private void sendMusic() {
Midi midi = null;
if (editor != null) {
midi = editor.getSelection(true, true);
}
if (midi == null) {
CommonDialog.showOkay(this, "Please select some music and try again.");
return;
}
String base64 = midi.toBase64();
String errorMessage = sendBlocks(sessionName, base64);
if (errorMessage == null) {
MusicMessageListElement musicMessageListElement =
new MusicMessageListElement(new Date(), userId, midi);
addRecentMessage(musicMessageListElement);
messageTextField.setText("");
}
}
private Midi receiveBlocks(MessageBuffer messageBuffer, String message) {
Midi midi = null;
try {
int comma = message.indexOf(',', RSJM.length());
int equals = message.indexOf('=', comma);
int blockNumber = Integer.parseInt(message.substring(RSJM.length(), comma));
int blockCount = Integer.parseInt(message.substring(comma + 1, equals));
String block = message.substring(equals + 1);
messageBuffer.addBlock(blockNumber, blockCount, block);
if (messageBuffer.getBlockCount() == blockCount) {
String base64 = messageBuffer.consume();
midi = Midi.fromBase64(base64);
}
} catch (Exception e) {
e.printStackTrace();
}
return midi;
}
public MusicMessageListElement(Date timestamp, String user, Midi midi) {
this.timestamp = timestamp;
this.user = user;
this.midi = midi;
this.text = "Music message containing " + midi.size() + " elements";
}