public int prepare()

in tx-control-services/tx-control-service-xa/src/main/java/org/apache/aries/tx/control/service/xa/impl/TransactionContextImpl.java [411:425]

• 15 lines of code
• 4 McCabe index (conditional complexity)

		public int prepare(Xid xid) throws XAException {
			if(!finished.compareAndSet(false, true)) {
				switch(getTransactionStatus()) {
					case COMMITTING:
						return XA_OK;
					case ROLLING_BACK:
						throw new XAException(XA_RBOTHER);
					default:
						throw new XAException(XA_RBPROTO);
				}
			}
			completionState.set(COMMITTING);
			doCommit();
			return XA_OK;
		}