Examples with Header org.neo4j.internal.batchimport.input.csv.Header used on opensource projects

Example 1 with Header

use of org.neo4j.internal.batchimport.input.csv.Header in project neo4j by neo4j.

the class DataGeneratorInput method bareboneNodeHeader.

public static Header bareboneNodeHeader(String idKey, IdType idType, Extractors extractors, Entry... additionalEntries) {
    List<Entry> entries = new ArrayList<>();
    entries.add(new Entry(idKey, Type.ID, null, idExtractor(idType, extractors)));
    entries.add(new Entry(null, Type.LABEL, null, extractors.stringArray()));
    entries.addAll(asList(additionalEntries));
    return new Header(entries.toArray(new Entry[0]));
}

Example 2 with Header

use of org.neo4j.internal.batchimport.input.csv.Header in project neo4j by neo4j.

the class QuickImport method main.

public static void main(String[] arguments) throws IOException {
    Args args = Args.parse(arguments);
    long nodeCount = parseLongWithUnit(args.get("nodes", null));
    long relationshipCount = parseLongWithUnit(args.get("relationships", null));
    int labelCount = args.getNumber("labels", 4).intValue();
    int relationshipTypeCount = args.getNumber("relationship-types", 4).intValue();
    Path dir = Path.of(args.get("into"));
    long randomSeed = args.getNumber("random-seed", currentTimeMillis()).longValue();
    Configuration config = Configuration.COMMAS;
    Extractors extractors = new Extractors(config.arrayDelimiter());
    IdType idType = IdType.valueOf(args.get("id-type", IdType.INTEGER.name()));
    Groups groups = new Groups();
    Header nodeHeader = parseNodeHeader(args, idType, extractors, groups);
    Header relationshipHeader = parseRelationshipHeader(args, idType, extractors, groups);
    Config dbConfig;
    String dbConfigFileName = args.get("db-config", null);
    if (dbConfigFileName != null) {
        dbConfig = Config.newBuilder().fromFile(Path.of(dbConfigFileName)).build();
    } else {
        dbConfig = Config.defaults();
    }
    Boolean highIo = args.has("high-io") ? args.getBoolean("high-io") : null;
    LogProvider logging = NullLogProvider.getInstance();
    long pageCacheMemory = args.getNumber("pagecache-memory", org.neo4j.internal.batchimport.Configuration.MAX_PAGE_CACHE_MEMORY).longValue();
    org.neo4j.internal.batchimport.Configuration importConfig = new org.neo4j.internal.batchimport.Configuration.Overridden(defaultConfiguration(dir)) {

        @Override
        public int maxNumberOfProcessors() {
            return args.getNumber("processors", super.maxNumberOfProcessors()).intValue();
        }

        @Override
        public boolean highIO() {
            return highIo != null ? highIo : super.highIO();
        }

        @Override
        public long pageCacheMemory() {
            return pageCacheMemory;
        }

        @Override
        public long maxMemoryUsage() {
            String custom = args.get("max-memory", null);
            return custom != null ? parseMaxMemory(custom) : super.maxMemoryUsage();
        }

        @Override
        public IndexConfig indexConfig() {
            return IndexConfig.create().withLabelIndex().withRelationshipTypeIndex();
        }
    };
    float factorBadNodeData = args.getNumber("factor-bad-node-data", 0).floatValue();
    float factorBadRelationshipData = args.getNumber("factor-bad-relationship-data", 0).floatValue();
    Input input = new DataGeneratorInput(nodeCount, relationshipCount, idType, randomSeed, 0, nodeHeader, relationshipHeader, labelCount, relationshipTypeCount, factorBadNodeData, factorBadRelationshipData);
    try (FileSystemAbstraction fileSystem = new DefaultFileSystemAbstraction();
        Lifespan life = new Lifespan()) {
        BatchImporter consumer;
        if (args.getBoolean("to-csv")) {
            consumer = new CsvOutput(dir, nodeHeader, relationshipHeader, config);
        } else {
            System.out.println("Seed " + randomSeed);
            final JobScheduler jobScheduler = life.add(createScheduler());
            boolean verbose = args.getBoolean("v");
            ExecutionMonitor monitor = verbose ? new SpectrumExecutionMonitor(2, TimeUnit.SECONDS, System.out, 100) : defaultVisible();
            consumer = BatchImporterFactory.withHighestPriority().instantiate(DatabaseLayout.ofFlat(dir), fileSystem, PageCacheTracer.NULL, importConfig, new SimpleLogService(logging, logging), monitor, EMPTY, dbConfig, RecordFormatSelector.selectForConfig(dbConfig, logging), NO_MONITOR, jobScheduler, Collector.EMPTY, TransactionLogInitializer.getLogFilesInitializer(), new IndexImporterFactoryImpl(dbConfig), INSTANCE);
        }
        consumer.doImport(input);
    }
}

Example 3 with Header

use of org.neo4j.internal.batchimport.input.csv.Header in project neo4j by neo4j.

the class DataGeneratorInput method bareboneRelationshipHeader.

public static Header bareboneRelationshipHeader(IdType idType, Extractors extractors, Entry... additionalEntries) {
    List<Entry> entries = new ArrayList<>();
    entries.add(new Entry(null, Type.START_ID, null, idExtractor(idType, extractors)));
    entries.add(new Entry(null, Type.END_ID, null, idExtractor(idType, extractors)));
    entries.add(new Entry(null, Type.TYPE, null, extractors.string()));
    entries.addAll(asList(additionalEntries));
    return new Header(entries.toArray(new Entry[0]));
}