Package com.sap.cds.feature.mt.lib.subscription

Class InstanceLifecycleManagerSqLite

java.lang.Object

com.sap.cds.feature.mt.lib.subscription.InstanceLifecycleManagerSqLite

All Implemented Interfaces:

InstanceLifecycleManager

public class InstanceLifecycleManagerSqLite
extends Object
implements InstanceLifecycleManager

This implementation of InstanceLifecycleManager intended for multi tenancy based on SQLite database files. It should not be used in production.

Nested Class Summary

Nested classes/interfaces inherited from interface com.sap.cds.feature.mt.lib.subscription.InstanceLifecycleManager

InstanceLifecycleManager.ContainerStatus

Field Summary

Fields inherited from interface com.sap.cds.feature.mt.lib.subscription.InstanceLifecycleManager

DATABASE_ID

Constructor Summary

Constructors

Constructor	Description
InstanceLifecycleManagerSqLite(SqLiteFileResolver sqliteFileResolver)
InstanceLifecycleManagerSqLite(Path root)

Method Summary

Modifier and Type	Method	Description
void	checkThatTenantExists(String tenant)	Checks if a schema has been created for a tenant
List<DataSourceInfo>	createAndGetLibContainers(DataSourceInfo dataSourceInfo)	Creates on the database used by the given datasource a hdi container/schema reserved of the library itself.
void	createNewInstance(String tenant, ProvisioningParameters provisioningParameters, BindingParameters bindingParameters)
void	deleteInstance(String tenant)
Map<String,TenantMetadata>	getAllTenantInfos(boolean forceCacheUpdate)	Returns all tenants that have a DB container/schema.
InstanceLifecycleManager.ContainerStatus	getContainerStatus(String tenant)
DataSourceInfo	getDataSourceInfo(String tenant, boolean forceCacheUpdate)
DbIdentifiers.DB	getDbType()
List<DataSourceInfo>	getLibContainers()
boolean	hasCredentials(String tenantId, boolean forceCacheUpdate)	Checks if the tenant has credentials for the schema.
void	insertDbIdentifiers(DbIdentifiers dbIdentifiers)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.sap.cds.feature.mt.lib.subscription.InstanceLifecycleManager

createProvisioningParameters, getAllTenants, getMtLibContainerName

Constructor Details

InstanceLifecycleManagerSqLite

public InstanceLifecycleManagerSqLite(Path root)

InstanceLifecycleManagerSqLite

public InstanceLifecycleManagerSqLite(SqLiteFileResolver sqliteFileResolver)

Method Details

createNewInstance

public void createNewInstance(String tenant,
 ProvisioningParameters provisioningParameters,
 BindingParameters bindingParameters)

Specified by:

createNewInstance in interface InstanceLifecycleManager

deleteInstance

public void deleteInstance(String tenant)

Specified by:

deleteInstance in interface InstanceLifecycleManager

getDataSourceInfo

public DataSourceInfo getDataSourceInfo(String tenant,
 boolean forceCacheUpdate)
                                 throws UnknownTenant

Specified by:

getDataSourceInfo in interface InstanceLifecycleManager

Throws:

UnknownTenant

getContainerStatus

public InstanceLifecycleManager.ContainerStatus getContainerStatus(String tenant)

Specified by:

getContainerStatus in interface InstanceLifecycleManager

hasCredentials

public boolean hasCredentials(String tenantId,
 boolean forceCacheUpdate)
                       throws InternalError

Description copied from interface: InstanceLifecycleManager

Checks if the tenant has credentials for the schema.

Specified by:

hasCredentials in interface InstanceLifecycleManager

Parameters:

tenantId - identifier of tenant that is checked

forceCacheUpdate - If set, the current tenant is re-determined.

Returns:

true if credentials are available

Throws:

InternalError - is thrown if a problem occurs, if for example service manager cannot be accessed

getAllTenantInfos

public Map<String,TenantMetadata> getAllTenantInfos(boolean forceCacheUpdate)

Description copied from interface: InstanceLifecycleManager

Returns all tenants that have a DB container/schema. In contrast to InstanceLifecycleManager.getAllTenants(boolean) this method provides additional tenant properties like database_id if available.

Specified by:

getAllTenantInfos in interface InstanceLifecycleManager

Parameters:

forceCacheUpdate - If set, the current list of tenants is re-determined.

Returns:

A map with all TenantMetadata. Tenant id is used as key.

checkThatTenantExists

public void checkThatTenantExists(String tenant)
                           throws UnknownTenant

Description copied from interface: InstanceLifecycleManager

Checks if a schema has been created for a tenant

Specified by:

checkThatTenantExists in interface InstanceLifecycleManager

Parameters:

tenant - identifier of tenant that is checked

Throws:

UnknownTenant - is thrown if tenant doesn't exist

createAndGetLibContainers

public List<DataSourceInfo> createAndGetLibContainers(DataSourceInfo dataSourceInfo)

Description copied from interface: InstanceLifecycleManager

Creates on the database used by the given datasource a hdi container/schema reserved of the library itself. If the parameter is null or the database cannot be determined, the missing containers are created on all databases. When used with Hana a service instance is created for tenant MT_LIB_TENANT-"database id" No error is thrown if container creation failed !

Specified by:

createAndGetLibContainers in interface InstanceLifecycleManager

Parameters:

dataSourceInfo - Credentials of dataSource for which lib container is created

Returns:

Info for lib container

getLibContainers

public List<DataSourceInfo> getLibContainers()

Specified by:

getLibContainers in interface InstanceLifecycleManager

Returns:

the credentials of mt-libs's own containers/schemas. In case of HANA, the list is based on the current state of the instance manager client libs cache.

insertDbIdentifiers

public void insertDbIdentifiers(DbIdentifiers dbIdentifiers)

Specified by:

insertDbIdentifiers in interface InstanceLifecycleManager

getDbType

public DbIdentifiers.DB getDbType()

Specified by:

getDbType in interface InstanceLifecycleManager