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package org.herac.tuxguitar.player.impl.jsa.sequencer;

 

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

 

import javax.sound.midi.MidiDevice;

import javax.sound.midi.MidiSystem;

import javax.sound.midi.MidiUnavailableException;

import javax.sound.midi.Sequencer;

 

import org.herac.tuxguitar.gui.TuxGuitar;

import org.herac.tuxguitar.player.base.MidiPlayerException;

import org.herac.tuxguitar.player.base.MidiSequencer;

import org.herac.tuxguitar.player.base.MidiSequencerProvider;

 

public class MidiSequencerProviderImpl implements MidiSequencerProvider{

        

        public MidiSequencerProviderImpl(){

                super();

        }

        

        public List listSequencers() throws MidiPlayerException {

                try {

                        List sequencers = new ArrayList();

                        MidiDevice.Info[] infos = MidiSystem.getMidiDeviceInfo();

                        for(int i = 0; i < infos.length; i++){

                                try {

                                        Iterator it = sequencers.iterator();

                                        boolean exists = false;

                                        while(it.hasNext()){

                                                if( ((MidiSequencer)it.next()).getKey().equals(infos[i].getName()) ){

                                                        exists = true;

                                                        break;

                                                }

                                        }

                                        if(!exists){

                                                MidiDevice device = MidiSystem.getMidiDevice(infos[i]);

                                                if(device instanceof Sequencer){

                                                        sequencers.add(new MidiSequencerImpl((Sequencer)device));

                                                }

                                        }

                                } catch (MidiUnavailableException e) {

                                        throw new MidiPlayerException(TuxGuitar.getProperty("jsa.error.midi.unavailable"),e);

                                }

                        }

                        return sequencers;

                }catch (Throwable t) {

                        throw new MidiPlayerException(TuxGuitar.getProperty("jsa.error.unknown"),t);

                }

        }

        

        public void closeAll() throws MidiPlayerException {

                // Not implemented

        }

}