com.sap.cds.services.mt.impl.MtDeploymentServiceConfiguration Maven / Gradle / Ivy

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Multi tenancy feature for CDS Services Java
There is a newer version: 3.6.0
/**************************************************************************
 * (C) 2019-2021 SAP SE or an SAP affiliate company. All rights reserved. *
 **************************************************************************/
package com.sap.cds.services.mt.impl;

import java.util.Optional;

import com.sap.cds.feature.mt.MtUtils;
import com.sap.cds.feature.mt.SaasClient;
import com.sap.cds.services.environment.ServiceBinding;
import com.sap.cds.services.mt.ExtensibilityService;
import com.sap.cds.services.mt.MtSubscriptionService;
import com.sap.cds.services.runtime.CdsRuntimeConfiguration;
import com.sap.cds.services.runtime.CdsRuntimeConfigurer;
import com.sap.cds.services.utils.model.DynamicModelUtils;
import com.sap.cloud.mt.subscription.InstanceLifecycleManager;

@SuppressWarnings("deprecation")
public class MtDeploymentServiceConfiguration implements CdsRuntimeConfiguration {

	@Override
	public void services(CdsRuntimeConfigurer configurer) {
		boolean compatibility = configurer.getCdsRuntime().getEnvironment().getCdsProperties().getMultiTenancy().getCompatibility().isEnabled();
		if (new MtUtils(configurer.getCdsRuntime()).requiresSubscription() && compatibility) {
			configurer.service(new MtSubscriptionServiceImpl(MtSubscriptionService.DEFAULT_NAME));
		}
		// isDynamicModelEnabled() doesn't fully guarantee extensibility usage (e.g. might only be feature toggles usage)
		if (new DynamicModelUtils(configurer.getCdsRuntime()).isDynamicModelEnabled()) {
			configurer.service(new ExtensibilityServiceImpl(ExtensibilityService.DEFAULT_NAME));
		}
	}

	@Override
	public void eventHandlers(CdsRuntimeConfigurer configurer) {
		MtUtils mtUtils = new MtUtils(configurer.getCdsRuntime());
		InstanceLifecycleManager ilm = mtUtils.createDefaultInstanceLifecycleManager();

		Optional saasBinding = SaasClient.findBinding(configurer.getCdsRuntime());
		if (saasBinding.isPresent()) {
			configurer.eventHandler(new MtTenantProviderSaasHandler(saasBinding.get()));
		}

		if (ilm != null) {
			// adding this provider as well. SaaS handler is taken with priority based on the handler order
			configurer.eventHandler(new MtTenantProviderHandler(ilm));
		}

		if (mtUtils.requiresSubscription()) {
			boolean compatibility = configurer.getCdsRuntime().getEnvironment().getCdsProperties().getMultiTenancy().getCompatibility().isEnabled();
			if (compatibility) {
				configurer.eventHandler(new MtSubscriptionServiceCompatibilityHandler(ilm, configurer.getCdsRuntime()));
			} else {
				configurer.eventHandler(new MtDeploymentServiceHandler(ilm, configurer.getCdsRuntime()));
			}

			// inform outbox about mt enablement, as persistent outbox is not usable for provider tenant on tenant-aware databases
			configurer.getCdsRuntime().getEnvironment().getCdsProperties().getOutbox().getPersistent().getProviderTenant().setEnabled(false);
		}
	}
}