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

Class InstanceLifecycleManagerImpl

java.lang.Object

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

All Implemented Interfaces:

InstanceLifecycleManager

public class InstanceLifecycleManagerImpl
extends Object
implements InstanceLifecycleManager

Nested Class Summary

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

InstanceLifecycleManager.ContainerStatus

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CREATION_SUCCEEDED

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

DATABASE_ID

Method Summary

Modifier and Type	Method	Description
void	checkThatTenantExists(String tenantId)	Checks if a schema has been created for a tenant
void	clearCache()
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 tenantId, ProvisioningParameters instanceParameters, BindingParameters bindingParameters)
void	deleteInstance(String tenantId)
Map<String,TenantMetadata>	getAllTenantInfos(boolean forceCacheUpdate)	Returns all tenants that have a DB container/schema.
InstanceLifecycleManager.ContainerStatus	getContainerStatus(String tenantId)
DataSourceInfo	getDataSourceInfo(String tenantId, boolean forceCacheUpdate)
protected DataSourceInfo	getDataSourceInfoInternal(String tenantId, boolean forceCacheUpdate)
DbIdentifiers.DB	getDbType()
List<DataSourceInfo>	getLibContainers()
boolean	hasCredentials(String tenantId, boolean forceCacheUpdate)	Checks if the tenant has credentials for the schema.
boolean	hasDbIdentifiers()
void	insertDbIdentifiers(DbIdentifiers dbIdentifiers)
boolean	knowsDbCredentials()
static void	setBlockRefresh(BooleanSupplier blockRefresh)

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

Field Details

CREATION_SUCCEEDED

public static final String CREATION_SUCCEEDED

See Also:

• Constant Field Values

Method Details

createNewInstance

public void createNewInstance(String tenantId,
 ProvisioningParameters instanceParameters,
 BindingParameters bindingParameters)
                       throws InternalError

Specified by:

createNewInstance in interface InstanceLifecycleManager

Throws:

InternalError

deleteInstance

public void deleteInstance(String tenantId)
                    throws InternalError

Specified by:

deleteInstance in interface InstanceLifecycleManager

Throws:

InternalError

getDataSourceInfo

public DataSourceInfo getDataSourceInfo(String tenantId,
 boolean forceCacheUpdate)
                                 throws InternalError,
UnknownTenant

Specified by:

getDataSourceInfo in interface InstanceLifecycleManager

Throws:

InternalError

UnknownTenant

getDataSourceInfoInternal

protected DataSourceInfo getDataSourceInfoInternal(String tenantId,
 boolean forceCacheUpdate)
                                            throws InternalError,
UnknownTenant

Throws:

InternalError

UnknownTenant

getContainerStatus

public InstanceLifecycleManager.ContainerStatus getContainerStatus(String tenantId)
                                                            throws InternalError

Specified by:

getContainerStatus in interface InstanceLifecycleManager

Throws:

InternalError

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)
                                             throws InternalError

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.

Throws:

InternalError

checkThatTenantExists

public void checkThatTenantExists(String tenantId)
                           throws UnknownTenant,
InternalError

Description copied from interface: InstanceLifecycleManager

Checks if a schema has been created for a tenant

Specified by:

checkThatTenantExists in interface InstanceLifecycleManager

Parameters:

tenantId - identifier of tenant that is checked

Throws:

UnknownTenant - is thrown if tenant doesn't exist

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

createAndGetLibContainers

public List<DataSourceInfo> createAndGetLibContainers(DataSourceInfo dataSourceInfo)
                                               throws InternalError

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

Throws:

InternalError - is thrown when a communication problems arises

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.

clearCache

public void clearCache()

hasDbIdentifiers

public boolean hasDbIdentifiers()

Specified by:

hasDbIdentifiers in interface InstanceLifecycleManager

insertDbIdentifiers

public void insertDbIdentifiers(DbIdentifiers dbIdentifiers)

Specified by:

insertDbIdentifiers in interface InstanceLifecycleManager

getDbType

public DbIdentifiers.DB getDbType()

Specified by:

getDbType in interface InstanceLifecycleManager

knowsDbCredentials

public boolean knowsDbCredentials()

Specified by:

knowsDbCredentials in interface InstanceLifecycleManager

setBlockRefresh

public static void setBlockRefresh(BooleanSupplier blockRefresh)

Parameters:

blockRefresh - lambda expression that is called before each refresh to decide if a refresh shall be executed. Needed for unit tests to enable refresh in a controlled way.