org.pentaho.mantle.client.workspace.SchedulesPerspectivePanel.java Source code

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Here is the source code for org.pentaho.mantle.client.workspace.SchedulesPerspectivePanel.java

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/*!
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * Copyright (c) 2002-2013 Pentaho Corporation..  All rights reserved.
 */

package org.pentaho.mantle.client.workspace;

import com.google.gwt.core.client.GWT;
import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.Response;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.user.cellview.client.CellTable;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import org.pentaho.mantle.client.messages.Messages;

public class SchedulesPerspectivePanel extends SimplePanel {
    static final int PAGE_SIZE = 25;
    private static SchedulesPerspectivePanel instance = new SchedulesPerspectivePanel();

    private VerticalPanel wrapperPanel;
    private SchedulesPanel schedulesPanel;
    private BlockoutPanel blockoutPanel;

    private boolean isScheduler;
    private boolean isAdmin;

    public static SchedulesPerspectivePanel getInstance() {
        return instance;
    }

    public SchedulesPerspectivePanel() {
        try {
            final String url = GWT.getHostPageBaseURL() + "api/repo/files/canAdminister"; //$NON-NLS-1$
            RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, url);
            requestBuilder.setHeader("accept", "text/plain"); //$NON-NLS-1$ //$NON-NLS-2$
            requestBuilder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT"); //$NON-NLS-1$ //$NON-NLS-2$
            requestBuilder.sendRequest(null, new RequestCallback() {

                public void onError(Request request, Throwable caught) {
                    isAdmin = false;
                    isScheduler = false;
                }

                public void onResponseReceived(Request request, Response response) {
                    isAdmin = "true".equalsIgnoreCase(response.getText()); //$NON-NLS-1$

                    try {
                        final String url2 = GWT.getHostPageBaseURL() + "api/scheduler/canSchedule"; //$NON-NLS-1$
                        RequestBuilder requestBuilder2 = new RequestBuilder(RequestBuilder.GET, url2);
                        requestBuilder2.setHeader("accept", "text/plain"); //$NON-NLS-1$ //$NON-NLS-2$
                        requestBuilder2.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT");
                        requestBuilder2.sendRequest(null, new RequestCallback() {

                            public void onError(Request request, Throwable caught) {
                                isScheduler = false;
                                createUI();

                            }

                            public void onResponseReceived(Request request, Response response) {
                                isScheduler = "true".equalsIgnoreCase(response.getText()); //$NON-NLS-1$
                                createUI();
                            }

                        });
                    } catch (RequestException e) {
                        Window.alert(e.getMessage());
                    }
                }
            });
        } catch (RequestException e) {
            Window.alert(e.getMessage());
        }

    }

    private void createUI() {

        this.setStyleName("schedulerPerspective"); //$NON-NLS-1$

        wrapperPanel = new VerticalPanel();

        String schedulesLabelStr = Messages.getString("mySchedules"); //$NON-NLS-1$
        if (isAdmin) {
            schedulesLabelStr = Messages.getString("manageSchedules"); //$NON-NLS-1$
        }

        Label schedulesLabel = new Label(schedulesLabelStr);
        schedulesLabel.setStyleName("workspaceHeading"); //$NON-NLS-1$
        wrapperPanel.add(schedulesLabel);

        schedulesPanel = new SchedulesPanel(isAdmin, isScheduler);
        schedulesPanel.setStyleName("schedulesPanel"); //$NON-NLS-1$
        schedulesPanel.addStyleName("schedules-panel-wrapper"); //$NON-NLS-1$
        wrapperPanel.add(schedulesPanel);

        blockoutPanel = new BlockoutPanel(isAdmin);
        blockoutPanel.setStyleName("schedulesPanel"); //$NON-NLS-1$
        blockoutPanel.addStyleName("blockout-schedules-panel-wrapper"); //$NON-NLS-1$
        wrapperPanel.add(blockoutPanel);

        SimplePanel sPanel = new SimplePanel();
        sPanel.add(wrapperPanel);
        sPanel.setStylePrimaryName("schedulerPerspective-wrapper"); //$NON-NLS-1$
        add(sPanel);

    }

    public void refresh() {
        schedulesPanel.refresh();
        blockoutPanel.refresh();
    }

    public interface CellTableResources extends CellTable.Resources {
        @Override
        public ImageResource cellTableSortAscending();

        @Override
        public ImageResource cellTableSortDescending();

        /**
         * The styles used in this widget.
         */
        @Source("org/pentaho/mantle/client/workspace/CellTable.css")
        public CellTable.Style cellTableStyle();
    }
}