org.opennms.features.topology.plugins.browsers.AlarmIdColumnLinkGenerator.java Source code

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Here is the source code for org.opennms.features.topology.plugins.browsers.AlarmIdColumnLinkGenerator.java

Source

/*******************************************************************************
 * This file is part of OpenNMS(R).
 *
 * Copyright (C) 2013-2014 The OpenNMS Group, Inc.
 * OpenNMS(R) is Copyright (C) 1999-2014 The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published
 * by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * OpenNMS(R) 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with OpenNMS(R).  If not, see:
 *      http://www.gnu.org/licenses/
 *
 * For more information contact:
 *     OpenNMS(R) Licensing <license@opennms.org>
 *     http://www.opennms.org/
 *     http://www.opennms.com/
 *******************************************************************************/

package org.opennms.features.topology.plugins.browsers;

import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;

import org.opennms.features.topology.api.support.DialogWindow;
import org.opennms.features.topology.api.support.InfoWindow;
import org.opennms.features.topology.api.support.InfoWindow.LabelCreator;
import org.opennms.netmgt.dao.api.AlarmDao;
import org.opennms.netmgt.model.OnmsAlarm;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.vaadin.data.Property;
import com.vaadin.server.Page;
import com.vaadin.server.VaadinServlet;
import com.vaadin.ui.Button;
import com.vaadin.ui.Table;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.Table.ColumnGenerator;
import com.vaadin.ui.themes.BaseTheme;

public class AlarmIdColumnLinkGenerator implements ColumnGenerator {
    private static final long serialVersionUID = 621311104480258016L;
    private static final Logger LOG = LoggerFactory.getLogger(AlarmIdColumnLinkGenerator.class);
    private final String alarmIdPropertyName;
    private final AlarmDao alarmDao;

    /**
     * @param alarmIdPropertyName Property name of the alarm Id property (e.g. "id")
     */
    public AlarmIdColumnLinkGenerator(final AlarmDao alarmDao, final String alarmIdPropertyName) {
        this.alarmIdPropertyName = alarmIdPropertyName;
        this.alarmDao = alarmDao;
    }

    @Override
    public Object generateCell(final Table source, Object itemId, Object columnId) {
        if (source == null)
            return null; // no source
        Property<Integer> alarmIdProperty = source.getContainerProperty(itemId, alarmIdPropertyName);
        final Integer alarmId = alarmIdProperty.getValue();
        if (alarmId == null)
            return null; // no value

        // create Link
        Button button = new Button("" + alarmId);
        button.setStyleName(BaseTheme.BUTTON_LINK);
        button.addClickListener(new ClickListener() {
            private static final long serialVersionUID = 3698209256202413810L;

            @Override
            public void buttonClick(ClickEvent event) {
                // try if alarm is there, otherwise show information dialog
                OnmsAlarm alarm = alarmDao.get(alarmId);
                if (alarm == null) {
                    new DialogWindow(source.getUI(), "Alarm does not exist!",
                            "The alarm information cannot be shown. \nThe alarm does not exist anymore. \n\nPlease refresh the Alarm Table.");
                    return;
                }

                // alarm still exists, show alarm details
                final URI currentLocation = Page.getCurrent().getLocation();
                final String contextRoot = VaadinServlet.getCurrent().getServletContext().getContextPath();
                final String redirectFragment = contextRoot + "/alarm/detail.htm?quiet=true&id=" + alarmId;
                LOG.debug("alarm {} clicked, current location = {}, uri = {}", alarmId, currentLocation,
                        redirectFragment);

                try {
                    source.getUI().addWindow(
                            new InfoWindow(new URL(currentLocation.toURL(), redirectFragment), new LabelCreator() {

                                @Override
                                public String getLabel() {
                                    return "Alarm Info " + alarmId;
                                }
                            }));
                } catch (MalformedURLException e) {
                    LOG.error(e.getMessage(), e);
                }
            }
        });
        return button;
    }
}