reposting this question since I didn't get any responses the first time around. Parse doesn't appear to have any simple means of contacting them about this (which is frustrating), so I really hope someone here can help.
I am currently using Parse to create a messaging app. I have two fundamental ParseObjects in addition to the standard ParseUser, a Chatroom and a Message. A Chatroom contains pointers to the two users in the Chatroom. A Message contains the content of the Message, a pointer to the user who posted it, and a pointer to the Chatroom.
First, I create a list of all the Chatrooms that the current user is in. Then, I'm trying to create a second list of the most recent message in all of these Chatrooms (I have made it impossible to make a Chatroom without sending at least one Message first).
My code looks like this:
TextView mostRecent = (TextView) row.findViewById(R.id.mostRecent);
Date dt1 = null;
ParseQuery lastMessage = ParseQuery.getQuery("Message");
ParseObject chatroom = (ParseObject) roomList.get(position);
Log.w("Chatroom ObjectID...", room.getObjectId());
try {
lastMessage.whereEqualTo("chatroom", chatroom.fetchIfNeeded());
List<ParseObject> allMessages = lastMessage.find();
Log.w("# of Messages...", "Size of the list: " + allMessages.size() + ", Count of query: " + allMessages.count());
if (allMessages.size() > 0) {
mostRecent.setText((String) theList.get(theList.size() - 1).get("content"));
dt1 = allMessages.get(allMessages.size() - 1).getCreatedAt();
}
} catch (ParseException err) {
err.printStackTrace();
Log.w("PARSE ERROR", err.getMessage());
}
This code works for every Chatroom where the current user is the one who created the Chatroom and the Message in that Chatroom. However, whenever I have a different user attempt to start a Chatroom and send a Message to the original user, the code fails.
To be clear, the second user successfully creates both a Chatroom and a Message. I've verified that the Chatroom gets successfully added to the original user's list of Chatrooms, and that the Message contains a pointer to the correct Chatroom. However, for whatever reason, the Logs reveal a list size of 0 and a count of 0. I've even tried querying for the second user's exact message on the original user's account, and it claims the thing doesn't exist.
Any ideas? Could this have something to do with ACL? Thanks in advance!
NOTE: I've confirmed that both users are correctly included in the Message's ACL. What gives? Why isn't this working?
You need to wait for the query to fetch the data.
lastMessage.findInBackground(new FindCallback<ParseObject>() {
public void done(List<ParseObject> allMessages, ParseException e) {
if (e == null) {
Log.w("# of Messages...", "Size of the list: " + allMessages.size() + ", Count of query: " + allMessages.count());
} else {
Log.w("Exception thrown", e.getMessage());
}
}
}
Related
I have what it thought would be a simple statestore use case. We loop through a state store every 10s and try to send to a partner, if we receive 404, we try again next intervall.
If we receive 200, we delete the entry from the state store.
In my test (1 entry in statestore) I first let it run a few loops, where we receive 404, just to test that the retry works. When I switch my mock endpoint to return 200, I can see through the logs that both:
stateStore.delete(key) and stateStore.flush() is called. I even confirm after stateStore.delete(key) that stateStore.get(key) returns a null value (tombstone).
However, the next time the punctuator runs (10s), the object is still in the state store and the entire block is called again. it keeps looping like this, without ever deleting the entry in the statestore
#Override
public void punctuate(long l) {
log.info("PeriodicRetryPunctuator started: " + l);
try(KeyValueIterator<String, TestEventObject> iter = stateStore.all()) {
while(iter.hasNext()) {
KeyValue<String, TestEventObject> keyValue = iter.next();
String key = keyValue.key;
TestEventObject event = keyValue.value;
try {
log.info("Event: " + event);
// Sends event over HTTP. Will throw HttpResponseException if 404 is received
eventService.processEvent(event);
stateStore.delete(key);
stateStore.flush();
// Check that statestore returns null
log.info("Check: " + stateStore.get(key));
} catch (HttpResponseException hre) {
log.info("Periodic retry received 404. Retrying at next interval");
}
catch (Exception e) {
e.printStackTrace();
log.error("Exception with periodic retry: {}", e.getMessage());
}
}
}
}
Update:
It seems to be Confluent's encryption libraries that causes these issues. I've done quite an extensive A/B test, and every time it occurs is with Confluent encryption. Without I never experience this issue.
I am trying to send message to an individual user using slack api in Java, but I am not able to. I tried various ways, but none helped. I am able to send messages to channels though but not to user directly.
Following is my code -
public void postToUsers() {
var client = Slack.getInstance().methods();
try {
ChatPostMessageResponse response = Slack.getInstance().methods().chatPostMessage(r -> r
.token("xoxb-2850123307073-2837743345451-e3Y8y4cahtzeLAKIbjUHMMuC")
.channel("U02ABCGV9V")
.text("hello"));
System.out.println("::::" + response.getMessage());
} catch (NoSuchElementException noSuchElementException) {
logger.error("No record for slack notification exists for id: " + id);
);
} catch (IOException | SlackApiException e) {
logger.error("error: {}", e.getMessage(), e);
e.printStackTrace();
);
}
}
Instead of posting to user whose userid I copied in channel above, I see the message under app name in slack. I am not sure what's happening. Following is the response I get -
Message(type=message, subtype=null, team=T02R09Q9125, channel=null, user=U02QMMV6JD9, username=null, text=hello, blocks=null, attachments=null, ts=1639724593.000400, threadTs=null, intro=false, starred=false, wibblr=false, pinnedTo=null, reactions=null, botId=B02QF0PEFQE, botLink=null, displayAsBot=false, botProfile=BotProfile(id=B02QF0PEFQE, deleted=false, name=slack-notification-service, updated=1639470131, appId=A02Q72AKEFR, icons=BotProfile.Icons(image36=https://a.slack-edge.com/80588/img/plugins/app/bot_36.png, image48=https://a.slack-edge.com/80588/img/plugins/app/bot_48.png, image72=https://a.slack-edge.com/80588/img/plugins/app/service_72.png), teamId=T02R09Q9125), icons=null, file=null, files=null, upload=false, parentUserId=null, inviter=null, clientMsgId=null, comment=null, topic=null, purpose=null, edited=null, unfurlLinks=false, unfurlMedia=false, threadBroadcast=false, replies=null, replyCount=null, replyUsers=null, replyUsersCount=null, latestReply=null, subscribed=false, xFiles=null, lastRead=null, root=null, itemType=null, item=null)
Channel coming as null.
Following are the scopes I have given in order to see if it works, but it didn't -
One first would first have to create the conversation:
https://api.slack.com/methods/conversations.create
And then translate from string conversation (name) to conversationId (in case not already known), then it can be addressed in a direct message. See "picking the right conversation". The API has further methods: https://api.slack.com/docs/conversations-api#methods - even if the raw API isn't the Java client, it clearly shows what may be possible, no matter the client.
I am setting up and testing in-app billing. I managed to purchase the android.test.purchased, and it did what it should. But now I need to consume it to continue my testing. The problem is that I can't reach the inventory.
When this is called I get the result.isFaliure() is called and I can't get the inventory.
IabHelper.QueryInventoryFinishedListener _gotInventoryListener = new IabHelper.QueryInventoryFinishedListener() {
#Override
public void onQueryInventoryFinished(IabResult result, Inventory inventory) {
if (_iabHelper == null) return;
if (result.isFailure()) {
Log.d(TAG, "Failed to query inventory: " + result);
return;
}
Log.d(TAG, "Query inventory was successful.");
Purchase premiumPurchase = inventory.getPurchase(SKU_PREMIUM);
_isPremium = (premiumPurchase != null && verifyDeveloperPayload(premiumPurchase));
Log.d(TAG, "User is " + (_isPremium ? "PREMIUM" : "NOT PREMIUM"));
update();
}
};
It logs the error message
Failed to query inventory: IabResult: Error refreshing inventory
(querying owned items). (response: -1003:Purchase signature
verification failed)
The android.test.purchased is still owned - it won't let me buy it again. My phone has network connection so it's not that.
I have NOT uploaded a signed APK to Google Play, does that matter even if I test with googles static ID's?
Solved it...
It seems there are problems with the static purchase ID's.
Here's a sollution I found in THIS thread:
If you have used the android.test.purchased then one way to get rid of the error is to do the following:-
1. Edit Security.java and change the "return false" line in the
verifyPurchase to "return true" - this is temporary, we'll be
putting it back in a minute.
2. In your QueryInventoryFinishedListener, after the "if
(result.isFailure()) {...}" lines add the following to consume and
get rid of your never ending android.test.purchased item:-
if (inventory.hasPurchase(SKU_ANDROID_TEST_PURCHASE_GOOD)) {
mHelper.consumeAsync(inventory.getPurchase(SKU_ANDROID_TEST_PURCHASE_GOOD),null);
}
3. Run your app so the consunmeAsync happens, this gets rid of the
"android.test.purchased" item on the server.
4. Remove the consumeAsync code (or comment it out). Back in the
Security.java, change the "return true" back to "return false".
I found the answer here:
"Here's a recommendation: Make sure that your Billing Key (base64EncodedPublicKey) is properly saved. That was my problem, after all that..."
base64EncodedPublicKey was from another aplication...
It was solution for me.
I am writing a Java program that will listen for PDUs that are being sent across a network, and present information about those PDUs (such as entity state & position within the simulation) to the user.
I currently have one class which is being used to listen for the PDUs being sent over the network (EspduReceiver.java), and another class that I am using to create the GUI that the user will use to interact with the program (Gui.java).
The EspduReceiver.java class currently works as intended- when I run it, it listens for any PDUs that are being sent over the network, and displays information about each individual PDU it receives in the console. The information that it displays includes the entity ID, and its position within the simulation.
However, this method literally just listens for a PDU message, and prints the relevant information about it to the console when it 'hears' one- so the information about the Entity State PDU that is being printed in the console, is not actually stored anywhere in the program at present.
Now, what I would like to do with my Gui.java class, is to create a user interface that will display what I am seeing being printed in the console to the user. I have written the foundation of a class that will do this, but I am having trouble retrieving the data that is being read into my program from the EspduReceiver.java class...
The method that I am using to retrieve the PDU information, and display it in the console currently looks like this:
public static void receivePdu(){
try{
/*Specify the socket to receive the data */
socket = new MulticastSocket(EspduSender.PORT);
address = InetAddress.getByName(EspduSender.DEFAULT_MULTICAST_GROUP);
socket.joinGroup(address);
/*Loop infinitely, receiving datagrams */
while(true){
byte buffer[] = new byte[MAX_PDU_SIZE];
packet = new DatagramPacket(buffer, buffer.length);
socket.receive(packet);
Pdu pdu = pduFactory.createPdu(packet.getData()); /* Commented on 15/04/2014 # 09:15 */
if(pdu != null){
System.out.print("Got PDU of type: " + pdu.getClass().getName());
if(pdu instanceof EntityStatePdu){
EntityID eid = ((EntityStatePdu)pdu).getEntityID();
Vector3Double position = ((EntityStatePdu)pdu).getEntityLocation();
System.out.print(" EID:[" + eid.getSite() + ", " + eid.getApplication() + ", " + eid.getEntity() + "] ");
System.out.print(" Location in DIS coordinates: [" + position.getX() + ", " + position.getY() + ", " + position.getZ() + "]");
} else if(!(pdu instanceof EntityStatePdu)){
System.out.println("There are no PDUs currently being received.");
}
System.out.println();
}
} /*end while */
} /*end try */
catch(Exception e){
System.out.println(e);
e.printStackTrace();
System.out.println("This is where the error is being generated");
/*09/04/2014 # 17:100
* If this exception gets called, presumably it either means that pdu is not an instance of EntityStatePdu, or
* that pdu does not actually hold a packet. */
}
}
Then, in my Gui.java class, I have a public void initGui(){...} method, which I am trying to use to call the receivePdu() method from EspduReceiver.java. I have done this by declaring a new instance of my EspduReceiver class, and creating a new String variable to hold the data generated by the receivePdu() method:
EspduReceiver receiver = new EspduReceiver();
String data = receiver.receivePdu();
However, I get an error on the String data = receiver.receivePdu(); line that says: "Type mismatch: cannot convert from void to String", and suggests that I change return type of receivePdu() to String...
I understand the reason that I get the error- because my receivePdu() method has a return type of "void", and here I am trying to state that it is String- I had originally tried to write the receivePdu method with a return type of String, but kept getting errors with that, and couldn't fix it other than by changing it to void.
Is there a way that I can access the data retrieved by the receivePdu() method, so that I can display it to the user? How would I do this? Could I possibly save the data that it retrieves to another variable, and use that to display it to the user?
You can't usefully call the receivePdu() method from your GUI, because receivePdu() never returns - it loops forever - and doesn't return anything.
Creating a new instance of EspduReceiver won't help, since the receivePdu method is static i.e. shared by all instances.
You could get receivePdu() to store data in a variable at the top level of EspduReceiver, visible to the GUI, then notify the GUI that it should collect the data and display it. Or you could push the data to the GUI from within receivePdu, though that tangles all your code up somewhat.
Either way, you will need to notify the GUI from the "Event Dispatching Thread" - see the tutorial here.
Busy trying to Call RPG function from Java and got this example from JamesA. But now I am having trouble, here is my code:
AS400 system = new AS400("MachineName");
ProgramCall program = new ProgramCall(system);
try
{
// Initialise the name of the program to run.
String programName = "/QSYS.LIB/LIBNAME.LIB/FUNNAME.PGM";
// Set up the 3 parameters.
ProgramParameter[] parameterList = new ProgramParameter[2];
// First parameter is to input a name.
AS400Text OperationsItemId = new AS400Text(20);
parameterList[0] = new ProgramParameter(OperationsItemId.toBytes("TestID"));
AS400Text CaseMarkingValue = new AS400Text(20);
parameterList[1] = new ProgramParameter(CaseMarkingValue.toBytes("TestData"));
// Set the program name and parameter list.
program.setProgram(programName, parameterList);
// Run the program.
if (program.run() != true)
{
// Report failure.
System.out.println("Program failed!");
// Show the messages.
AS400Message[] messagelist = program.getMessageList();
for (int i = 0; i < messagelist.length; ++i)
{
// Show each message.
System.out.println(messagelist[i]);
}
}
// Else no error, get output data.
else
{
AS400Text text = new AS400Text(50);
System.out.println(text.toObject(parameterList[1].getOutputData()));
System.out.println(text.toObject(parameterList[2].getOutputData()));
}
}
catch (Exception e)
{
//System.out.println("Program " + program.getProgram() + " issued an exception!");
e.printStackTrace();
}
// Done with the system.
system.disconnectAllServices();
The application Hangs at this lineif (program.run() != true), and I wait for about 10 minutes and then I terminate the application.
Any idea what I am doing wrong?
Edit
Here is the message on the job log:
Client request - run program QSYS/QWCRTVCA.
Client request - run program LIBNAME/FUNNAME.
File P6CASEL2 in library *LIBL not found or inline data file missing.
Error message CPF4101 appeared during OPEN.
Cannot resolve to object YOBPSSR. Type and Subtype X'0201' Authority
FUNNAME insert a row into table P6CASEPF through a view called P6CASEL2. P6CASEL2 is in a different library lets say LIBNAME2. Is there away to maybe set the JobDescription?
Are you sure FUNNAME.PGM is terminating and not hung with a MSGW? Check QSYSOPR for any messages.
Class ProgramCall:
NOTE: When the program runs within the host server job, the library list will be the initial library list specified in the job description in the user profile.
So I saw that my problem is that my library list is not setup, and for some reason, the user we are using, does not have a Job Description. So to over come this I added the following code before calling the program.run()
CommandCall command = new CommandCall(system);
command.run("ADDLIBLE LIB(LIBNAME)");
command.run("ADDLIBLE LIB(LIBNAME2)");
This simply add this LIBNAME, and LIBNAME2 to the user's library list.
Oh yes, the problem is Library list not set ... take a look at this discussion on Midrange.com, there are different work-around ...
http://archive.midrange.com/java400-l/200909/msg00032.html
...
Depe