/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.authorwjf.bounce;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.math.BigInteger;
import java.util.concurrent.ConcurrentHashMap;
import java.util.ArrayList;
import java.util.UUID;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.json.JSONException;
import org.json.JSONObject;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothServerSocket;
import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
/**
* This class does all the work for setting up and managing Bluetooth
* connections with other devices. It has a thread that listens for
* incoming connections, a thread for connecting with a device, and a
* thread for performing data transmissions when connected.
*/
public class BluetoothChatService {
// Debugging
private static final String TAG = "BluetoothChatService";
private static final boolean D = true;
// Name for the SDP record when creating server socket
private static final String NAME_SECURE = "BluetoothChatSecure";
private static final String NAME_INSECURE = "BluetoothChatInsecure";
// Unique UUID for this application
public static final UUID MY_UUID_SECURE =
UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
public static final UUID MY_UUID_INSECURE =
UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
// Member fields
private final BluetoothAdapter mAdapter;
private final Handler mHandler;
private AcceptThread mSecureAcceptThread;
private AcceptThread mInsecureAcceptThread;
private ConnectThread mConnectThread;
private ConnectedThread mConnectedThread;
private int mState;
private double MAFval = 0.000001;
private double VSS = 0.000001;
public static long last_data_collection = 0;
public static boolean end_game = false;
public static double currentMPG = 0;
public static ArrayList<Double> allMPG = new ArrayList<Double>();
private static double averageMPG = 0;
private static double milesTraveled = 0;
private static double gallonsUsed = 0;
private static long lastTime = 0;
public static final double KILOMETERS_IN_A_MILE = 1.609344;
private static ConcurrentHashMap<String, String> mapValues;
// Constants that indicate the current connection state
public static final int STATE_NONE = 0; // we're doing nothing
public static final int STATE_LISTEN = 1; // now listening for incoming connections
public static final int STATE_CONNECTING = 2; // now initiating an outgoing connection
public static final int STATE_CONNECTED = 3; // now connected to a remote device
/**
* Constructor. Prepares a new BluetoothChat session.
* @param context The UI Activity Context
* @param handler A Handler to send messages back to the UI Activity
*/
public BluetoothChatService(Context context, Handler handler) {
mAdapter = BluetoothAdapter.getDefaultAdapter();
mState = STATE_NONE;
mHandler = handler;
mapValues = new ConcurrentHashMap<String, String>();
}
/**
* Set the current state of the chat connection
* @param state An integer defining the current connection state
*/
private synchronized void setState(int state) {
mState = state;
// Give the new state to the Handler so the UI Activity can update
// mHandler.obtainMessage(BluetoothChat.MESSAGE_STATE_CHANGE, state, -1).sendToTarget();
}
/**
* Return the current connection state. */
public synchronized int getState() {
return mState;
}
/**
* Start the chat service. Specifically start AcceptThread to begin a
* session in listening (server) mode. Called by the Activity onResume() */
public synchronized void start() {
// Cancel any thread attempting to make a connection
if (mConnectThread != null) {
mConnectThread.cancel();
mConnectThread = null;
}
// Cancel any thread currently running a connection
if (mConnectedThread != null) {
mConnectedThread.cancel();
mConnectedThread = null;
}
setState(STATE_LISTEN);
// Start the thread to listen on a BluetoothServerSocket
/*if (mSecureAcceptThread == null) {
mSecureAcceptThread = new AcceptThread(true);
mSecureAcceptThread.start();
}*/
if (mInsecureAcceptThread == null) {
mInsecureAcceptThread.start();
}
}
/**
* Start the ConnectThread to initiate a connection to a remote device.
* @param device The BluetoothDevice to connect
* @param secure Socket Security type - Secure (true) , Insecure (false)
*/
public synchronized void connect(BluetoothDevice device, boolean secure) {
// Cancel any thread attempting to make a connection
if (mState == STATE_CONNECTING) {
if (mConnectThread != null) {
mConnectThread.cancel();
mConnectThread = null;
}
}
// Cancel any thread currently running a connection
if (mConnectedThread != null) {
mConnectedThread.cancel();
mConnectedThread = null;
}
// Start the thread to connect with the given device
mConnectThread = new ConnectThread(device, secure);
mConnectThread.start();
setState(STATE_CONNECTING);
}
/**
* Start the ConnectedThread to begin managing a Bluetooth connection
* @param socket The BluetoothSocket on which the connection was made
* @param device The BluetoothDevice that has been connected
*/
public synchronized void connected(BluetoothSocket socket, BluetoothDevice
device, final String socketType) {
// Cancel the thread that completed the connection
if (mConnectThread != null) {
mConnectThread.cancel();
mConnectThread = null;
}
// Cancel any thread currently running a connection
if (mConnectedThread != null) {
mConnectedThread.cancel();
mConnectedThread = null;
}
// Cancel the accept thread because we only want to connect to one device
if (mSecureAcceptThread != null) {
mSecureAcceptThread.cancel();
mSecureAcceptThread = null;
}
if (mInsecureAcceptThread != null) {
mInsecureAcceptThread.cancel();
mInsecureAcceptThread = null;
}
// Start the thread to manage the connection and perform transmissions
mConnectedThread = new ConnectedThread(socket, socketType);
mConnectedThread.start();
// Send the name of the connected device back to the UI Activity
Message msg = mHandler.obtainMessage(BluetoothChat.MESSAGE_DEVICE_NAME);
Bundle bundle = new Bundle();
bundle.putString(BluetoothChat.DEVICE_NAME, device.getName());
msg.setData(bundle);
mHandler.sendMessage(msg);
setState(STATE_CONNECTED);
}
/**
* Stop all threads
*/
public synchronized void stop() {
if (D) Log.d(TAG, "stop");
if (mConnectThread != null) {
mConnectThread.cancel();
mConnectThread = null;
}
if (mConnectedThread != null) {
mConnectedThread.cancel();
mConnectedThread = null;
}
if (mSecureAcceptThread != null) {
mSecureAcceptThread.cancel();
mSecureAcceptThread = null;
}
if (mInsecureAcceptThread != null) {
mInsecureAcceptThread.cancel();
mInsecureAcceptThread = null;
}
setState(STATE_NONE);
}
/**
* Write to the ConnectedThread in an unsynchronized manner
* @param out The bytes to write
* @see ConnectedThread#write(byte[])
*/
public void write(byte[] out) {
// Create temporary object
ConnectedThread r;
// Synchronize a copy of the ConnectedThread
synchronized (this) {
if (mState != STATE_CONNECTED) return;
r = mConnectedThread;
}
// Perform the write unsynchronized
r.write(out);
}
/**
* Used to obtain data so other services can calculate quantities.
* Valid values to retrieve are the following:
* rpm
* speed
* intakeTemp
* MAF
* runSec
* numWarmup
* baro
* ambTemp
* throttle
*/
public static String retrieveDatum(String key) {
return mapValues.get(key);
}
/**
* Indicate that the connection attempt failed and notify the UI Activity.
*/
private void connectionFailed() {
// Send a failure message back to the Activity
Message msg = mHandler.obtainMessage(BluetoothChat.MESSAGE_TOAST);
Bundle bundle = new Bundle();
bundle.putString(BluetoothChat.TOAST, "Unable to connect device");
msg.setData(bundle);
mHandler.sendMessage(msg);
// Start the service over to restart listening mode
BluetoothChatService.this.start();
}
/**
* Indicate that the connection was lost and notify the UI Activity.
*/
private void connectionLost() {
// Send a failure message back to the Activity
Message msg = mHandler.obtainMessage(BluetoothChat.MESSAGE_TOAST);
Bundle bundle = new Bundle();
bundle.putString(BluetoothChat.TOAST, "Device connection was lost");
msg.setData(bundle);
mHandler.sendMessage(msg);
// Start the service over to restart listening mode
BluetoothChatService.this.start();
}
/**
* This thread runs while listening for incoming connections. It behaves
* like a server-side client. It runs until a connection is accepted
* (or until cancelled).
*/
private class AcceptThread extends Thread {
// The local server socket
private final BluetoothServerSocket mmServerSocket;
private String mSocketType;
public AcceptThread(boolean secure) {
BluetoothServerSocket tmp = null;
mSocketType = secure ? "Secure":"Insecure";
// Create a new listening server socket
try {
if (secure) {
tmp = mAdapter.listenUsingRfcommWithServiceRecord(NAME_SECURE,
MY_UUID_SECURE);
} else {
tmp = mAdapter.listenUsingInsecureRfcommWithServiceRecord(
NAME_INSECURE, MY_UUID_INSECURE);
}
} catch (IOException e) {
Log.e(TAG, "Socket Type: " + mSocketType + "listen() failed", e);
}
mmServerSocket = tmp;
}
public void run() {
setName("AcceptThread" + mSocketType);
BluetoothSocket socket = null;
// Listen to the server socket if we're not connected
while (mState != STATE_CONNECTED) {
try {
// This is a blocking call and will only return on a
// successful connection or an exception
socket = mmServerSocket.accept();
} catch (IOException e) {
Log.e(TAG, "Socket Type: " + mSocketType + "accept() failed", e);
break;
}
// If a connection was accepted
if (socket != null) {
synchronized (BluetoothChatService.this) {
switch (mState) {
case STATE_LISTEN:
case STATE_CONNECTING:
// Situation normal. Start the connected thread.
connected(socket, socket.getRemoteDevice(),
mSocketType);
break;
case STATE_NONE:
case STATE_CONNECTED:
// Either not ready or already connected. Terminate new socket.
try {
socket.close();
} catch (IOException e) {
Log.e(TAG, "Could not close unwanted socket", e);
}
break;
}
}
}
}
}
public void cancel() {
try {
mmServerSocket.close();
} catch (IOException e) {
Log.e(TAG, "Socket Type" + mSocketType + "close() of server failed", e);
}
}
}
/**
* This thread runs while attempting to make an outgoing connection
* with a device. It runs straight through; the connection either
* succeeds or fails.
*/
private class ConnectThread extends Thread {
private final BluetoothSocket mmSocket;
private final BluetoothDevice mmDevice;
private String mSocketType;
public ConnectThread(BluetoothDevice device, boolean secure) {
mmDevice = device;
BluetoothSocket tmp = null;
mSocketType = secure ? "Secure" : "Insecure";
// Get a BluetoothSocket for a connection with the
// given BluetoothDevice
try {
Method m = device.getClass().getMethod("createInsecureRfcommSocket", new Class[] {int.class});
tmp = (BluetoothSocket) m.invoke(device, 1);
} catch (IllegalArgumentException e) {
Log.e(TAG, "IllegalArgumentException: " + e);
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mmSocket = tmp;
}
public void run() {
setName("ConnectThread" + mSocketType);
// Always cancel discovery because it will slow down a connection
mAdapter.cancelDiscovery();
// Make a connection to the BluetoothSocket
try {
// This is a blocking call and will only return on a
// successful connection or an exception
mmSocket.connect(); // THIS LINE IS BROKEN
} catch (IOException e) {
// Close the socket
Log.e(TAG, "Exception at " + e);
try {
mmSocket.close();
} catch (IOException e2) {
Log.e(TAG, "unable to close() " + mSocketType +
" socket during connection failure", e2);
}
connectionFailed();
return;
}
// Reset the ConnectThread because we're done
synchronized (BluetoothChatService.this) {
mConnectThread = null;
}
// Start the connected thread
connected(mmSocket, mmDevice, mSocketType);
}
public void cancel() {
try {
mmSocket.close();
} catch (IOException e) {
Log.e(TAG, "close() of connect " + mSocketType + " socket failed", e);
}
}
}
/**
* This thread runs during a connection with a remote device.
* It handles all incoming and outgoing transmissions.
*/
private class ConnectedThread extends Thread {
private final BluetoothSocket mmSocket;
private final InputStream mmInStream;
private final OutputStream mmOutStream;
private final BufferedReader mmInStreamBuf;
public ConnectedThread(BluetoothSocket socket, String socketType) {
mmSocket = socket;
InputStream tmpIn = null;
OutputStream tmpOut = null;
// Get the BluetoothSocket input and output streams
try {
tmpIn = socket.getInputStream();
tmpOut = socket.getOutputStream();
} catch (IOException e) {
Log.e(TAG, "temp sockets not created", e);
}
mmInStream = tmpIn;
mmOutStream = tmpOut;
mmInStreamBuf = new BufferedReader(new InputStreamReader(tmpIn));
}
private double calculateMPG() {
double mpg = (710.7 * VSS) / MAFval;
return mpg;
}
private class postDataTask extends AsyncTask<String, Integer, Integer> {
@Override
protected Integer doInBackground(String... params) {
try {
HttpClient client = new DefaultHttpClient();
double cur_mpg = calculateMPG();
//String getURL = "http://omnidrive.herokuapp.com/data?fbid=" + Main.fbid + "&highscore=" + cur_mpg;
currentMPG = cur_mpg;
allMPG.add(currentMPG);
/*for(String out: mapValues.keySet()) {
getURL += "&" + out + "=" + mapValues.get(out);
}
System.out.println(getURL);*/
mapValues.clear();
/* Dont send MPG every time; wait until a number of values are accumulated and then send them all at once */
if (allMPG.size() > 30) {
String getURL = "http://www.omnidrive.io/api/?fbid=" + Main.fbid + "&mpgs=" + allMPG.toString().replaceAll("\\s", "");
getURL = getURL.replace("[", "");
getURL = getURL.replace("]", "");
HttpGet get = new HttpGet(getURL);
HttpResponse responseGet = client.execute(get);
}
last_data_collection = System.currentTimeMillis();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return 0;
}
}
private void postData() {
(new postDataTask()).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, "");
}
private void updateAverageMPG() {
if(!mapValues.containsKey("speed")) return;
if(lastTime == 0) {
lastTime = System.currentTimeMillis();
return;
}
double instantMPG = calculateMPG();
double travelMiles = Double.parseDouble(mapValues.get("speed")) * (System.currentTimeMillis() - lastTime) / KILOMETERS_IN_A_MILE / 3600 / 1000;
double usedGallons = milesTraveled / instantMPG;
lastTime = System.currentTimeMillis();
milesTraveled += travelMiles;
gallonsUsed += usedGallons;
if(gallonsUsed != 0) {
averageMPG = milesTraveled / gallonsUsed;
}
}
public void run() {
byte[] buffer = new byte[1024];
int bytes = 0;
last_data_collection = System.currentTimeMillis();
// Keep listening to the InputStream while connected
while (true) {
try {
// Read from the InputStream
String ln = mmInStreamBuf.readLine();
if (System.currentTimeMillis() - last_data_collection > 12000) {
end_game = true;
try {
HttpClient client = new DefaultHttpClient();
String getURL = "http://www.omnidrive.io/api/?fbid=" + Main.fbid + "&mpgs=" + allMPG.toString().replaceAll("\\s", "");
getURL = getURL.replace("[", "");
getURL = getURL.replace("]", "");
HttpGet get = new HttpGet(getURL);
HttpResponse responseGet = client.execute(get);
} catch (Exception e) {
Log.e(TAG, "FAILURE");
}
}
if(ln.length() > 6) {
try {
String header = ln.substring(0, 5);
String rest = ln.substring(6).replace(" ", "");
long value = new BigInteger(rest, 16).longValue();
if(header.equals("41 04")) {
ln = "Load: " + (value*100/255) + " %";
mapValues.put("engine load", Long.toString(value*100/255));
} else if(header.equals("41 0C")) {
ln = "Engine RPM: " + (value / 4) + " rpm";
mapValues.put("rpm", Long.toString(value/4));
} else if(header.equals("41 0D")) {
ln = "Speed: " + value + " kph";
mapValues.put("speed", Long.toString(value));
VSS = value;
} else if(header.equals("41 0F")) {
ln = "Intake air temperature: " + (value-40) + " deg C";
mapValues.put("intakeTemp", Long.toString(value-40));
} else if(header.equals("41 10")) {
ln = "MAF: " + (value) + "hundreds of g/s";
MAFval = value;
mapValues.put("MAF", Long.toString(value));
} else if(header.equals("41 1F")) {
ln = "Runtime seconds: " + (value) + " seconds";
mapValues.put("runSec", Long.toString(value));
} else if(header.equals("41 30")) {
ln = "Number of warmups: " + value;
mapValues.put("numWarmup", Long.toString(value));
} else if(header.equals("41 33")) {
ln = "Barometer: " + value + " kPa";
mapValues.put("baro", Long.toString(value));
} else if(header.equals("41 46")) {
ln = "Ambient Temp: " + (value - 40) + " deg C";
mapValues.put("ambTemp", Long.toString(value-40));
} else if(header.equals("41 49")) {
ln = "Throttle: " + (value * 100 / 255) + " %";
mapValues.put("throttle", Long.toString(value * 100 / 255));
updateAverageMPG();
postData();
}
} catch (NumberFormatException ignored) { }
}
buffer = ln.getBytes();
bytes = buffer.length;
//System.out.println(ln);
//bytes = mmInStream.read(buffer);
// Send the obtained bytes to the UI Activity
mHandler.obtainMessage(BluetoothChat.MESSAGE_READ, bytes, -1, buffer).sendToTarget();
} catch (IOException e) {
Log.e(TAG, "disconnected", e);
connectionLost();
// Start the service over to restart listening mode
BluetoothChatService.this.start();
break;
}
}
}
/**
* Write to the connected OutStream.
* @param buffer The bytes to write
*/
public void write(byte[] buffer) {
try {
byte[] actualBuffer = new byte[buffer.length + 1];
for(int i = 0; i < buffer.length; i++)
actualBuffer[i] = buffer[i];
actualBuffer[buffer.length] = 0x0d;
mmOutStream.write(actualBuffer);
mmOutStream.flush();
// Share the sent message back to the UI Activity
//mHandler.obtainMessage(BluetoothChat.MESSAGE_WRITE, -1, -1, buffer)
//.sendToTarget();
} catch (IOException e) {
Log.e(TAG, "Exception during write", e);
}
}
public void cancel() {
try {
mmSocket.close();
} catch (IOException e) {
Log.e(TAG, "close() of connect socket failed", e);
}
}
}
}