Examples with Nullable javax.annotation.Nullable used on opensource projects

Example 91 with Nullable

use of javax.annotation.Nullable in project cassandra by apache.

the class ViewBuilder method run.

public void run() {
    logger.trace("Running view builder for {}.{}", baseCfs.metadata.keyspace, view.name);
    UUID localHostId = SystemKeyspace.getLocalHostId();
    String ksname = baseCfs.metadata.keyspace, viewName = view.name;
    if (SystemKeyspace.isViewBuilt(ksname, viewName)) {
        if (!SystemKeyspace.isViewStatusReplicated(ksname, viewName))
            updateDistributed(ksname, viewName, localHostId);
        return;
    }
    Iterable<Range<Token>> ranges = StorageService.instance.getLocalRanges(baseCfs.metadata.keyspace);
    final Pair<Integer, Token> buildStatus = SystemKeyspace.getViewBuildStatus(ksname, viewName);
    Token lastToken;
    Function<org.apache.cassandra.db.lifecycle.View, Iterable<SSTableReader>> function;
    if (buildStatus == null) {
        baseCfs.forceBlockingFlush();
        function = org.apache.cassandra.db.lifecycle.View.selectFunction(SSTableSet.CANONICAL);
        int generation = Integer.MIN_VALUE;
        try (Refs<SSTableReader> temp = baseCfs.selectAndReference(function).refs) {
            for (SSTableReader reader : temp) {
                generation = Math.max(reader.descriptor.generation, generation);
            }
        }
        SystemKeyspace.beginViewBuild(ksname, viewName, generation);
        lastToken = null;
    } else {
        function = new Function<org.apache.cassandra.db.lifecycle.View, Iterable<SSTableReader>>() {

            @Nullable
            public Iterable<SSTableReader> apply(org.apache.cassandra.db.lifecycle.View view) {
                Iterable<SSTableReader> readers = org.apache.cassandra.db.lifecycle.View.selectFunction(SSTableSet.CANONICAL).apply(view);
                if (readers != null)
                    return Iterables.filter(readers, ssTableReader -> ssTableReader.descriptor.generation <= buildStatus.left);
                return null;
            }
        };
        lastToken = buildStatus.right;
    }
    prevToken = lastToken;
    try (Refs<SSTableReader> sstables = baseCfs.selectAndReference(function).refs;
        ReducingKeyIterator iter = new ReducingKeyIterator(sstables)) {
        SystemDistributedKeyspace.startViewBuild(ksname, viewName, localHostId);
        while (!isStopped && iter.hasNext()) {
            DecoratedKey key = iter.next();
            Token token = key.getToken();
            if (lastToken == null || lastToken.compareTo(token) < 0) {
                for (Range<Token> range : ranges) {
                    if (range.contains(token)) {
                        buildKey(key);
                        if (prevToken == null || prevToken.compareTo(token) != 0) {
                            SystemKeyspace.updateViewBuildStatus(ksname, viewName, key.getToken());
                            prevToken = token;
                        }
                    }
                }
                lastToken = null;
            }
        }
        if (!isStopped) {
            SystemKeyspace.finishViewBuildStatus(ksname, viewName);
            updateDistributed(ksname, viewName, localHostId);
        }
    } catch (Exception e) {
        ScheduledExecutors.nonPeriodicTasks.schedule(() -> CompactionManager.instance.submitViewBuilder(this), 5, TimeUnit.MINUTES);
        logger.warn("Materialized View failed to complete, sleeping 5 minutes before restarting", e);
    }
}

Example 92 with Nullable

use of javax.annotation.Nullable in project killbill by killbill.

the class CacheConfig method initializeCacheLoaderArgument.

private CacheLoaderArgument initializeCacheLoaderArgument() {
    final LoaderCallback loaderCallback = new LoaderCallback() {

        @Override
        public Object loadConfig(@Nullable final String inputJson) throws IOException {
            return inputJson != null ? objectMapper.readValue(inputJson, PerTenantConfig.class) : new PerTenantConfig();
        }
    };
    final Object[] args = new Object[1];
    args[0] = loaderCallback;
    final ObjectType irrelevant = null;
    final InternalTenantContext notUsed = null;
    return new CacheLoaderArgument(irrelevant, args, notUsed);
}

Example 93 with Nullable

use of javax.annotation.Nullable in project keywhiz by square.

the class ExpirationExtractor method expirationFromOpenPGP.

@Nullable
public static Instant expirationFromOpenPGP(byte[] content) {
    JcaPGPPublicKeyRingCollection collection;
    try {
        collection = new JcaPGPPublicKeyRingCollection(new ByteArrayInputStream(content));
    } catch (IOException | PGPException e) {
        // Unable to parse
        logger.info("Failed to parse OpenPGP keyring", e);
        return null;
    }
    Instant earliest = null;
    // Iterate over all key rings in file
    Iterator rings = collection.getKeyRings();
    while (rings.hasNext()) {
        Object ringItem = rings.next();
        if (ringItem instanceof PGPPublicKeyRing) {
            PGPPublicKeyRing ring = (PGPPublicKeyRing) ringItem;
            // Iterate over all keys in ring
            Iterator keys = ring.getPublicKeys();
            while (keys.hasNext()) {
                Object keyItem = keys.next();
                if (keyItem instanceof PGPPublicKey) {
                    PGPPublicKey key = (PGPPublicKey) keyItem;
                    // Get validity for key (zero means no expiry)
                    long validSeconds = key.getValidSeconds();
                    if (validSeconds > 0) {
                        Instant expiry = key.getCreationTime().toInstant().plusSeconds(validSeconds);
                        if (earliest == null || expiry.isBefore(earliest)) {
                            earliest = expiry;
                        }
                    }
                }
            }
        }
    }
    return earliest;
}

Example 94 with Nullable

use of javax.annotation.Nullable in project keywhiz by square.

the class ExpirationExtractor method expirationFromRawCertificate.

@Nullable
public static Instant expirationFromRawCertificate(byte[] content) {
    CertificateFactory cf;
    try {
        cf = CertificateFactory.getInstance("X.509");
    } catch (CertificateException e) {
        // Should never happen (X.509 supported by default)
        throw Throwables.propagate(e);
    }
    X509Certificate cert;
    try {
        cert = (X509Certificate) cf.generateCertificate(new ByteArrayInputStream(content));
    } catch (CertificateException e) {
        // Certificate must have been invalid
        logger.info("Failed to parse certificate", e);
        return null;
    }
    return cert.getNotAfter().toInstant();
}

Example 95 with Nullable

use of javax.annotation.Nullable in project keywhiz by square.

the class ExpirationExtractor method expirationFromEncodedCertificateChain.

@Nullable
public static Instant expirationFromEncodedCertificateChain(byte[] content) {
    PemReader reader = new PemReader(new InputStreamReader(new ByteArrayInputStream(content), UTF_8));
    PemObject object;
    try {
        object = reader.readPemObject();
    } catch (IOException e) {
        // Should never occur (reading form byte array)
        throw Throwables.propagate(e);
    }
    Instant earliest = null;
    while (object != null) {
        if (object.getType().equals("CERTIFICATE")) {
            Instant expiry = expirationFromRawCertificate(object.getContent());
            if (earliest == null || expiry.isBefore(earliest)) {
                earliest = expiry;
            }
        }
        try {
            object = reader.readPemObject();
        } catch (IOException e) {
            // Should never occur (reading form byte array)
            throw Throwables.propagate(e);
        }
    }
    return earliest;
}