Package de.iip_ecosphere.platform.deviceMgt.storage

Class StorageFactory

java.lang.Object

de.iip_ecosphere.platform.deviceMgt.storage.StorageFactory

public class StorageFactory
extends Object

A StorageFactory is capable of creating different kinds of storages.

Author:

Dennis Pidun, University of Hildesheim

Field Summary

Fields

Modifier and Type	Field	Description
private Storage	configStorage
private StorageFactoryDescriptor	desc
private static final StorageFactory	INSTANCE
private static final de.iip_ecosphere.platform.support.logging.Logger	LOGGER
private Storage	runtimeStorage
private DeviceMgtSetup	setup

Constructor Summary

Constructors

Constructor	Description
StorageFactory()

Method Summary

Modifier and Type	Method	Description
Storage	createConfigStorage()	Creates a config storage with the help of the service provider.
Storage	createRuntimeStorage()	Creates a runtime storage with the help of the service provider.
Storage	createStorage(PackageStorageSetup setup)	Creates a storage based on the given setup.
static StorageFactory	getInstance()	Returns the instance of this factory.
DeviceMgtSetup	getSetup()	Returns the setup instance.
private void	initDesc()	Initializes the descriptors.
private void	loadSetup()	Loads the setup.
void	setSetup(DeviceMgtSetup configuration)	Sets the configuration, only used in testing.

Methods inherited from class java.lang.Object

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

Field Details

LOGGER

private static final de.iip_ecosphere.platform.support.logging.Logger LOGGER

INSTANCE

private static final StorageFactory INSTANCE

runtimeStorage

private Storage runtimeStorage

configStorage

private Storage configStorage

setup

private DeviceMgtSetup setup

desc

private StorageFactoryDescriptor desc

Constructor Details

StorageFactory

public StorageFactory()

Method Details

getInstance

public static StorageFactory getInstance()

Returns the instance of this factory.

Returns:

the instance

createStorage

public Storage createStorage(PackageStorageSetup setup)

Creates a storage based on the given setup.

Parameters:

setup - the setup

Returns:

the storage instance, may be null if no storage descriptor is available or setup is null

createRuntimeStorage

public Storage createRuntimeStorage()

Creates a runtime storage with the help of the service provider. If no service provider is found, it will fall back to the S3StorageFactoryDescriptor as a default.

Returns:

the runtime storage, may be null if no storage descriptor is available or setup is null

See Also:

• createStorage(PackageStorageSetup)

initDesc

private void initDesc()

Initializes the descriptors.

createConfigStorage

public Storage createConfigStorage()

Creates a config storage with the help of the service provider. If no service provider is found, it will fall back to the S3StorageFactoryDescriptor as a default.

Returns:

the runtime storage, may be null if no storage descriptor is available or setup is null

See Also:

• createStorage(PackageStorageSetup)

loadSetup

private void loadSetup()

Loads the setup.

setSetup

public void setSetup(DeviceMgtSetup configuration)

Sets the configuration, only used in testing. [public for testing]

Parameters:

configuration - the configuration

getSetup

public DeviceMgtSetup getSetup()

Returns the setup instance.

Returns:

the setup instance, null if none was loaded/none is available