Examples with Singleton com.google.inject.Singleton used on opensource projects

Example 51 with Singleton

use of com.google.inject.Singleton in project cdap by caskdata.

the class UpgradeTool method createInjector.

@VisibleForTesting
Injector createInjector() throws Exception {
    return Guice.createInjector(new ConfigModule(cConf, hConf), new LocationRuntimeModule().getDistributedModules(), new ZKClientModule(), new DiscoveryRuntimeModule().getDistributedModules(), new MessagingClientModule(), Modules.override(new DataSetsModules().getDistributedModules()).with(new AbstractModule() {

        @Override
        protected void configure() {
            bind(DatasetFramework.class).to(InMemoryDatasetFramework.class).in(Scopes.SINGLETON);
            // the DataSetsModules().getDistributedModules() binds to RemoteDatasetFramework so override that to
            // the same InMemoryDatasetFramework
            bind(DatasetFramework.class).annotatedWith(Names.named(DataSetsModules.BASE_DATASET_FRAMEWORK)).to(DatasetFramework.class);
            install(new FactoryModuleBuilder().implement(DatasetDefinitionRegistry.class, DefaultDatasetDefinitionRegistry.class).build(DatasetDefinitionRegistryFactory.class));
            // CDAP-5954 Upgrade tool does not need to record lineage and metadata changes for now.
            bind(LineageWriter.class).to(NoOpLineageWriter.class);
        }
    }), new ViewAdminModules().getDistributedModules(), new StreamAdminModules().getDistributedModules(), new NotificationFeedClientModule(), new TwillModule(), new ExploreClientModule(), new ProgramRunnerRuntimeModule().getDistributedModules(), new ServiceStoreModules().getDistributedModules(), new SystemDatasetRuntimeModule().getDistributedModules(), // don't need real notifications for upgrade, so use the in-memory implementations
    new NotificationServiceRuntimeModule().getInMemoryModules(), new KafkaClientModule(), new NamespaceStoreModule().getDistributedModules(), new AuthenticationContextModules().getMasterModule(), new AuthorizationModule(), new AuthorizationEnforcementModule().getMasterModule(), new SecureStoreModules().getDistributedModules(), new DataFabricModules(UpgradeTool.class.getName()).getDistributedModules(), new AppFabricServiceRuntimeModule().getDistributedModules(), new AbstractModule() {

        @Override
        protected void configure() {
            // the DataFabricDistributedModule needs MetricsCollectionService binding and since Upgrade tool does not do
            // anything with Metrics we just bind it to NoOpMetricsCollectionService
            bind(MetricsCollectionService.class).to(NoOpMetricsCollectionService.class).in(Scopes.SINGLETON);
            bind(MetricDatasetFactory.class).to(DefaultMetricDatasetFactory.class).in(Scopes.SINGLETON);
            bind(MetricStore.class).to(DefaultMetricStore.class);
        }

        @Provides
        @Singleton
        @Named("datasetInstanceManager")
        @SuppressWarnings("unused")
        public DatasetInstanceManager getDatasetInstanceManager(TransactionSystemClientService txClient, TransactionExecutorFactory txExecutorFactory, @Named("datasetMDS") DatasetFramework framework) {
            return new DatasetInstanceManager(txClient, txExecutorFactory, framework);
        }

        // This is needed because the LocalApplicationManager
        // expects a dsframework injection named datasetMDS
        @Provides
        @Singleton
        @Named("datasetMDS")
        @SuppressWarnings("unused")
        public DatasetFramework getInDsFramework(DatasetFramework dsFramework) {
            return dsFramework;
        }
    });
}

Example 52 with Singleton

use of com.google.inject.Singleton in project cdap by caskdata.

the class CoprocessorBuildTool method main.

public static void main(final String[] args) throws ParseException {
    Options options = new Options().addOption(new Option("h", "help", false, "Print this usage message.")).addOption(new Option("f", "force", false, "Overwrites any coprocessors that already exist."));
    CommandLineParser parser = new BasicParser();
    CommandLine commandLine = parser.parse(options, args);
    String[] commandArgs = commandLine.getArgs();
    // if help is an option, or if there isn't a single 'ensure' command, print usage and exit.
    if (commandLine.hasOption("h") || commandArgs.length != 1 || !"check".equalsIgnoreCase(commandArgs[0])) {
        HelpFormatter helpFormatter = new HelpFormatter();
        helpFormatter.printHelp(CoprocessorBuildTool.class.getName() + " check", "Checks that HBase coprocessors required by CDAP are loaded onto HDFS. " + "If not, the coprocessors are built and placed on HDFS.", options, "");
        System.exit(0);
    }
    boolean overwrite = commandLine.hasOption("f");
    CConfiguration cConf = CConfiguration.create();
    Configuration hConf = HBaseConfiguration.create();
    Injector injector = Guice.createInjector(new ConfigModule(cConf, hConf), // for LocationFactory
    new PrivateModule() {

        @Override
        protected void configure() {
            bind(FileContext.class).toProvider(FileContextProvider.class).in(Scopes.SINGLETON);
            expose(LocationFactory.class);
        }

        @Provides
        @Singleton
        private LocationFactory providesLocationFactory(Configuration hConf, CConfiguration cConf, FileContext fc) {
            final String namespace = cConf.get(Constants.CFG_HDFS_NAMESPACE);
            if (UserGroupInformation.isSecurityEnabled()) {
                return new FileContextLocationFactory(hConf, namespace);
            }
            return new InsecureFileContextLocationFactory(hConf, namespace, fc);
        }
    });
    try {
        SecurityUtil.loginForMasterService(cConf);
    } catch (Exception e) {
        LOG.error("Failed to login as CDAP user", e);
        System.exit(1);
    }
    LocationFactory locationFactory = injector.getInstance(LocationFactory.class);
    HBaseTableUtil tableUtil = new HBaseTableUtilFactory(cConf).get();
    CoprocessorManager coprocessorManager = new CoprocessorManager(cConf, locationFactory, tableUtil);
    try {
        Location location = coprocessorManager.ensureCoprocessorExists(overwrite);
        LOG.info("coprocessor exists at {}.", location);
    } catch (IOException e) {
        LOG.error("Unable to build and upload coprocessor jars.", e);
        System.exit(1);
    }
}

Example 53 with Singleton

use of com.google.inject.Singleton in project stdlib by petergeneric.

the class ThymeleafModule method getTemplateEngine.

@Provides
@Singleton
public TemplateEngine getTemplateEngine(ITemplateResolver resolver) {
    TemplateEngine engine = new TemplateEngine();
    engine.setTemplateResolver(resolver);
    return engine;
}

Example 54 with Singleton

use of com.google.inject.Singleton in project Singularity by HubSpot.

the class SingularityExecutorModule method providesHttpClient.

@Provides
@Singleton
@Named(LOCAL_DOWNLOAD_HTTP_CLIENT)
public AsyncHttpClient providesHttpClient(SingularityExecutorConfiguration configuration) {
    AsyncHttpClientConfig.Builder configBldr = new AsyncHttpClientConfig.Builder();
    configBldr.setRequestTimeoutInMs((int) configuration.getLocalDownloadServiceTimeoutMillis());
    configBldr.setIdleConnectionTimeoutInMs((int) configuration.getLocalDownloadServiceTimeoutMillis());
    configBldr.addRequestFilter(new ThrottleRequestFilter(configuration.getLocalDownloadServiceMaxConnections()));
    return new AsyncHttpClient(configBldr.build());
}

Example 55 with Singleton

use of com.google.inject.Singleton in project apollo by spotify.

the class MetricsModule method semanticMetricRegistry.

@Provides
@Singleton
public SemanticMetricRegistry semanticMetricRegistry() {
    final SemanticMetricRegistry metricRegistry = new SemanticMetricRegistry();
    LOG.info("Creating SemanticMetricRegistry");
    // register JVM metricSets, using an empty MetricId as the FastForwardReporter will prepend
    // the injected MetricId.
    metricRegistry.register(MetricId.EMPTY, new MemoryUsageGaugeSet());
    metricRegistry.register(MetricId.EMPTY, new GarbageCollectorMetricSet());
    metricRegistry.register(MetricId.EMPTY, new ThreadStatesMetricSet());
    metricRegistry.register(MetricId.EMPTY, CpuGaugeSet.create());
    metricRegistry.register(MetricId.EMPTY, new FileDescriptorGaugeSet());
    return metricRegistry;
}