de.adorsys.datasafe.storage.api

Class BaseDelegatingStorage

java.lang.Object

de.adorsys.datasafe.storage.api.BaseDelegatingStorage

All Implemented Interfaces:

StorageCheckService, StorageListService, StorageReadService, StorageRemoveService, StorageWriteService, StorageService

Direct Known Subclasses:

RegexDelegatingStorage, SchemeDelegatingStorage, UriBasedAuthStorageService, UserBasedDelegatingStorage

public abstract class BaseDelegatingStorage
extends Object
implements StorageService

This storage delegates real work of reading/writing/listing files to actual storage implementation.

Constructor Summary

Constructors

Constructor and Description
BaseDelegatingStorage()

Method Summary

Modifier and Type	Method and Description
Stream<AbsoluteLocation<ResolvedResource>>	list(AbsoluteLocation location) Lists bucket contents.
boolean	objectExists(AbsoluteLocation location)
InputStream	read(AbsoluteLocation location)
void	remove(AbsoluteLocation location) Removes bucket contents.
protected abstract StorageService	service(AbsoluteLocation location)
OutputStream	write(WithCallback<AbsoluteLocation,? extends ResourceWriteCallback> locationWithCallback)

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.adorsys.datasafe.storage.api.actions.StorageWriteService

flushChunkSize

Constructor Detail

BaseDelegatingStorage

public BaseDelegatingStorage()

Method Detail

objectExists

public boolean objectExists(AbsoluteLocation location)

Specified by:

objectExists in interface StorageCheckService

Parameters:

location - Resource location with credentials (if necessary)

Returns:

Does the resource at location exists

list

public Stream<AbsoluteLocation<ResolvedResource>> list(AbsoluteLocation location)

Description copied from interface: StorageListService

Lists bucket contents.

Specified by:

list in interface StorageListService

Parameters:

location - absolute bucket path with credentials (if necessary) where to list data

Returns:

stream of available absolute bucket paths

read

public InputStream read(AbsoluteLocation location)

Specified by:

read in interface StorageReadService

Parameters:

location - absolute bucket path with credentials (if necessary)

Returns:

data stream of resource to read from

remove

public void remove(AbsoluteLocation location)

Description copied from interface: StorageRemoveService

Removes bucket contents.

Specified by:

remove in interface StorageRemoveService

Parameters:

location - absolute bucket path, with credentials (if necessary), which should be removed

write

public OutputStream write(WithCallback<AbsoluteLocation,? extends ResourceWriteCallback> locationWithCallback)

Specified by:

write in interface StorageWriteService

Parameters:

locationWithCallback - absolute bucket path with credentials (if necessary) plus callbacks to be executed when file is written, i.e. notify callee that we assigned some file version

Returns:

data stream of resource to write to

service

protected abstract StorageService service(AbsoluteLocation location)