org.odpi.openmetadata.accessservices.datamanager.server

Class FilesRESTServices

java.lang.Object

org.odpi.openmetadata.accessservices.datamanager.server.FilesRESTServices

public class FilesRESTServices
extends Object

FilesRESTServices provides the server-side implementation for managing files and folder assets in a file system. Notice that the integrator identifiers are not specified for the file system because the files can be changed by so many processes. If the files are being controlled by an application then use the ContentManagerRESTServices

Constructor Summary

Constructors

Constructor and Description
FilesRESTServices() Default constructor

Method Summary

Modifier and Type	Method and Description
GUIDListResponse	addDataFileToCatalog(String serverName, String userId, String fileSystemGUID, String fileSystemName, DataFileRequestBody requestBody) Add a simple asset description linked to a connection object for a file and to the folder structure implied in the path name.
GUIDListResponse	addDataFolderAssetToCatalog(String serverName, String userId, String fileSystemGUID, String fileSystemName, DataFolderRequestBody requestBody) Creates a new folder asset that is identified as a data asset.
VoidResponse	attachDataFileAssetToFolder(String serverName, String userId, String folderGUID, String fileGUID, MetadataSourceRequestBody requestBody) Link an existing file asset to a folder.
VoidResponse	attachFolderToFileSystem(String serverName, String userId, String fileSystemGUID, String folderGUID, MetadataSourceRequestBody requestBody) Links a folder to a file system.
GUIDListResponse	createFolderStructureInCatalog(String serverName, String userId, String parentGUID, PathNameRequestBody requestBody) Creates a new folder asset for each element in the pathName that is linked from the parent entity.
GUIDListResponse	createFolderStructureInCatalog(String serverName, String userId, String fileSystemGUID, String fileSystemName, PathNameRequestBody requestBody) Creates a new folder asset for each element in the pathName.
VoidResponse	detachDataFileAssetFromFolder(String serverName, String userId, String folderGUID, String fileGUID, MetadataSourceRequestBody requestBody) Remove a link between a file asset and a folder.
VoidResponse	detachFolderFromFileSystem(String serverName, String userId, String fileSystemGUID, String folderGUID, MetadataSourceRequestBody requestBody) Removed the link between a folder and a file system.
DataFileResponse	getDataFileByGUID(String serverName, String userId, String fileGUID) Retrieve a data file asset by its unique identifier (GUID).
DataFileResponse	getDataFileByPathName(String serverName, String userId, PathNameRequestBody requestBody) Retrieve a data file asset by its fully qualified path name.
FileSystemResponse	getFileSystemByGUID(String serverName, String userId, String fileSystemGUID) Retrieve a FileSystemProperties asset by its unique identifier (GUID).
FileSystemResponse	getFileSystemByUniqueName(String serverName, String userId, String uniqueName) Retrieve a FileSystemProperties asset by its unique name.
GUIDListResponse	getFileSystems(String serverName, String userId, int startingFrom, int maxPageSize) Retrieve a list of defined FileSystems assets.
FileFolderResponse	getFolderByGUID(String serverName, String userId, String folderGUID) Retrieve a FileFolderProperties asset by its unique identifier (GUID).
FileFolderResponse	getFolderByPathName(String serverName, String userId, PathNameRequestBody requestBody) Retrieve a folder by its fully qualified path name.
GUIDListResponse	getFolderFiles(String serverName, String userId, String folderGUID, int startingFrom, int maxPageSize) Get the files inside a folder - both those that are nested and those that are linked.
GUIDListResponse	getNestedFolders(String serverName, String userId, String parentFolderGUID, int startingFrom, int maxPageSize) Return the list of folders nested inside a folder.
VoidResponse	moveDataFileInCatalog(String serverName, String userId, String folderGUID, String fileGUID, MetadataSourceRequestBody requestBody) Move a data file from its current parent folder to a new parent folder - this changes the file's qualified name but not its unique identifier (guid).
VoidResponse	moveDataFolderInCatalog(String serverName, String userId, String newParentFolderGUID, String movingFolderGUID, MetadataSourceRequestBody requestBody) Move a data folder from its current parent folder to a new parent folder - this changes the folder's qualified name but not its unique identifier (guid).

Methods inherited from class java.lang.Object

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

Constructor Detail

FilesRESTServices

public FilesRESTServices()

Default constructor

Method Detail

createFolderStructureInCatalog

public GUIDListResponse createFolderStructureInCatalog(String serverName,
                                                       String userId,
                                                       String parentGUID,
                                                       PathNameRequestBody requestBody)

Creates a new folder asset for each element in the pathName that is linked from the parent entity. For example, a pathName of "one/two/three" creates 3 new folder assets, one called "one", the next called "one/two" and the last one called "one/two/three".

Parameters:

serverName - name of calling server

userId - calling user

parentGUID - root object to connect the folder to

requestBody - pathname of the folder (or folders)

Returns:

list of GUIDs from the top level to the leaf of the supplied pathname or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

createFolderStructureInCatalog

public GUIDListResponse createFolderStructureInCatalog(String serverName,
                                                       String userId,
                                                       String fileSystemGUID,
                                                       String fileSystemName,
                                                       PathNameRequestBody requestBody)

Creates a new folder asset for each element in the pathName. For example, a pathName of "one/two/three" creates 3 new folder assets, one called "one", the next called "one/two" and the last one called "one/two/three".

Parameters:

serverName - name of calling server

userId - calling user

fileSystemGUID - unique identifier of the software server capability that represents the root of the path name

fileSystemName - unique name of the software server capability that represents the root of the path name

requestBody - pathname of the folder (or folders)

Returns:

list of GUIDs from the top level to the leaf of the supplied pathname or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

attachFolderToFileSystem

public VoidResponse attachFolderToFileSystem(String serverName,
                                             String userId,
                                             String fileSystemGUID,
                                             String folderGUID,
                                             MetadataSourceRequestBody requestBody)

Links a folder to a file system. The folder is not changed.

Parameters:

serverName - name of calling server

userId - calling user

fileSystemGUID - unique identifier of the file system in the catalog

folderGUID - unique identifier of the folder in the catalog

requestBody - external source identifiers - or null for local

Returns:

void or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

detachFolderFromFileSystem

public VoidResponse detachFolderFromFileSystem(String serverName,
                                               String userId,
                                               String fileSystemGUID,
                                               String folderGUID,
                                               MetadataSourceRequestBody requestBody)

Removed the link between a folder and a file system.

Parameters:

serverName - name of calling server

userId - calling user

fileSystemGUID - unique identifier of the file system in the catalog

folderGUID - unique identifier of the folder in the catalog

requestBody - external source identifiers - or null for local

Returns:

void or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

addDataFileToCatalog

public GUIDListResponse addDataFileToCatalog(String serverName,
                                             String userId,
                                             String fileSystemGUID,
                                             String fileSystemName,
                                             DataFileRequestBody requestBody)

Add a simple asset description linked to a connection object for a file and to the folder structure implied in the path name. If the folder structure is not catalogued already, this is created automatically using the createFolderStructureInCatalog() method. For example, a pathName of "one/two/three/MyFile.txt" potentially creates 3 new folder assets, one called "one", the next called "one/two" and the last one called "one/two/three" plus a file asset called "one/two/three/MyFile.txt".

Parameters:

serverName - name of calling server

userId - calling user (assumed to be the owner)

fileSystemGUID - unique identifier of the software server capability that represents the root of the path name - null to use pathname

fileSystemName - unique name of the software server capability that represents the root of the path name - null to use pathname

requestBody - properties for the asset

Returns:

list of GUIDs from the top level to the root of the pathname or InvalidParameterException full path or userId is null PropertyServerException problem accessing property server UserNotAuthorizedException security access problem

addDataFolderAssetToCatalog

public GUIDListResponse addDataFolderAssetToCatalog(String serverName,
                                                    String userId,
                                                    String fileSystemGUID,
                                                    String fileSystemName,
                                                    DataFolderRequestBody requestBody)

Creates a new folder asset that is identified as a data asset. This means the files and sub-folders within it collectively make up the contents of the data asset. As with other types of file-based asset, links are made to the folder structure implied in the path name. If the folder structure is not catalogued already, this is created automatically using the createFolderStructureInCatalog() method. For example, a pathName of "one/two/three/MyDataFolder" potentially creates 3 new folder assets, one called "one", the next called "one/two" and the last one called "one/two/three" plus a DataFolder asset called "one/two/three/MyDataFolder".

Parameters:

serverName - name of calling server

userId - calling user

fileSystemGUID - unique identifier of the software server capability that represents the root of the path name - null to use pathname

fileSystemName - unique name of the software server capability that represents the root of the path name - null to use pathname

requestBody - pathname of the file

Returns:

list of GUIDs from the top level to the root of the pathname or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

attachDataFileAssetToFolder

public VoidResponse attachDataFileAssetToFolder(String serverName,
                                                String userId,
                                                String folderGUID,
                                                String fileGUID,
                                                MetadataSourceRequestBody requestBody)

Link an existing file asset to a folder. The file is not changed as this is used to create a logical link to the folder.

Parameters:

serverName - name of calling server

userId - calling user

folderGUID - unique identifier of the folder

fileGUID - unique identifier of the file

requestBody - external source identifiers - or null for local

Returns:

void or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

detachDataFileAssetFromFolder

public VoidResponse detachDataFileAssetFromFolder(String serverName,
                                                  String userId,
                                                  String folderGUID,
                                                  String fileGUID,
                                                  MetadataSourceRequestBody requestBody)

Remove a link between a file asset and a folder. The file is not changed. Use moveDataFileInCatalog to record the fact that the physical file has moved. Use attachDataFileAssetToFolder to create logical link to a new folder.

Parameters:

serverName - name of calling server

userId - calling user

folderGUID - unique identifier of the folder

fileGUID - unique identifier of the file

requestBody - external source identifiers - or null for local

Returns:

void or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

moveDataFileInCatalog

public VoidResponse moveDataFileInCatalog(String serverName,
                                          String userId,
                                          String folderGUID,
                                          String fileGUID,
                                          MetadataSourceRequestBody requestBody)

Move a data file from its current parent folder to a new parent folder - this changes the file's qualified name but not its unique identifier (guid). Also the the endpoint in the connection object.

Parameters:

serverName - name of calling server

userId - calling user

folderGUID - new parent folder

fileGUID - unique identifier of the file to move

requestBody - request body

Returns:

void or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

moveDataFolderInCatalog

public VoidResponse moveDataFolderInCatalog(String serverName,
                                            String userId,
                                            String newParentFolderGUID,
                                            String movingFolderGUID,
                                            MetadataSourceRequestBody requestBody)

Move a data folder from its current parent folder to a new parent folder - this changes the folder's qualified name but not its unique identifier (guid). Also the the endpoint in the connection object.

Parameters:

serverName - name of calling server

userId - calling user

newParentFolderGUID - new parent folder

movingFolderGUID - unique identifier of the file to move

requestBody - external source identifiers - or null for local

Returns:

void or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

getFileSystemByGUID

public FileSystemResponse getFileSystemByGUID(String serverName,
                                              String userId,
                                              String fileSystemGUID)

Retrieve a FileSystemProperties asset by its unique identifier (GUID).

Parameters:

serverName - name of calling server

userId - calling user

fileSystemGUID - unique identifier used to locate the file system

Returns:

FileSystemProperties properties or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

getFileSystemByUniqueName

public FileSystemResponse getFileSystemByUniqueName(String serverName,
                                                    String userId,
                                                    String uniqueName)

Retrieve a FileSystemProperties asset by its unique name.

Parameters:

serverName - name of calling server

userId - calling user

uniqueName - unique name used to locate the file system

Returns:

Filesystem properties or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

getFileSystems

public GUIDListResponse getFileSystems(String serverName,
                                       String userId,
                                       int startingFrom,
                                       int maxPageSize)

Retrieve a list of defined FileSystems assets.

Parameters:

serverName - name of calling server

userId - calling user

startingFrom - starting point in the list

maxPageSize - maximum number of results

Returns:

List of Filesystem unique identifiers or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

getFolderByGUID

public FileFolderResponse getFolderByGUID(String serverName,
                                          String userId,
                                          String folderGUID)

Retrieve a FileFolderProperties asset by its unique identifier (GUID).

Parameters:

serverName - name of calling server

userId - calling user

folderGUID - unique identifier used to locate the folder

Returns:

FileFolderProperties properties or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

getFolderByPathName

public FileFolderResponse getFolderByPathName(String serverName,
                                              String userId,
                                              PathNameRequestBody requestBody)

Retrieve a folder by its fully qualified path name.

Parameters:

serverName - name of calling server

userId - calling user

requestBody - path name

Returns:

FileFolderProperties properties or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

getNestedFolders

public GUIDListResponse getNestedFolders(String serverName,
                                         String userId,
                                         String parentFolderGUID,
                                         int startingFrom,
                                         int maxPageSize)

Return the list of folders nested inside a folder.

Parameters:

serverName - name of calling server

userId - calling user

parentFolderGUID - unique identifier of the folder or Filesystem to query

startingFrom - starting point in the list

maxPageSize - maximum number of results

Returns:

list of folder unique identifiers (null means no nested folders) or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

getFolderFiles

public GUIDListResponse getFolderFiles(String serverName,
                                       String userId,
                                       String folderGUID,
                                       int startingFrom,
                                       int maxPageSize)

Get the files inside a folder - both those that are nested and those that are linked.

Parameters:

serverName - name of calling server

userId - calling user

folderGUID - unique identifier of the folder to query

startingFrom - starting point in the list

maxPageSize - maximum number of results

Returns:

list of file asset unique identifiers or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

getDataFileByGUID

public DataFileResponse getDataFileByGUID(String serverName,
                                          String userId,
                                          String fileGUID)

Retrieve a data file asset by its unique identifier (GUID).

Parameters:

serverName - name of calling server

userId - calling user

fileGUID - unique identifier used to locate the file

Returns:

data file properties or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.

getDataFileByPathName

public DataFileResponse getDataFileByPathName(String serverName,
                                              String userId,
                                              PathNameRequestBody requestBody)

Retrieve a data file asset by its fully qualified path name.

Parameters:

serverName - name of calling server

userId - calling user

requestBody - path name

Returns:

data file properties or InvalidParameterException one of the parameters is null or invalid or PropertyServerException problem accessing property server or UserNotAuthorizedException security access problem.