jsampler/task/UpdateChannels.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2011 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.task;

import org.jsampler.CC;
import org.jsampler.SamplerChannelModel;
import org.jsampler.SamplerModel;

import org.linuxsampler.lscp.SamplerChannel;

import net.sf.juife.Task;

import static org.jsampler.JSI18n.i18n;


/**
 * This task updates the sampler channel list.
 * @author Grigor Iliev
 */
public class UpdateChannels extends EnhancedTask {
        /** Creates a new instance of <code>UpdateChannels</code>. */
        public
        UpdateChannels() {
                setTitle("UpdateChannels_task");
                setDescription(i18n.getMessage("UpdateChannels.description"));
                //setCalculateElapsedTime(true);
        }
        
        /** The entry point of the task. */
        @Override
        public void
        exec() throws Exception {
                SamplerModel sm = CC.getSamplerModel();
                Integer[] chnIDs = CC.getClient().getSamplerChannelIDs();
                
                boolean found = false, changed = false;
                
                boolean isAdjustingOld = CC.getSamplerModel().getChannelListIsAdjusting();
                
                javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
                        public void
                        run() {
                                CC.getSamplerModel().setChannelListIsAdjusting(true);
                                CC.getMainFrame().setAutoUpdateChannelListUI(false);
                        }
                });
                
                for(SamplerChannelModel m : sm.getChannels()) {
                        for(int i = 0; i < chnIDs.length; i++) {
                                if(m.getChannelId() == chnIDs[i]) {
                                        chnIDs[i] = -1;
                                        found = true;
                                }
                        }
                        
                        if(!found) {
                                sm.removeChannelById(m.getChannelId());
                                changed = true;
                        }
                        found = false;
                }

                SamplerChannel[] chns = CC.getClient().getSamplerChannels(chnIDs);
                
                for(int i = 0; i < chns.length - 1; i++) sm.addChannel(chns[i]);
                
                manageAutoUpdate(false);
                
                if(chns.length > 0) sm.addChannel(chns[chns.length - 1]);
                else if(!CC.getSamplerModel().getChannelListIsAdjusting()) {
                        if(!isAdjustingOld && !changed); // do nothing if nothing is changed
                        else sm.addChannel(null); // fire dummy event to end an adjusting sequence
                }
        }

        @Override
        public void
        onError(Exception e) {
                manageAutoUpdate(true);
        }
        
        private void
        manageAutoUpdate(boolean force) {
                if(!force) {
                        Task[] tasks = CC.getTaskQueue().getPendingTasks();
                        for(Task t : tasks) if(t.equals(this)) return;
                }
                
                try {
                        javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
                                public void
                                run() {
                                        CC.getSamplerModel().setChannelListIsAdjusting(false);
                                        CC.getMainFrame().setAutoUpdateChannelListUI(true);
                                        CC.getMainFrame().updateChannelListUI();
                                }
                        });
                } catch(Exception x) {
                        x.printStackTrace();
                }
        }
                
        /**
         * Used to decrease the traffic. All task in the queue
         * equal to this are removed if added using {@link org.jsampler.CC#scheduleTask}.
         * @see org.jsampler.CC#addTask
         */
        @Override
        public boolean
        equals(Object obj) {
                if(obj == null) return false;
                if(!(obj instanceof UpdateChannels)) return false;
                
                return true;
        }
}
1	iliev	787	/*
2			* JSampler - a java front-end for LinuxSampler
3			*
4	iliev	2192	* Copyright (C) 2005-2011 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			import org.jsampler.CC;
26	iliev	1143	import org.jsampler.SamplerChannelModel;
27	iliev	787	import org.jsampler.SamplerModel;
28
29	iliev	1737	import org.linuxsampler.lscp.SamplerChannel;
30
31	iliev	1734	import net.sf.juife.Task;
32
33	iliev	787	import static org.jsampler.JSI18n.i18n;
34
35
36			/**
37	iliev	1143	* This task updates the sampler channel list.
38	iliev	787	* @author Grigor Iliev
39			*/
40	iliev	842	public class UpdateChannels extends EnhancedTask {
41	iliev	911	/** Creates a new instance of <code>UpdateChannels</code>. */
42	iliev	787	public
43			UpdateChannels() {
44			setTitle("UpdateChannels_task");
45			setDescription(i18n.getMessage("UpdateChannels.description"));
46	iliev	2192	//setCalculateElapsedTime(true);
47	iliev	787	}
48
49	iliev	911	/** The entry point of the task. */
50	iliev	1867	@Override
51	iliev	787	public void
52	iliev	1867	exec() throws Exception {
53			SamplerModel sm = CC.getSamplerModel();
54			Integer[] chnIDs = CC.getClient().getSamplerChannelIDs();
55
56	iliev	1880	boolean found = false, changed = false;
57	iliev	1867
58	iliev	1880	boolean isAdjustingOld = CC.getSamplerModel().getChannelListIsAdjusting();
59	iliev	1867
60			javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
61			public void
62			run() {
63			CC.getSamplerModel().setChannelListIsAdjusting(true);
64			CC.getMainFrame().setAutoUpdateChannelListUI(false);
65			}
66			});
67
68			for(SamplerChannelModel m : sm.getChannels()) {
69			for(int i = 0; i < chnIDs.length; i++) {
70			if(m.getChannelId() == chnIDs[i]) {
71			chnIDs[i] = -1;
72			found = true;
73	iliev	1737	}
74	iliev	787	}
75
76	iliev	1880	if(!found) {
77			sm.removeChannelById(m.getChannelId());
78			changed = true;
79			}
80	iliev	1867	found = false;
81	iliev	787	}
82	iliev	2192
83			SamplerChannel[] chns = CC.getClient().getSamplerChannels(chnIDs);
84	iliev	1867
85	iliev	2192	for(int i = 0; i < chns.length - 1; i++) sm.addChannel(chns[i]);
86	iliev	1867
87			manageAutoUpdate(false);
88
89	iliev	2192	if(chns.length > 0) sm.addChannel(chns[chns.length - 1]);
90	iliev	1867	else if(!CC.getSamplerModel().getChannelListIsAdjusting()) {
91	iliev	1880	if(!isAdjustingOld && !changed); // do nothing if nothing is changed
92			else sm.addChannel(null); // fire dummy event to end an adjusting sequence
93	iliev	1867	}
94	iliev	787	}
95	iliev	1867
96			@Override
97			public void
98			onError(Exception e) {
99			manageAutoUpdate(true);
100			}
101	iliev	1734
102			private void
103			manageAutoUpdate(boolean force) {
104			if(!force) {
105			Task[] tasks = CC.getTaskQueue().getPendingTasks();
106			for(Task t : tasks) if(t.equals(this)) return;
107			}
108
109	iliev	1818	try {
110			javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
111			public void
112			run() {
113			CC.getSamplerModel().setChannelListIsAdjusting(false);
114			CC.getMainFrame().setAutoUpdateChannelListUI(true);
115			CC.getMainFrame().updateChannelListUI();
116			}
117			});
118			} catch(Exception x) {
119			x.printStackTrace();
120			}
121	iliev	1734	}
122
123			/**
124			* Used to decrease the traffic. All task in the queue
125			* equal to this are removed if added using {@link org.jsampler.CC#scheduleTask}.
126			* @see org.jsampler.CC#addTask
127			*/
128	iliev	1818	@Override
129	iliev	1734	public boolean
130			equals(Object obj) {
131			if(obj == null) return false;
132			if(!(obj instanceof UpdateChannels)) return false;
133
134			return true;
135			}
136	iliev	787	}