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

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

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Introduction

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

Prototype

public void setHeader(String header, String value)

Source Link

Document

Sets a request header with the given name and value.

Usage

From source file:org.pentaho.mantle.client.commands.ShareFileCommand.java

License:Open Source License

public void performOperation() {

    final SolutionFileActionEvent event = new SolutionFileActionEvent();
    event.setAction(this.getClass().getName());

    if (selectedList != null && selectedList.size() == 1) {
        final RepositoryFile item = selectedList.get(0);

        // Checking if the user has access to manage permissions
        String url = contextURL + "api/repo/files/" + SolutionBrowserPanel.pathToId(item.getPath()) //$NON-NLS-1$
                + "/canAccess?permissions=" + MANAGE_ACLS; //$NON-NLS-1$
        RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);
        try {//ww  w  .  j  a v  a2s .co m
            builder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
            builder.sendRequest(null, new RequestCallback() {

                public void onError(Request request, Throwable exception) {
                    FilePropertiesDialog dialog = new FilePropertiesDialog(item, new PentahoTabPanel(), null,
                            defaultTab, false);
                    dialog.showTab(defaultTab);
                    dialog.center();

                    event.setMessage(exception.getMessage());
                    EventBusUtil.EVENT_BUS.fireEvent(event);
                }

                public void onResponseReceived(Request request, Response response) {
                    FilePropertiesDialog dialog = new FilePropertiesDialog(item, new PentahoTabPanel(), null,
                            defaultTab, Boolean.parseBoolean(response.getText()));
                    dialog.showTab(FilePropertiesDialog.Tabs.PERMISSION);
                    dialog.center();

                    event.setMessage("Success");
                    EventBusUtil.EVENT_BUS.fireEvent(event);
                }
            });
        } catch (RequestException e) {
            FilePropertiesDialog dialog = new FilePropertiesDialog(item, new PentahoTabPanel(), null,
                    defaultTab, false);
            dialog.showTab(FilePropertiesDialog.Tabs.PERMISSION);
            dialog.center();

            event.setMessage(e.getMessage());
            EventBusUtil.EVENT_BUS.fireEvent(event);
        }

    }
}

From source file:org.pentaho.mantle.client.commands.ShowBrowserCommand.java

License:Open Source License

public void execute() {
    final SolutionBrowserPanel solutionBrowserPerspective = SolutionBrowserPanel.getInstance();
    solutionBrowserPerspective.setNavigatorShowing(state);
    if (solutionBrowserPerspective != null) {
        if (PerspectiveManager.getInstance().getActivePerspective().getId()
                .equalsIgnoreCase(PerspectiveManager.OPENED_PERSPECTIVE)) {
            PerspectiveManager.getInstance().setPerspective(PerspectiveManager.OPENED_PERSPECTIVE);
        }//from  w ww .j  a  v  a  2 s .com
    }
    final String url = GWT.getHostPageBaseURL() + "api/user-settings/MANTLE_SHOW_NAVIGATOR"; //$NON-NLS-1$
    RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, url);
    try {
        builder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
        builder.sendRequest("" + state, EmptyRequestCallback.getInstance());
    } catch (RequestException e) {
        // showError(e);
    }
}

From source file:org.pentaho.mantle.client.commands.SwitchLocaleCommand.java

License:Open Source License

protected void performOperation(boolean feedback) {
    // stuff the locale in the server's session so we can use it
    // to override the browser setting, as needed

    final String url = GWT.getHostPageBaseURL() + "api/mantle/locale"; //$NON-NLS-1$
    RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, url);
    try {//from  w  w  w. ja v  a  2  s.c o m
        builder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
        builder.sendRequest(locale, new RequestCallback() {

            public void onError(Request request, Throwable exception) {
                // showError(exception);
            }

            public void onResponseReceived(Request request, Response response) {
            }
        });
    } catch (RequestException e) {
        // showError(e);
    }

    String newLocalePath = "Home?locale=" + locale;
    String baseUrl = GWT.getModuleBaseURL();
    int index = baseUrl.indexOf("/mantle/");
    if (index >= 0) {
        newLocalePath = baseUrl.substring(0, index) + "/Home?locale=" + locale;
    }
    Window.Location.replace(newLocalePath);
}

From source file:org.pentaho.mantle.client.commands.SwitchThemeCommand.java

License:Open Source License

protected void performOperation(boolean feedback) {

    final HTML messageTextBox = new HTML(Messages.getString("confirmSwitchTheme.message"));
    final PromptDialogBox fileMoveToTrashWarningDialogBox = new PromptDialogBox(
            Messages.getString("confirmSwitchTheme.title"), Messages.getString("confirmSwitchTheme.ok"),
            Messages.getString("confirmSwitchTheme.cancel"), true, true);
    fileMoveToTrashWarningDialogBox.setContent(messageTextBox);

    final IDialogCallback callback = new IDialogCallback() {

        public void cancelPressed() {
        }/* w  ww. j  a  v a2s.c o  m*/

        public void okPressed() {
            final String url = GWT.getHostPageBaseURL() + "api/theme/set"; //$NON-NLS-1$
            RequestBuilder setThemeRequestBuilder = new RequestBuilder(RequestBuilder.POST, url);
            setThemeRequestBuilder.setHeader("accept", "text/plain");
            setThemeRequestBuilder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
            try {
                setThemeRequestBuilder.sendRequest(theme, new RequestCallback() {

                    public void onError(Request request, Throwable exception) {
                        // showError(exception);
                    }

                    public void onResponseReceived(Request request, Response response) {
                        // forcing a setTimeout to fix a problem in IE BISERVER-6385
                        Scheduler.get().scheduleDeferred(new Command() {
                            public void execute() {
                                Window.Location.reload();
                            }
                        });
                    }
                });
            } catch (RequestException e) {
                Window.alert(e.getMessage());
                // showError(e);
            }
        }
    };
    fileMoveToTrashWarningDialogBox.setCallback(callback);
    fileMoveToTrashWarningDialogBox.center();
}

From source file:org.pentaho.mantle.client.dialogs.folderchooser.FolderTree.java

License:Open Source License

public void fetchRepositoryFileTree(final AsyncCallback<RepositoryFileTree> callback, Integer depth,
        String filter, Boolean showHidden) {
    // notify listeners that we are about to talk to the server (in case there's anything they want to do
    // such as busy cursor or tree loading indicators)
    beforeFetchRepositoryFileTree();/*from w w w .  j a va 2s  . c o  m*/
    RequestBuilder builder = null;
    String url = ScheduleHelper.getFullyQualifiedURL() + "api/repo/files/:/tree?"; //$NON-NLS-1$
    if (depth == null) {
        depth = -1;
    }
    if (filter == null) {
        filter = "*"; //$NON-NLS-1$
    }
    if (showHidden == null) {
        showHidden = Boolean.FALSE;
    }
    url = url + "depth=" + depth + "&filter=" + filter + "&showHidden=" + showHidden + "&ts=" //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$
            + System.currentTimeMillis();
    builder = new RequestBuilder(RequestBuilder.GET, url);
    builder.setHeader("Accept", "application/json");
    builder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");

    RequestCallback innerCallback = new RequestCallback() {

        public void onError(Request request, Throwable exception) {
            Window.alert(exception.toString());
        }

        public void onResponseReceived(Request request, Response response) {
            if (response.getStatusCode() == Response.SC_OK) {
                String json = response.getText();
                System.out.println(json);

                final JsonToRepositoryFileTreeConverter converter = new JsonToRepositoryFileTreeConverter(
                        response.getText());
                final RepositoryFileTree fileTree = converter.getTree();

                String deletedFilesUrl = ScheduleHelper.getFullyQualifiedURL() + "api/repo/files/deleted?ts="
                        + System.currentTimeMillis();
                RequestBuilder deletedFilesRequestBuilder = new RequestBuilder(RequestBuilder.GET,
                        deletedFilesUrl);
                deletedFilesRequestBuilder.setHeader("Accept", "application/json");
                deletedFilesRequestBuilder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
                try {
                    deletedFilesRequestBuilder.sendRequest(null, new RequestCallback() {

                        public void onError(Request request, Throwable exception) {
                            onFetchRepositoryFileTree(fileTree, Collections.<RepositoryFile>emptyList());
                            Window.alert(exception.toString());
                        }

                        public void onResponseReceived(Request delRequest, Response delResponse) {
                            if (delResponse.getStatusCode() == Response.SC_OK) {
                                try {
                                    trashItems = JsonToRepositoryFileTreeConverter
                                            .getTrashFiles(delResponse.getText());
                                } catch (Throwable t) {
                                    // apparently this happens when you have no trash
                                }
                                onFetchRepositoryFileTree(fileTree, Collections.<RepositoryFile>emptyList());
                            } else {
                                onFetchRepositoryFileTree(fileTree, Collections.<RepositoryFile>emptyList());
                            }
                            if (callback != null) {
                                callback.onSuccess(fileTree);
                            }
                        }

                    });
                } catch (Exception e) {
                    onFetchRepositoryFileTree(fileTree, Collections.<RepositoryFile>emptyList());
                }
            } else {
                /*fileTree = new RepositoryFileTree();
                RepositoryFile errorFile = new RepositoryFile();
                errorFile.setFolder( true );
                errorFile.setName( "!ERROR!" );
                repositoryFileTree.setFile( errorFile );*/
            }
        }

    };
    try {
        builder.sendRequest(null, innerCallback);
    } catch (RequestException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

From source file:org.pentaho.mantle.client.dialogs.folderchooser.NewFolderCommand.java

License:Open Source License

protected void performOperation(boolean feedback) {

    final TextBox folderNameTextBox = new TextBox();
    folderNameTextBox.setTabIndex(1);/*from   w  ww .  ja v  a 2  s. c  om*/
    folderNameTextBox.setVisibleLength(40);

    VerticalPanel vp = new VerticalPanel();
    vp.add(new Label(Messages.getString("newFolderName"))); //$NON-NLS-1$
    vp.add(folderNameTextBox);
    final PromptDialogBox newFolderDialog = new PromptDialogBox(Messages.getString("newFolder"), //$NON-NLS-1$
            Messages.getString("ok"), Messages.getString("cancel"), false, true, vp); //$NON-NLS-1$ //$NON-NLS-2$
    newFolderDialog.setFocusWidget(folderNameTextBox);
    folderNameTextBox.setFocus(true);

    final IDialogCallback callback = new IDialogCallback() {

        public void cancelPressed() {
            newFolderDialog.hide();
        }

        public void okPressed() {
            if (!NameUtils.isValidFolderName(folderNameTextBox.getText())) {
                //event.setMessage( Messages.getString( "containsIllegalCharacters", folderNameTextBox.getText() ) );
                //EventBusUtil.EVENT_BUS.fireEvent( event );
                MessageDialogBox dialogBox = new MessageDialogBox(Messages.getString("error"), //$NON-NLS-1$
                        Messages.getString("containsIllegalCharacters", folderNameTextBox.getText()), //$NON-NLS-1$
                        false, false, true);
                dialogBox.center();
                return;
            }

            solutionPath = parentFolder.getPath() + "/" + URL.encodePathSegment(folderNameTextBox.getText());

            String createDirUrl = contextURL + "api/repo/dirs/" + pathToId(solutionPath); //$NON-NLS-1$
            RequestBuilder createDirRequestBuilder = new RequestBuilder(RequestBuilder.PUT, createDirUrl);

            try {
                createDirRequestBuilder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
                createDirRequestBuilder.sendRequest("", new RequestCallback() {

                    @Override
                    public void onError(Request createFolderRequest, Throwable exception) {
                        MessageDialogBox dialogBox = new MessageDialogBox(Messages.getString("error"), //$NON-NLS-1$
                                Messages.getString("couldNotCreateFolder", folderNameTextBox.getText()), //$NON-NLS-1$
                                false, false, true);
                        dialogBox.center();
                        //event.setMessage( Messages.getString( "couldNotCreateFolder", folderNameTextBox.getText() ) );
                        //EventBusUtil.EVENT_BUS.fireEvent( event );
                    }

                    @Override
                    public void onResponseReceived(Request createFolderRequest, Response createFolderResponse) {
                        if (createFolderResponse.getStatusText().equalsIgnoreCase("OK")) { //$NON-NLS-1$
                            NewFolderCommand.this.callback.onHandle(solutionPath);
                            //new RefreshRepositoryCommand().execute( false );
                            //event.setMessage( "Success" );
                            FileChooserDialog.setIsDirty(Boolean.TRUE);
                            setBrowseRepoDirty(Boolean.TRUE);
                            //EventBusUtil.EVENT_BUS.fireEvent( event );
                        } else {

                            String errorMessage = StringUtils.isEmpty(createFolderResponse.getText())
                                    || Messages.getString(createFolderResponse.getText()) == null
                                            ? Messages.getString("couldNotCreateFolder", //$NON-NLS-1$
                                                    folderNameTextBox.getText()) : Messages.getString(createFolderResponse.getText(),
                                                    folderNameTextBox.getText());
                            MessageDialogBox dialogBox = new MessageDialogBox(Messages.getString("error"), //$NON-NLS-1$
                                    errorMessage, //$NON-NLS-2$
                                    false, false, true);
                            dialogBox.center();
                            /*event.setMessage(
                                StringUtils.isEmpty( createFolderResponse.getText() )
                                    || Messages.getString( createFolderResponse.getText() ) == null
                                    ? Messages.getString( "couldNotCreateFolder", folderNameTextBox.getText() ) //$NON-NLS-1$
                                    : Messages.getString( createFolderResponse.getText(), folderNameTextBox.getText() )
                            );
                            EventBusUtil.EVENT_BUS.fireEvent( event );
                            */
                        }
                    }

                });
            } catch (RequestException e) {
                Window.alert(e.getLocalizedMessage());
                /*event.setMessage( e.getLocalizedMessage() );
                EventBusUtil.EVENT_BUS.fireEvent( event );*/
            }

        }
    };
    newFolderDialog.setCallback(callback);
    newFolderDialog.center();
}

From source file:org.pentaho.mantle.client.dialogs.scheduling.NewScheduleDialog.java

License:Open Source License

protected void onOk() {
    String name = scheduleNameTextBox.getText();
    if (!NameUtils.isValidFileName(name)) {
        MessageDialogBox errorDialog = new MessageDialogBox(Messages.getString("error"),
                Messages.getString("prohibitedNameSymbols", name, NameUtils.reservedCharListForDisplay(" ")), //$NON-NLS-2$
                false, false, true); //$NON-NLS-2$
        errorDialog.center();/*ww  w . j  a  v a  2  s . c o m*/
        return;
    }

    // check if has parameterizable
    WaitPopup.getInstance().setVisible(true);
    String urlPath = URL.encodePathSegment(NameUtils.encodeRepositoryPath(filePath));

    RequestBuilder scheduleFileRequestBuilder;
    final boolean isXAction;

    if ((urlPath != null) && (urlPath.endsWith("xaction"))) {
        isXAction = true;
        scheduleFileRequestBuilder = new RequestBuilder(RequestBuilder.GET,
                ScheduleHelper.getFullyQualifiedURL() + "api/repos/" + urlPath + "/parameterUi");
    } else {
        isXAction = false;
        scheduleFileRequestBuilder = new RequestBuilder(RequestBuilder.GET,
                ScheduleHelper.getFullyQualifiedURL() + "api/repo/files/" + urlPath + "/parameterizable");
    }

    scheduleFileRequestBuilder.setHeader("accept", "text/plain");
    scheduleFileRequestBuilder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
    try {
        scheduleFileRequestBuilder.sendRequest(null, new RequestCallback() {

            public void onError(Request request, Throwable exception) {
                WaitPopup.getInstance().setVisible(false);
                MessageDialogBox dialogBox = new MessageDialogBox(Messages.getString("error"), //$NON-NLS-1$
                        exception.toString(), false, false, true);
                dialogBox.center();
            }

            public void onResponseReceived(Request request, Response response) {
                WaitPopup.getInstance().setVisible(false);
                if (response.getStatusCode() == Response.SC_OK) {
                    String responseMessage = response.getText();
                    boolean hasParams;

                    if (isXAction) {
                        int numOfInputs = StringUtils.countMatches(responseMessage, "<input");
                        int NumOfHiddenInputs = StringUtils.countMatches(responseMessage, "type=\"hidden\"");
                        hasParams = numOfInputs - NumOfHiddenInputs > 0 ? true : false;
                    } else {
                        hasParams = Boolean.parseBoolean(response.getText());
                    }

                    if (jsJob != null) {
                        jsJob.setJobName(scheduleNameTextBox.getText());
                        jsJob.setOutputPath(scheduleLocationTextBox.getText(), scheduleNameTextBox.getText());
                        if (recurrenceDialog == null) {
                            recurrenceDialog = new ScheduleRecurrenceDialog(NewScheduleDialog.this, jsJob,
                                    callback, hasParams, isEmailConfValid, ScheduleDialogType.SCHEDULER);
                        }
                    } else if (recurrenceDialog == null) {
                        recurrenceDialog = new ScheduleRecurrenceDialog(NewScheduleDialog.this, filePath,
                                scheduleLocationTextBox.getText(), scheduleNameTextBox.getText(), callback,
                                hasParams, isEmailConfValid);
                    } else {
                        recurrenceDialog.scheduleName = scheduleNameTextBox.getText();
                        recurrenceDialog.outputLocation = scheduleLocationTextBox.getText();
                    }
                    recurrenceDialog.setParentDialog(NewScheduleDialog.this);
                    recurrenceDialog.center();
                    NewScheduleDialog.super.onOk();
                }
            }
        });
    } catch (RequestException e) {
        WaitPopup.getInstance().setVisible(false);
        // showError(e);
    }
}

From source file:org.pentaho.mantle.client.dialogs.scheduling.OutputLocationUtils.java

License:Open Source License

public static void validateOutputLocation(final String outputLocation, final Command successCallback,
        final Command errorCallback) {

    if (StringUtils.isEmpty(outputLocation)) {
        return;/*w w w. j  av  a 2  s . c  o m*/
    }

    final String outputLocationPath = NameUtils.encodeRepositoryPath(outputLocation);
    final String url = ScheduleHelper.getFullyQualifiedURL() + "api/repo/files/" + outputLocationPath //$NON-NLS-1$
            + "/tree?depth=1";
    RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);
    // This header is required to force Internet Explorer to not cache values from the GET response.
    builder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
    try {
        builder.sendRequest(null, new RequestCallback() {
            public void onError(Request request, Throwable exception) {
                if (errorCallback != null) {
                    errorCallback.execute();
                }
            }

            public void onResponseReceived(Request request, Response response) {
                if (response.getStatusCode() == Response.SC_OK) {
                    if (successCallback != null) {
                        successCallback.execute();
                    }
                } else {
                    if (errorCallback != null) {
                        errorCallback.execute();
                    }
                }
            }
        });
    } catch (RequestException e) {
        if (errorCallback != null) {
            errorCallback.execute();
        }
    }
}

From source file:org.pentaho.mantle.client.dialogs.scheduling.ScheduleEditor.java

License:Open Source License

private void populateTimeZonePicker() {

    String url = ScheduleHelper.getFullyQualifiedURL() + "api/system/timezones"; //$NON-NLS-1$
    RequestBuilder timeZonesRequest = new RequestBuilder(RequestBuilder.GET, url);
    timeZonesRequest.setHeader("accept", "application/json"); //$NON-NLS-1$ //$NON-NLS-2$
    timeZonesRequest.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
    try {/*from   www.  j a  va 2  s .c  o  m*/
        timeZonesRequest.sendRequest(null, new RequestCallback() {

            @Override
            public void onResponseReceived(Request request, Response response) {
                timeZonePicker.clear();
                String responseText = response.getText();
                JSONValue value = JSONParser.parseLenient(responseText);
                JSONObject object = value.isObject();
                value = object.get("timeZones");
                JSONValue serverTZvalue = object.get("serverTzId");
                JSONString serverTZIdString = serverTZvalue.isString();
                String serverTZId = serverTZIdString.stringValue();
                object = value.isObject();
                value = object.get("entry");
                JSONArray timeZonesJSONArray = value.isArray();
                for (int i = 0; i < timeZonesJSONArray.size(); i++) {
                    JSONValue entryValue = timeZonesJSONArray.get(i);
                    JSONObject entryObject = entryValue.isObject();
                    JSONValue keyValue = entryObject.get("key");
                    JSONValue theValue = entryObject.get("value");
                    String key = keyValue.isString().stringValue();
                    String valueForKey = theValue.isString().stringValue();
                    timeZonePicker.addItem(valueForKey, key);
                }
                for (int i = 0; i < timeZonePicker.getItemCount(); i++) {
                    if (timeZonePicker.getValue(i).equalsIgnoreCase(serverTZId)) {
                        timeZonePicker.setSelectedIndex(i);
                        break;
                    }
                }
            }

            @Override
            public void onError(Request request, Throwable exception) {
                // TODO Auto-generated method stub

            }

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

From source file:org.pentaho.mantle.client.dialogs.scheduling.ScheduleHelper.java

License:Open Source License

public static void showScheduleDialog(final String fileNameWithPath, final IDialogCallback callback) {
    final SolutionFileActionEvent event = new SolutionFileActionEvent();
    event.setAction(ScheduleHelper.class.getName());
    try {/*from   w w w .  ja va  2 s .  c  om*/

        final String url = ScheduleHelper.getFullyQualifiedURL() + "api/mantle/isAuthenticated"; //$NON-NLS-1$
        RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, url);
        requestBuilder.setHeader("accept", "text/plain");
        requestBuilder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
        requestBuilder.sendRequest(null, new RequestCallback() {

            public void onError(Request request, Throwable caught) {
                MantleLoginDialog.performLogin(new AsyncCallback<Boolean>() {

                    public void onFailure(Throwable caught) {
                    }

                    public void onSuccess(Boolean result) {
                        showScheduleDialog(fileNameWithPath, callback);
                    }

                });
            }

            public void onResponseReceived(Request request, Response response) {
                String moduleBaseURL = GWT.getModuleBaseURL();
                String moduleName = GWT.getModuleName();
                final String contextURL = moduleBaseURL.substring(0, moduleBaseURL.lastIndexOf(moduleName));

                RequestBuilder emailValidRequest = new RequestBuilder(RequestBuilder.GET,
                        contextURL + "api/emailconfig/isValid");
                emailValidRequest.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
                emailValidRequest.setHeader("accept", "text/plain");
                try {
                    emailValidRequest.sendRequest(null, new RequestCallback() {

                        public void onError(Request request, Throwable exception) {
                            MessageDialogBox dialogBox = new MessageDialogBox(Messages.getString("error"), //$NON-NLS-1$
                                    exception.toString(), false, false, true);
                            dialogBox.center();
                            event.setMessage(exception.getLocalizedMessage());
                            EventBusUtil.EVENT_BUS.fireEvent(event);
                        }

                        public void onResponseReceived(Request request, Response response) {
                            if (response.getStatusCode() == Response.SC_OK) {
                                final boolean isEmailConfValid = Boolean.parseBoolean(response.getText());

                                NewScheduleDialog dialog = new NewScheduleDialog(fileNameWithPath, callback,
                                        isEmailConfValid);
                                dialog.center();

                                event.setMessage("Open");
                                EventBusUtil.EVENT_BUS.fireEvent(event);
                            }
                        }
                    });
                } catch (RequestException e) {
                    MessageDialogBox dialogBox = new MessageDialogBox(Messages.getString("error"), e.toString(), //$NON-NLS-1$
                            false, false, true);
                    dialogBox.center();
                    event.setMessage(e.getLocalizedMessage());
                    EventBusUtil.EVENT_BUS.fireEvent(event);
                }
            }

        });
    } catch (RequestException e) {
        Window.alert(e.getMessage());
        event.setMessage(e.getLocalizedMessage());
        EventBusUtil.EVENT_BUS.fireEvent(event);
    }
}