/**
*
* NORD POS is a fork of Openbravo POS.
*
* Copyright (C) 2009-2013 Nord Trading Ltd. <http://www.nordpos.com>
*
* This file is part of NORD POS.
*
* NORD POS 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.
*
* NORD POS 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
* NORD POS. If not, see <http://www.gnu.org/licenses/>.
*/
package com.nordpos.device.writter;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
/**
*
* @author Andrey Svininykh <svininykh@gmail.com>
* @version NORD POS 3.0
*/
public abstract class Writter {
private boolean initialized = false;
private final ExecutorService exec;
public Writter() {
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();
}
}