001    /**
002     * planningtool - A Planning Tool with Critiquing Support.
003     * 
004     * Copyright (C) 2006 olale
005    
006     * This program is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU General Public License
008     * as published by the Free Software Foundation; either version 2
009     * of the License, or (at your option) any later version.
010    
011     * This program is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014     * GNU General Public License for more details.
015    
016     * You should have received a copy of the GNU General Public License
017     * along with this program; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
019    
020     * Contact information: 
021     * E-mail: olale@ida.liu.se
022     *         olale@lysator.liu.se
023     */
024    package se.liu.ida.critiquer.scenarios.standard;
025    
026    import java.io.PrintStream;
027    import java.lang.reflect.Constructor;
028    import java.lang.reflect.InvocationTargetException;
029    import java.util.ArrayList;
030    import java.util.HashMap;
031    
032    import javax.swing.JFrame;
033    import javax.swing.JOptionPane;
034    
035    import se.liu.ida.critiquer.activities.Activity;
036    import se.liu.ida.critiquer.activities.ActivityFactory;
037    import se.liu.ida.critiquer.activities.ToplevelActivity;
038    import se.liu.ida.critiquer.constraints.ConstraintFactory;
039    
040    public class StandardActivityFactory implements ActivityFactory {
041    
042            private interface ActivityCreator {
043    
044                    Activity createActivity();
045    
046            }
047    
048            private HashMap<String, ActivityCreator> activityTemplates;
049    
050            public ArrayList<Class<? extends Activity>> getActivityClasses() {
051                    ArrayList<Class<? extends Activity>> activityClasses = new ArrayList<Class<? extends Activity>>();
052                    activityClasses.add(ToplevelActivity.class);
053                    activityClasses.add(DefaultActivity.class);
054                    activityClasses.add(DispatchActivity.class);
055                    activityClasses.add(FirstAidActivity.class);
056                    activityClasses.add(RecoverActivity.class);
057                    activityClasses.add(RoadBlockActivity.class);
058                    return activityClasses;
059            }
060    
061            public StandardActivityFactory() {
062                    activityTemplates = new HashMap<String, ActivityCreator>();
063    
064                    activityTemplates.put("Rescue", new ActivityCreator() {
065    
066                            public Activity createActivity() {
067                                    return createRescueActivity();
068                            }
069    
070                    });
071                    activityTemplates.put("Block roads", new ActivityCreator() {
072    
073                            public Activity createActivity() {
074                                    return createRoadBlockActivity();
075                            }
076    
077                    });
078            }
079    
080            public Activity selectActivityType(JFrame parentFrame) {
081                    String message = "Select activity type";
082                    String selectedKey = (String) JOptionPane.showInputDialog(parentFrame,
083                                    message,
084                                    message,
085                                    JOptionPane.PLAIN_MESSAGE,
086                                    null,
087                                    activityTemplates.keySet().toArray(),
088                                    null);
089                    if (selectedKey != null) {
090                            return activityTemplates.get(selectedKey).createActivity();
091                    } else {
092                            return null;
093                    }
094            }
095    
096            private Activity createRoadBlockActivity() {
097                    Activity roadBlockActivity = new DefaultActivity(null);
098                    new DispatchActivity(roadBlockActivity);
099                    new RoadBlockActivity(roadBlockActivity);
100                    return roadBlockActivity;
101            }
102    
103            private Activity createRescueActivity() {
104                    Activity rescueActivity = new DefaultActivity(null);
105                    new DispatchActivity(rescueActivity);
106                    new FirstAidActivity(rescueActivity);
107                    new RecoverActivity(rescueActivity);
108                    return rescueActivity;
109            }
110    
111            /**
112         * Create an activity using the constructor which takes only a parent
113         * activity and pass <code>null</code> as reference to the parent.
114         * 
115         */
116            @SuppressWarnings("unchecked")
117            public <T extends Activity> T createActivity(Class<T> activityClass) {
118                    T activity = null;
119                    PrintStream debug = System.err;
120                    if (Activity.class.isAssignableFrom(activityClass)) {
121                            try {
122                                    Constructor constructor = activityClass.getConstructor(new Class[] { Activity.class });
123                                    activity = (T) constructor.newInstance(new Object[] { null });
124                                    ConstraintFactory.connectStartToEnd(activity);
125                            } catch (SecurityException e) {
126                                    // TODO Auto-generated catch block
127                                    e.printStackTrace();
128                            } catch (IllegalArgumentException e) {
129                                    // TODO Auto-generated catch block
130                                    e.printStackTrace();
131                            } catch (NoSuchMethodException e) {
132                                    // TODO Auto-generated catch block
133                                    e.printStackTrace();
134                            } catch (InstantiationException e) {
135                                    // TODO Auto-generated catch block
136                                    e.printStackTrace();
137                            } catch (IllegalAccessException e) {
138                                    // TODO Auto-generated catch block
139                                    e.printStackTrace();
140                            } catch (InvocationTargetException e) {
141                                    debug.println("ActivityNode: Constructor for " + activityClass.getSimpleName()
142                                                              + " threw exception "
143                                                              + e.getCause().getMessage());
144                                    debug.println("Stack trace of cause: ");
145                                    e.getCause().printStackTrace(debug);
146    
147                            }
148                    } else {
149                            debug.println("Trying to initialize non-activity class: " + activityClass.getSimpleName());
150                    }
151                    return activity;
152            }
153    
154    }