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	/*
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	}