I want automatically answer all sip calls.
When I respond with trying or ringing, the transaction is in a proceeding state,
but when I send the OK response, the transaction is in a terminated state.
This is my code:
public void processRequest(RequestEvent requestReceivedEvent)
{
Address contactAddress = myAddressFactory.createAddress("sip:" + myIP + ":" + myPort);
myContactHeader = myHeaderFactory.createContactHeader(contactAddress);
Request req = requestReceivedEvent.getRequest();
myGUI.display("<<< " + req.toString());
String method = req.getMethod(); //bad request type.
FromHeader from = (FromHeader) req.getHeader("From");
Response response = null;
try
{ //Reply with OK
response = myMessageFactory.createResponse(200, req);
ToHeader toHeader = (ToHeader) response.getHeader(ToHeader.NAME);
toHeader.setTag("888"); //Identifier, specific to your application
ServerTransaction st = mySipProvider.getNewServerTransaction(req);
response.addHeader(myContactHeader);
st.sendResponse(response);
System.out.println("Ok response: " + st.getState());
}
catch (Exception e)
{
e.printStackTrace();
}
}
Thanks in advance.
INVITE server transactions to go terminated state after 200 OK. It's normal. Your call is answered and you shouldn't worry about it.
(see diagram of state machine from RFC)
|INVITE
|pass INV to TU
INVITE V send 100 if TU won't in 200ms
send response+-----------+
+--------| |--------+101-199 from TU
| | Proceeding| |send response
+------->| |<-------+
| | Transport Err.
| | Inform TU
| |--------------->+
+-----------+ |
300-699 from TU | |2xx from TU |
send response | |send response |
| +------------------>+
| |
INVITE V Timer G fires |
send response+-----------+ send response |
+--------| |--------+ |
| | Completed | | |
+------->| |<-------+ |
+-----------+ |
| | |
ACK | | |
- | +------------------>+
| Timer H fires |
V or Transport Err.|
+-----------+ Inform TU |
| | |
| Confirmed | |
| | |
+-----------+ |
| |
|Timer I fires |
|- |
| |
V |
+-----------+ |
| | |
| Terminated|<---------------+
| |
+-----------+
Figure 7: INVITE server transaction
Related
Single-job schedule with two vehicles. One vehicle starts close to the job, the other starts far from the job. Seems it should prefer to use the closer vehicle, as there's a cost-per-distance. But it uses the farther one, if there's a non-zero setCostPerWaitingTime(). Why?
public void testUseCloserVehicleWhenCostsAreSet() throws Exception {
VehicleType type = VehicleTypeImpl.Builder.newInstance("generic")
.setCostPerDistance(0.017753)
//.setCostPerTransportTime(1.0)
.setCostPerWaitingTime(1.0)
.build();
double serviceTime = 420.0;
Location pointA = Location.newInstance(100.0, 100.0);
Location pointB = Location.newInstance(100.0, 200.0);
Location closeToPointA = Location.newInstance(110.0, 110.0);
Location farFromPointA = Location.newInstance(500.0, 110.0);
VehicleRoutingProblem vrp = VehicleRoutingProblem.Builder
.newInstance()
.setFleetSize(VehicleRoutingProblem.FleetSize.FINITE)
.addVehicle(VehicleImpl.Builder.newInstance("CloseBy")
.setType(type)
.setStartLocation(closeToPointA)
.build())
.addVehicle(VehicleImpl.Builder.newInstance("FarAway")
.setType(type)
.setStartLocation(farFromPointA)
.build())
.addJob(Shipment.Builder.newInstance("123")
.setPickupLocation(pointA)
.setPickupServiceTime(serviceTime)
.setDeliveryLocation(pointB)
.setDeliveryServiceTime(serviceTime)
.setPickupTimeWindow(new TimeWindow(36000.0, 36360.0))
.setDeliveryTimeWindow(new TimeWindow(36360.0, 36720.0))
.setMaxTimeInVehicle(720.0)
.build())
.build();
VehicleRoutingAlgorithm algorithm = Jsprit.Builder.newInstance(vrp)
.buildAlgorithm();
VehicleRoutingProblemSolution bestSolution = Solutions.bestOf(algorithm.searchSolutions());
SolutionPrinterWithTimes.print(vrp, bestSolution, SolutionPrinterWithTimes.Print.VERBOSE);
System.out.flush();
assertEquals("CloseBy", bestSolution.getRoutes().iterator().next().getVehicle().getId());
}
Result:
+----------------------------------------------------------+
| solution |
+---------------+------------------------------------------+
| indicator | value |
+---------------+------------------------------------------+
| costs | 35616.03246830352 |
| noVehicles | 1 |
| unassgndJobs | 0 |
+----------------------------------------------------------+
+--------------------------------------------------------------------------------------------------------------------------------+
| detailed solution |
+---------+----------------------+-----------------------+-----------------+-----------------+-----------------+-----------------+
| route | vehicle | activity | job | arrTime | endTime | costs |
+---------+----------------------+-----------------------+-----------------+-----------------+-----------------+-----------------+
| 1 | FarAway | start | - | undef | 0 | 0 |
| 1 | FarAway | pickupShipment | 123 | 400 | 36420 | 35607 |
| 1 | FarAway | deliverShipment | 123 | 36520 | 36940 | 35609 |
| 1 | FarAway | end | - | 37350 | undef | 35616 |
+--------------------------------------------------------------------------------------------------------------------------------+
junit.framework.ComparisonFailure:
Expected :CloseBy
Actual :FarAway
I suspect it has something to do with the vehicle arriving at 400 for a job that can't start until 36000. Is there a way to prevent that, so the vehicle starts only as early as needed to reach the first job? Does setCostPerWaitingTime do something other than what I think?
Here's a comparison of the job with only the CloseBy vehicle.
+--------------------------------------------------------------------------------------------------------------------------------+
| detailed solution |
+---------+----------------------+-----------------------+-----------------+-----------------+-----------------+-----------------+
| route | vehicle | activity | job | arrTime | endTime | costs |
+---------+----------------------+-----------------------+-----------------+-----------------+-----------------+-----------------+
| 1 | FarAway | start | - | undef | 0 | 0 |
| 1 | FarAway | pickupShipment | 123 | 400 | 36420 | 35607 |
| 1 | FarAway | deliverShipment | 123 | 36520 | 36940 | 35609 |
| 1 | FarAway | end | - | 37350 | undef | 35616 |
+--------------------------------------------------------------------------------------------------------------------------------+
+--------------------------------------------------------------------------------------------------------------------------------+
| detailed solution |
+---------+----------------------+-----------------------+-----------------+-----------------+-----------------+-----------------+
| route | vehicle | activity | job | arrTime | endTime | costs |
+---------+----------------------+-----------------------+-----------------+-----------------+-----------------+-----------------+
| 1 | CloseBy | start | - | undef | 0 | 0 |
| 1 | CloseBy | pickupShipment | 123 | 14 | 36420 | 35986 |
| 1 | CloseBy | deliverShipment | 123 | 36520 | 36940 | 35988 |
| 1 | CloseBy | end | - | 37031 | undef | 35989 |
+--------------------------------------------------------------------------------------------------------------------------------+
I think the problem is that the CloseBy vehicle arrives sooner, so it pays higher wait costs, while the other vehicle is driving during that time so pays less in wait costs. This would be mitigated if the vehicle didn't start until it needed to, but I'm unsure how to set that up.
I'm reading line by line from a file then inserting the details in a mysql database. But the issue is that some lines do not contain a field I called natted ip and port. I loop through the file then insert into db. However the issue is that because not every row contains natted ip and port, I need the database to skip these two columns when inserting into the table where they do not appear but insert the rest and not duplicate. How can I ensure that?
public static void readData() throws ClassNotFoundException, SQLException{
File fileName = new File(FILE);
try(Scanner input = new Scanner(fileName) ){
String firstLine, secondLine, thirdLine;
firstLine = input.nextLine();
secondLine = input.nextLine();
String[] secondString = secondLine.split(" ");
for(String string: secondString){
timestamp = secondString[0]+" "+secondString[1]; //to be inserted
timezone = secondString[2]; //to be inserted
}
thirdLine = input.nextLine();
String[] thirdString = thirdLine.split(":");
for(String string: thirdString){
session = thirdString[1].trim(); //to be inserted
}
while(input.hasNextLine()){
String line;
line = input.nextLine();
String[] cdr_string = line.split(" ");
for(String string:cdr_string){
type = cdr_string[1].trim(); //to be inserted
internalIP_and_port = cdr_string[8];
destinationIP_and_port = cdr_string[10].trim();
}
if(internalIP_and_port.contains("[")){
String[] splitIPs = internalIP_and_port.split(Pattern.quote("["));
for(String string:splitIPs){
internalIP_and_port = splitIPs[0].trim();
nattedIP_and_port = splitIPs[1].trim();
nattedIP_and_port = nattedIP_and_port.substring(0, nattedIP_and_port.length() -1);
}
String[] splitIP_and_port = nattedIP_and_port.split(":");
for(String string:splitIP_and_port){
natted_ip = splitIP_and_port[0].trim(); //to be inserted
natted_port = splitIP_and_port[1].trim(); //to be inserted
}
// System.out.println(natted_ip);
}
String[] split_internal_IP_and_port = internalIP_and_port.split(":");
for(String string : split_internal_IP_and_port){
internal_ip = split_internal_IP_and_port[0].trim(); //to be inserted
internal_port = split_internal_IP_and_port[1].trim(); //to be inserted
}
String[] split_destination_IP_and_port = destinationIP_and_port.split(":");
for(String string : split_destination_IP_and_port){
destination_ip = split_destination_IP_and_port[0].trim(); //to be inserted
destination_port = split_destination_IP_and_port[1].trim(); //to be inserted
}
saveData();
}
}catch(IOException ex){
System.out.println(ex);
}
File log_done = new File(FILE_DONE);
fileName.renameTo(log_done);
fileName.delete();
}
private static void saveData() throws ClassNotFoundException, SQLException{
Connection con = connect();
PreparedStatement stmt = con.prepareStatement("INSERT INTO decoder(type, internal_ip, internal_port, natted_ip, natted_port, destination_ip, destination_port, session, timestamp, timezone, filename) values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
stmt.setString(1, type);
stmt.setString(2, internal_ip);
stmt.setString(3, internal_port);
stmt.setString(4, natted_ip);
stmt.setString(5, natted_port);
stmt.setString(6, destination_ip);
stmt.setString(7, destination_port);
stmt.setString(8, session);
stmt.setString(9, timestamp);
stmt.setString(10, timezone);
stmt.setString(11, FILENAME);
stmt.executeUpdate();
}
public static Connection connect() throws ClassNotFoundException, SQLException{
Class.forName("com.mysql.jdbc.Driver");
return DriverManager.getConnection(URL, USERNAME, PASSWORD);
}```
I'm reading from this file:
udp VPN: public --> public 41.72.118.178:56620 --> 103.10.116.19:51130
https VPN: public --> public 10.65.19.224:46765[165.56.53.149:15674] --> 31.13.75.36:443
tcp VPN: public --> public 35.212.240.3:34533 --> 41.72.96.58:20792
dns VPN: public --> public 10.65.179.189:12718 --> 165.56.45.2:53
https VPN: public --> public 10.65.145.37:34490[165.56.53.161:38013] --> 185.60.219.9:443
https VPN: public --> public 10.65.14.63:43956[165.56.53.178:27552] --> 216.58.223.106:443
https VPN: public --> public 10.66.32.44:37573[165.56.53.141:29821] --> 185.60.219.33:443
udp VPN: public --> public 172.21.242.243:10188[41.72.123.88:55777] --> 119.3.74.66:10327
http VPN: public --> public 172.21.218.82:65167[41.72.121.132:46765] --> 5.45.58.214:80
https VPN: public --> public 10.66.118.81:52792[165.56.53.185:46319] --> 104.82.200.59:443
udp VPN: public --> public 76.64.76.78:13114 --> 41.72.108.238:34835
I want it to show like this:
+----+----------+----------------+---------------+---------------+------------
| id | type | internal_ip | internal_port | natted_ip | natted_port
+----+----------+----------------+---------------+---------------+------------
| 1 | udp | 41.72.118.178 | 56620 | NULL | NULL |
| 2 | https | 10.65.19.224 | 46765 | 165.56.53.149 | 15674 |
| 3 | tcp | 35.212.240.3 | 34533 | NULL | NULL |
| 4 | dns | 10.65.179.189 | 12718 | NULL | NULL |
| 5 | https | 10.65.145.37 | 34490 | 165.56.53.161 | 38013 |
| 6 | https | 10.65.14.63 | 43956 | 165.56.53.178 | 27552 |
| 7 | https | 10.66.32.44 | 37573 | 165.56.53.141 | 29821 |
| 8 | udp | 172.21.242.243 | 10188 | 41.72.123.88 | 55777 |
| 9 | http | 172.21.218.82 | 65167 | 41.72.121.132 | 46765 |
| 10 | https | 10.66.118.81 | 52792 | 165.56.53.185 | NULL |
| 11 | udp | 76.64.76.78 | 13114 | NULL | NULL |
| 12 | https | 10.66.81.19 | 34736 | 165.56.53.81 | 29021 |
| 13 | tcp | 10.66.18.62 | 55976 | 165.56.53.233 | 62585
And not like this:
+----+----------+----------------+---------------+---------------+------------
| id | type | internal_ip | internal_port | natted_ip | natted_port
+----+----------+----------------+---------------+---------------+------------
| 1 | udp | 41.72.118.178 | 56620 | NULL | NULL |
| 2 | https | 10.65.19.224 | 46765 | 165.56.53.149 | 15674 |
| 3 | tcp | 35.212.240.3 | 34533 | 165.56.53.149 | 15674 |
| 4 | dns | 10.65.179.189 | 12718 | 165.56.53.149 | 15674 |
| 5 | https | 10.65.145.37 | 34490 | 165.56.53.161 | 38013 |
| 6 | https | 10.65.14.63 | 43956 | 165.56.53.178 | 27552 |
| 7 | https | 10.66.32.44 | 37573 | 165.56.53.141 | 29821 |
| 8 | udp | 172.21.242.243 | 10188 | 41.72.123.88 | 55777
you should initialize natted_ip and natted_port outside of for like below code.
because this variables save data from previous record and you don't clear them. it can be happen for all variables that can be null.
natted_ip = null;
natted_port = null;
for(String string:splitIP_and_port){
natted_ip = splitIP_and_port[0].trim();
natted_port = splitIP_and_port[1].trim();
}
I'm new in Spark Java API. I want to filter my Dataset where a column is not a number. My dataset ds1 is something like this.
+---------+------------+
| account| amount |
+---------+------------+
| aaaaaa | |
| aaaaaa | |
| bbbbbb | |
| 123333 | |
| 555555 | |
| 666666 | |
I want return a datset ds2 like this:
+---------+------------+
| account| amount |
+---------+------------+
| 123333 | |
| 555555 | |
| 666666 | |
I tried this but id doesn't work for me.
ds2=ds1.select("account"). where(dsFec.col("account").isNaN());
Can someone please guides me with a sample spark expression to resolve this.
You can define a udf function to check whether the string in account column is numeric or not as
UDF1 checkNumeric = new UDF1<String, Boolean>() {
public Boolean call(final String account) throws Exception {
return StringUtils.isNumeric(account);
}
};
sqlContext.udf().register("numeric", checkNumeric, DataTypes.BooleanType);
and then use callUDF function to call the udf function as
df.filter(callUDF("numeric", col("account"))).show();
which should give you
+-------+------+
|account|amount|
+-------+------+
| 123333| |
| 555555| |
| 666666| |
+-------+------+
Just cast and check if result is null:
ds1.select("account").where(dsFec.col("account").cast("bigint").isNotNull());
One way to do this:
Scala Equivalent:
import scala.util.Try
df.filter(r => Try(r.getString(0).toInt).isSuccess).show()
+-------+------+
|account|amount|
+-------+------+
| 123333| |
| 555555| |
| 666666| |
+-------+------+
Or You can use the same using Java's try catch:
df.map(r => (r.getString(0),r.getString(1),{try{r.getString(0).toInt; true
}catch {
case runtime: RuntimeException => {
false}
}
})).filter(_._3 == true).drop("_3").show()
+------+---+
| _1| _2|
+------+---+
|123333| |
|555555| |
|666666| |
+------+---+
I am working on a Sequence diagram, but I am confused on how to show the following bit of sequence diagram.
I am trying to instantiate a variable by first calling a function to get the variable type. I already have made myMainObject. So that object exists and I understand I have to do a create on something when I instantiate it.
myMainObject().getObjectController().getObject();
So does this mean I create ObjectController AND I also create Object lifelines?
--------------
| myMainObject |
-------------
|
| getObjectcontroller() -----------------
| ----------------------->| ObjectController|
| ------------------
| | getObject() ---------
| |--------------------->| Object |
| | ---------
| | |
|
Or is the following more than enough information? And let the programmer figure out on how to get the correct object.
--------------------------
| myMainObject: MainObject|
-------------------------
|
| myObject = getObject() ---------
| ----------------------->| Object |
| ---------
| |
| |
| |
| |
ObjectController doesn't call Object. You call both methods.
-----
| You |
-----
|
| getObjectcontroller() -------------
| ----------------------> | MainObject |
| -------------
| Objectcontroller |
| <----------------------------- |
| |
|
| getObject() ------------------
| ---------------------------------------> | Objectcontroller |
| ------------------
| Object |
| <------------------------------------------------ |
| |
I have this error after 20-30 minutes of inactivity
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet successfully received from the server was 2.383.932 milliseconds ago.
The last packet sent successfully to the server was 21.351 milliseconds ago.
I have checked Data Base options,but they are ok
mysql> show session variables like '%timeout%';
+----------------------------+-------+
| Variable_name | Value |
+----------------------------+-------+
| connect_timeout | 10 |
| delayed_insert_timeout | 300 |
| innodb_lock_wait_timeout | 50 |
| innodb_rollback_on_timeout | OFF |
| interactive_timeout | 28800 |
| net_read_timeout | 30 |
| net_write_timeout | 60 |
| slave_net_timeout | 3600 |
| table_lock_wait_timeout | 50 |
| wait_timeout | 28800 |
+----------------------------+-------+
10 rows in set (0.00 sec)
mysql> show global variables like '%timeoout%';
+----------------------------+-------+
| Variable_name | Value |
+----------------------------+-------+
| connect_timeout | 10 |
| delayed_insert_timeout | 300 |
| innodb_lock_wait_timeout | 50 |
| innodb_rollback_on_timeout | OFF |
| interactive_timeout | 28800 |
| net_read_timeout | 30 |
| net_write_timeout | 60 |
| slave_net_timeout | 3600 |
| table_lock_wait_timeout | 50 |
| wait_timeout | 28800 |
+----------------------------+-------+
10 rows in set (0.00 sec)
Connection class:
public class ConnectionDB {
Connection con;
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://XXXXXXXXXX:3306/";
String nomeutente = "XXXXXXX";
String password = "XXXXXXXX";
String nomedatabase = "XXXXXX";
public Boolean ok = false;
public Connection connect(){
try {
Class.forName(driver);
con = DriverManager.getConnection(url+nomedatabase,nomeutente,password);
ok = true;
return con;
} catch (ClassNotFoundException | SQLException e) {
new ErrorLog();
e.printStackTrace();
ok = false;
return null;
}
}
}