org/jsampler/LostFilesModel.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2008 Grigor Iliev <grigor@grigoriliev.com>
 *
 *   This file is part of JSampler.
 *
 *   JSampler is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2
 *   as published by the Free Software Foundation.
 *
 *   JSampler is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with JSampler; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *   MA  02111-1307  USA
 */

package org.jsampler;

import java.util.Vector;

import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import net.sf.juife.event.TaskEvent;
import net.sf.juife.event.TaskListener;

import org.jsampler.task.InstrumentsDb.FindLostInstrumentFiles;

/**
 * A data model providing information about the lost instrument files in the instruments database.
 * @author Grigor Iliev
 */
public class LostFilesModel {
        private final Vector<String> lostFiles = new Vector<String>();
        private final Vector<ChangeListener> listeners = new Vector<ChangeListener>();
        
        /** Creates a new instance of <code>LostFilesModel</code> */
        public
        LostFilesModel() { }
        
        /**
         * Registers the specified listener to be notified when the list
         * of lost files is updated.
         * @param l The <code>ChangeListener</code> to register.
         */
        public void
        addChangeListener(ChangeListener l) { listeners.add(l); }
        
        /**
         * Removes the specified listener.
         * @param l The <code>ChangeListener</code> to remove.
         */
        public void
        removeChangeListener(ChangeListener l) { listeners.remove(l); }
        
        /** Returns a list of all lost files. */
        public String[]
        getLostFiles() {
                return lostFiles.toArray(new String[lostFiles.size()]);
        }
        
        /**
         * Gets the absolute pathname of the lost file at the specified position.
         * @param index The position of the lost file to return.
         * @return The absolute pathname of the lost file at the specified position.
         */
        public String
        getLostFile(int index) { return lostFiles.get(index); }
        
        /**
         * Gets the number of lost files in the instruments database.
         * @return The number of lost files in the instruments database.
         */
        public int
        getLostFileCount() { return lostFiles.size(); }
        
        /** Updates the list of lost instrument files. */
        public void
        update() {
                final FindLostInstrumentFiles t = new FindLostInstrumentFiles();
                t.addTaskListener(new TaskListener() {
                        public void
                        taskPerformed(TaskEvent e) {
                                if(t.doneWithErrors()) return;
                                lostFiles.removeAllElements();
                                for(String s : t.getResult()) lostFiles.add(s);
                                fireLostFileListUpdated();
                        }
                });
                
                lostFiles.removeAllElements();
                fireLostFileListUpdated();
                
                CC.getTaskQueue().add(t);
        }
        
        /** 
         * Notifies listeners that the list of lost files is updated.
         */
        private void
        fireLostFileListUpdated() {
                ChangeEvent e = new ChangeEvent(this);
                for(ChangeListener l : listeners) l.stateChanged(e);
        }
}
1	iliev	1729	/*
2			* JSampler - a java front-end for LinuxSampler
3			*
4			* Copyright (C) 2005-2008 Grigor Iliev <grigor@grigoriliev.com>
5			*
6			* This file is part of JSampler.
7			*
8			* JSampler is free software; you can redistribute it and/or modify
9			* it under the terms of the GNU General Public License version 2
10			* as published by the Free Software Foundation.
11			*
12			* JSampler is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with JSampler; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20			* MA 02111-1307 USA
21			*/
22
23			package org.jsampler;
24
25			import java.util.Vector;
26
27			import javax.swing.event.ChangeEvent;
28			import javax.swing.event.ChangeListener;
29
30			import net.sf.juife.event.TaskEvent;
31			import net.sf.juife.event.TaskListener;
32
33			import org.jsampler.task.InstrumentsDb.FindLostInstrumentFiles;
34
35			/**
36			* A data model providing information about the lost instrument files in the instruments database.
37			* @author Grigor Iliev
38			*/
39			public class LostFilesModel {
40			private final Vector<String> lostFiles = new Vector<String>();
41			private final Vector<ChangeListener> listeners = new Vector<ChangeListener>();
42
43			/** Creates a new instance of <code>LostFilesModel</code> */
44			public
45			LostFilesModel() { }
46
47			/**
48			* Registers the specified listener to be notified when the list
49			* of lost files is updated.
50			* @param l The <code>ChangeListener</code> to register.
51			*/
52			public void
53			addChangeListener(ChangeListener l) { listeners.add(l); }
54
55			/**
56			* Removes the specified listener.
57			* @param l The <code>ChangeListener</code> to remove.
58			*/
59			public void
60			removeChangeListener(ChangeListener l) { listeners.remove(l); }
61
62			/** Returns a list of all lost files. */
63			public String[]
64			getLostFiles() {
65			return lostFiles.toArray(new String[lostFiles.size()]);
66			}
67
68			/**
69			* Gets the absolute pathname of the lost file at the specified position.
70			* @param index The position of the lost file to return.
71			* @return The absolute pathname of the lost file at the specified position.
72			*/
73			public String
74			getLostFile(int index) { return lostFiles.get(index); }
75
76			/**
77			* Gets the number of lost files in the instruments database.
78			* @return The number of lost files in the instruments database.
79			*/
80			public int
81			getLostFileCount() { return lostFiles.size(); }
82
83			/** Updates the list of lost instrument files. */
84			public void
85			update() {
86			final FindLostInstrumentFiles t = new FindLostInstrumentFiles();
87			t.addTaskListener(new TaskListener() {
88			public void
89			taskPerformed(TaskEvent e) {
90			if(t.doneWithErrors()) return;
91			lostFiles.removeAllElements();
92			for(String s : t.getResult()) lostFiles.add(s);
93			fireLostFileListUpdated();
94			}
95			});
96
97			lostFiles.removeAllElements();
98			fireLostFileListUpdated();
99
100			CC.getTaskQueue().add(t);
101			}
102
103			/**
104			* Notifies listeners that the list of lost files is updated.
105			*/
106			private void
107			fireLostFileListUpdated() {
108			ChangeEvent e = new ChangeEvent(this);
109			for(ChangeListener l : listeners) l.stateChanged(e);
110			}
111			}