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

Example 96 with Nullable

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

the class ExpirationExtractor method expirationFromKeystore.

@Nullable
public static Instant expirationFromKeystore(String type, String password, byte[] content) {
    KeyStore ks;
    try {
        ks = KeyStore.getInstance(type);
    } catch (KeyStoreException e) {
        // Should never occur (assuming JCE is installed)
        throw Throwables.propagate(e);
    }
    try {
        ks.load(new ByteArrayInputStream(content), password.toCharArray());
    } catch (IOException | NoSuchAlgorithmException | CertificateException e) {
        // Failed to parse
        logger.info("Failed to parse keystore", e);
        return null;
    }
    Instant earliest = null;
    try {
        for (String alias : list(ks.aliases())) {
            Certificate[] chain = ks.getCertificateChain(alias);
            if (chain == null) {
                Certificate certificate = ks.getCertificate(alias);
                if (certificate == null) {
                    // No certs in this entry
                    continue;
                }
                chain = new Certificate[] { certificate };
            }
            for (Certificate cert : chain) {
                if (cert instanceof X509Certificate) {
                    X509Certificate c = (X509Certificate) cert;
                    if (earliest == null || c.getNotAfter().toInstant().isBefore(earliest)) {
                        earliest = c.getNotAfter().toInstant();
                    }
                }
            }
        }
    } catch (KeyStoreException e) {
        // Should never occur (ks was initialized)
        throw Throwables.propagate(e);
    }
    return earliest;
}

Example 97 with Nullable

use of javax.annotation.Nullable in project commons by twitter.

the class CmdLineProcessor method processParsers.

private void processParsers(Set<? extends Element> elements) {
    TypeElement parserType = typeElement(Parser.class);
    for (Element element : elements) {
        if (element.getKind() != ElementKind.CLASS) {
            error("Found an @ArgParser annotation on a non-class %s", element);
        } else {
            TypeElement parser = (TypeElement) element;
            if (!isAssignable(parser, Parser.class)) {
                error("Found an @ArgParser annotation on a non-Parser %s", element);
                return;
            }
            @Nullable String parsedType = getTypeArgument(parser, parserType);
            if (parsedType != null) {
                String parserClassName = getBinaryName(parser);
                getBuilder(parserClassName).addParser(parsedType, getBinaryName(parser));
            }
        }
    }
}

Example 98 with Nullable

use of javax.annotation.Nullable in project titan by thinkaurelius.

the class FulgoraGraphComputer method submit.

@Override
public Future<ComputerResult> submit() {
    if (executed)
        throw Exceptions.computerHasAlreadyBeenSubmittedAVertexProgram();
    else
        executed = true;
    // it is not possible execute a computer if it has no vertex program nor mapreducers
    if (null == vertexProgram && mapReduces.isEmpty())
        throw GraphComputer.Exceptions.computerHasNoVertexProgramNorMapReducers();
    // it is possible to run mapreducers without a vertex program
    if (null != vertexProgram) {
        GraphComputerHelper.validateProgramOnComputer(this, vertexProgram);
        this.mapReduces.addAll(this.vertexProgram.getMapReducers());
    }
    // if the user didn't set desired persistence/resultgraph, then get from vertex program or else, no persistence
    this.persistMode = GraphComputerHelper.getPersistState(Optional.ofNullable(this.vertexProgram), Optional.ofNullable(this.persistMode));
    this.resultGraphMode = GraphComputerHelper.getResultGraphState(Optional.ofNullable(this.vertexProgram), Optional.ofNullable(this.resultGraphMode));
    // determine the legality persistence and result graph options
    if (!this.features().supportsResultGraphPersistCombination(this.resultGraphMode, this.persistMode))
        throw GraphComputer.Exceptions.resultGraphPersistCombinationNotSupported(this.resultGraphMode, this.persistMode);
    memory = new FulgoraMemory(vertexProgram, mapReduces);
    return CompletableFuture.<ComputerResult>supplyAsync(() -> {
        final long time = System.currentTimeMillis();
        if (null != vertexProgram) {
            // ##### Execute vertex program
            vertexMemory = new FulgoraVertexMemory(expectedNumVertices, graph.getIDManager(), vertexProgram);
            // execute the vertex program
            vertexProgram.setup(memory);
            memory.completeSubRound();
            for (int iteration = 1; ; iteration++) {
                vertexMemory.nextIteration(vertexProgram.getMessageScopes(memory));
                jobId = name + "#" + iteration;
                VertexProgramScanJob.Executor job = VertexProgramScanJob.getVertexProgramScanJob(graph, memory, vertexMemory, vertexProgram);
                StandardScanner.Builder scanBuilder = graph.getBackend().buildEdgeScanJob();
                scanBuilder.setJobId(jobId);
                scanBuilder.setNumProcessingThreads(numThreads);
                scanBuilder.setWorkBlockSize(readBatchSize);
                scanBuilder.setJob(job);
                PartitionedVertexProgramExecutor pvpe = new PartitionedVertexProgramExecutor(graph, memory, vertexMemory, vertexProgram);
                try {
                    //Iterates over all vertices and computes the vertex program on all non-partitioned vertices. For partitioned ones, the data is aggregated
                    ScanMetrics jobResult = scanBuilder.execute().get();
                    long failures = jobResult.get(ScanMetrics.Metric.FAILURE);
                    if (failures > 0) {
                        throw new TitanException("Failed to process [" + failures + "] vertices in vertex program iteration [" + iteration + "]. Computer is aborting.");
                    }
                    //Runs the vertex program on all aggregated, partitioned vertices.
                    pvpe.run(numThreads, jobResult);
                    failures = jobResult.getCustom(PartitionedVertexProgramExecutor.PARTITION_VERTEX_POSTFAIL);
                    if (failures > 0) {
                        throw new TitanException("Failed to process [" + failures + "] partitioned vertices in vertex program iteration [" + iteration + "]. Computer is aborting.");
                    }
                } catch (Exception e) {
                    throw new TitanException(e);
                }
                vertexMemory.completeIteration();
                memory.completeSubRound();
                try {
                    if (this.vertexProgram.terminate(this.memory)) {
                        break;
                    }
                } finally {
                    memory.incrIteration();
                    memory.completeSubRound();
                }
            }
        }
        // ##### Execute mapreduce jobs
        // Collect map jobs
        Map<MapReduce, FulgoraMapEmitter> mapJobs = new HashMap<>(mapReduces.size());
        for (MapReduce mapReduce : mapReduces) {
            if (mapReduce.doStage(MapReduce.Stage.MAP)) {
                FulgoraMapEmitter mapEmitter = new FulgoraMapEmitter<>(mapReduce.doStage(MapReduce.Stage.REDUCE));
                mapJobs.put(mapReduce, mapEmitter);
            }
        }
        // Execute map jobs
        jobId = name + "#map";
        VertexMapJob.Executor job = VertexMapJob.getVertexMapJob(graph, vertexMemory, mapJobs);
        StandardScanner.Builder scanBuilder = graph.getBackend().buildEdgeScanJob();
        scanBuilder.setJobId(jobId);
        scanBuilder.setNumProcessingThreads(numThreads);
        scanBuilder.setWorkBlockSize(readBatchSize);
        scanBuilder.setJob(job);
        try {
            ScanMetrics jobResult = scanBuilder.execute().get();
            long failures = jobResult.get(ScanMetrics.Metric.FAILURE);
            if (failures > 0) {
                throw new TitanException("Failed to process [" + failures + "] vertices in map phase. Computer is aborting.");
            }
            failures = jobResult.getCustom(VertexMapJob.MAP_JOB_FAILURE);
            if (failures > 0) {
                throw new TitanException("Failed to process [" + failures + "] individual map jobs. Computer is aborting.");
            }
        } catch (Exception e) {
            throw new TitanException(e);
        }
        // Execute reduce phase and add to memory
        for (Map.Entry<MapReduce, FulgoraMapEmitter> mapJob : mapJobs.entrySet()) {
            FulgoraMapEmitter<?, ?> mapEmitter = mapJob.getValue();
            MapReduce mapReduce = mapJob.getKey();
            // sort results if a map output sort is defined
            mapEmitter.complete(mapReduce);
            if (mapReduce.doStage(MapReduce.Stage.REDUCE)) {
                final FulgoraReduceEmitter<?, ?> reduceEmitter = new FulgoraReduceEmitter<>();
                try (WorkerPool workers = new WorkerPool(numThreads)) {
                    workers.submit(() -> mapReduce.workerStart(MapReduce.Stage.REDUCE));
                    for (final Map.Entry queueEntry : mapEmitter.reduceMap.entrySet()) {
                        workers.submit(() -> mapReduce.reduce(queueEntry.getKey(), ((Iterable) queueEntry.getValue()).iterator(), reduceEmitter));
                    }
                    workers.submit(() -> mapReduce.workerEnd(MapReduce.Stage.REDUCE));
                } catch (Exception e) {
                    throw new TitanException("Exception while executing reduce phase", e);
                }
                //                    mapEmitter.reduceMap.entrySet().parallelStream().forEach(entry -> mapReduce.reduce(entry.getKey(), entry.getValue().iterator(), reduceEmitter));
                // sort results if a reduce output sort is defined
                reduceEmitter.complete(mapReduce);
                mapReduce.addResultToMemory(this.memory, reduceEmitter.reduceQueue.iterator());
            } else {
                mapReduce.addResultToMemory(this.memory, mapEmitter.mapQueue.iterator());
            }
        }
        // #### Write mutated properties back into graph
        Graph resultgraph = graph;
        if (persistMode == Persist.NOTHING && resultGraphMode == ResultGraph.NEW) {
            resultgraph = EmptyGraph.instance();
        } else if (persistMode != Persist.NOTHING && vertexProgram != null && !vertexProgram.getElementComputeKeys().isEmpty()) {
            //First, create property keys in graph if they don't already exist
            TitanManagement mgmt = graph.openManagement();
            try {
                for (String key : vertexProgram.getElementComputeKeys()) {
                    if (!mgmt.containsPropertyKey(key))
                        log.warn("Property key [{}] is not part of the schema and will be created. It is advised to initialize all keys.", key);
                    mgmt.getOrCreatePropertyKey(key);
                }
                mgmt.commit();
            } finally {
                if (mgmt != null && mgmt.isOpen())
                    mgmt.rollback();
            }
            //TODO: Filter based on VertexProgram
            Map<Long, Map<String, Object>> mutatedProperties = Maps.transformValues(vertexMemory.getMutableVertexProperties(), new Function<Map<String, Object>, Map<String, Object>>() {

                @Nullable
                @Override
                public Map<String, Object> apply(@Nullable Map<String, Object> o) {
                    return Maps.filterKeys(o, s -> !NON_PERSISTING_KEYS.contains(s));
                }
            });
            if (resultGraphMode == ResultGraph.ORIGINAL) {
                AtomicInteger failures = new AtomicInteger(0);
                try (WorkerPool workers = new WorkerPool(numThreads)) {
                    List<Map.Entry<Long, Map<String, Object>>> subset = new ArrayList<>(writeBatchSize / vertexProgram.getElementComputeKeys().size());
                    int currentSize = 0;
                    for (Map.Entry<Long, Map<String, Object>> entry : mutatedProperties.entrySet()) {
                        subset.add(entry);
                        currentSize += entry.getValue().size();
                        if (currentSize >= writeBatchSize) {
                            workers.submit(new VertexPropertyWriter(subset, failures));
                            subset = new ArrayList<>(subset.size());
                            currentSize = 0;
                        }
                    }
                    if (!subset.isEmpty())
                        workers.submit(new VertexPropertyWriter(subset, failures));
                } catch (Exception e) {
                    throw new TitanException("Exception while attempting to persist result into graph", e);
                }
                if (failures.get() > 0)
                    throw new TitanException("Could not persist program results to graph. Check log for details.");
            } else if (resultGraphMode == ResultGraph.NEW) {
                resultgraph = graph.newTransaction();
                for (Map.Entry<Long, Map<String, Object>> vprop : mutatedProperties.entrySet()) {
                    Vertex v = resultgraph.vertices(vprop.getKey()).next();
                    for (Map.Entry<String, Object> prop : vprop.getValue().entrySet()) {
                        v.property(VertexProperty.Cardinality.single, prop.getKey(), prop.getValue());
                    }
                }
            }
        }
        // update runtime and return the newly computed graph
        this.memory.setRuntime(System.currentTimeMillis() - time);
        this.memory.complete();
        return new DefaultComputerResult(resultgraph, this.memory);
    });
}

Example 99 with Nullable

use of javax.annotation.Nullable in project commons by twitter.

the class Args method from.

/**
   * Loads arg info from the given sources in addition to the default compile-time configuration.
   *
   * @param filter A predicate to select fields with.
   * @param sources Classes or object instances to scan for {@link Arg} fields.
   * @return The args info describing all discovered {@link Arg args}.
   * @throws IOException If there was a problem loading the default Args configuration.
   */
public static ArgsInfo from(Predicate<Field> filter, Iterable<?> sources) throws IOException {
    Preconditions.checkNotNull(filter);
    Preconditions.checkNotNull(sources);
    Configuration configuration = Configuration.load();
    ArgsInfo staticInfo = Args.fromConfiguration(configuration, filter);
    final ImmutableSet.Builder<PositionalInfo<?>> positionalInfos = ImmutableSet.<PositionalInfo<?>>builder().addAll(staticInfo.getPositionalInfo().asSet());
    final ImmutableSet.Builder<OptionInfo<?>> optionInfos = ImmutableSet.<OptionInfo<?>>builder().addAll(staticInfo.getOptionInfos());
    for (Object source : sources) {
        Class<?> clazz = source instanceof Class ? (Class) source : source.getClass();
        for (Field field : clazz.getDeclaredFields()) {
            if (filter.apply(field)) {
                boolean cmdLine = field.isAnnotationPresent(CmdLine.class);
                boolean positional = field.isAnnotationPresent(Positional.class);
                if (cmdLine && positional) {
                    throw new IllegalArgumentException("An Arg cannot be annotated with both @CmdLine and @Positional, found bad Arg " + "field: " + field);
                } else if (cmdLine) {
                    optionInfos.add(OptionInfo.createFromField(field, source));
                } else if (positional) {
                    positionalInfos.add(PositionalInfo.createFromField(field, source));
                }
            }
        }
    }
    @Nullable PositionalInfo<?> positionalInfo = Iterables.getOnlyElement(positionalInfos.build(), null);
    return new ArgsInfo(configuration, Optional.fromNullable(positionalInfo), optionInfos.build());
}

Example 100 with Nullable

use of javax.annotation.Nullable in project commons by twitter.

the class CmdLineProcessor method processVerifiers.

private void processVerifiers(Set<? extends Element> elements) {
    TypeElement verifierType = typeElement(Verifier.class);
    TypeElement verifierForType = typeElement(VerifierFor.class);
    for (Element element : elements) {
        if (element.getKind() != ElementKind.CLASS) {
            error("Found a @VerifierFor annotation on a non-class %s", element);
        } else {
            TypeElement verifier = (TypeElement) element;
            if (!isAssignable(verifier, Verifier.class)) {
                error("Found a @Verifier annotation on a non-Verifier %s", element);
                return;
            }
            String verifierClassName = getBinaryName(verifier);
            @Nullable AnnotationMirror verifierFor = getAnnotationMirror(verifier, verifierForType);
            if (verifierFor != null) {
                @Nullable TypeElement verifyAnnotationType = getClassType(verifierFor, "value", null);
                if (verifyAnnotationType != null) {
                    @Nullable String verifiedType = getTypeArgument(verifier, verifierType);
                    if (verifiedType != null) {
                        String verifyAnnotationClassName = elementUtils.getBinaryName(verifyAnnotationType).toString();
                        getBuilder(verifierClassName).addVerifier(verifiedType, verifyAnnotationClassName, verifierClassName);
                    }
                }
            }
        }
    }
}