1 files changed, 93 insertions, 0 deletions
diff --git a/src/main/java/com/jsyn/devices/AudioDeviceFactory.java b/src/main/java/com/jsyn/devices/AudioDeviceFactory.java
new file mode 100644
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+++ b/src/main/java/com/jsyn/devices/AudioDeviceFactory.java
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+/*
+ * Copyright 2010 Phil Burk, Mobileer Inc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.jsyn.devices;
+
+import com.jsyn.util.JavaTools;
+
+/**
+ * Create a device appropriate for the platform.
+ * 
+ * @author Phil Burk (C) 2010 Mobileer Inc
+ */
+public class AudioDeviceFactory {
+    private static AudioDeviceManager instance;
+
+    /**
+     * Use a custom device interface. Overrides the selection of a default device manager.
+     * 
+     * @param instance
+     */
+    public static void setInstance(AudioDeviceManager instance) {
+        AudioDeviceFactory.instance = instance;
+    }
+
+    /**
+     * Try to load JPortAudio or JavaSound devices.
+     * 
+     * @return A device supported on this platform.
+     */
+    public static AudioDeviceManager createAudioDeviceManager() {
+        return createAudioDeviceManager(false);
+    }
+
+    /**
+     * Try to load JPortAudio or JavaSound devices.
+     * 
+     * @param preferJavaSound if true then try to create a JavaSound manager before other types.
+     * @return A device supported on this platform.
+     */
+    public static AudioDeviceManager createAudioDeviceManager(boolean preferJavaSound) {
+        if (preferJavaSound) {
+            tryJavaSound();
+            tryJPortAudio();
+        } else {
+            tryJPortAudio();
+            tryJavaSound();
+        }
+        return instance;
+    }
+
+    private static void tryJavaSound() {
+        if (instance == null) {
+            try {
+                @SuppressWarnings("unchecked")
+                Class<AudioDeviceManager> clazz = JavaTools.loadClass(
+                        "com.jsyn.devices.javasound.JavaSoundAudioDevice", false);
+                if (clazz != null) {
+                    instance = clazz.newInstance();
+                }
+            } catch (Throwable e) {
+                System.err.println("Could not load JavaSound device. " + e);
+            }
+        }
+    }
+
+    private static void tryJPortAudio() {
+        if (instance == null) {
+            try {
+                if (JavaTools.loadClass("com.portaudio.PortAudio", false) != null) {
+                    instance = (AudioDeviceManager) JavaTools.loadClass(
+                            "com.jsyn.devices.jportaudio.JPortAudioDevice").newInstance();
+                }
+
+            } catch (Throwable e) {
+                System.err.println("Could not load JPortAudio device. " + e);
+            }
+        }
+    }
+
+}