Examples with ValueMapper org.neo4j.values.ValueMapper used on opensource projects

Example 1 with ValueMapper

use of org.neo4j.values.ValueMapper in project neo4j by neo4j.

the class DatabaseManagementServiceFactory method setupProcedures.

/**
 * Creates and registers the systems procedures, including those which belong to a particular edition.
 * N.B. This method takes a {@link DatabaseManager} as an unused parameter *intentionally*, in
 * order to enforce that the databaseManager must be constructed first.
 */
@SuppressWarnings("unused")
private static void setupProcedures(GlobalModule globalModule, AbstractEditionModule editionModule, DatabaseManager<?> databaseManager) {
    Supplier<GlobalProcedures> procedureInitializer = () -> {
        Config globalConfig = globalModule.getGlobalConfig();
        Path proceduresDirectory = globalConfig.get(GraphDatabaseSettings.plugin_dir);
        LogService logService = globalModule.getLogService();
        Log internalLog = logService.getInternalLog(GlobalProcedures.class);
        Log proceduresLog = logService.getUserLog(GlobalProcedures.class);
        ProcedureConfig procedureConfig = new ProcedureConfig(globalConfig);
        Edition neo4jEdition = globalModule.getDbmsInfo().edition;
        SpecialBuiltInProcedures builtInProcedures = new SpecialBuiltInProcedures(Version.getNeo4jVersion(), neo4jEdition.toString());
        GlobalProceduresRegistry globalProcedures = new GlobalProceduresRegistry(builtInProcedures, proceduresDirectory, internalLog, procedureConfig);
        globalProcedures.registerType(Node.class, NTNode);
        globalProcedures.registerType(NodeValue.class, NTNode);
        globalProcedures.registerType(Relationship.class, NTRelationship);
        globalProcedures.registerType(RelationshipValue.class, NTRelationship);
        globalProcedures.registerType(org.neo4j.graphdb.Path.class, NTPath);
        globalProcedures.registerType(PathValue.class, NTPath);
        globalProcedures.registerType(Geometry.class, NTGeometry);
        globalProcedures.registerType(Point.class, NTPoint);
        globalProcedures.registerType(PointValue.class, NTPoint);
        // Below components are not public API, but are made available for internal
        // procedures to call, and to provide temporary workarounds for the following
        // patterns:
        // - Batch-transaction imports (GDAPI, needs to be real and passed to background processing threads)
        // - Group-transaction writes (same pattern as above, but rather than splitting large transactions,
        // combine lots of small ones)
        // - Bleeding-edge performance (KernelTransaction, to bypass overhead of working with Core API)
        globalProcedures.registerComponent(DependencyResolver.class, Context::dependencyResolver, false);
        globalProcedures.registerComponent(KernelTransaction.class, ctx -> ctx.internalTransaction().kernelTransaction(), false);
        globalProcedures.registerComponent(GraphDatabaseAPI.class, Context::graphDatabaseAPI, false);
        globalProcedures.registerComponent(SystemGraphComponents.class, ctx -> globalModule.getSystemGraphComponents(), false);
        globalProcedures.registerComponent(ValueMapper.class, Context::valueMapper, true);
        // Register injected public API components
        globalProcedures.registerComponent(Log.class, ctx -> proceduresLog, true);
        globalProcedures.registerComponent(Transaction.class, new ProcedureTransactionProvider(), true);
        globalProcedures.registerComponent(org.neo4j.procedure.TerminationGuard.class, new TerminationGuardProvider(), true);
        globalProcedures.registerComponent(SecurityContext.class, Context::securityContext, true);
        globalProcedures.registerComponent(ProcedureCallContext.class, Context::procedureCallContext, true);
        globalProcedures.registerComponent(FulltextAdapter.class, ctx -> ctx.dependencyResolver().resolveDependency(FulltextAdapter.class), true);
        globalProcedures.registerComponent(GraphDatabaseService.class, ctx -> new GraphDatabaseFacade((GraphDatabaseFacade) ctx.graphDatabaseAPI(), new ProcedureLoginContextTransformer(ctx)), true);
        globalProcedures.registerComponent(DataCollector.class, ctx -> ctx.dependencyResolver().resolveDependency(DataCollector.class), false);
        // Edition procedures
        try {
            editionModule.registerProcedures(globalProcedures, procedureConfig, globalModule, databaseManager);
        } catch (KernelException e) {
            internalLog.error("Failed to register built-in edition procedures at start up: " + e.getMessage());
        }
        globalModule.getGlobalLife().add(globalProcedures);
        return globalProcedures;
    };
    GlobalProcedures procedures = tryResolveOrCreate(GlobalProcedures.class, globalModule.getExternalDependencyResolver(), procedureInitializer);
    if (procedures instanceof Consumer) {
        ((Consumer) procedures).accept(procedureInitializer);
    }
    globalModule.getGlobalDependencies().satisfyDependency(procedures);
}