fi.semantum.strategia.widget.EnumerationDatatype.java Source code

Introduction

Here is the source code for fi.semantum.strategia.widget.EnumerationDatatype.java

Source

/*******************************************************************************
 * Copyright (c) 2014 Ministry of Transport and Communications (Finland).
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Semantum Oy - initial API and implementation
 *******************************************************************************/
package fi.semantum.strategia.widget;

import java.util.List;
import java.util.TreeMap;

import com.vaadin.data.Property.ValueChangeEvent;
import com.vaadin.data.Property.ValueChangeListener;
import com.vaadin.ui.AbstractField;
import com.vaadin.ui.ComboBox;
import com.vaadin.ui.themes.ValoTheme;

import fi.semantum.strategia.Main;
import fi.semantum.strategia.Utils.AbstractCommentCallback;
import fi.semantum.strategia.Utils.CommentCallback;

public class EnumerationDatatype extends Datatype {

    private static final long serialVersionUID = -9212610888611727972L;

    private List<String> enumeration;
    private EnumeratedTrafficValuation defaultValuation;

    protected EnumerationDatatype(Database database, String id, List<String> enumeration, String traffic) {
        super(database, id, id);
        this.enumeration = enumeration;
        TreeMap<Object, String> values = new TreeMap<Object, String>();
        assert (enumeration.size() == traffic.length());
        for (int i = 0; i < enumeration.size(); i++) {
            String value = enumeration.get(i);
            char c = traffic.charAt(i);
            if (c == 'p')
                values.put(value, TrafficValuation.RED);
            else if (c == 'k')
                values.put(value, TrafficValuation.YELLOW);
            else if (c == 'v')
                values.put(value, TrafficValuation.GREEN);
            else
                throw new IllegalArgumentException("traffic=" + traffic);
        }
        defaultValuation = new EnumeratedTrafficValuation(values);
    }

    public List<String> getValues() {
        return enumeration;
    }

    public void replace(EnumerationDatatype other) {
        this.enumeration = other.enumeration;
        this.defaultValuation = other.defaultValuation;
    }

    @Override
    public AbstractField<?> getEditor(final Main main, final Base base, final Indicator indicator,
            final boolean forecast, final CommentCallback callback) {

        final Object value = forecast ? indicator.getForecast() : indicator.getValue();

        final ComboBox combo = new ComboBox();
        for (String s : enumeration) {
            combo.addItem(s);
        }

        combo.setStyleName(ValoTheme.COMBOBOX_TINY);
        combo.select(value);
        combo.setNullSelectionAllowed(false);
        combo.setWidth("100%");

        if (main.canWrite(base)) {
            combo.addValueChangeListener(new ValueChangeListener() {

                private static final long serialVersionUID = 3547126051252580446L;

                @Override
                public void valueChange(ValueChangeEvent event) {
                    indicator.updateWithComment(main, base, combo.getValue(), forecast,
                            new AbstractCommentCallback() {

                                @Override
                                public void canceled() {
                                    combo.select(value);
                                    if (callback != null)
                                        callback.canceled();
                                }

                                @Override
                                public void runWithComment(String shortComment, String comment) {
                                    if (callback != null)
                                        callback.runWithComment(shortComment, comment);
                                }

                            });
                }

            });
        } else {
            combo.setReadOnly(true);
        }

        return combo;

    }

    @Override
    public TrafficValuation getDefaultTrafficValuation() {
        return defaultValuation;
    }

    @Override
    public Object getDefaultValue() {
        return enumeration.get(0);
    }

    @Override
    public Object getDefaultForecast() {
        return enumeration.get(0);
    }

    @Override
    public String format(Object value) {
        if (value == null)
            return "<arvoa ei ole asetettu>";
        return value.toString();
    }

}