src/org/traccar/web/client/controller/MapController.java


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package org.traccar.web.client.controller;

import java.util.Collections;
import java.util.Comparator;
import java.util.LinkedList;
import java.util.List;

import org.traccar.web.client.Application;
import org.traccar.web.client.view.MapView;
import org.traccar.web.shared.model.Device;
import org.traccar.web.shared.model.Position;

import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.sencha.gxt.widget.core.client.ContentPanel;

public class MapController implements ContentController {

    private static final int UPDATE_INTERVAL = 15000;

    private MapView mapView;

    public MapController() {
        mapView = new MapView();
    }

    @Override
    public ContentPanel getView() {
        return mapView.getView();
    }

    private Timer updateTimer;

    @Override
    public void run() {
        updateTimer = new Timer() {
            @Override
            public void run() {
                update();
            }
        };
        update();
    }

    public void update() {
        updateTimer.cancel();
        Application.getDataService().getLatestPositions(new AsyncCallback<List<Position>>() {
            @Override
            public void onSuccess(List<Position> result) {
                mapView.showLatestPositions(result);
                updateTimer.schedule(UPDATE_INTERVAL);
            }
            @Override
            public void onFailure(Throwable caught) {
                updateTimer.schedule(UPDATE_INTERVAL);
            }
        });
    }

    public void selectDevice(Device device) {
        mapView.selectDevice(device);
    }

    public void showArchivePositions(List<Position> positions) {
        List<Position> sortedPositions = new LinkedList<Position>(positions);
        Collections.sort(sortedPositions, new Comparator<Position>() {
            @Override
            public int compare(Position o1, Position o2) {
                return o1.getTime().compareTo(o2.getTime());
            }
        });
        mapView.showArchivePositions(sortedPositions);
    }

    public void selectArchivePosition(Position position) {
        mapView.selectArchivePosition(position);
    }

}