- /**
- *
- * Invokes preCommit on underlying cohorts and returns future
- * which will complete once all preCommit on cohorts completed or
- * failed.
- *
- *
- * Valid state transition is from CAN_COMMIT to PRE_COMMIT, if current
- * state is not CAN_COMMIT
- * throws IllegalStateException.
- *
- * @return Future which will complete once all cohorts completed
- * preCommit.
- * Future throws TransactionCommitFailedException
- * If any of cohorts failed preCommit
- *
- */
- private CheckedFuture<Void, TransactionCommitFailedException> preCommitAll() {
- changeStateFrom(CommitPhase.CAN_COMMIT, CommitPhase.PRE_COMMIT);
- Builder<ListenableFuture<Void>> ops = ImmutableList.builder();
- for (DOMStoreThreePhaseCommitCohort cohort : cohorts) {
- ops.add(cohort.preCommit());
- }
- /*
- * We are returing all futures as list, not only succeeded ones in
- * order to fail composite future if any of them failed.
- * See Futures.allAsList for this description.
- */
- @SuppressWarnings({ "unchecked", "rawtypes" })
- ListenableFuture<Void> compositeResult = (ListenableFuture) Futures.allAsList(ops.build());
- return MappingCheckedFuture.create(compositeResult,
- TransactionCommitFailedExceptionMapper.PRE_COMMIT_MAPPER);
- }
-
- /**
- *
- * Invokes commit on underlying cohorts and returns future which
- * completes
- * once all commits on cohorts are completed.
- *
- * Valid state transition is from PRE_COMMIT to COMMIT, if not throws
- * IllegalStateException
- *
- * @return Future which will complete once all cohorts completed
- * commit.
- * Future throws TransactionCommitFailedException
- * If any of cohorts failed preCommit
- *
- */
- private CheckedFuture<Void, TransactionCommitFailedException> commitAll() {
- changeStateFrom(CommitPhase.PRE_COMMIT, CommitPhase.COMMIT);
- Builder<ListenableFuture<Void>> ops = ImmutableList.builder();
- for (DOMStoreThreePhaseCommitCohort cohort : cohorts) {
- ops.add(cohort.commit());
- }
- /*
- * We are returing all futures as list, not only succeeded ones in
- * order to fail composite future if any of them failed.
- * See Futures.allAsList for this description.
- */
- @SuppressWarnings({ "unchecked", "rawtypes" })
- ListenableFuture<Void> compositeResult = (ListenableFuture) Futures.allAsList(ops.build());
- return MappingCheckedFuture.create(compositeResult,
- TransactionCommitFailedExceptionMapper.COMMIT_ERROR_MAPPER);
- }
-
- /**
- *
- * Invokes canCommit on underlying cohorts and returns composite future
- * which will contains {@link Boolean#TRUE} only and only if
- * all cohorts returned true.
- *
- * Valid state transition is from SUBMITTED to CAN_COMMIT,
- * if currentPhase is not SUBMITTED throws IllegalStateException.
- *
- * @return Future which will complete once all cohorts completed
- * preCommit.
- * Future throws TransactionCommitFailedException
- * If any of cohorts failed preCommit
- *
- */
- private CheckedFuture<Boolean, TransactionCommitFailedException> canCommitAll() {
- changeStateFrom(CommitPhase.SUBMITTED, CommitPhase.CAN_COMMIT);
- Builder<ListenableFuture<Boolean>> canCommitOperations = ImmutableList.builder();
- for (DOMStoreThreePhaseCommitCohort cohort : cohorts) {
- canCommitOperations.add(cohort.canCommit());
- }
- ListenableFuture<List<Boolean>> allCanCommits = Futures.allAsList(canCommitOperations.build());
- ListenableFuture<Boolean> allSuccessFuture = Futures.transform(allCanCommits, AND_FUNCTION);
- return MappingCheckedFuture.create(allSuccessFuture,
- TransactionCommitFailedExceptionMapper.CAN_COMMIT_ERROR_MAPPER);
-
- }
-