org.opennms.features.vaadin.pmatrix.ui.PmatrixApplication.java Source code

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Here is the source code for org.opennms.features.vaadin.pmatrix.ui.PmatrixApplication.java

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/*******************************************************************************
 * This file is part of OpenNMS(R).
 *
 * Copyright (C) 2010-2012 The OpenNMS Group, Inc.
 * OpenNMS(R) is Copyright (C) 1999-2012 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 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 General Public License for more details.
 *
 * You should have received a copy of the GNU 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.vaadin.pmatrix.ui;

import java.text.DecimalFormat;
import java.util.Map.Entry;

import org.springframework.beans.factory.annotation.Autowired;

import com.vaadin.annotations.PreserveOnRefresh;
import com.vaadin.annotations.Theme;
import com.vaadin.server.VaadinRequest;
import com.vaadin.server.VaadinServlet;
import com.vaadin.shared.ui.label.ContentMode;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.Component;
import com.vaadin.ui.Label;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@Theme("pmatrixtheme")
@SuppressWarnings("serial")
@org.springframework.stereotype.Component
@org.springframework.context.annotation.Scope("prototype")
//@PreserveOnRefresh // sets UI session scoped
public class PmatrixApplication extends UI {
    private static final Logger LOG = LoggerFactory.getLogger(PmatrixApplication.class);

    private UiComponentFactory uiComponentFactory = null;

    // private PmatrixTable pmatrixTable = null;

    /**
     * @return the uiComponentFactory
     */
    public UiComponentFactory getUiComponentFactory() {
        return uiComponentFactory;
    }

    /**
     * @param uiComponentFactory
     *            the uiComponentFactory to set
     */
    @Autowired
    public void setUiComponentFactory(UiComponentFactory uiComponentFactory) {
        this.uiComponentFactory = uiComponentFactory;
    }

    // public PmatrixTable getPmatrixTable() {
    // return pmatrixTable;
    // }
    //
    // @Autowired
    // public void setPmatrixTable(PmatrixTable pmatrixTable) {
    // this.pmatrixTable = pmatrixTable;
    // }

    public static class Servlet extends VaadinServlet {
    }

    //TODO https://vaadin.com/book/vaadin7/-/page/application.lifecycle.html

    @Override
    protected void init(VaadinRequest request) {
        final VerticalLayout layout = new VerticalLayout();
        layout.setWidth("-1px");
        layout.setHeight("-1px");
        layout.setDefaultComponentAlignment(Alignment.TOP_LEFT);
        layout.setMargin(true);
        setContent(layout);

        //used to test that detach events are happening
        addDetachListener(new DetachListener() {
            @Override
            public void detach(DetachEvent event) {
                LOG.debug("Pmatrix UI instance detached:" + this);
            }
        });

        Component uiComponent = uiComponentFactory.getUiComponent(request);

        if (uiComponent == null) {

            StringBuilder sb = new StringBuilder(
                    "Error: Cannot create the UI because the URL request parameters are not recognised<BR>\n"
                            + "you need to provide atleast '?" + UiComponentFactory.COMPONENT_REQUEST_PARAMETER
                            + "=" + UiComponentFactory.DEFAULT_COMPONENT_REQUEST_VALUE + "'<BR>\n"
                            + "Parameters passed in URL:<BR>\n");
            for (Entry<String, String[]> entry : request.getParameterMap().entrySet()) {
                sb.append("parameter:'" + entry.getKey() + "' value:'");
                for (String s : entry.getValue()) {
                    sb.append("{" + s + "}");
                }
                sb.append("'<BR>\n");
            }
            Label label = new Label();
            label.setWidth("600px");
            label.setContentMode(ContentMode.HTML);
            label.setValue(sb.toString());
            layout.addComponent(label);

        } else {
            layout.addComponent(uiComponent);

            // refresh interval to apply to the UI
            int pollInterval = uiComponentFactory.getRefreshRate();
            setPollInterval(pollInterval);

            // display poll interval in seconds
            DecimalFormat dformat = new DecimalFormat("##.##");
            Label label = new Label();
            label.setCaption("(refresh rate:" + dformat.format(pollInterval / 1000) + " seconds)");
            layout.addComponent(label);
        }

    }
}