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, RepositoryHandler repositoryHandler, DataEngineCommonHandler dataEngineCommonHandler, AssetHandler<DataFile> fileHandler, DataEngineSchemaTypeHandler dataEngineSchemaTypeHandler, DataEngineFolderHierarchyHandler dataEngineFolderHierarchyHandler, DataEngineConnectionAndEndpointHandler dataEngineConnectionAndEndpointHandler)`	Construct the handler information needed to interact with the repository services

Method Summary

All Methods Instance Methods Concrete Methods
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, boolean incomplete, 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 Detail

DataEngineDataFileHandler

public DataEngineDataFileHandler(InvalidParameterHandler invalidParameterHandler,
                                 OMRSRepositoryHelper repositoryHelper,
                                 RepositoryHandler repositoryHandler,
                                 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; repositoryHandler - manages calls to the repository services; 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 Detail

upsertFileAssetIntoCatalog

public String upsertFileAssetIntoCatalog(String fileTypeName,
                                         String fileTypeGuid,
                                         DataFile file,
                                         boolean incomplete,
                                         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.

Class DataEngineDataFileHandler