RXTXCommConnectionImpl.java

/*
 * GCF - Generic Connection Framework for Java SE
 *       GCF-Comm (RXTX)
 *
 * Copyright (c) 2007-2011 Marcel Patzlaff (marcel.patzlaff@gmail.com)
 *
 * This library is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This library 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.github.gcf.io.comm;

import gnu.io.SerialPort;
import gnu.io.UnsupportedCommOperationException;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import javax.microedition.io.CommConnection;

import com.github.gcf.io.AbstractConnection;


/**
 * @author Marcel Patzlaff
 */
final class RXTXCommConnectionImpl extends AbstractConnection implements CommConnection {
    private final SerialPort _port;
    
    protected RXTXCommConnectionImpl(SerialPort port) {
        _port= port;
    }
    
    public int getBaudRate() {
        return _port.getBaudRate();
    }

    public int setBaudRate(int baudrate) {
        try {
            _port.setSerialPortParams(
                baudrate,
                _port.getDataBits(),
                _port.getStopBits(),
                _port.getParity()
            );
        } catch (UnsupportedCommOperationException e) {
            System.err.println("Cannot change baud rate");
        }
        
        return _port.getBaudRate();
    }

    public DataInputStream openDataInputStream() throws IOException {
        ensureOpen();
        return new DataInputStream(openInputStream());
    }

    public InputStream openInputStream() throws IOException {
        ensureOpen();
        return new RegisteredInputStream(_port.getInputStream());
    }

    public DataOutputStream openDataOutputStream() throws IOException {
        ensureOpen();
        return new DataOutputStream(openOutputStream());
    }

    public OutputStream openOutputStream() throws IOException {
        ensureOpen();
        return new RegisteredOutputStream(_port.getOutputStream());
    }

    protected void closeMainResource() throws IOException {
        _port.close();
    }
}