Package org.odpi.openmetadata.accessservices.dataengine.server.handlers

Class DataEngineDataFileHandler

java.lang.Object

org.odpi.openmetadata.accessservices.dataengine.server.handlers.DataEngineDataFileHandler

public class DataEngineDataFileHandler
extends Object

DataFileHandler manages DataFile objects from the property server. It runs server-side in the DataEngine OMAS and creates DataFile entities with wire relationships through the OMRSRepositoryConnector.

Constructor Summary

Constructors

Constructor

Description

DataEngineDataFileHandler(InvalidParameterHandler invalidParameterHandler, OMRSRepositoryHelper repositoryHelper, DataEngineCommonHandler dataEngineCommonHandler, AssetHandler<DataFile> fileHandler, DataEngineSchemaTypeHandler dataEngineSchemaTypeHandler, DataEngineFolderHierarchyHandler dataEngineFolderHierarchyHandler, DataEngineConnectionAndEndpointHandler dataEngineConnectionAndEndpointHandler)

Construct the handler information needed to interact with the repository services

Method Summary

Modifier and Type	Method	Description
void	removeDataFile(String userId, String dataFileGUID, String externalSourceName, String externalSourceGUID, DeleteSemantic deleteSemantic)	Remove the data file
String	upsertFileAssetIntoCatalog(String fileTypeName, String fileTypeGuid, DataFile file, SchemaType schemaType, Map<String,Object> extendedProperties, String externalSourceGuid, String externalSourceName, String userId, String methodName)	Constructs a DataFile or CSVFile, its specific TabularSchemaType and its TabularColumns.

Methods inherited from class java.lang.Object

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

Constructor Details

DataEngineDataFileHandler

public DataEngineDataFileHandler(InvalidParameterHandler invalidParameterHandler,
 OMRSRepositoryHelper repositoryHelper,
 DataEngineCommonHandler dataEngineCommonHandler,
 AssetHandler<DataFile> fileHandler,
 DataEngineSchemaTypeHandler dataEngineSchemaTypeHandler,
 DataEngineFolderHierarchyHandler dataEngineFolderHierarchyHandler,
 DataEngineConnectionAndEndpointHandler dataEngineConnectionAndEndpointHandler)

Construct the handler information needed to interact with the repository services

Parameters:

invalidParameterHandler - handler for managing parameter errors

repositoryHelper - provides utilities for manipulating the repository services objects

dataEngineCommonHandler - provides common Data Engine Omas utilities

fileHandler - provides utilities specific for manipulating DataFile and CSVFile

dataEngineSchemaTypeHandler - provides utilities specific for manipulating SchemaType

dataEngineFolderHierarchyHandler - provides utilities specific for manipulating FileFolder

dataEngineConnectionAndEndpointHandler - provides utilities specific for manipulating Connections and Endpoints

Method Details

upsertFileAssetIntoCatalog

public String upsertFileAssetIntoCatalog(String fileTypeName,
 String fileTypeGuid,
 DataFile file,
 SchemaType schemaType,
 Map<String,Object> extendedProperties,
 String externalSourceGuid,
 String externalSourceName,
 String userId,
 String methodName)
                                  throws InvalidParameterException,
PropertyServerException,
UserNotAuthorizedException

Constructs a DataFile or CSVFile, its specific TabularSchemaType and its TabularColumns. It also calls for the creation of its folder structure, the Connection and Endpoint

Parameters:

fileTypeName - file type name

fileTypeGuid - file type guid

file - actual data file

schemaType - file schema

extendedProperties - extended properties

externalSourceGuid - external source guid

externalSourceName - external source name

userId - user id

methodName - method name

Returns:

guid of data file

Throws:

InvalidParameterException - if invalid parameters

PropertyServerException - if errors in repository

UserNotAuthorizedException - if user not authorized

removeDataFile

public void removeDataFile(String userId,
 String dataFileGUID,
 String externalSourceName,
 String externalSourceGUID,
 DeleteSemantic deleteSemantic)
                    throws InvalidParameterException,
PropertyServerException,
UserNotAuthorizedException,
FunctionNotSupportedException

Remove the data file

Parameters:

userId - the name of the calling user

dataFileGUID - unique identifier of the file to be removed

externalSourceName - the external data engine name

externalSourceGUID - the external data engine unique identifier

deleteSemantic - the delete semantic

Throws:

InvalidParameterException - the bean properties are invalid

UserNotAuthorizedException - user not authorized to issue this request

PropertyServerException - problem accessing the property server

FunctionNotSupportedException - the repository does not support this call.