Hi
I have a SessionBean which is dealing with a remote http-webservice. Sometime
the webservie is down and I need to get a timeout within a reasonable time.
Therefore I implemented in my SessionBean business method a own transaction
handling via UserTransaction and the TransactionTimeout functionality.
Unfortunately when the time out is reached the method throws no exception, it
still tying to connect to the webservice.
| public Hashtable getArchiveItemList(String mandantId, Hashtable params, int
responseSizeLimit) throws Exception {
| UserTransaction transaction = ejbContext.getUserTransaction();
|
| try{
| transaction.setTransactionTimeout(10);
| transaction.begin();
|
| // --> Web service connection code...
| // not showed...
|
| transaction.commit();
| }
| catch(Exception e){
| transaction.rollback();
| NovoPortalLog.error(this,"getDocumentList()",e);
| throw new Exception(e.getMessage());
| }
| }
|
The 10 Sec. timeout works, I get the following WARN in the server.log
| 15:15:39,702 WARN [TransactionImpl] Transaction
TransactionImpl:XidImpl[FormatId=257, GlobalId=meilen/8, BranchQual=,
localId=8] timed out. status=STATUS_ACTIVE
|
About 4 minutes later I get than a exception from the Webservice.
Q1) Should not a Exception be thrown when the UserTransaction timeout is reach?
Q2) Is there any alternative to handle a transaction timeout?
Many thanks!
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