com.google.developers.gdgfirenze.admin.client.SensormixAdminUi.java Source code

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Here is the source code for com.google.developers.gdgfirenze.admin.client.SensormixAdminUi.java

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/*
 * Copyright 2013, Cristiano Costantini, Giuseppe Gerla, Michele Ficarra, Sergio Ciampi, Stefano
 * Cigheri.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.developers.gdgfirenze.admin.client;

import com.google.developers.gdgfirenze.admin.client.event.NumberDetectedEvent;
import com.google.developers.gdgfirenze.admin.client.event.NumberDetectedEvent.TypeOfNumberDetected;
import com.google.developers.gdgfirenze.admin.client.service.GwtSensormixServiceAsync;
import com.google.developers.gdgfirenze.admin.client.tree.SensorTreeModel;
import com.google.developers.gdgfirenze.model.Sensor;

import com.google.gwt.core.client.GWT;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.cellview.client.CellBrowser;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.view.client.TreeViewModel;
import com.google.web.bindery.event.shared.EventBus;

import java.util.List;

/**
 * The Class SensormixAdminUi.
 */
public class SensormixAdminUi extends Composite {

    /**
     * The Interface SensormixAdminUiUiBinder.
     */
    interface SensormixAdminUiUiBinder extends UiBinder<Widget, SensormixAdminUi> {
    }

    private static final int PERIODREFRESHING = 5000;

    /** The ui binder. */
    private static SensormixAdminUiUiBinder uiBinder = GWT.create(SensormixAdminUiUiBinder.class);

    /** The navigator. */
    @UiField(provided = true)
    CellBrowser navigator;

    /** The num of samples. */
    @UiField
    Label numOfSamples;

    /** The num of sensors. */
    @UiField
    Label numOfSensors;

    private GwtSensormixServiceAsync sensormixService;

    private EventBus eventBus;
    private static boolean init = true;

    /**
     * Instantiates a new sensormix admin ui.
     * 
     * @param eventBus
     *          the event bus
     * @param sensormixService
     */
    public SensormixAdminUi(EventBus eventBus, GwtSensormixServiceAsync sensormixService) {
        this.sensormixService = sensormixService;
        this.eventBus = eventBus;
        final TreeViewModel model = new SensorTreeModel(eventBus, sensormixService);
        navigator = new CellBrowser.Builder<Object>(model, null).build();
        navigator.setDefaultColumnWidth(600);
        initWidget(uiBinder.createAndBindUi(this));
        final Timer timer = new Timer() {
            @Override
            public void run() {
                refreshHeaderCounters();
            }
        };
        timer.scheduleRepeating(PERIODREFRESHING);
    }

    private void refreshHeaderCounters() {
        sensormixService.getSensors(null, null, null, new AsyncCallback<List<Sensor>>() {

            @Override
            public void onFailure(Throwable caught) {
                // TODO Error handling
                caught.printStackTrace();
            }

            @Override
            public void onSuccess(List<Sensor> result) {
                if (result != null) {
                    if (!init) {
                        if (numOfSensors.getText().equals("" + result.size())) {
                            eventBus.fireEventFromSource(
                                    new NumberDetectedEvent(TypeOfNumberDetected.SENSOR, result.size()), this);
                        }
                    }
                    init = false;
                    numOfSensors.setText("" + result.size());
                }
            }
        });

        sensormixService.countSamples(null, null, null, null, new AsyncCallback<Long>() {

            @Override
            public void onFailure(Throwable caught) {
                // TODO Error handling
                caught.printStackTrace();
            }

            @Override
            public void onSuccess(Long result) {
                if (result != null) {
                    numOfSamples.setText("" + result);
                }
            }
        });
    }

}