Added local audio file playback

src/main/java/com/fpghoti/biscuit/audio/result/FileResultHandler.java

@@ -0,0 +1,70 @@
+package com.fpghoti.biscuit.audio.result;
+
+import com.fpghoti.biscuit.audio.AudioScheduler;
+import com.fpghoti.biscuit.audio.request.PlayRequest;
+import com.fpghoti.biscuit.audio.request.file.FilePriorityRequest;
+import com.fpghoti.biscuit.audio.request.file.FileRequest;
+import com.fpghoti.biscuit.guild.BiscuitGuild;
+import com.fpghoti.biscuit.rest.MessageText;
+import com.sedmelluq.discord.lavaplayer.tools.FriendlyException;
+import com.sedmelluq.discord.lavaplayer.track.AudioPlaylist;
+import com.sedmelluq.discord.lavaplayer.track.AudioTrack;
+
+public class FileResultHandler extends ResultHandler {
+
+	private BiscuitGuild biscuit;
+	private FileRequest request;
+
+	public FileResultHandler(FileRequest request) {
+		this.request = request;
+		this.biscuit = request.getBiscuitGuild();
+	}
+
+	public PlayRequest getRequest() {
+		return request;
+	}
+
+	public void handleTrack(AudioTrack track) {
+		AudioScheduler sched = biscuit.getAudioScheduler();
+
+		switch(request.getType()) {
+
+		case FILE:
+			sched.queue(request.getType(), track, request.getAuthorId(), request.getRequestChannel());
+			break;
+
+		case FILE_PRIORITY:
+			FilePriorityRequest prq = (FilePriorityRequest) request;
+			sched.queue(request.getType(), track, request.getAuthorId(), request.getRequestChannel(), prq.getSlot());
+			break;
+
+		default:
+			biscuit.error("File result handler received an incompatible request.");
+			break;
+
+		}
+	}
+
+	@Override
+	public void trackLoaded(AudioTrack track) {
+		handleTrack(track);
+	}
+
+	@Override
+	public void playlistLoaded(AudioPlaylist playlist) {
+		AudioTrack track = playlist.getTracks().get(0);
+		handleTrack(track);
+	}
+
+	@Override
+	public void noMatches() { 
+		MessageText.send(request.getRequestChannel(), "File not found.");
+	}
+
+	@Override
+	public void loadFailed(FriendlyException exception) {
+		exception.printStackTrace();
+		MessageText.send(request.getRequestChannel(), "An error was encountered while attempting to load audio.");
+	}
+
+}