1 files changed, 86 insertions, 0 deletions
diff --git a/src/main/java/com/jsyn/devices/javasound/MidiDeviceTools.java b/src/main/java/com/jsyn/devices/javasound/MidiDeviceTools.java
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index 0000000..9cff095
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+++ b/src/main/java/com/jsyn/devices/javasound/MidiDeviceTools.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2009 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.javasound;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.sound.midi.MidiDevice;
+import javax.sound.midi.MidiSystem;
+import javax.sound.midi.MidiUnavailableException;
+import javax.sound.midi.Sequencer;
+import javax.sound.midi.Synthesizer;
+
+public class MidiDeviceTools {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(MidiDeviceTools.class);
+
+    /** Print the available MIDI Devices. */
+    public static void listDevices() {
+        // Ask the MidiSystem what is available.
+        MidiDevice.Info[] infos = MidiSystem.getMidiDeviceInfo();
+        // Print info about each device.
+        for (MidiDevice.Info info : infos) {
+            LOGGER.debug("MIDI Info: " + info.getDescription() + ", " + info.getName() + ", "
+                    + info.getVendor() + ", " + info.getVersion());
+            // Get the device for more information.
+            try {
+                MidiDevice device = MidiSystem.getMidiDevice(info);
+                LOGGER.debug("   Device: " + ", #recv = " + device.getMaxReceivers()
+                        + ", #xmit = " + device.getMaxTransmitters() + ", open = "
+                        + device.isOpen() + ", " + device);
+            } catch (MidiUnavailableException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /** Find a MIDI transmitter that contains text in the name. */
+    public static MidiDevice findKeyboard(String text) {
+        MidiDevice keyboard = null;
+        // Ask the MidiSystem what is available.
+        MidiDevice.Info[] infos = MidiSystem.getMidiDeviceInfo();
+        // Print info about each device.
+        for (MidiDevice.Info info : infos) {
+            try {
+                MidiDevice device = MidiSystem.getMidiDevice(info);
+                // Hardware devices are not Synthesizers or Sequencers.
+                if (!(device instanceof Synthesizer) && !(device instanceof Sequencer)) {
+                    // Is this a transmitter?
+                    // Might be -1 if unlimited.
+                    if (device.getMaxTransmitters() != 0) {
+                        if ((text == null)
+                                || (info.getDescription().toLowerCase()
+                                        .contains(text.toLowerCase()))) {
+                            keyboard = device;
+                            LOGGER.debug("Chose: " + info.getDescription());
+                            break;
+                        }
+                    }
+                }
+            } catch (MidiUnavailableException e) {
+                e.printStackTrace();
+            }
+        }
+        return keyboard;
+    }
+
+    public static MidiDevice findKeyboard() {
+        return findKeyboard(null);
+    }
+
+}