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Zebra RFID API Read Access Operation Code return null

I'm trying to develop a small Application for a Zebra handheld rfid reader and can't find a way to access the MemoryBank of the tag. My reader configuration is as follows:
private void ConfigureReader() {
if (reader.isConnected()) {
TriggerInfo triggerInfo = new TriggerInfo();
triggerInfo.StartTrigger.setTriggerType(START_TRIGGER_TYPE.START_TRIGGER_TYPE_IMMEDIATE);
triggerInfo.StopTrigger.setTriggerType(STOP_TRIGGER_TYPE.STOP_TRIGGER_TYPE_IMMEDIATE);
try {
// receive events from reader
if (eventHandler == null){
eventHandler = new EventHandler();
}
reader.Events.addEventsListener(eventHandler);
// HH event
reader.Events.setHandheldEvent(true);
// tag event with tag data
reader.Events.setTagReadEvent(true);
reader.Events.setAttachTagDataWithReadEvent(true);
// set trigger mode as rfid so scanner beam will not come
reader.Config.setTriggerMode(ENUM_TRIGGER_MODE.RFID_MODE, true);
// set start and stop triggers
reader.Config.setStartTrigger(triggerInfo.StartTrigger);
reader.Config.setStopTrigger(triggerInfo.StopTrigger);
} catch (InvalidUsageException e) {
e.printStackTrace();
} catch (OperationFailureException e) {
e.printStackTrace();
}
}
}
And the eventReadNotify looks like this:
public void eventReadNotify(RfidReadEvents e) {
// Recommended to use new method getReadTagsEx for better performance in case of large tag population
TagData[] myTags = reader.Actions.getReadTags(100);
if (myTags != null) {
for (int index = 0; index < myTags.length; index++) {
Log.d(TAG, "Tag ID " + myTags[index].getTagID());
ACCESS_OPERATION_CODE aoc = myTags[index].getOpCode();
ACCESS_OPERATION_STATUS aos = myTags[index].getOpStatus();
if (aoc == ACCESS_OPERATION_CODE.ACCESS_OPERATION_READ && aos == ACCESS_OPERATION_STATUS.ACCESS_SUCCESS) {
if (myTags[index].getMemoryBankData().length() > 0) {
Log.d(TAG, " Mem Bank Data " + myTags[index].getMemoryBankData());
}
}
}
}
}
When I'm scanning a tag I get the correct TagID but both myTags[index].getOpCode() and myTags[index].getOpStatus() return null values.
I appreciate every suggestion that might lead to a successful scan.
Thanks.

I managed to find a solution for my problem. To perform any Read or Write task with Zebra Handheld Scanners the following two conditions must be satisfied. Look here for reference: How to write to RFID tag using RFIDLibrary by Zebra?
// make sure Inventory is stopped
reader.Actions.Inventory.stop();
// make sure DPO is disabled
reader.Config.setDPOState(DYNAMIC_POWER_OPTIMIZATION.DISABLE);
You have to stop the inventory and make sure to disable dpo in order to get data other than the TagID from a Tag. Unfortunately this isn't mentioned in the docu for Reading RFID Tags.

Restfb - Why when I fetch my admined groups the app throws OAuthException: (#200) Permissions error (code 200, subcode null)

I'm programming in Java and I'm trying to fetch all the Facebook groups which I am the admin.
Thus, I've created an app called "Secrets" in Facebook Graph API Explorer and
checked all the permissions when I generated my ACCESS TOKEN.
For my Java app I'm using the library: restfb-1.18.0
The weird thing is that I'm getting the list of my admined groups but then
the app throws the exception: OAuthException: (#200) Permissions error (code 200, subcode null)
I don't know why i get this error.
Here is my code snippet:
String accessTokenGraphApiExplorer = "...";
FacebookClient fbClient = new DefaultFacebookClient(accessTokenGraphApiExplorer,Version.VERSION_2_0);
int counter = 0;
final String MY_FEEDS_PROPERTY = "me/groups";
String param = "groups,name";
Connection<Group> result = fbClient.fetchConnection(MY_FEEDS_PROPERTY, Group.class, Parameter.with("fields", param));
try {
for (List<Group> groupPage : result) {
for (Group group : groupPage) {
System.out.println(group.getName());
counter++;
}
}
System.out.println("# of Groups I admin: " + counter);
}
catch (Exception e) {
System.out.println(e);
}
How can I fix it ?

How to transcribe bandwidth call recordings in java

My application uses https://app.bandwidth.com/ for receiving incoming calls. I have an api to handle the incoming calls which record the calls when the call is not answered(This recording is treated as a voice mail).
if (eventType.equalsIgnoreCase(EventType.ANSWER.toString())) {
Timestamp callStartTime = new Timestamp(TimeUtil.now().getTime());
incomingCall.setCallTime(callStartTime);
callStatus = transferCall(callId, incomingCall.getVoiceForwardNumber(), 1);
}
else if (eventType.equalsIgnoreCase(EventType.TIMEOUT.toString())) {
voiceMailIntro(callId);
}
else if (eventType.equalsIgnoreCase(EventType.SPEAK.toString()) && PLAYBACK_STOP.equalsIgnoreCase(callState)) {
recordVoiceMail(callId);
}
else if (eventType.equalsIgnoreCase(EventType.RECORDING.toString()) &&
state.equalsIgnoreCase(BandwidthCallStatus.COMPLETE.toString())) {
createTranscription(recordingId);
}
else if (eventType.equalsIgnoreCase(EventType.TRANSCRIPTION.toString()) && status.equalsIgnoreCase(BandwidthCallStatus.COMPLETED.toString())) {
incomingCall.setVoiceMail(text);
}
This is the code for recording call
private void recordVoiceMail(String callId) {
BandwidthClient client = BandwidthClient.getInstance();
client.setCredentials(bandwidthUserId, bandwidthApiToken, bandwidthApiSecret);
try {
Call call = Call.get(client, callId);
call.recordingOn();
} catch (Exception e) {
log.error("An exception occurred while recording voice mail : " +
e.getMessage(), e);
}
}
Now i need to transcribe these vocie mails.
From documentation i got methods in python, js, c#, ruby etc. to transcribe the recordings using the recordings.
For example in js,
client.Recording.createTranscription(recordingId, function(err, transcription){});
I searched every where, but i couldn't find any method in java for that.
Can any one help me if you know ?

Anyway, as I see, you need that link for java doc.
And here you can follow to java sdk located on Github.
And, also, you can find some more information about transcriptions API here which you are looking for.
First of all, why do you need that? Perhaps, you do not need that.
As I find, you can't do transcribe with POJO, but you can do something like that.
If you want to do that, you can make it with
public void transcribeOn() throws Exception {
final List<Recording> list = Recording.list(0, 5);
if (!list.isEmpty()) {
final Recording recording = Recording.get(list.get(0).getId());
System.out.println("\nRecording by Id");
System.out.println(recording);
final String recordingUri = mockClient.getUserResourceUri(BandwidthConstants.RECORDINGS_URI_PATH);
client.post(recordingUri + "/" + list.get(0).getId() + "/transcriptions", null);
final JSONObject jsonObject = call.toJSONObject(client.get(recordingUri, null));
call.updateProperties(jsonObject);
}
}
I'm not sure it works correctly, but I hope it put you on correct way

How to get client list using SOAP Web Services in Netsuite ERP?

I am really new to SOAP web services and to Netsuite ERP and I am trying to generate a report in my company where I need to obtain all the Clients and their Invoices using the data available in Netsuite ERP. I followed the Java and Axis tutorial they offer with their sample app for the ERP and I successfully created a Java project in Eclipse that consumes the WSDL for netsuite 2015-2 and compiles the needed classes to run the sample app. So, I followed an example found in their CRM exapmle app to obtain a Client's information but the only problem is that their example method needs you to introduce the Client's ID. Here is the sample code:
public int getCustomerList() throws RemoteException,
ExceededUsageLimitFault, UnexpectedErrorFault, InvalidSessionFault,
ExceededRecordCountFault, UnsupportedEncodingException {
// This operation requires a valid session
this.login(true);
// Prompt for list of internalIds and put in an array
_console
.write("\ninternalIds for records to retrieved (separated by commas): ");
String reqKeys = _console.readLn();
String[] internalIds = reqKeys.split(",");
return getCustomerList(internalIds, false);
}
private int getCustomerList(String[] internalIds, boolean isExternal)
throws RemoteException, ExceededUsageLimitFault,
UnexpectedErrorFault, InvalidSessionFault, ExceededRecordCountFault {
// Build an array of RecordRef objects and invoke the getList()
// operation to retrieve these records
RecordRef[] recordRefs = new RecordRef[internalIds.length];
for (int i = 0; i < internalIds.length; i++) {
RecordRef recordRef = new RecordRef();
recordRef.setInternalId(internalIds[i]);
recordRefs[i] = recordRef;
recordRefs[i].setType(RecordType.customer);
}
// Invoke getList() operation
ReadResponseList getResponseList = _port.getList(recordRefs);
// Process response from get() operation
if (!isExternal)
_console.info("\nRecords returned from getList() operation: \n");
int numRecords = 0;
ReadResponse[] getResponses = getResponseList.getReadResponse();
for (int i = 0; i < getResponses.length; i++) {
_console.info("\n Record[" + i + "]: ");
if (!getResponses[i].getStatus().isIsSuccess()) {
_console.errorForRecord(getStatusDetails(getResponses[i]
.getStatus()));
} else {
numRecords++;
Customer customer = (Customer) getResponses[i].getRecord();
_console.info(" internalId="
+ customer.getInternalId()
+ "\n entityId="
+ customer.getEntityId()
+ (customer.getCompanyName() == null ? ""
: ("\n companyName=" + customer
.getCompanyName()))
+ (customer.getEntityStatus() == null ? ""
: ("\n status=" + customer.getEntityStatus().getName()))
+ (customer.getEmail() == null ? ""
: ("\n email=" + customer.getEmail()))
+ (customer.getPhone() == null ? ""
: ("\n phone=" + customer.getPhone()))
+ "\n isInactive="
+ customer.getIsInactive()
+ (customer.getDateCreated() != null ? ""
: ("\n dateCreated=" + customer
.getDateCreated().toString())));
}
}
return numRecords;
}
So as you can see, this method needs the internal ID of each Customer which I find not useful as I have a many Customers and I don't want to pass each Customer's ID. I read their API docs (which I find hard to navigate and kind of useless) and I found a web service called getAll() that gives all the records given a getAllRecord object which requires a getAllRecordType object. However, the getAllRecordType object does not support Customer entities, so I can't obtain all the customers on the ERP this way.
Is there an easy way to obtain all the Customers in my Netsuite ERP (maybe using other thing rather than the SOAP Web Services they offer? I am desperate about this situation as understanding how Netsuite's Web Services API has been really troublesome.
Thanks!

You would normally use a search to select a list of customers. On a large account you would not normally get all customers on any regular basis. If you are trying to get the invoices you might just find it more practical to get those with a search.
You wrote "in your company". Are you trying to write an application of some sort? If this is an internal project (and even if it's not) you'll probably find using SuiteScripts much more efficient in terms of your time and frustration level.

I made it using the following code on my getCustomerList method:
CustomerSearch customerSrch = new CustomerSearch();
SearchResult searchResult = _port.search(customerSrch);
System.out.println(searchResult.getTotalRecords());
RecordList rl = searchResult.getRecordList();
for (int i = 0; i <searchResult.getTotalRecords()-1; i++) {
Record r = rl.getRecord(i);
System.out.println("Customer # " + i);
Customer testcust = (Customer)r;
System.out.println("First Name: " + testcust.getFirstName());
}

Apache Commons - NNTP - "Article To List" - AWT

I am currently using Apache Commons Net to develop my own NNTP reader. Using the tutorial available I was able to use some of their code to allow me to get articles back.
The Code I am using from NNTP Section -
System.out.println("Retrieving articles between [" + lowArticleNumber + "] and [" + highArticleNumber + "]");
Iterable<Article> articles = client.iterateArticleInfo(lowArticleNumber, highArticleNumber);
System.out.println("Building message thread tree...");
Threader threader = new Threader();
Article root = (Article)threader.thread(articles);
Article.printThread(root, 0);
I need to take the articles and turn them into a List type so I can send them to AWT using something like this -
List x = (List) b.GetGroupList(dog);
f.add(CreateList(x));
My Entire code Base for this section is -
public void GetThreadList(String Search) throws SocketException, IOException {
String hostname = USE_NET_HOST;
String newsgroup = Search;
NNTPClient client = new NNTPClient();
client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));
client.connect(hostname);
client.authenticate(USER_NAME, PASS_WORD);
if(!client.authenticate(USER_NAME, PASS_WORD)) {
System.out.println("Authentication failed for user " + USER_NAME + "!");
System.exit(1);
}
String fmt[] = client.listOverviewFmt();
if (fmt != null) {
System.out.println("LIST OVERVIEW.FMT:");
for(String s : fmt) {
System.out.println(s);
}
} else {
System.out.println("Failed to get OVERVIEW.FMT");
}
NewsgroupInfo group = new NewsgroupInfo();
client.selectNewsgroup(newsgroup, group);
long lowArticleNumber = group.getFirstArticleLong();
long highArticleNumber = lowArticleNumber + 5000;
System.out.println("Retrieving articles between [" + lowArticleNumber + "] and [" + highArticleNumber + "]");
Iterable<Article> articles = client.iterateArticleInfo(lowArticleNumber, highArticleNumber);
System.out.println("Building message thread tree...");
Threader threader = new Threader();
Article root = (Article)threader.thread(articles);
Article.printThread(root, 0);
try {
if (client.isConnected()) {
client.disconnect();
}
}
catch (IOException e) {
System.err.println("Error disconnecting from server.");
e.printStackTrace();
}
}
and -
public void CreateFrame() throws SocketException, IOException {
// Make a new program view
Frame f = new Frame("NNTP Reader");
// Pick my layout
f.setLayout(new GridLayout());
// Set the size
f.setSize(H_SIZE, V_SIZE);
// Make it resizable
f.setResizable(true);
//Create the menubar
f.setMenuBar(CreateMenu());
// Create the lists
UseNetController b = new UseNetController(NEWS_SERVER_CREDS);
String dog = "*";
List x = (List) b.GetGroupList(dog);
f.add(CreateList(x));
//f.add(CreateList(y));
// Add Listeners
f = CreateListeners(f);
// Show the program
f.setVisible(true);
}
I just want to take my list of returned news articles and send them to the display in AWT. Can any one explain to me how to turn those Articles into a list?

Welcome to the DIY newsreader club. I'm not sure if you are trying to get a list of newsgroups on the server, or articles.You have already have your Articles in an Iterable Collection. Iterate through it appending what you want in the list from each article. You probably aren't going to want to display the whole article body in a list view. More likely the message id, subject, author or date (or combination as a string). For example for a List of just subjects:
...
Iterable<Article> articles = client.iterateArticleInfo(lowArticleNumber, highArticleNumber);
Iterator<Article> it = articles.iterator();
while(it.hasNext()) {
Article thisone = it.next();
MyList.add(thisone.getSubject());
//MyList should have been declared up there somewhere ^^^ and
//your GetThreadList method must include List in the declaration
}
return MyList;
...
My strategy has been to retrieve the articles via an iterator in to an SQLite database with the body, subject, references etc. stored in fields. Then you can create a list sorted just how you want, with a link by primary key to retrieve what you need for individual articles as you display them. Another strategy would be an array of message_ids or article numbers and fetch each one individually from the news server as required. Have fun - particularly when you are coding for Android and want to display a list of threaded messages in the correct sequence with suitable indents and markers ;). In fact, you can learn a lot by looking at the open source Groundhog newsreader project (to which I am eternally grateful).
http://bazaar.launchpad.net/~juanjux/groundhog/trunk/files/head:/GroundhogReader/src/com/almarsoft/GroundhogReader