// uniCenta oPOS - Touch Friendly Point Of Sale
// Copyright (c) 2009-2013 uniCenta & previous Openbravo POS works
// http://www.unicenta.net/unicentaopos
//
// This file is part of uniCenta oPOS
//
// uniCenta oPOS is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// uniCenta oPOS is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with uniCenta oPOS. If not, see <http://www.gnu.org/licenses/>.
package com.openbravo.pos.printer.escpos;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public abstract class PrinterWritter {
private boolean initialized = false;
private ExecutorService exec;
public PrinterWritter() {
exec = Executors.newSingleThreadExecutor();
}
protected abstract void internalWrite(byte[] data);
protected abstract void internalFlush();
protected abstract void internalClose();
public void init(final byte[] data) {
if (!initialized) {
write(data);
initialized = true;
}
}
public void write(String sValue) {
write(sValue.getBytes());
}
public void write(final byte[] data) {
exec.execute(new Runnable() {
@Override
public void run() {
internalWrite(data);
}
});
}
public void flush() {
exec.execute(new Runnable() {
@Override
public void run() {
internalFlush();
}
});
}
public void close() {
exec.execute(new Runnable() {
@Override
public void run() {
internalClose();
}
});
exec.shutdown();
}
}