Examples with LimiterFactory org.apache.gobblin.util.limiter.LimiterFactory used on opensource projects

Example 1 with LimiterFactory

use of org.apache.gobblin.util.limiter.LimiterFactory in project incubator-gobblin by apache.

the class SharedLimiterFactory method createResource.

@Override
public SharedResourceFactoryResponse<Limiter> createResource(SharedResourcesBroker<S> broker, ScopedConfigView<S, SharedLimiterKey> configView) throws NotConfiguredException {
    Config config = configView.getConfig();
    SharedLimiterKey.GlobalLimiterPolicy globalLimiterPolicy = configView.getKey().getGlobalLimiterPolicy();
    if (ConfigUtils.getBoolean(config, SKIP_GLOBAL_LIMITER_KEY, false)) {
        if (globalLimiterPolicy != SharedLimiterKey.GlobalLimiterPolicy.LOCAL_ONLY) {
            SharedLimiterKey modifiedKey = new SharedLimiterKey(configView.getKey().getResourceLimitedPath(), SharedLimiterKey.GlobalLimiterPolicy.LOCAL_ONLY);
            return new ResourceCoordinate<>(this, modifiedKey, (S) configView.getScope());
        }
    } else if (config.hasPath(FAIL_IF_NO_GLOBAL_LIMITER_KEY) && config.getBoolean(FAIL_IF_NO_GLOBAL_LIMITER_KEY) && globalLimiterPolicy != SharedLimiterKey.GlobalLimiterPolicy.USE_GLOBAL) {
        // if user has specified FAIL_IF_NO_GLOBAL_LIMITER_KEY, promote the policy from USE_GLOBAL_IF_CONFIGURED to USE_GLOBAL
        // e.g. fail if no GLOBAL configuration is present
        SharedLimiterKey modifiedKey = new SharedLimiterKey(configView.getKey().getResourceLimitedPath(), SharedLimiterKey.GlobalLimiterPolicy.USE_GLOBAL);
        return new ResourceCoordinate<>(this, modifiedKey, (S) configView.getScope());
    }
    Limiter limiter;
    if (!configView.getScope().isLocal() && !globalLimiterPolicy.equals(SharedLimiterKey.GlobalLimiterPolicy.LOCAL_ONLY)) {
        try {
            Class<?> klazz = Class.forName("org.apache.gobblin.util.limiter.RestliLimiterFactory");
            return new ResourceCoordinate<>((SharedResourceFactory<Limiter, SharedLimiterKey, S>) klazz.newInstance(), configView.getKey(), (S) configView.getScope());
        } catch (ReflectiveOperationException roe) {
            if (globalLimiterPolicy.equals(SharedLimiterKey.GlobalLimiterPolicy.USE_GLOBAL)) {
                throw new RuntimeException("There is no Global limiter factory in the classpath.");
            }
        }
    }
    if (config.hasPath(LIMITER_CLASS_KEY)) {
        try {
            LimiterFactory factory = RESOLVER.resolveClass(config.getString(LIMITER_CLASS_KEY)).newInstance();
            limiter = factory.buildLimiter(config);
        } catch (ReflectiveOperationException roe) {
            throw new RuntimeException(roe);
        }
    } else {
        if (config.hasPath(FAIL_ON_UNKNOWN_RESOURCE_ID) && config.getBoolean(FAIL_ON_UNKNOWN_RESOURCE_ID)) {
            throw new NotConfiguredException();
        }
        limiter = new NoopLimiter();
    }
    ScopeType<S> scope = configView.getScope();
    Collection<S> parentScopes = scope.parentScopes();
    if (parentScopes != null) {
        try {
            for (S parentScope : parentScopes) {
                limiter = new MultiLimiter(limiter, broker.getSharedResourceAtScope(this, configView.getKey(), parentScope));
            }
        } catch (NoSuchScopeException nsse) {
            throw new RuntimeException("Could not get higher scope limiter. This is an error in code.", nsse);
        }
    }
    return new ResourceInstance<>(limiter);
}