1 files changed, 85 insertions, 0 deletions
diff --git a/songdbj/javazoom/jl/player/JavaSoundAudioDeviceFactory.java b/songdbj/javazoom/jl/player/JavaSoundAudioDeviceFactory.java
new file mode 100644
index 0000000..92af492
--- /dev/null
+++ b/songdbj/javazoom/jl/player/JavaSoundAudioDeviceFactory.java
@@ -0,0 +1,85 @@
+/*
+ * 11/19/04		1.0 moved to LGPL.
+ * 29/01/00		Initial version. mdm@techie.com
+ *-----------------------------------------------------------------------
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Library General Public License as published
+ *   by the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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 Library General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Library General Public
+ *   License along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *----------------------------------------------------------------------
+ */
+
+package javazoom.jl.player;
+
+import javazoom.jl.decoder.JavaLayerException;
+
+/**
+ * This class is responsible for creating instances of the
+ * JavaSoundAudioDevice. The audio device implementation is loaded
+ * and tested dynamically as not all systems will have support
+ * for JavaSound, or they may have the incorrect version. 
+ */
+public class JavaSoundAudioDeviceFactory extends AudioDeviceFactory
+{
+	private boolean tested = false;
+
+	static private final String DEVICE_CLASS_NAME = "javazoom.jl.player.JavaSoundAudioDevice";
+	
+	public synchronized AudioDevice createAudioDevice()
+		throws JavaLayerException
+	{
+		if (!tested)
+		{			
+			testAudioDevice();
+			tested = true;
+		}
+		
+		try
+		{			
+			return createAudioDeviceImpl();
+		}
+		catch (Exception ex)
+		{
+			throw new JavaLayerException("unable to create JavaSound device: "+ex);
+		}
+		catch (LinkageError ex)
+		{
+			throw new JavaLayerException("unable to create JavaSound device: "+ex);
+		}
+	}
+	
+	protected JavaSoundAudioDevice createAudioDeviceImpl()
+		throws JavaLayerException
+	{
+		ClassLoader loader = getClass().getClassLoader();
+		try
+		{
+			JavaSoundAudioDevice dev = (JavaSoundAudioDevice)instantiate(loader, DEVICE_CLASS_NAME);
+			return dev;
+		}
+		catch (Exception ex)
+		{
+			throw new JavaLayerException("Cannot create JavaSound device", ex);
+		}
+		catch (LinkageError ex)
+		{
+			throw new JavaLayerException("Cannot create JavaSound device", ex);
+		}
+		
+	}
+	
+	public void testAudioDevice() throws JavaLayerException
+	{
+		JavaSoundAudioDevice dev = createAudioDeviceImpl();
+		dev.test();
+	}
+}