Examples with TransactionRepresentationCommitProcess org.neo4j.kernel.impl.api.TransactionRepresentationCommitProcess used on opensource projects

Example 1 with TransactionRepresentationCommitProcess

use of org.neo4j.kernel.impl.api.TransactionRepresentationCommitProcess in project neo4j by neo4j.

the class ApplyTransactionsCommand method applyTransactions.

private long applyTransactions(File fromPath, GraphDatabaseAPI toDb, long fromTxExclusive, long toTxInclusive, PrintStream out) throws IOException, TransactionFailureException {
    DependencyResolver resolver = toDb.getDependencyResolver();
    TransactionRepresentationCommitProcess commitProcess = new TransactionRepresentationCommitProcess(resolver.resolveDependency(TransactionAppender.class), resolver.resolveDependency(StorageEngine.class));
    LifeSupport life = new LifeSupport();
    try (DefaultFileSystemAbstraction fileSystem = new DefaultFileSystemAbstraction();
        PageCache pageCache = StandalonePageCacheFactory.createPageCache(fileSystem)) {
        LogicalTransactionStore source = life.add(new ReadOnlyTransactionStore(pageCache, fileSystem, fromPath, new Monitors()));
        life.start();
        long lastAppliedTx = fromTxExclusive;
        // Some progress if there are more than a couple of transactions to apply
        ProgressListener progress = toTxInclusive - fromTxExclusive >= 100 ? textual(out).singlePart("Application progress", toTxInclusive - fromTxExclusive) : ProgressListener.NONE;
        try (IOCursor<CommittedTransactionRepresentation> cursor = source.getTransactions(fromTxExclusive + 1)) {
            while (cursor.next()) {
                CommittedTransactionRepresentation transaction = cursor.get();
                TransactionRepresentation transactionRepresentation = transaction.getTransactionRepresentation();
                try {
                    commitProcess.commit(new TransactionToApply(transactionRepresentation), NULL, EXTERNAL);
                    progress.add(1);
                } catch (final Throwable e) {
                    System.err.println("ERROR applying transaction " + transaction.getCommitEntry().getTxId());
                    throw e;
                }
                lastAppliedTx = transaction.getCommitEntry().getTxId();
                if (lastAppliedTx == toTxInclusive) {
                    break;
                }
            }
        }
        return lastAppliedTx;
    } finally {
        life.shutdown();
    }
}

Example 2 with TransactionRepresentationCommitProcess

use of org.neo4j.kernel.impl.api.TransactionRepresentationCommitProcess in project neo4j by neo4j.

the class CommitProcessSwitcher method getMasterImpl.

@Override
protected TransactionCommitProcess getMasterImpl() {
    TransactionCommitProcess commitProcess = new TransactionRepresentationCommitProcess(dependencyResolver.resolveDependency(TransactionAppender.class), dependencyResolver.resolveDependency(StorageEngine.class));
    IntegrityValidator validator = dependencyResolver.resolveDependency(IntegrityValidator.class);
    return new MasterTransactionCommitProcess(commitProcess, txPropagator, validator, monitor, locks, reacquireSharedSchemaLockOnIncomingTransactions);
}