Ejemplo n.º 1
0
 /** {@inheritDoc} */
 public void abort(Throwable cause) {
   assert Thread.currentThread() == owner : "Wrong thread";
   logger.log(Level.FINER, "abort {0}", this);
   switch (state) {
     case ACTIVE:
     case PREPARING:
       break;
     case ABORTING:
       return;
     case ABORTED:
       throw new MaybeRetryableTransactionNotActiveException(
           "Transaction is not active", abortCause);
     case COMMITTING:
     case COMMITTED:
       throw new IllegalStateException("Transaction is not active: " + state);
     default:
       throw new AssertionError();
   }
   state = State.ABORTING;
   abortCause = cause;
   for (TransactionParticipant participant : participants) {
     if (logger.isLoggable(Level.FINEST)) {
       logger.log(Level.FINEST, "abort {0} participant:{1}", this, participant);
     }
     try {
       participant.abort(this);
     } catch (RuntimeException e) {
       if (logger.isLoggable(Level.WARNING)) {
         logger.logThrow(Level.WARNING, e, "abort {0} participant:{1} failed", this, participant);
       }
     }
   }
   state = State.ABORTED;
 }
Ejemplo n.º 2
0
 /**
  * Commits this transaction
  *
  * @throws TransactionNotActiveException if the transaction has been aborted
  * @throws TransactionAbortedException if a call to {@link TransactionParticipant#prepare prepare}
  *     on a transaction participant aborts the transaction but does not throw an exception
  * @throws IllegalStateException if {@code prepare} has been called on any transaction participant
  *     and {@link Transaction#abort abort} has not been called on the transaction
  * @throws Exception any exception thrown when calling {@code prepare} on a participant
  * @see TransactionHandle#commit TransactionHandle.commit
  */
 void commit() throws Exception {
   assert Thread.currentThread() == owner : "Wrong thread";
   logger.log(Level.FINER, "commit {0}", this);
   if (state == State.ABORTED) {
     throw new MaybeRetryableTransactionNotActiveException(
         "Transaction is not active", abortCause);
   } else if (state != State.ACTIVE) {
     throw new IllegalStateException("Transaction is not active: " + state);
   }
   state = State.PREPARING;
   for (Iterator<TransactionParticipant> iter = participants.iterator(); iter.hasNext(); ) {
     TransactionParticipant participant = iter.next();
     try {
       if (iter.hasNext()) {
         boolean readOnly = participant.prepare(this);
         if (readOnly) {
           iter.remove();
         }
         if (logger.isLoggable(Level.FINEST)) {
           logger.log(
               Level.FINEST,
               "prepare {0} participant:{1} returns {2}",
               this,
               participant,
               readOnly);
         }
       } else {
         participant.prepareAndCommit(this);
         iter.remove();
         if (logger.isLoggable(Level.FINEST)) {
           logger.log(
               Level.FINEST, "prepareAndCommit {0} participant:{1} returns", this, participant);
         }
       }
     } catch (Exception e) {
       if (logger.isLoggable(Level.FINEST)) {
         logger.logThrow(
             Level.FINEST,
             e,
             "{0} {1} participant:{1} throws",
             iter.hasNext() ? "prepare" : "prepareAndCommit",
             this,
             participant);
       }
       if (state != State.ABORTED) {
         abort(e);
       }
       throw e;
     }
     if (state == State.ABORTED) {
       throw new MaybeRetryableTransactionAbortedException(
           "Transaction has been aborted", abortCause);
     }
   }
   state = State.COMMITTING;
   for (TransactionParticipant participant : participants) {
     if (logger.isLoggable(Level.FINEST)) {
       logger.log(Level.FINEST, "commit {0} participant:{1}", this, participant);
     }
     try {
       participant.commit(this);
     } catch (RuntimeException e) {
       if (logger.isLoggable(Level.WARNING)) {
         logger.logThrow(Level.WARNING, e, "commit {0} participant:{1} failed", this, participant);
       }
     }
   }
   state = State.COMMITTED;
 }