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/*
* Copyright © 2011 Keith Packard <keithp@keithp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
package altosui;
import java.lang.*;
import java.util.*;
import libaltosJNI.*;
import java.util.prefs.*;
public class AltosBTKnown implements Iterable<AltosBTDevice> {
LinkedList<AltosBTDevice> devices = new LinkedList<AltosBTDevice>();
Preferences bt_pref = AltosUIPreferences.bt_devices();
private String get_address(String name) {
return bt_pref.get(name, "");
}
private void set_address(String name, String addr) {
bt_pref.put(name, addr);
}
private void remove(String name) {
bt_pref.remove(name);
}
private void load() {
try {
String[] names = bt_pref.keys();
for (int i = 0; i < names.length; i++) {
String name = names[i];
String addr = get_address(name);
devices.add(new AltosBTDevice(name, addr));
}
} catch (BackingStoreException be) {
} catch (IllegalStateException ie) {
}
}
public Iterator<AltosBTDevice> iterator() {
return devices.iterator();
}
private void flush() {
AltosUIPreferences.flush_preferences();
}
public void set(Iterable<AltosBTDevice> new_devices) {
for (AltosBTDevice old : devices) {
boolean found = false;
for (AltosBTDevice new_device : new_devices) {
if (new_device.equals(old)) {
found = true;
break;
}
}
if (!found)
remove(old.getName());
}
devices = new LinkedList<AltosBTDevice>();
for (AltosBTDevice new_device : new_devices) {
devices.add(new_device);
set_address(new_device.getName(), new_device.getAddr());
}
flush();
}
public List<AltosDevice> list(int product) {
LinkedList<AltosDevice> list = new LinkedList<AltosDevice>();
for (AltosBTDevice device : devices) {
if (device.matchProduct(product))
list.add(device);
}
return list;
}
public AltosBTKnown() {
devices = new LinkedList<AltosBTDevice>();
bt_pref = AltosUIPreferences.bt_devices();
load();
}
static AltosBTKnown known;
static public AltosBTKnown bt_known() {
if (known == null)
known = new AltosBTKnown();
return known;
}
}
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