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Cristal-ise is a description-driven software platform originally developed to track the construction of the CMS ECAL detector of the LHC at CERN. This is its core library, known as the kernel, which manages business objects called Items. Items are entirely configured from data, called descriptions, held in other Items. Every change of a state in an Item is a consequence of an execution of an activity in that Item's lifecycle, meaning that Cristal-ise applications are completely traceable, even in their design. It also supports extensive versioning of Item description data, giving the system a high level of flexibility.

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/**
 * This file is part of the CRISTAL-iSE kernel.
 * Copyright (c) 2001-2015 The CRISTAL Consortium. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation; either version 3 of the License, or (at
 * your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 *
 * http://www.fsf.org/licensing/licenses/lgpl.html
 */
package org.cristalise.kernel.lifecycle.renderer;

import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Paint;
import java.util.ArrayList;

import org.cristalise.kernel.common.GTimeStamp;
import org.cristalise.kernel.common.InvalidDataException;
import org.cristalise.kernel.graph.model.Vertex;
import org.cristalise.kernel.graph.renderer.DefaultVertexRenderer;
import org.cristalise.kernel.lifecycle.instance.Activity;
import org.cristalise.kernel.utils.DateUtility;

/**
 * Renders an elementary Activity instance
 */
public class ActivityRenderer extends DefaultVertexRenderer {

    public ActivityRenderer() {
        super();
    }

    private Paint mActivePaint       = new Color(100, 255, 100);
    private Paint mActiveCompPaint   = new Color(100, 255, 255);
    private Paint mInactivePaint     = new Color(255, 255, 255);
    private Paint mInactiveCompPaint = new Color(200, 200, 255);
    private Paint mErrorPaint        = new Color(255, 50, 0);
    private Paint mTextPaint         = Color.black;

    /**
     * Draws the Activity as a 3D rectangle without borders, with text lines for Name, DefinitionName, State, WaitTime and errors
     */
    @Override
    public void draw(Graphics2D g2d, Vertex vertex) {
        Activity activity = (Activity) vertex;
        boolean hasError = !activity.verify();

        drawOutline3DRect(g2d, vertex, getActColor(activity, hasError));

        // String description = activity.getDescription();
        ArrayList linesOfText = new ArrayList();
        String type = activity.getTypeName();

        if (type != null) linesOfText.add("(" + type + ")");

        linesOfText.add(activity.getName());

        if (hasError) {
            linesOfText.add(activity.getErrors());
        }
        else {
            String stateName = "Invalid State";
            try {
                stateName = activity.getStateName();
            }
            catch (InvalidDataException | NullPointerException ex) {}

            linesOfText.add(stateName + (" " + getWaitTime(activity.getStateDate())));
        }

        drawLinesOfTexts(g2d, vertex, linesOfText, mTextPaint);
    }

    private Paint getActColor(Activity activity, boolean hasError) {
        boolean active = activity.getActive();
        boolean isComposite = activity.getIsComposite();

        if (hasError)
            return mErrorPaint;
        else if (active)
            if (isComposite) return mActiveCompPaint;
            else             return mActivePaint;
        else if (isComposite)
            return mInactiveCompPaint;
        else
            return mInactivePaint;
    }

    private static String getWaitTime(GTimeStamp date) {
        GTimeStamp now = new GTimeStamp();

        DateUtility.setToNow(now);

        long diff = DateUtility.diff(now, date);
        long secondes = diff % 60;
        long minutes  = (diff / 60) % 60;
        long hours    = (diff / 3600) % 24;
        long days     = (diff / 3600 / 24);

        if (days > 0)    return days    + " " + "d" + " " + hours   + " " + "h";
        if (hours > 0)   return hours   + " " + "h" + " " + minutes + " " + "min";
        if (minutes > 0) return minutes + " " + "min";

        return secondes + " " + "sec";
    }
}