java-org.hwo/src/org/hwo/io/NativeSerialPort.java

package org.hwo.io;

import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.concurrent.TimeoutException;

import org.hwo.fifo.FiFo;
import org.hwo.nativeloader.NativeLoader;

public class NativeSerialPort extends SerialPort {
	
	class SerialPortInputStream extends InputStream
	{
		@Override
		public int read() throws IOException {
			if (!isOpen())
				throw new IOException("Port nicht gešffnet!");
			
			int ch = native_getch(nativeHandle,getTimeout());
			//System.err.println(String.format("RX: 0x%08x", ch));
			if (ch < 0)
				throw new IOException(String.format("native_getch: returned: %d",ch));
			return ch;
		}
		
	}
	
	class SerialPortOutputStream extends OutputStream
	{
		@Override
		public void write(int arg0) throws IOException {
			if (!isOpen())
				throw new IOException("Port nicht gešffnet!");
			//System.err.println(String.format("TX: 0x%08x", arg0));
			native_putch(nativeHandle, getTimeout(), arg0);
		}
	}
	
	
	private static native int native_open(String portName);
	private static native int native_close(int handle);
	private static native int native_send(int handle,byte[] data);
	private static native int native_recv(int handle,byte[] data);
	
	private static native int native_getch(int handle,int timeout);
	private static native int native_putch(int handle,int timeout,int ch);
	
	private int nativeHandle;
	
	private SerialPortInputStream inputStream;
	private SerialPortOutputStream outputStream;
	
	public NativeSerialPort()
	{
		nativeHandle = -1;
		inputStream = new SerialPortInputStream();
		outputStream = new SerialPortOutputStream();
	}
	
	@Override
	public boolean isOpen() {
		return (nativeHandle >= 0);
	}
	
	@Override
	public boolean open() {
		if (isOpen())
			return false;
		
		nativeHandle = native_open(getPortName());
		System.err.println(String.format("NativeSerialPort: nativeHandle: %d",nativeHandle));
		if (nativeHandle < 0)
			return false;
		
		return true;
	}

	@Override
	public void close() {
		if (nativeHandle >= 0)
		{
			System.err.println(String.format("NativeSerialPort: Closing nativeHandle %d",nativeHandle));
			native_close(nativeHandle);
		}
		nativeHandle = -1;
	}
	
	@Override
	public InputStream getInputStream() {
		return inputStream;
	}
	
	@Override
	public OutputStream getOutputStream() {
		return outputStream;
	}
	
	static {
		NativeLoader.loadLibrary("hwoio");
	}

}