestBuilder.GET, spf);
        rb.sendRequest(null, new RequestCallback() {
            @Override
            public void onResponseReceived(Request request, Response response) {
                try {
                    SPFPlaylist spf = PlaylistFactory.parseJspfPlaylist(response.getText());
                    entries = spf.toPlaylist();
                    refreshView();
                } catch (ParseException ex) {
                    GWT.log("Parse Exception", ex);
                }
            }

            @Override
            public void onError(Request request, Throwable exception) {
            }
        });
    } catch (RequestException ex) {
        GWT.log("Request Exception", ex);
    }
}

From source file:com.brentryan.client.widgets.dialogs.AboutDialog.java

public AboutDialog() {

    aboutDialog.addButton(new Button("aboutOk", new ButtonConfig() {

        {/*www  . j ava2 s . c  o  m*/
            setText(DIALOG_CONSTANTS.Ok());
            setButtonListener(new ButtonListenerAdapter() {

                public void onClick(Button button, EventObject e) {
                    aboutDialog.destroy(true);
                }
            });
        }
    }));

    RequestBuilder rb = new RequestBuilder(RequestBuilder.GET, "License.html");
    rb.setTimeoutMillis(30000);

    try {
        rb.sendRequest(null, new RequestCallback() {

            public void onError(Request request, Throwable exception) {
                aboutDialog.destroy(true);
                MessageBox.alert(DIALOG_CONSTANTS.ErrorTitle(), CONSTANTS.LicenseError());
            }

            public void onResponseReceived(Request request, Response response) {
                // add content to the center region
                BorderLayout layout = aboutDialog.getLayout();
                ContentPanel contentPanel = new ContentPanel();
                contentPanel.add(new HTML(response.getText()));
                layout.add(contentPanel);
                aboutDialog.show();
            }
        });
    } catch (RequestException e) {
        GWT.log("Error while retrieving BrentRyan license", e);
    }

    initWidget(aboutDialog);
}

From source file:com.calclab.emite.base.util.Platform.java

License:Open Source License

/**
 * Send a BOSH HTTP request to a server.
 * //from   w  w  w  . j  a  va  2 s.c o  m
 * @param httpBase the base URL to send the request
 * @param request the request contents
 * @param callback a callback to process the response
 */
public static final void sendXML(final String httpBase, final XMLPacket request,
        final AsyncResult<XMLPacket> callback) {
    final RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, httpBase);
    builder.setHeader(HttpHeaders.CONTENT_TYPE, "text/xml; charset=utf-8");
    //builder.setHeader(HttpHeaders.CACHE_CONTROL, "no-cache");
    //builder.setHeader(HttpHeaders.PRAGMA, "no-cache");
    // TODO : Hard coded timeout to 6s, but we should set it to the wait + a delta
    // builder.setTimeoutMillis(6000);
    try {
        final Request req = builder.sendRequest(request.toString(), new RequestCallback() {
            @Override
            public void onResponseReceived(@Nullable final Request req, @Nullable final Response res) {
                requests.remove(req);
                if (res.getStatusCode() != Response.SC_OK) {
                    callback.onError(new RequestException(
                            "Invalid status " + res.getStatusCode() + ": " + res.getStatusText()));
                    return;
                }

                final XMLPacket response = XMLBuilder.fromXML(res.getText());
                if (response == null || !"body".equals(response.getTagName())) {
                    callback.onError(new RequestException("Bad response: " + res.getText()));
                    return;
                }

                callback.onSuccess(response);
            }

            @Override
            public void onError(@Nullable final Request req, @Nullable final Throwable throwable) {
                logger.severe("GWT CONNECTOR ERROR: " + throwable.getMessage());
                requests.remove(req);
                callback.onError(throwable);
            }
        });
        requests.add(req);
    } catch (final RequestException e) {
        callback.onError(e);
    } catch (final Exception e) {
        logger.severe("Some GWT connector exception: " + e.getMessage());
        callback.onError(e);
    }
}

From source file:com.calclab.emite.core.client.services.gwt.GWTConnector.java

License:Open Source License

public static void send(final String httpBase, final String request, final ConnectorCallback listener,
        final int timeoutMillis) throws ConnectorException {
    final RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, httpBase);
    builder.setHeader("Content-Type", "text/xml; charset=utf-8");
    builder.setHeader("Cache-Control", "no-cache");
    builder.setHeader("Pragma", "no-cache");

    if (timeoutMillis > 0) {
        builder.setTimeoutMillis(timeoutMillis);
    }/* w  w  w  . j  a  va  2 s.  co m*/

    // TODO : Hard coded timeout to 6s, but we should set it to the wait + a
    // delta
    // builder.setTimeoutMillis(6000);
    try {
        final Request req = builder.sendRequest(request, new RequestCallback() {
            @Override
            public void onError(final Request req, final Throwable throwable) {
                logger.severe("GWT CONNECTOR ERROR: " + throwable.getMessage());
                activeRequests.remove(req);
                listener.onError(request, throwable);
            }

            @Override
            public void onResponseReceived(final Request req, final Response res) {
                activeRequests.remove(req);
                listener.onResponseReceived(res.getStatusCode(), res.getText(), request);
            }
        });

        activeRequests.add(req);
    } catch (final RequestException e) {
        throw new ConnectorException(e.getMessage());
    } catch (final Exception e) {
        logger.severe("Some GWT connector exception: " + e.getMessage());
        throw new ConnectorException(e.getMessage());
    }
}

From source file:com.charlie.client.panels.SonglistPanel.java

License:Open Source License

public void addEventHandlers() {
    Controller.getEventBus().addHandler(GetRecentlyUploadedSongsFromUserAndAllFriendsEvent.TYPE,
            new GetRecentlyUploadedSongsFromUserAndAllFriendsEventHandler() {

                @Override//from w w w . j  a v a  2 s  . c om
                public void handle(Long userId) {
                    setTitleForContentPanel("Playlist - Recently Uploaded");
                    Controller.getIntsance().setSongRetrievalType(SongRetrievalType.RECENLTY_UPLOADED);
                    loader.load();
                }
            });
    Controller.getEventBus().addHandler(GetRecentlyUploadedSongsFromAllEvent.TYPE,
            new GetRecentlyUploadedSongsFromAllEventHandler() {

                @Override
                public void handle(Long userId) {

                    Controller.getIntsance().setSongRetrievalType(SongRetrievalType.RECENLTY_UPLOADED_ALL);
                    loader.load();
                }
            });

    Controller.getEventBus().addHandler(ShowNowPlayingEvent.TYPE, new ShowNowPlayingEventHandler() {

        @Override
        public void handle() {
            setTitleForContentPanel("Playlist - Now Playing");

            grid.getStore().removeAll();
            grid.getStore().add(Controller.getPlaylistManager().getPlaylist());

        }
    });

    Controller.getEventBus().addHandler(SongFinishedLoadingEvent.TYPE, new SongFinishedLoadingEventHandler() {

        @Override
        public void handle(SongModelData song) {

        }
    });

    Controller.getEventBus().addHandler(PlaySongEvent.TYPE, new PlaySongEventHandler() {

        @Override
        public void handle(SongModelData song, Integer volume) {
            RequestBuilder builder = new RequestBuilder(RequestBuilder.GET,
                    GWT.getHostPageBaseURL() + "servlet/albumArtwork?artist=" + URL.encode(song.getArtist())
                            + "&album=" + URL.encode(song.getAlbum()));
            try {
                selectSongOnGrid(song);
                Window.setTitle(song.getArtist() + " - " + song.getSongName());

            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

        }

    });

    Controller.getEventBus().addHandler(GetCollectiveSongsForUserEvent.TYPE,
            new GetCollectiveSongsForUserEventHandler() {

                @Override
                public void handle(Long userId) {
                    setTitleForContentPanel("Playlist - Collective Songs For User");
                    Controller.getIntsance().setSongRetrievalType(SongRetrievalType.USER_COLLECTIVE);
                    collectiveUserId = userId;
                    loader.load();

                }
            });

    Controller.getEventBus().addHandler(RandomizePlaylistEvent.TYPE, new RandomizePlaylistEventHandler() {

        @Override
        public void handle() {
            grid.mask("Shuffling...");
            randomizePlaylist();
            grid.unmask();

        }
    });

    Controller.getEventBus().addHandler(UnrandomizePlaylistEvent.TYPE, new UnrandomizePlaylistEventHandler() {

        @Override
        public void handle() {
            unrandomizePlaylist();

        }
    });

    Controller.getEventBus().addHandler(PlaylistsNeedReloadingEvent.TYPE,
            new PlaylistsNeedReloadingEventHandler() {

                @Override
                public void handle() {

                    PlaylistModelData model = new PlaylistModelData();
                    model.setUserId(Controller.getIntsance().getUserId());
                    SiteServiceImpl.getInstance().getPlaylists(model, Controller.getIntsance().getUserId(),
                            new AsyncCallback<List<PlaylistModelData>>() {

                                @Override
                                public void onSuccess(List<PlaylistModelData> result) {
                                    Controller.getEventBus().fireEvent(new PlaylistsListLoadedEvent(result));

                                }

                                @Override
                                public void onFailure(Throwable caught) {

                                }
                            });

                }
            });

    Controller.getEventBus().addHandler(GetSongsForUserAndAllFriendsEvent.TYPE,
            new GetSongsForUserAndAllFriendsEventHandler() {

                @Override
                public void handle(Long userId) {
                    Controller.getIntsance().setSongRetrievalType(SongRetrievalType.ALL_USERS);
                    loader.load();

                }
            });

    Controller.getEventBus().addHandler(GetSongsForAllEvent.TYPE, new GetSongsForAllEventHandler() {

        @Override
        public void handle(Long userId) {
            setTitleForContentPanel("Playlist - All Music");
            Controller.getIntsance().setSongRetrievalType(SongRetrievalType.ALL_USERS);
            loader.load();

        }
    });

    Controller.getEventBus().addHandler(GetCollectiveSongsForUserAndAllFriendsEvent.TYPE,
            new GetCollectiveSongsForUserAndAllFriendsEventHandler() {

                @Override
                public void handle(Long userId) {
                    // setTitleForContentPanel("Playlist - The Collective");
                    // starCountcolumn.setHeader("# Users");
                    setTitleForContentPanel("Playlist - The Collective");
                    Controller.getIntsance().setSongRetrievalType(SongRetrievalType.COLLECTIVE);
                    loader.load();

                }
            });

    Controller.getEventBus().addHandler(PlaylistsListLoadedEvent.TYPE, new PlaylistsListLoadedEventHandler() {

        @Override
        public void handle(List<PlaylistModelData> playlists) {

            playlistSubMenu.removeAll();
            playlistSubMenu.add(newPlaylist);
            playlistSubMenu.add(new SeparatorMenuItem());

            for (final PlaylistModelData playlistModelData : playlists) {
                playlistSubMenu
                        .add(new MenuItem(playlistModelData.getName(), new SelectionListener<MenuEvent>() {

                            @Override
                            public void componentSelected(MenuEvent ce) {

                                Controller.getEventBus().fireEvent(
                                        new AddSongToPlaylistEvent(playlistModelData, getSelectedSongs()));
                            }

                        }));
            }

            playlistTopLevelMenu.setSubMenu(playlistSubMenu);
        }
    });

    Controller.getEventBus().addHandler(PlayPlaylistEvent.TYPE, new PlayPlaylistEventHandler() {

        @Override
        public void handle(PlaylistModelData playlist) {
            setTitleForContentPanel("Playlist - Playing playlist [" + playlist.getName() + "]");

            Controller.getIntsance().setPlaylist(playlist);
            Controller.getIntsance().setSongRetrievalType(SongRetrievalType.PLAYLIST);

            loader.load();

        }
    });

    Controller.getEventBus().addHandler(EditPlaylistEvent.TYPE, new EditPlaylistEventHandler() {

        @Override
        public void handle(PlaylistModelData playlist) {
            setTitleForContentPanel("Playlist - Editing playlist [" + playlist.getName() + "]");

            Controller.getIntsance().setPlaylist(playlist);
            Controller.getIntsance().setSongRetrievalType(SongRetrievalType.EDIT_PLAYLIST);

            loader.load();

        }
    });

    Controller.getEventBus().addHandler(GetSongsForUserEvent.TYPE, new GetSongsForUserEventHandler() {

        @Override
        public void handle(Long userId) {
            setTitleForContentPanel("Playlist - All Songs For User");
            Controller.getIntsance().getMainPage().showPlayListInCenter();
            Controller.getIntsance().setPlaylistUserId(userId);
            Controller.getIntsance().setSongRetrievalType(SongRetrievalType.SINGLE_USER);
            loader.load();

            // DeferredCommand.addCommand(new Command() {
            //
            // @Override
            // public void execute() {
            //
            // pagingToolBar.enable();
            // }
            //
            // });

        }
    });

    Controller.getEventBus().addHandler(SearchSongsFromAllFriendsPagedEvent.TYPE,
            new SearchSongsFromAllFriendsPagedEventHandler() {

                @Override
                public void handle(Long userId, String searchTerm) {
                    setTitleForContentPanel("Playlist - Song search [" + searchTerm + "]");
                    MP3PlayerInfo.display("Info", "Now searching for " + searchTerm);
                    Controller.getIntsance().setSearchTerm(searchTerm);
                    Controller.getIntsance().setSongRetrievalType(SongRetrievalType.SEARCH);
                    loader.load();
                    DeferredCommand.addCommand(new Command() {

                        @Override
                        public void execute() {
                            pagingToolBar.first();

                        }
                    });
                }

            });

    Controller.getEventBus().addHandler(SearchSongsByArtistFromAllFriendsPagedEvent.TYPE,
            new SearchSongsByArtistFromAllFriendsPagedEventHandler() {

                @Override
                public void handle(Long userId, String searchTerm) {
                    MP3PlayerInfo.display("Info", "Now searching for the artist " + searchTerm);
                    setTitleForContentPanel("Playlist - Song search by artist [" + searchTerm + "]");
                    Controller.getIntsance().setSearchTerm(searchTerm);
                    Controller.getIntsance().setSongRetrievalType(SongRetrievalType.ARIST_SEARCH);
                    loader.load();
                    DeferredCommand.addCommand(new Command() {

                        @Override
                        public void execute() {
                            pagingToolBar.first();

                        }
                    });
                }

            });

    Controller.getEventBus().addHandler(SearchSongsByAlbumFromAllFriendsPagedEvent.TYPE,
            new SearchSongsByAlbumFromAllFriendsPagedEventHandler() {

                @Override
                public void handle(Long userId, String searchTerm) {
                    setTitleForContentPanel("Playlist - Song search by album [" + searchTerm + "]");
                    MP3PlayerInfo.display("Info", "Now searching for the album " + searchTerm);
                    Controller.getIntsance().setSearchTerm(searchTerm);
                    Controller.getIntsance().setSongRetrievalType(SongRetrievalType.ALBUM_SEARCH);
                    loader.load();
                    DeferredCommand.addCommand(new Command() {

                        @Override
                        public void execute() {
                            pagingToolBar.first();

                        }
                    });
                }

            });

    Controller.getEventBus().addHandler(SearchSongsByGenreFromAllFriendsPagedEvent.TYPE,
            new SearchSongsByGenreFromAllFriendsPagedEventHandler() {

                @Override
                public void handle(Long userId, String searchTerm) {
                    MP3PlayerInfo.display("Info", "Now searching for the genre " + searchTerm);
                    setTitleForContentPanel("Playlist - Song search by album [" + searchTerm + "]");
                    Controller.getIntsance().setSearchTerm(searchTerm);
                    Controller.getIntsance().setSongRetrievalType(SongRetrievalType.GENRE_SEARCH);
                    loader.load();
                    DeferredCommand.addCommand(new Command() {

                        @Override
                        public void execute() {
                            pagingToolBar.first();

                        }
                    });
                }

            });

    Controller.getEventBus().addHandler(SearchSongsByThisAndSimilarArtistsFromAllFriendsPagedEvent.TYPE,
            new SearchSongsByThisAndSimilarArtistsFromAllFriendsPagedEventHandler() {

                @Override
                public void handle(Long userId, String searchTerm) {
                    MP3PlayerInfo.display("Info", "Now searching for " + searchTerm + " and similar artists.");
                    Controller.getIntsance().setSearchTerm(searchTerm);
                    Controller.getIntsance().setSongRetrievalType(SongRetrievalType.SIMILAR_ARTIST_SEARCH);
                    loader.load();
                    DeferredCommand.addCommand(new Command() {

                        @Override
                        public void execute() {
                            pagingToolBar.first();

                        }
                    });
                }

            });

    Controller.getEventBus().addHandler(SearchSongsRandomByThisAndSimilarArtistsFromAllFriendsPagedEvent.TYPE,
            new SearchSongsRandomByThisAndSimilarArtistsFromAllFriendsPagedEventHandler() {

                @Override
                public void handle(Long userId, String searchTerm) {
                    MP3PlayerInfo.display("Info",
                            "Creating a playlist for similar artists of  " + searchTerm + "");
                    Controller.getIntsance().setSearchTerm(searchTerm);
                    Controller.getIntsance()
                            .setSongRetrievalType(SongRetrievalType.SIMILAR_ARTIST_SEARCH_RANDOM);
                    loader.load();
                    DeferredCommand.addCommand(new Command() {

                        @Override
                        public void execute() {

                            Controller.getPlaylistManager().resetPlaylist();
                            List<SongModelData> playlist = Controller.getPlaylistManager().getPlaylist();

                            Controller.getPlaylistManager().setPlaylist(playlist, 0);

                        }
                    });
                }

            });

    // Legacy shit, this calls arent used anymore
    // Controller.getEventBuss().addHandler(SearchSongsForUserEvent.TYPE,
    // new SearchSongsForUserEventHandler(){
    //
    // @Override
    // public void handle(ArrayList<SongModelData> songs) {
    //            
    // songsByUserIdStore.removeAll();
    // songsByUserIdStore.add(songs);
    // grid.unmask();
    // Controller.getIntsance().ensurePlaylistIsVisible();
    // }
    //         
    // });
    //      
    // Controller.getEventBuss().addHandler(SearchSongsFromAllFriendsEvent.TYPE,
    // new SearchSongsFromAllFriendsEventHandler(){
    //
    // @Override
    // public void handle(ArrayList<SongModelData> songs) {
    //            
    // songsByUserIdStore.removeAll();
    // songsByUserIdStore.add(songs);
    // grid.unmask();
    // Controller.getIntsance().ensurePlaylistIsVisible();
    // }
    //         
    // });

}

From source file:com.data2semantics.yasgui.client.helpers.AppcacheHelper.java

License:Open Source License

public void getAppcacheSize() {
    String url = GWT.getModuleBaseURL() + "manifest.appcache?count";
    if (JsMethods.isDevPageLoaded())
        url += "&type=dev";
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);
    try {//  w w  w. j  a  v a  2s. c o m
        builder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable e) {
                view.getLogger().severe("Unable to fetch appcache count (does browser support appcache??)");
            }

            @Override
            public void onResponseReceived(Request request, Response response) {
                if (response.getStatusCode() == 200) {
                    setAppcacheSize(response.getText());
                } else {
                    view.getLogger().severe("Unable to fetch appcache count (does browser support appcache??)");
                }

            }
        });
    } catch (RequestException e) {
        //couldnt connect to server
        view.getLogger().severe("Unable to fetch appcache count (does browser support appcache??)");
    }
}

From source file:com.data2semantics.yasgui.client.helpers.SparqlQuery.java

License:Open Source License

public void doRequest() {
    if (!view.getConnHelper().isOnline() && !JsMethods.corsEnabled(endpoint)) {
        //cors disabled and not online: problem!
        String errorMsg = "YASGUI is current not connected to the YASGUI server. "
                + "This mean you can only access endpoints on your own computer (e.g. localhost), which are <a href=\"http://enable-cors.org/\" target=\"_blank\">CORS enabled</a>.<br>"
                + "The endpoint you try to access is either not running on your computer, or not CORS-enabled.<br>"
                + corsNotification;/*from   ww  w.j  a  v a  2 s .  c o m*/
        view.getErrorHelper().onQueryError(errorMsg, endpoint, queryString, customQueryArgs);
        return;
    }

    view.getElements().onQueryStart();
    RequestBuilder builder;
    HashMultimap<String, String> queryArgs = customQueryArgs;
    RequestBuilder.Method requestMethod = queryRequestMethod;
    queryArgs.put("query", queryString);
    if (JsMethods.corsEnabled(endpoint)) {
        String params = Helper.getParamsAsString(queryArgs);
        String url = endpoint;
        if (queryRequestMethod == RequestBuilder.GET) {
            url += "?" + params;
        }
        builder = new RequestBuilder(queryRequestMethod, url);
        if (queryRequestMethod == RequestBuilder.POST) {
            builder.setHeader("Content-Type", "application/x-www-form-urlencoded");
            builder.setRequestData(params);
        }
    } else {
        requestMethod = RequestBuilder.POST;
        queryArgs.put("endpoint", endpoint);
        queryArgs.put("requestMethod", (queryRequestMethod == RequestBuilder.POST ? "POST" : "GET"));
        builder = new RequestBuilder(RequestBuilder.POST, GWT.getModuleBaseURL() + "sparql"); //send via proxy
        builder.setHeader("Content-Type", "application/x-www-form-urlencoded");
    }
    builder.setHeader("Accept", acceptHeader);
    try {
        final long startTime = System.currentTimeMillis();
        builder.sendRequest((requestMethod == RequestBuilder.POST ? Helper.getParamsAsString(queryArgs) : null),
                new RequestCallback() {
                    public void onError(Request request, Throwable e) {
                        //e.g. a timeout
                        queryErrorHandler(e);
                    }

                    @Override
                    public void onResponseReceived(Request request, Response response) {
                        view.getElements().onQueryFinish();
                        if (!response.getStatusText().equals("Abort")) {
                            //if user cancels query, textStatus will be 'abort'. No need to show error window then
                            if (response.getStatusCode() >= 200 && response.getStatusCode() < 300) {
                                if (view.getSettings().useGoogleAnalytics()) {
                                    long stopTime = System.currentTimeMillis();
                                    GoogleAnalytics.trackEvent(new GoogleAnalyticsEvent(endpoint,
                                            JsMethods.getUncommentedSparql(queryString),
                                            Integer.toString((int) (stopTime - startTime)),
                                            (int) (stopTime - startTime)));
                                }
                                drawResults(response.getText(), response.getHeader("Content-Type"));
                            } else {
                                queryErrorHandler(response);

                            }
                        }

                    }
                });
    } catch (RequestException e) {
        queryErrorHandler(e);
    }
}

From source file:com.dawg6.gwt.client.service.ServiceUtil.java

License:Open Source License

public void versionCheck(final Handler<VersionCheck> handler) {
    Scheduler.get().scheduleDeferred(new Command() {

        @Override/*from w ww  . j  av  a2  s  . c o  m*/
        public void execute() {
            RequestBuilder builder = new RequestBuilder(RequestBuilder.GET,
                    GWT.getHostPageBaseURL() + versionServletUri);

            //            GWT.log("Version URL = " + builder.getUrl());

            final VersionCheck result = new VersionCheck();

            try {
                builder.sendRequest(null, new RequestCallback() {

                    @Override
                    public void onResponseReceived(Request request, Response response) {

                        String text = response.getText();

                        if (text != null) {
                            if (text.startsWith(VersionBuilder.PREFIX)) {

                                result.serverVersion = text.substring(VersionBuilder.PREFIX.length());

                                if (text.startsWith(CLIENT_VERSION.getPrefixString())) {
                                    result.success = true;
                                }

                            }
                        }

                        if ((!result.success) && (result.serverVersion == null)) {
                            result.exception = "Unable to obtain Server version.";
                        }

                        if (handler != null)
                            handler.handleResult(result);
                    }

                    @Override
                    public void onError(Request request, Throwable exception) {
                        result.success = false;
                        result.exception = "Error communicating with server.";

                        if (handler != null)
                            handler.handleResult(result);
                    }
                });

            } catch (Exception e) {
                result.success = false;
                result.exception = "Error communicating with server.";

                if (handler != null)
                    handler.handleResult(result);
            }
        }
    });

}

From source file:com.dawg6.web.dhcalc.client.Service.java

License:Open Source License

public void versionCheck(final Handler<VersionCheck> handler) {
    Scheduler.get().scheduleDeferred(new Command() {

        @Override//from   w ww.j  a  va  2  s .co m
        public void execute() {
            RequestBuilder builder = new RequestBuilder(RequestBuilder.GET,
                    GWT.getHostPageBaseURL() + "version?v2");

            final VersionCheck result = new VersionCheck();

            try {
                builder.sendRequest(null, new RequestCallback() {

                    @Override
                    public void onResponseReceived(Request request, Response response) {

                        String text = response.getText();

                        if (text != null) {
                            if (text.startsWith(Version.PREFIX)) {

                                result.serverVersion = text.substring(Version.PREFIX.length());

                                if (text.startsWith(Version.getVersion().getPrefixString())) {
                                    result.success = true;
                                }

                            }
                        }

                        if ((!result.success) && (result.serverVersion == null)) {
                            result.exception = "Unable to obtain Server version.";
                        }

                        if (handler != null)
                            handler.handleResult(result);
                    }

                    @Override
                    public void onError(Request request, Throwable exception) {
                        result.success = false;
                        result.exception = "Error communicating with server.";

                        if (handler != null)
                            handler.handleResult(result);
                    }
                });

            } catch (Exception e) {
                result.success = false;
                result.exception = "Error communicating with server.";

                if (handler != null)
                    handler.handleResult(result);
            }
        }
    });

}

From source file:com.emitrom.ti4j.mobile.rpc.client.requestfactory.Ti4jMobileDefaultRequestTransport.java

License:Apache License

/**
 * Constructs a {@link RequestBuilder} using the {@link RequestBuilder#POST}
 * method sent to the URL returned from {@link #getRequestUrl()}.
 * //from  w  ww.  j a v  a 2  s  . c  om
 * @return a {@link RequestBuilder} instance
 */
protected RequestBuilder createRequestBuilder() {
    return new RequestBuilder(RequestBuilder.POST, getHost() + URL);
}