Maybe try catching RuntimeException
On Tue, Nov 5, 2013 at 2:24 PM, <sggra...@nc.rr.com> wrote: > Hi All: > I am trying to programmatically create Topics from a Java client. > > I am using a suggestion from > http://stackoverflow.com/questions/16946778/how-can-we-create-a-topic-in-kafka-from-the-ide-using-api/18480684#18480684 > > Essentially invoking the CreateTopicCommand.main(). > > String [] arguments = new String[8]; > arguments[0] = "--zookeeper"; > arguments[1] = "localhost:2181"; > arguments[2] = "--replica"; > arguments[3] = "1"; > arguments[4] = "--partition"; > arguments[5] = "5"; > arguments[6] = "--topic"; > arguments[7] = "someTopicName"; > > try{ > CreateTopicCommand.main(arguments); > }catch(Exception e){ > System.out.println("Topic someTopicName exists."); > } > > This code works fine the first time it is run (i.e. the Topic does not yet > exist). > > Unfortunately, when this is run a second time, an exception is thrown from > Scala that the Java catch block DOES NOT CATCH! > > I tried using the ListTopicsCommand, but there is no boolean response to > verify if the topic already exists. > > Any suggestions? > > thanks > sgg >
