Develop Reference

Bluetooth module JDY-08 not finding Android device

I have 1 JDY-08 MASTER that scans looking for myDeviceName and triggers a function when it finds that device name.
String get_ble_scan_data(void){
String final_result = "";
String result = "";//reset and declare
String extract = set_ble("AT+SCAN1");//scan for device name, signal strength and mac address
String extract2 = set_ble("AT+GETDCD");//get number of device found
//now we are going to check for which extraction has the data we interested in
if((extract.length() > threshold or extract.length() > threshold)){
result = extract;//pass extract as result
if(extract2.length() > extract.length()){//check which is bigger
result = extract2;//pass extract2 as result if its bigger in length than extract
}
}
if(result.length() > 0){//add filter and execution here
String filter = result;//copy
result = "";// reset
while(filter.indexOf('=') > -1){// we use the char = as a seperator
filter = filter.substring(filter.indexOf('=') + 1);//remove strings before seperator
result += filter.substring(0, filter.indexOf('\n')) + ' '; //extract till newline character
filter = filter.substring(filter.indexOf(result) + result.length());//remove extracted result so we go on to next extraction of same result if there is more device picked up
detect
}
result.trim();//remove spaces at the end or start if any
final_result = result;
}
return final_result;
}
void ble_response(String search_result){
String scan_result = search_result;//do bluetooth scan
if(scan_result.indexOf(myDeviceName) > -1 ){//when data present in scan and it contains desired key
if(scan_result.indexOf(' ') == -1){//if only one ble is picked up
ble_macaddress = scan_result.substring(0, scan_result.indexOf(','));
scan_result = scan_result.substring(scan_result.indexOf(ble_macaddress) + 1 + ble_macaddress.length(), scan_result.length());//remove mac address
ble_strength = scan_result.substring(0, scan_result.indexOf(','));
ble_name = scan_result.substring(scan_result.indexOf(ble_strength) + 1 + ble_strength.length(), scan_result.length());//remove mac address
if(((int) ble_strength.toFloat()) >= trigger_threshold and ble_name == key){
trigger_action();
}
}else{//if multiple ble is picked up
String cut = "";
while(scan_result.indexOf(',') > -1){//while there is still result to be processed
cut = scan_result.substring(0, scan_result.indexOf(' '));
scan_result = scan_result.substring(scan_result.indexOf(cut) + 1 + cut.length(), scan_result.length());
if(cut.indexOf(myDeviceName) > -1){//only analyze if it contains key
ble_macaddress = cut.substring(0, cut.indexOf(','));
cut = cut.substring(cut.indexOf(ble_macaddress) + 1 + ble_macaddress.length(), cut.length());//remove mac address
ble_strength = cut.substring(0, cut.indexOf(','));
ble_name = cut.substring(cut.indexOf(ble_strength) + 1 + ble_strength.length(), cut.length());//remove mac address
if(((int) ble_strength.toFloat()) >= trigger_threshold and ble_name == key){
trigger_action();
break;
}
}
}
}
}
If I use another JDY-08 device with one button, It finds the device and triggers the action:
if(!digitalRead(11)){//if button is pushed///////
delay(500);
set_ble("AT+NAMEmyDeviceName");//change ble name
while(!digitalRead(11));//do nothing while button is still pressed
delay(2000);//allow time before name change back
set_ble("AT+NAMEJDY-08");//change name back
But when I use the phone It doesn´t trigger the action:
private void advertise(){
final BluetoothLeAdvertiser advertiser = BluetoothAdapter.getDefaultAdapter().getBluetoothLeAdvertiser();
final AdvertiseSettings settings = new AdvertiseSettings.Builder()
.setAdvertiseMode( AdvertiseSettings.ADVERTISE_MODE_LOW_LATENCY )
.setTxPowerLevel( AdvertiseSettings.ADVERTISE_TX_POWER_HIGH )
.setConnectable( true )
.build();
final AdvertiseData data = new AdvertiseData.Builder()
.setIncludeDeviceName( true )
.build();
final AdvertiseCallback advertisingCallback = new AdvertiseCallback() {
#Override
public void onStartSuccess(AdvertiseSettings settingsInEffect) {
super.onStartSuccess(settingsInEffect);
}
#Override
public void onStartFailure(int errorCode) {
Log.e( "BLE", "Advertising onStartFailure: " + errorCode );
super.onStartFailure(errorCode);
}
};
advertiser.startAdvertising(settings,data,advertisingCallback);
final Handler myTimerHandler = new Handler();
myTimerHandler.postDelayed(
new Runnable()
{
#Override
public void run(){
advertiser.stopAdvertising(advertisingCallback);
}
} , 30000);
}
I also use the intent with BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE.
Using NRFConnect app, I can see how the JDY-08 Button device changes the device name (That triggers the action on the JDY-08 MASTER). I can also see the Android device with myDeviceName but this does not trigger the action. Am I missing something in the Android app?

The problem was that the JDY-Master only received the name of JDY devices. All other devices show mac address and signal strength only.

error when get value from marketdataincremental refresh

I got an error in my quickfixj Application. First, I got an error like this:
Out of order repeating group members
After that, I added this text into my initiator.config:
ValidateUserDefinedFields=N
ValidateIncomingMessage=N
But now I got another error in my application:
quickfix.FieldNotFound: Field was not found in message, field=55
at quickfix.FieldMap.getField(FieldMap.java:223)
at quickfix.FieldMap.getString(FieldMap.java:237)
at com.dxtr.fastmatch.marketdatarequestapps.TestMarketdataRequest.fromApp(TestMarketdataRequest.java:38)
at quickfix.Session.fromCallback(Session.java:1847)
at quickfix.Session.verify(Session.java:1791)
at quickfix.Session.verify(Session.java:1862)
at quickfix.Session.next(Session.java:1047)
at quickfix.Session.next(Session.java:1204)
at quickfix.mina.SingleThreadedEventHandlingStrategy$SessionMessageEvent.processMessage(SingleThreadedEventHandlingStrategy.java:163)
at quickfix.mina.SingleThreadedEventHandlingStrategy.block(SingleThreadedEventHandlingStrategy.java:113)
at quickfix.mina.SingleThreadedEventHandlingStrategy.lambda$blockInThread$1(SingleThreadedEventHandlingStrategy.java:145)
at quickfix.mina.SingleThreadedEventHandlingStrategy$ThreadAdapter$RunnableWrapper.run(SingleThreadedEventHandlingStrategy.java:267)
at java.lang.Thread.run(Thread.java:748)
My code for get value of symbols is :
public void fromApp(quickfix.Message message, SessionID sessionID)
throws FieldNotFound, IncorrectDataFormat, IncorrectTagValue, UnsupportedMessageType {
try {
String symbol = message.getString(Symbol.FIELD);
System.out.println(" FromApp " + message);
message.getString(TransactTime.FIELD);
// String seqNo = message.getString(MsgSeqNum.FIELD);
double bid = message.getDouble(MDEntryPx.FIELD);
double ask = message.getDouble(MDEntryPx.FIELD);
// System.out.println(seqNo + " " + message);
} catch (FieldNotFound fieldNotFound) {
fieldNotFound.printStackTrace();
}
}
I have also using this code
public void onMessage (MarketDataIncrementalRefresh message, SessionID sessionID) throws FieldNotFound{
try
{
MDReqID mdreqid = new MDReqID();
SendingTime sendingtime = new SendingTime();
NoMDEntries nomdentries = new NoMDEntries();
quickfix.fix42.MarketDataIncrementalRefresh.NoMDEntries group
= new quickfix.fix42.MarketDataIncrementalRefresh.NoMDEntries();
MDUpdateAction mdupdateaction = new MDUpdateAction();
DeleteReason deletereason = new DeleteReason();
MDEntryType mdentrytype = new MDEntryType();
MDEntryID mdentryid = new MDEntryID();
Symbol symbol = new Symbol();
MDEntryOriginator mdentryoriginator = new MDEntryOriginator();
MDEntryPx mdentrypx = new MDEntryPx();
Currency currency = new Currency();
MDEntrySize mdentrysize = new MDEntrySize();
ExpireDate expiredate = new ExpireDate();
ExpireTime expiretime = new ExpireTime();
NumberOfOrders numberoforders = new NumberOfOrders();
MDEntryPositionNo mdentrypositionno = new MDEntryPositionNo();
message.getField(nomdentries);
message.getField(sendingtime);
message.getGroup(1, group);
int list = nomdentries.getValue();
for (int i = 0; i < list; i++)
{
message.getGroup(i + 1, group);
group.get(mdupdateaction);
if (mdupdateaction.getValue() == '2')
System.out.println("Enter");
group.get(deletereason);
group.get(mdentrytype);
group.get(mdentryid);
group.get(symbol);
group.get(mdentryoriginator);
if (mdupdateaction.getValue() == '0')
group.get(mdentrypx);
group.get(currency);
if (mdupdateaction.getValue() == '0')
group.get(mdentrysize);
}
System.out.printf("Got Symbol {0} Price {1}",
symbol.getValue(), mdentrypx.getValue());
}catch (Exception ex)
{
System.out.println("error" + ex);
}
but i also get error like this
quickfix.FieldNotFound: Field was not found in message, field=55
at quickfix.FieldMap.getField(FieldMap.java:223)
at quickfix.FieldMap.getString(FieldMap.java:237)
at com.dxtr.fastmatch.marketdatarequestapps.TestMarketdataRequest.fromApp(TestMarketdataRequest.java:39)
at quickfix.Session.fromCallback(Session.java:1847)
at quickfix.Session.verify(Session.java:1791)
at quickfix.Session.verify(Session.java:1862)
at quickfix.Session.next(Session.java:1047)
at quickfix.Session.next(Session.java:1204)
at quickfix.mina.SingleThreadedEventHandlingStrategy$SessionMessageEvent.processMessage(SingleThreadedEventHandlingStrategy.java:163)
at quickfix.mina.SingleThreadedEventHandlingStrategy.block(SingleThreadedEventHandlingStrategy.java:113)
at quickfix.mina.SingleThreadedEventHandlingStrategy.lambda$blockInpacket_write_wait: Connection to 3.13.235.241 port 22: Broken pipe
and here the value i check in my message.log
8=FIX.4.2^A9=0217^A35=X^A34=7291^A49=Fastmatch1^A52=20200401-10:47:59.833^A56=MDValueTrade2UAT1^A262=VT_020^A268=02^A279=2^A55=GBP/CHF^A269=0^A278=1140851192^A270=1.19503^A271=02000000^A279=0^A55=GBP/CHF^A269=0^A278=1140851194^A270=1.19502^A271=06000000^A10=114^A
my broker have send to me the price and etc
My question is: how to fix my problem from this code ?

First, I got an error like this:
Out of order repeating group members
Your data dictionary doesn't match your counterparty's. Fix that and this will go away.
After that, I added this text into my initiator.config:
ValidateUserDefinedFields=N
ValidateIncomingMessage=N
This did not fix anything -- it HIDES your actual problem and has you looking at a new fake problem.
What you need to do:
Your configuration has this, right?
UseDataDictionary=Y
DataDictionary=path/to/FIXnn.xml
# or if FIX5:
AppDataDictionary=path/to/FIX5n.xml
TransportDataDictionary=path/to/FIXT.xml
Find your counterparty's documentation, and make sure your xml file's messages and fields match what they say they're going to send you. Make sure all repeating groups have the same fields in the same order.
Here is some documentation about how the Data Dictionary xml file is structured. It's pretty easy.

What does the Redis 'redis.publish()' method do?

What does redis.publish(); method do in the following module.
redis.publish("WordCountTopology", exclamatedWord.toString() + "|" + Long.toString(count));
public void execute(Tuple tuple)
{
String word = tuple.getString(0);
StringBuilder exclamatedWord = new StringBuilder();
exclamatedWord.append(word).append("!!!");
_collector.emit(tuple, new Values(exclamatedWord.toString()));
long count = 30;
redis.publish("WordCountTopology", exclamatedWord.toString() + "|" + Long.toString(count));
}

It publishes the string (ExclamatedWord + "|30") to a Redis channel called WordCountTopology - subscribers to that channel will get the message once redis.publish executes.
For more information about Redis' Pub/Sub see: http://redis.io/topics/pubsub

toByeArray doesn't exist in my java protobuffer

I am using protoc version 2.5 and the protobuf-java-2.5.0.jar file to compile the following protobuff
// This is the type for a publisher looking to sell digital real-estate
message Publisher {
required string name = 1;
required int32 id = 2; // Unique ID number for this person.
required double ask_price = 3;
optional string email = 4;
enum MediaType {
WEB = 0;
NEWSPAPER = 1;
MAGAZINE = 2;
}
optional MediaType media = 5;
enum PhoneType {
MOBILE = 0;
HOME = 1;
WORK = 2;
}
message PhoneNumber {
required string number = 1;
optional PhoneType type = 2 [default = HOME];
}
repeated PhoneNumber phone = 6;
}
I then have the following line in my java code that generates a random Publisher Object by setting the data members on a Publisher.Builder and then calling .build() and returning the result.
Publisher pub = genPubProtoBuf();
However, pub DOES NOT HAVE the method "toByteArray()". pub is clearly a Publisher which extends Generated Message which extends AbstractMessageLite where toByteArray() is a public method, so Publisher should have it as well. Am I missing something obvious and not correctly building my Publisher Object?
Even stranger, when I look at the .java file that holds the generated code for Publisher, I can't find any mention of toByteArray(), there is only the parseFrom(byte[]) method.
EDIT: The code where I'm calling pub.toByteArray is given below:
while (true) {
Publisher pub = genPubProtoBuf();
String key = pub.getName() + pub.getEmail() + pub.getMedia().toString() + pub.getPhone(0);
byte[] byteArr = pub.toByteArray();
KeyedMessage<String, byte[]> data = new KeyedMessage<String, byte[]>("simple-topic", key, byteArr);
producer.send(data);
try {
Thread.sleep(dataProductionInterval);
} catch (InterruptedException ie) {
ie.printStackTrace();
}
}

read IRC data correctly in Processing

I am trying to read IRC and pull data from individual IRC messages in Processing. You can see the code (also with twitter library, ignore that) and I need some pointers on how I can pull the data out in the format of Nick:Message so it can be displayed in a visualization.
//Twitter
import twitter4j.conf.*;
import twitter4j.*;
import twitter4j.auth.*;
import twitter4j.api.*;
import java.util.*;
// Import the net libraries
import processing.net.*;
// Declare a client
Client client;
Twitter twitter;
String searchString = "god";
List<Status> tweets;
String server = "irc.twitch.tv";
String nick = "NugShow";
//String user = "simple_bot";
int port = 6667;
String channel = "#nugshow";
String password = "xx";
String in = "butt";
String checkFor;
//bools
Boolean isLive = false;
int privMsgIndex;
int atIndex;
String playerSubstring;
// The channel which the bot will joString channel = "#irchacks";
int currentTweet;
void setup()
{
size(800,600);
frameRate(60);
ConfigurationBuilder cb = new ConfigurationBuilder();
cb.setOAuthConsumerKey("xx");
cb.setOAuthConsumerSecret("xx");
cb.setOAuthAccessToken("xx");
cb.setOAuthAccessTokenSecret("xx");
TwitterFactory tf = new TwitterFactory(cb.build());
twitter = tf.getInstance();
getNewTweets();
currentTweet = 0;
thread("refreshTweets");
thread("loopChat");
connectToServer();
//IRC
}
void draw()
{
if (client.available() > 0) {
String in = client.readString();
println(in);
}
if (isLive == false){
if (client.available() > 0) {
}
} else {
}
/*
fill(0, 40);
rect(0, 0, width, height);
currentTweet = currentTweet + 1;
if (currentTweet >= tweets.size())
{
currentTweet = 0;
}
Status status = tweets.get(currentTweet);
fill(200);
text(status.getText(), random(width), random(height), 300, 200);
delay(100);
*/
}
void joinChannel() {
String in = client.readString();
client.write( "JOIN " + channel + "\n\r" );
client.clear();
in = client.readString();
println(in);
if (in != null){
//println("Recieved data");
println(in);
//String inString = myClient.readStringUntil("");
isLive = true;
println(isLive);
}
}
void connectToServer()
{
client = new Client(this, server , 6667);
client.write( "PASS " + password + "\n\r" );
println(password + " sent!");
client.write( "NICK " + nick + "\n\r" );
println(nick + " sent!");
joinChannel();
}
void getNewTweets()
{
try
{
Query query = new Query(searchString);
QueryResult result = twitter.search(query);
tweets = result.getTweets();
}
catch (TwitterException te)
{
System.out.println("Failed to search tweets: " + te.getMessage());
System.exit(-1);
}
}
void refreshTweets()
{
while (true)
{
getNewTweets();
println("Updated Tweets");
delay(30000);
}
}
void loopChat()
{
while (true)
{
if (privMsgIndex != 0){
println(privMsgIndex);
//privMsgIndex = privMsgIndex - 15;
atIndex = in.indexOf("#");
println(atIndex);
//atIndex = atIndex + 1;
playerSubstring = in.substring(atIndex, privMsgIndex);
println(playerSubstring);
} else {
println("looped");
}
delay(300);
client.clear();
in = null;
}
}
void keyPressed()
{
}
void tweet()
{
try
{
Status status = twitter.updateStatus("This is a tweet sent from Processing!");
System.out.println("Status updated to [" + status.getText() + "].");
}
catch (TwitterException te)
{
System.out.println("Error: "+ te.getMessage());
}
}
The chat commands look like this: :nugshow!nugshow#nugshow.testserver.local PRIVMSG #nugshow :dddd where nugshow is the username, #nugshow is the channel, and dddd is the message. I need to get it into the format of nugshow: dddd.
there is a lot of header information that I'm not sure how to strip out of client.recieved buffer as well, it looks like this:
:testserver.local 001 nugshow :Welcome, GLHF!
:testserver.local 002 nugshow :Your host is testserver.local
:testserver.local 003 nugshow :This server is rather new
:testserver.local 004 nugshow :-
:testserver.local 375 nugshow :-
:testserver.local 372 nugshow :You are in a maze of twisty passages, all alike.
:testserver.local 376 nugshow :>
:nugshow!nugshow#nugshow.testserver.local JOIN #nugshow
:nugshow.testserver.local 353 nugshow = #nugshow :nugshow
:nugshow.testserver.local 366 nugshow #nugshow :End of /NAMES list
:jtv!jtv#jtv.testserver.local PRIVMSG nugshow :HISTORYEND nugshow

I would not recommend regex here. At least not if you want to be able to catch all types of IRC messages. The key is to look at the message code to know what you can actually get out of the message. As I'm also writing an IRC-client (just for giggles) I have some notes for you.
Be sure to answer any PINGs that the server sends you so you don't get kicked off. As the PING is sent with an identifier, you need to catch that and send it back. A simple way to do this is to check the last line that was sent from the server and substring it.
String line = inputStream.readLine();
if(line.substring(0,4).equals("PING")){
send("PONG " + line.substring(5)); // Assume you have some send-function.
}
This will make sure you don't get kicked off and can proceed to actually stay on a server.
As I mentioned, I do not recommend using regex for this as it would become a RegEx-of-doom. So, what I have done is to just split the line you get and put all the results in a String array.
String[] arr = line.split(" ");
As you know by your own message line you have posted, the IRC protocol separates things with spaces. So splitting at spaces in not all that shabby (we'll get how to deal with actual text in a bit).
The basic structure that is always the same (as far as I can tell) in messages is PREFIX COMMAND PARAM PARAM/TRAILING. So what does this mean? The PREFIX is where the message was sent from. Example ":user!user#host.com". The COMMAND is what the line actually is. You are looking for PRIVMSG here, but there are many, many, others that you might want to take care of. Like JOIN, PART, QUIT, 332 (current topic), 353 (nicks in channel, 404 (unable to send to channel), etc. etc. The PARAM and PARAM/TRAILING will all depend on the COMMAND.
So, what do we gain from splitting at spaces? This:
arr[0] = :user!user#host.com
arr[1] = COMMAND
arr[2] = PARAM
arr[3 onwards] = rest
We can now easily manage every command in it's own needed way.
Without further delay, lets get to your actual question, the PRIVMSG.
I will use this string: ":Chewtoy!chewtoy#stackoverflow.com PRIVMSG #stackoverflow :Ty: I saw your question and thought I should give you an answer."
After doing a split at the spaces, we get the array
arr[0] = :Chewtoy!chewtoy#stackoverflow.com
arr[1] = PRIVMSG
arr[2] = #stackoverflow
arr[3] = :Ty:
arr[4] = I
arr[5] = saw
...
As you can see, everything from 3 and onwards is the message you want. 0-2 is stuff that you need to be able to know who sent what where. My code for getting all this looks like this:
String[] arr = receivedLine.split(" ");
if(arr[1].equals("PRIVMSG")){
String[] usr = arr[0].split(!"); // Get the user, which is in usr[0]. Host in usr[1]
StringBuilder msg = new StringBuilder();
for(int i=3; i<arr.length; i++){ // We know the message starts at arr[3], so start counting from that.
msg.append(arr[i] + " ");
}
String chan = "";
if(arr[2].substring(0,1).equals("#")){ // We need to differentiate between sending to channel and sending a PM. The only difference in this is where the text is sent.
chan = arr[2];
} else{
chan = usr[0].substring(1); // substring(1) because we want Chewtoy, not :Chewtoy
}
// The result here will be:
// <#stackoverflow> Chewtoy: Ty: I saw your question and thought I should give you an answer.
sendItAllToWhereYouWantIt("<" + chan +"> " + usr[0].substring(1) + ": " + msg.substring(1));
}
Hope that helps.