/[svn]/jsampler/trunk/src/org/jsampler/task/UpdateChannels.java
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Annotation of /jsampler/trunk/src/org/jsampler/task/UpdateChannels.java

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Revision 1867 - (hide annotations) (download)
Mon Mar 16 22:12:32 2009 UTC (15 years, 1 month ago) by iliev
File size: 3610 byte(s)
* proper handling of connection failures
* renamed Channels Panels to Channel Lanes
* code cleanup

1 iliev 787 /*
2     * JSampler - a java front-end for LinuxSampler
3     *
4 iliev 1867 * Copyright (C) 2005-2009 Grigor Iliev <grigor@grigoriliev.com>
5 iliev 787 *
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.task;
24    
25 iliev 1737 import java.util.Vector;
26 iliev 787
27     import org.jsampler.CC;
28 iliev 1143 import org.jsampler.SamplerChannelModel;
29 iliev 787 import org.jsampler.SamplerModel;
30    
31 iliev 1737 import org.linuxsampler.lscp.SamplerChannel;
32    
33 iliev 1734 import net.sf.juife.Task;
34    
35 iliev 787 import static org.jsampler.JSI18n.i18n;
36    
37    
38     /**
39 iliev 1143 * This task updates the sampler channel list.
40 iliev 787 * @author Grigor Iliev
41     */
42 iliev 842 public class UpdateChannels extends EnhancedTask {
43 iliev 911 /** Creates a new instance of <code>UpdateChannels</code>. */
44 iliev 787 public
45     UpdateChannels() {
46     setTitle("UpdateChannels_task");
47     setDescription(i18n.getMessage("UpdateChannels.description"));
48     }
49    
50 iliev 911 /** The entry point of the task. */
51 iliev 1867 @Override
52 iliev 787 public void
53 iliev 1867 exec() throws Exception {
54     SamplerModel sm = CC.getSamplerModel();
55     Integer[] chnIDs = CC.getClient().getSamplerChannelIDs();
56    
57     boolean found = false;
58    
59     boolean oldValue = CC.getSamplerModel().getChannelListIsAdjusting();
60    
61     javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
62     public void
63     run() {
64     CC.getSamplerModel().setChannelListIsAdjusting(true);
65     CC.getMainFrame().setAutoUpdateChannelListUI(false);
66     }
67     });
68    
69     for(SamplerChannelModel m : sm.getChannels()) {
70     for(int i = 0; i < chnIDs.length; i++) {
71     if(m.getChannelId() == chnIDs[i]) {
72     chnIDs[i] = -1;
73     found = true;
74 iliev 1737 }
75 iliev 787 }
76    
77 iliev 1867 if(!found) sm.removeChannelById(m.getChannelId());
78     found = false;
79 iliev 787 }
80 iliev 1867
81     Vector<SamplerChannel> v = new Vector<SamplerChannel>();
82     for(int id : chnIDs) {
83     if(id >= 0) v.add(CC.getClient().getSamplerChannelInfo(id));
84     }
85    
86     for(int i = 0; i < v.size() - 1; i++) sm.addChannel(v.elementAt(i));
87    
88     manageAutoUpdate(false);
89    
90     if(v.size() > 0) sm.addChannel(v.elementAt(v.size() - 1));
91     else if(!CC.getSamplerModel().getChannelListIsAdjusting()) {
92     // FIXME: no change after
93     // CC.getSamplerModel().setChannelListIsAdjusting(false);
94     }
95 iliev 787 }
96 iliev 1867
97     @Override
98     public void
99     onError(Exception e) {
100     manageAutoUpdate(true);
101     }
102 iliev 1734
103     private void
104     manageAutoUpdate(boolean force) {
105     if(!force) {
106     Task[] tasks = CC.getTaskQueue().getPendingTasks();
107     for(Task t : tasks) if(t.equals(this)) return;
108     }
109    
110 iliev 1818 try {
111     javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
112     public void
113     run() {
114     CC.getSamplerModel().setChannelListIsAdjusting(false);
115     CC.getMainFrame().setAutoUpdateChannelListUI(true);
116     CC.getMainFrame().updateChannelListUI();
117     }
118     });
119     } catch(Exception x) {
120     x.printStackTrace();
121     }
122 iliev 1734 }
123    
124     /**
125     * Used to decrease the traffic. All task in the queue
126     * equal to this are removed if added using {@link org.jsampler.CC#scheduleTask}.
127     * @see org.jsampler.CC#addTask
128     */
129 iliev 1818 @Override
130 iliev 1734 public boolean
131     equals(Object obj) {
132     if(obj == null) return false;
133     if(!(obj instanceof UpdateChannels)) return false;
134    
135     return true;
136     }
137 iliev 787 }

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