From 9fee0ec4ca0c5b7a334cc29dbb58e76c7a4c736e Mon Sep 17 00:00:00 2001
From: Michiel Van Der Kolk <not.valid@email.address>
Date: Mon, 11 Jul 2005 15:42:37 +0000
Subject: Songdb java version, source. only 1.5 compatible

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7101 a1c6a512-1295-4272-9138-f99709370657
---
 songdbj/javazoom/jl/player/FactoryRegistry.java | 129 ++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 songdbj/javazoom/jl/player/FactoryRegistry.java

(limited to 'songdbj/javazoom/jl/player/FactoryRegistry.java')

diff --git a/songdbj/javazoom/jl/player/FactoryRegistry.java b/songdbj/javazoom/jl/player/FactoryRegistry.java
new file mode 100644
index 0000000000..8919995802
--- /dev/null
+++ b/songdbj/javazoom/jl/player/FactoryRegistry.java
@@ -0,0 +1,129 @@
+/*
+ * 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 java.util.Enumeration;
+import java.util.Hashtable;
+
+import javazoom.jl.decoder.JavaLayerException;
+
+/**
+ * The <code>FactoryRegistry</code> class stores the factories
+ * for all the audio device implementations available in the system. 
+ * <p>
+ * Instances of this class are thread-safe. 
+ * 
+ * @since 0.0.8
+ * @author Mat McGowan
+ */
+
+public class FactoryRegistry extends AudioDeviceFactory
+{
+	static private FactoryRegistry instance = null;
+	
+	static synchronized public FactoryRegistry systemRegistry()
+	{
+		if (instance==null)
+		{
+			instance = new FactoryRegistry();
+			instance.registerDefaultFactories();
+		}
+		return instance;
+	}
+
+	
+	protected Hashtable factories = new Hashtable();
+	
+	/**
+	 * Registers an <code>AudioDeviceFactory</code> instance
+	 * with this registry. 
+	 */
+	public void addFactory(AudioDeviceFactory factory)
+	{	
+		factories.put(factory.getClass(), factory);						  
+	}
+	
+	public void removeFactoryType(Class cls)
+	{
+		factories.remove(cls);
+	}
+	
+	public void removeFactory(AudioDeviceFactory factory)
+	{
+		factories.remove(factory.getClass());	
+	}
+	
+	public AudioDevice createAudioDevice() throws JavaLayerException
+	{
+		AudioDevice device = null;
+		AudioDeviceFactory[] factories = getFactoriesPriority();
+		
+		if (factories==null)
+			throw new JavaLayerException(this+": no factories registered");
+		
+		JavaLayerException lastEx = null;
+		for (int i=0; (device==null) && (i<factories.length); i++)
+		{
+			try
+			{
+				device = factories[i].createAudioDevice();
+			}
+			catch (JavaLayerException ex)
+			{
+				lastEx = ex;
+			}
+		}
+		
+		if (device==null && lastEx!=null)
+		{
+			throw new JavaLayerException("Cannot create AudioDevice", lastEx);	
+		}
+		
+		return device;
+	}
+	
+	
+	protected AudioDeviceFactory[] getFactoriesPriority()
+	{
+		AudioDeviceFactory[] fa = null;
+		synchronized (factories)
+		{
+			int size = factories.size();
+			if (size!=0)
+			{
+				fa = new AudioDeviceFactory[size];
+				int idx = 0;
+				Enumeration e = factories.elements();
+				while (e.hasMoreElements())
+				{
+					AudioDeviceFactory factory = (AudioDeviceFactory)e.nextElement();
+					fa[idx++] = factory;	
+				}
+			}
+		}
+		return fa;
+	}
+
+	protected void registerDefaultFactories()
+	{
+		addFactory(new JavaSoundAudioDeviceFactory());
+	}
+}
-- 
cgit v1.2.3