Rewrite sendevent.c from C to Java. this is a test, I am not sure it's right. the question is http://stackoverflow.com/questions/18848540/rewrite-sendevent-c-from-c-to-java

Sendevent.java

package com.yh.aixiaochu.system;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;

public class Sendevent {

	private static ByteBuffer buffer4 = ByteBuffer.allocate(4);
	private static ByteBuffer buffer2 = ByteBuffer.allocate(2);

	public static byte[] getSendArgs(String arg) {
		String[] infos = arg.split(" +");
		System.out.println(arg);
		return getSendArgs(Short.parseShort(infos[2]),
				Short.parseShort(infos[3]), Integer.parseInt(infos[4]));
	}

	public static byte[] getSendArgs(short type, short code, int value) {
		byte[] bytes = new byte[16];

		// time
		setTime(bytes);

		// type
		byte[] tbytes = buffer2.putShort(0, type).array();
		bytes[8] = tbytes[0];
		bytes[9] = tbytes[1];

		// code
		byte[] cbytes = buffer2.putShort(0, code).array();
		bytes[10] = cbytes[0];
		bytes[11] = cbytes[1];
		// value

		byte[] vbytes = buffer4.putInt(0, value).array();
		bytes[12] = vbytes[0];
		bytes[13] = vbytes[1];
		bytes[14] = vbytes[2];
		bytes[15] = vbytes[3];

		for (byte b : bytes) {
			System.out.print(b + " ");
		}
		System.out.println();
		return bytes;
	}

	/**
	 * set time
	 * 
	 * @param bytes
	 */
	public static void setTime(byte[] bytes) {
		long seconds = System.currentTimeMillis() / 1000;
		int sec = (int) seconds;
		int microseconds = (int) (System.nanoTime() % 1000000000);
		int mic = microseconds / 1000;

		byte[] sbytes = buffer4.putInt(0, sec).array();
		for (int i = 0; i < 4; i++) {
			bytes[i] = sbytes[i];
		}

		byte[] mbytes = buffer4.putInt(0, mic).array();
		for (int i = 0; i < 4; i++) {
			bytes[i + 4] = mbytes[i];
		}
	}

	public static void main(String[] args) {
		long start = System.currentTimeMillis();
		String[] events = new String[9];
		events[0] = "sendevent /dev/input/event1 3 57 0";
		events[1] = "sendevent /dev/input/event1 3 53 " + 300;
		events[2] = "sendevent /dev/input/event1 3 54 " + 4;
		events[3] = "sendevent /dev/input/event1 3 58 46 ";
		events[4] = "sendevent /dev/input/event1 3 50 4";
		events[5] = "sendevent /dev/input/event1 0 2 0";
		events[6] = "sendevent /dev/input/event1 0 0 0";
		events[7] = "sendevent /dev/input/event1 0 2 0";
		events[8] = "sendevent /dev/input/event1 0 0 0";

		try {
			OutputStream out = new FileOutputStream("/dev/input/event1");
			for (String event : events) {
				byte[] bytes = getSendArgs(event);
				out.write(bytes);
				out.flush();
			}
			out.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

		long end = System.currentTimeMillis();
		System.out.println("use time:" + (end - start));
	}
}

可以工作吗

How to use this file? to throw it instead of sendevent.c? or run this file on a computer? or do you have another solution to slow sendevent? thanks in advance