ChartPresenterImpl.java

/*
* Name: BarChartPresenter.java
* Package: it.kaizenteam.app.presenter
* Location: Sources/Applicazione/main/java/it/kaizenteam/app/presenter
* Date: 2015-05-23
* Version: v1.00
*
* History:
* =================================================================
* Version	Date	Programmer	Changes
* =================================================================
* v1.00 2015-06-15  Carlon Chiara  Approved
* =================================================================
* v0.04 2015-06-02  Bigarella Chiara  Verify
* =================================================================
* v0.03 2015-05-30  Moretto Alessandro Edit
* =================================================================
* v0.02 2015-05-26  Moretto Alessandro   Verify
* =================================================================
* v0.01 2015-05-23  Dal Bianco Davide  Creation
* =================================================================
*
*/

package it.kaizenteam.app.presenter;


import java.util.Observable;
import java.util.Observer;
import it.kaizenteam.app.model.NorrisChart.ChartModel;
import it.kaizenteam.app.model.NorrisChart.ChartSettings;
import it.kaizenteam.app.model.Service.ChartReceiverImpl;

/**
 * This class represents a general presenter of a view of a chart. In this class it is saved the reference chart (ChartModel).
 * This class implements Observer with the purpose to receive data from the socket (using the Package Service).
 * It can ask to ChartUpdater the values of a chart or request to receive the various updates of a chart.
 */
public abstract class ChartPresenterImpl extends PresenterImpl implements Observer {
    protected ChartModel chart;
    protected String id;
    /**
     * This method is the constructor of the class. It is only accessible to subclasses in the creation of the subobject.
     */
    protected ChartPresenterImpl(){}

    /**
     * This method is abstract and has the task of updating the data model in case of data update and finally show the view this data updated.
     * @param observable
     * @param data
     */
    @Override
    public abstract void update(Observable observable, Object data);

    /**
     * This method is abstract and has the task to change the view by using the settings the chart.
     * @param settings
     */
    protected abstract void applySettings(ChartSettings settings);


    public void onPause() {
        ChartReceiverImpl.getInstance().stopUpdateEvent();
    }

    /**
     * This method asks tha chart and wait the data
     * @param id
     */
    public void setChart(String id) {
        ((Observable) ChartReceiverImpl.getInstance()).addObserver(this);
        this.id=id;
        ChartReceiverImpl.getInstance().getChart(id);
    }
}