Develop Reference

How to get LAC and Cell id for LTE Network

i am using GsmCellLocation to get LAC and cell id for 3G network with below code :
mCid = gmsCellLocation.getCid() & 0xffff;
mLac = gmsCellLocation.getLac();
and is there any library or formula how to get/calculate the correct LAC and cell id for LTE network (4G) ? Thanks.

TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
List<CellInfo> cellInfoList = telephonyManager.getAllCellInfo();
for (int i = 0; i < cellInfoList.size(); i++) {
if (cellInfoList.get(i) instanceof CellInfoLte) {
CellInfoLte cellInfoLte = (CellInfoLte) cellInfoList.get(i);
mCid = cellInfoLte.getCellIdentity().getCi();
mLac = cellInfoLte.getCellIdentity().getTac();
}
}
Note the method name, it is getCi for LTE. Also, getTac for LTE instead of getLac. See this answer for more.

I hope this might help you :
public class MobileInfoRecognizer {
public String getCellInfo(CellInfo cellInfo) {
String additional_info;
if (cellInfo instanceof CellInfoGsm) {
CellInfoGsm cellInfoGsm = (CellInfoGsm) cellInfo;
CellIdentityGsm cellIdentityGsm = cellInfoGsm.getCellIdentity();
additional_info = "cell identity " + cellIdentityGsm.getCid() + "\n"
+ "Mobile country code " + cellIdentityGsm.getMcc() + "\n"
+ "Mobile network code " + cellIdentityGsm.getMnc() + "\n"
+ "local area " + cellIdentityGsm.getLac() + "\n";
} else if (cellInfo instanceof CellInfoLte) {
CellInfoLte cellInfoLte = (CellInfoLte) cellInfo;
CellIdentityLte cellIdentityLte = cellInfoLte.getCellIdentity();
additional_info = "cell identity " + cellIdentityLte.getCid() + "\n"
+ "Mobile country code " + cellIdentityLte.getMcc() + "\n"
+ "Mobile network code " + cellIdentityLte.getMnc() + "\n"
+ "physical cell " + cellIdentityLte.getPci() + "\n"
+ "Tracking area code " + cellIdentityLte.getTac() + "\n";
} else if (cellInfo instanceof CellInfoWcdma){
CellInfoWcdma cellInfoWcdma = (CellInfoWcdma) cellInfo;
CellIdentityWcdma cellIdentityWcdma = cellInfoWcdma.getCellIdentity();
additional_info = "cell identity " + cellIdentityWcdma.getCid() + "\n"
+ "Mobile country code " + cellIdentityWcdma.getMcc() + "\n"
+ "Mobile network code " + cellIdentityWcdma.getMnc() + "\n"
+ "local area " + cellIdentityWcdma.getLac() + "\n";
}
return additional_info;
}
}

Multiple MQTT connections using PAHO failing

Am trying to maintain two MQTT connections using PAHO library.If i maintain the same object Subscription hangs on second subscription, but if i create a new client it works but closes the first subscription. Below is my code snippet. What could i be missing?.
try {
logging.info(logPreString + "| "
+ Thread.currentThread().getId() + " | "
+ "Subscribing to topic: ");
// Construct the connection options object that contains connection parameters
connectOptions = new MqttConnectOptions();
connectOptions.setCleanSession(true);
connectOptions.setKeepAliveInterval(1000);
// Construct an MQTT blocking mode client
client = new MqttClient(broker, clientID, persistence);
// Set this wrapper as the callback handler
client.setCallback(this);
// Connect to the MQTT server
logging.info(logPreString + "Connecting to broker ..." + broker);
client.connect(connectOptions);
logging.info(logPreString + "Connected and sucscribed ");
// Subscribe to a topic
System.out.println("Subscribe to topic(s): " + "| "
+ Thread.currentThread() + " | "
+ Arrays.toString(topic) + " With QOS of:" + props.getQoS());
client.subscribe(topic, QOS);
} catch (MqttException me) {
logging.error(logPreString + "MqttException caught "
+ "while connecting to broker. Error: "
+ me.getMessage());
}
}
public void subscribeAll(String[] topic, int[] QOS) {
try {
logging.info(logPreString + "subscribing to all ..." + broker);
// Subscribe to a topic
System.out.println("Subscribing to topic(s): " + "| "
+ Thread.currentThread() + " | "
+ Arrays.toString(topic)
+ " With QOS of:" + props.getQoS());
client.subscribe(topic, QOS);
} catch (MqttException me) {
logging.error(logPreString + "MqttException caught "
+ "while connecting to broker. Error: "
+ me.getMessage());
}
}

Driver.java:55: error: 'else' without 'if'

So basically I'm just trying to get this bit of code to work. It used to run when I had the "else" below the two "if" statements. However, when I move it above it gives me the following error:
Driver.java:55: error: 'else' without 'if'
I'd really appreciate some help solving this issue so it'll run again.
{
synchronized(someObject)
{
someObject.wait();
System.out.println(ID + " has been notified.");
Customer customer = null;
if(Dispatcher.customerRequiresPickUp() && (customer = Dispatcher.queue.poll()) != null && (rideCount >= workFinished))
System.out.println("Customer has been picked up by driver #" + ID);
try
{
Thread.sleep(rn.nextInt(5000) + 1000);
System.out.println("Driver #" + ID + " has dropped off " + customer.getName() + " at " + customer.getEndLocation() + ".");
}
catch(InterruptedException e)
{
}
else
System.out.println("Driver #" + ID + " will continue to wait for a customer.");
if(rideCount >= workFinished)
onDuty(false);
}
}

if(Dispatcher.customerRequiresPickUp() && (customer = Dispatcher.queue.poll()) != null && (rideCount >= workFinished))
{
System.out.println("Customer has been picked up by driver #" + ID);
try
{
Thread.sleep(rn.nextInt(5000) + 1000);
System.out.println("Driver #" + ID + " has dropped off " + customer.getName() + " at " + customer.getEndLocation() + ".");
}
catch(InterruptedException e)
{
}
}
else
{
System.out.println("Driver #" + ID + " will continue to wait for a customer.");
}
You need curly brackets {} if an the body of an if statement is more than one line. Like so ^.

java database function removed - still executing

I have a java web application that I removed a function from the code and yet the database entries that this function writes are still being written to the database.
Inside the IssueWarrant function there is a call to insertWarrantFee that has been commented out.
private void issueWarrant(String CasePrefix, String CaseNumber, String HearingType, String Suspend)
{
int i = 0, intDivision = 0, pos = 0;
String SummSeq = getSummSeq(CasePrefix, CaseNumber);
String Charges = getCharges(CasePrefix, CaseNumber, HearingType);
boolean isVacated = false, isHearingFound = false;
NextBWNumber warrNbr = new NextBWNumber();
String WarrantNumber = warrNbr.getNextBWNumber();
String warrStatus = warrNbr.getNextBWNStatus();
String HearingDesc = "", Division = "";
isVacated = getVacatedStatus(CasePrefix, CaseNumber, HearingType);
isHearingFound = getHearingStatus (CasePrefix, CaseNumber, HearingType);
HearingDesc = getFormatToday() + " " + getHearingDesc(HearingType);
if (HearingDesc.length() > 30)
{
HearingDesc = HearingDesc.substring(0,30);
}
Division = getHearingJudge(CasePrefix,CaseNumber,HearingType);
intDivision = Integer.parseInt(Division);
if (intDivision < 10)
{ Division = "0" + Division; }
Statement localstmt = null;
String localqueryString;
localqueryString = "INSERT INTO " + library7 + "CMPBWPND" +
" (CASPRE, CASNUM, DEFSEQ, CHGSEQ, SUMSEQ, STSCOD, STSDAT," +
" STATUT, CHGABV, BWNBR, JUDCOD, PRVFLG, CT2FLG, DIVISN, BNDAMT," +
" BTYPE, CMNT, CUSER, TUSER, LUPDAT, SCRDAT, STATSDAT, SUMCRDAT, LUPDATE )" +
" VALUES ('" + CasePrefix + "', " + CaseNumber + ", 1, " + Charges.substring(i, i + 1) +
", " + SummSeq + ", 9, " + getShortDate() + ", 'RCP 12-A TA', 'WARRANT', '" +
WarrantNumber + "', " + intDivision + ", 'N', 1, '" + Division + "', " +
BondAmt + ", '" + BondType + "', '" + HearingDesc + "', 'TAAD', 'TAAD', " +
getShortDate() + ", " + getShortDate() + ", " + getLongDate() + ", " + getLongDate() +
", " + getLongDate() + ")";
try
{
if (!isVacated && isHearingFound)
{
localstmt = conn.createStatement();
localstmt.executeUpdate(localqueryString);
localstmt.close();
StatusMsg = "Client No Show-WI";
}
if (isVacated)
{
StatusMsg = "Client Vacated Case";
}
if (!isHearingFound)
{
StatusMsg = "Client Hearing Missing";
}
} catch (SQLException e)
{
System.out.println("IssueWarr - Error in IssueWarrant");
e.printStackTrace();
ReturnInfo = "Issuing Warrants Failed.";
success = false;
}finally
{
try
{
if (!localstmt.isClosed())
{
localstmt.close();
}
} catch (SQLException sql2)
{
System.out.println("Error trying to close connections. Exception: " + sql2.getMessage());
}
}
**//insertWarrantFee(CasePrefix, CaseNumber, SummSeq, WarrantNumber);**
updateHearingRecord(CasePrefix, CaseNumber, HearingType, Charges.substring(i, i + 1), Suspend);
for ( i = 1; i < Charges.length(); i++ )
{
insertBWPTFRecord(CasePrefix, CaseNumber, SummSeq, Charges.substring(i, i + 1));
}
if (!success)
{
StatusMsg = "Client Iss. Warrant Failure";
}
}
Here is the code that the insertWarrantFee called before it was commented out:
private void insertWarrantFee(String CasePrefix, String CaseNumber, String SummSeq, String WarrantNumber)
{
Statement localstmt = null;
String localqueryString;
ResultSet localrSet = null;
String feeAmt = null;
localqueryString = "SELECT AUTO$$ FROM " + library3 + "CMPDKTTP WHERE DKTTYP = 'W'";
try
{
localstmt = conn.createStatement();
localrSet = localstmt.executeQuery(localqueryString);
while (localrSet.next())
{
feeAmt = localrSet.getString("AUTO$$");
}
localstmt.close();
localrSet.close();
} catch (SQLException e)
{
System.out.println("IssueWarr - Error in Insert Warrant Fee SQL1");
e.printStackTrace();
ReturnInfo = "Issuing Warrants Failed.";
success = false;
}finally
{
try
{
if (!localstmt.isClosed())
{
localstmt.close();
}
} catch (SQLException sql2)
{
System.out.println("Error trying to close connections. Exception: " + sql2.getMessage());
}
}
localqueryString = "INSERT INTO " + library7 + "CMPBWTRN"
+ " (CASPRE, CASNUM, DEFSEQ, SUMSEQ, BWNBR, FEEAMT, DKTTYP, TUSER, LUPDAT)"
+ " VALUES ('" + CasePrefix + "', " + CaseNumber + ", 1, " + SummSeq + ", '" + WarrantNumber
+ "', " + feeAmt + ", 'W', 'TAAD', " + getShortDate() + ")";
try
{
localstmt = conn.createStatement();
localstmt.executeUpdate(localqueryString);
localstmt.close();
} catch (SQLException e)
{
System.out.println("IssueWarr - Insert Warrant Fee SQL2");
e.printStackTrace();
ReturnInfo = "Issuing Warrants Failed.";
success = false;
}finally
{
try
{
if (!localstmt.isClosed())
{
localstmt.close();
}
} catch (SQLException sql2)
{
System.out.println("Error trying to close connections. Exception: " + sql2.getMessage());
}
}
}
So even though the line that called insertWarrantFee is commented out a record is still being inserted into CMPBWTRN.
Any ideas how this could happen? The developer is indicating it could be a tomcat connection cache issue? Any other suggestion beside magical code?
Thanks!
Leslie

A couple of things to try:
Make sure you've redeployed the application and have restarted Tomcat. Check the timestamp of the deployed class in question.
Clean Tomcat's tmp and work directories
Open the deployed Java class using a decompiler to see whether the removed code is still in there.
Add a logging (or System.out.println) statement to the method that's commented out, and to the method calling it. See whether one or both are printed after redeploying the changes.

android twitter 4j integration get tweet entities

I am working on twitter integration with android using Twiitter4j. I am trying to fetch Home timelines and its working fine. But when i am looking to get urls included in the tweets there is no functions. Is there a functon to get tweet entites like urls etc.
Here is the code
cb = new ConfigurationBuilder();
cb.setDebugEnabled(true).setOAuthConsumerKey(Constants.CONSUMER_KEY)
.setOAuthConsumerSecret(Constants.CONSUMER_SECRET)
.setOAuthAccessToken(accessToken).setOAuthAccessTokenSecret(
accessSecret);
try {
TwitterFactory factory = new TwitterFactory(cb.build());
// gets Twitter instance with default credentials
Twitter twitter = factory.getInstance();
User user = twitter.verifyCredentials();
List<Status> statuses = twitter.getHomeTimeline();
System.out.println("Showing #" + user.getScreenName() + "'s home timeline.");
for (Status status : statuses) {
System.out.println("#" + status.getUser().getScreenName() + " - " + status.getText() + "--"+status.getURLs()+ "--"+status.getURLEntities());
}
} catch (TwitterException te) {
te.printStackTrace();
System.out.println("Failed to get timeline: " + te.getMessage());
System.exit(-1);
}
Works well with Sony's code and after that i have moved my code to async task and it shows some errors
Here is my edited code
protected String doInBackground(Void... args) {
String response = null;
try {
TwitterFactory factory = new TwitterFactory(cb.build());
// gets Twitter instance with default credentials
Twitter twitter = factory.getInstance();
User user = twitter.verifyCredentials();
ResponseList<Status> statuses = twitter.getHomeTimeline();
System.out.println("Showing #" + user.getScreenName() + "'s home timeline.");
for (Status status : statuses) {
System.out.println("#" + status.getUser().getScreenName() + " - " + status.getText() + "--"+status.getUser().getProfileImageURL());
URLEntity[] uent = status.getURLEntities();
if (uent != null) {
for (int k = 0; k < uent.length; k++) {
Log.i("URL Entity", "Dp Url " + uent[k].getDisplayURL()
+ " URL " + uent[k].getURL() + " start "
+ uent[k].getStart() + " end "
+ uent[k].getEnd());
}
}
}
} catch (TwitterException te) {
te.printStackTrace();
System.out.println("Failed to get timeline: " + te.getMessage());
System.exit(-1);
}
return response;
}

You just need to add one more line while creating object of ConfigurationBuilder
cb.setIncludeEntitiesEnabled(true);
(Hint for the next code)And you will get the Entities then,
ResponseList<Status> list = twitter.getHomeTimeline();
URLEntity[] uent = list.get(0).getURLEntities();
if (uent != null) {
for (int k = 0; k < uent.length; k++) {
Log.i("URL Entity", "Dp Url " + uent[k].getDisplayURL()
+ " URL " + uent[k].getURL() + " start "
+ uent[k].getStart() + " end "
+ uent[k].getEnd());
}
}