BioharnessWriter.java

package pl.llp.aircasting.sensor.bioharness;

import pl.llp.aircasting.sensor.BluetoothSocketWriter;
import pl.llp.aircasting.util.Constants;

import android.bluetooth.BluetoothSocket;

import java.io.IOException;
import java.io.OutputStream;

public class BioharnessWriter implements BluetoothSocketWriter
{
  private OutputStream outputStream;
  BluetoothSocket socket;

  long last = 0;

  public BioharnessWriter(BluetoothSocket socket)
  {
    this.socket = socket;
  }

  @Override
  public void write(byte[] bytes) throws IOException
  {
    if(outputStream == null)
    {
      outputStream = socket.getOutputStream();
    }
    outputStream.write(bytes);
  }

  @Override
  public void writeCyclic() throws IOException
  {
    long current = System.currentTimeMillis();
    if(current - last > Constants.THREE_SECONDS)
    {
      write(new byte[] { 2, 35, 0, 0, 3 });
      last = System.currentTimeMillis();
    }
  }
}