public class UploadFilesRequest extends Object implements org.apache.avro.generic.IndexedRecord
GPUdb.uploadFiles(UploadFilesRequest)
.
Uploads one or more files to KiFS. There are two methods for uploading files: load files in their entirety, or load files in parts. The latter is recommeded for files of approximately 60 MB or larger.
To upload files in their entirety, populate fileNames
with the file
names to upload into on KiFS, and their respective byte content in
fileData
.
Multiple steps are involved when uploading in multiple parts. Only one file at a time can be uploaded in this manner. A user-provided UUID is utilized to tie all the upload steps together for a given file. To upload a file in multiple parts:
1. Provide the file name in fileNames
, the UUID in
the multipart_upload_uuid
key in options
, and
a multipart_operation
value of
init
.
2. Upload one or more parts by providing the file name, the part data
in fileData
, the UUID, a multipart_operation
value of upload_part
, and
the part number in the multipart_upload_part_number
.
The part numbers must start at 1 and increase incrementally.
Parts may not be uploaded out of order.
3. Complete the upload by providing the file name, the UUID, and a
multipart_operation
value of
complete
.
Multipart uploads in progress may be canceled by providing the file name,
the
UUID, and a multipart_operation
value of
cancel
. If an new upload is
initialized with a different UUID for an existing upload in progress, the
pre-existing upload is automatically canceled in favor of the new upload.
The multipart upload must be completed for the file to be usable in KiFS.
Information about multipart uploads in progress is available in
GPUdb.showFiles(ShowFilesRequest)
.
File data may be pre-encoded using base64 encoding. This should be indicated
using the file_encoding
option, and is recommended when
using JSON serialization.
Each file path must reside in a top-level KiFS directory, i.e. one of the
directories listed in GPUdb.showDirectories(ShowDirectoriesRequest)
. The user must have
write
permission on the directory. Nested directories are permitted in file name
paths. Directories are deliniated with the directory separator of '/'. For
example, given the file path '/a/b/c/d.txt', 'a' must be a KiFS directory.
These characters are allowed in file name paths: letters, numbers, spaces, the path delimiter of '/', and the characters: '.' '-' ':' '[' ']' '(' ')' '#' '='.
Modifier and Type | Class and Description |
---|---|
static class |
UploadFilesRequest.Options
Optional parameters.
|
Constructor and Description |
---|
UploadFilesRequest()
Constructs an UploadFilesRequest object with default parameters.
|
UploadFilesRequest(List<String> fileNames,
List<ByteBuffer> fileData,
Map<String,String> options)
Constructs an UploadFilesRequest object with the specified parameters.
|
Modifier and Type | Method and Description |
---|---|
boolean |
equals(Object obj) |
Object |
get(int index)
This method supports the Avro framework and is not intended to be called
directly by the user.
|
static org.apache.avro.Schema |
getClassSchema()
This method supports the Avro framework and is not intended to be called
directly by the user.
|
List<ByteBuffer> |
getFileData() |
List<String> |
getFileNames() |
Map<String,String> |
getOptions() |
org.apache.avro.Schema |
getSchema()
This method supports the Avro framework and is not intended to be called
directly by the user.
|
int |
hashCode() |
void |
put(int index,
Object value)
This method supports the Avro framework and is not intended to be called
directly by the user.
|
UploadFilesRequest |
setFileData(List<ByteBuffer> fileData) |
UploadFilesRequest |
setFileNames(List<String> fileNames) |
UploadFilesRequest |
setOptions(Map<String,String> options) |
String |
toString() |
public UploadFilesRequest()
public UploadFilesRequest(List<String> fileNames, List<ByteBuffer> fileData, Map<String,String> options)
fileNames
- An array of full file name paths to be used for the
files
uploaded to KiFS. File names may have any number of
nested directories in their
paths, but the top-level directory must be an existing
KiFS directory. Each file
must reside in or under a top-level directory. A full
file name path cannot be
larger than 1024 characters.fileData
- File data for the files being uploaded, for the
respective files in fileNames
.options
- Optional parameters.
FILE_ENCODING
: Encoding that has been applied to the
uploaded
file data. When using JSON serialization it is
recommended to utilize
base64
. The caller is responsible
for encoding the data provided in this payload
Supported values:
BASE64
: Specifies that the file data being uploaded has
been base64 encoded.
NONE
: The uploaded file data has not been encoded.
NONE
.
MULTIPART_OPERATION
: Multipart upload operation to
perform
Supported values:
NONE
: Default, indicates this is not a multipart upload
INIT
: Initialize a multipart file upload
UPLOAD_PART
: Uploads a part of the specified multipart
file upload
COMPLETE
: Complete the specified multipart file upload
CANCEL
: Cancel the specified multipart file upload
NONE
.
MULTIPART_UPLOAD_UUID
: UUID to uniquely identify a
multipart upload
MULTIPART_UPLOAD_PART_NUMBER
: Incremental part number
for each part in a
multipart upload. Part numbers start at 1, increment by
1, and must be uploaded
sequentially
DELETE_IF_EXISTS
: If true
,
any existing files specified in fileNames
will
be deleted prior to start of upload.
Otherwise the file is replaced once the upload
completes. Rollback of the original file is
no longer possible if the upload is cancelled, aborted
or fails if the file was deleted beforehand.
Supported values:
The default value is FALSE
.
Map
.public static org.apache.avro.Schema getClassSchema()
public List<String> getFileNames()
public UploadFilesRequest setFileNames(List<String> fileNames)
fileNames
- An array of full file name paths to be used for the
files
uploaded to KiFS. File names may have any number of
nested directories in their
paths, but the top-level directory must be an existing
KiFS directory. Each file
must reside in or under a top-level directory. A full
file name path cannot be
larger than 1024 characters.this
to mimic the builder pattern.public List<ByteBuffer> getFileData()
fileNames
.public UploadFilesRequest setFileData(List<ByteBuffer> fileData)
fileData
- File data for the files being uploaded, for the
respective files in fileNames
.this
to mimic the builder pattern.public Map<String,String> getOptions()
FILE_ENCODING
: Encoding that has been applied to the uploaded
file data. When using JSON serialization it is recommended to
utilize
base64
. The caller is responsible
for encoding the data provided in this payload
Supported values:
BASE64
:
Specifies that the file data being uploaded has been base64
encoded.
NONE
: The
uploaded file data has not been encoded.
NONE
.
MULTIPART_OPERATION
: Multipart upload operation to perform
Supported values:
NONE
:
Default, indicates this is not a multipart upload
INIT
:
Initialize a multipart file upload
UPLOAD_PART
: Uploads a part of the specified multipart file
upload
COMPLETE
: Complete the specified multipart file upload
CANCEL
:
Cancel the specified multipart file upload
NONE
.
MULTIPART_UPLOAD_UUID
: UUID to uniquely identify a multipart
upload
MULTIPART_UPLOAD_PART_NUMBER
: Incremental part number for each
part in a
multipart upload. Part numbers start at 1, increment by 1, and
must be uploaded
sequentially
DELETE_IF_EXISTS
: If true
,
any existing files specified in fileNames
will be
deleted prior to start of upload.
Otherwise the file is replaced once the upload completes.
Rollback of the original file is
no longer possible if the upload is cancelled, aborted or fails
if the file was deleted beforehand.
Supported values:
The default value is FALSE
.
Map
.public UploadFilesRequest setOptions(Map<String,String> options)
options
- Optional parameters.
FILE_ENCODING
: Encoding that has been applied to the
uploaded
file data. When using JSON serialization it is
recommended to utilize
base64
. The caller is responsible
for encoding the data provided in this payload
Supported values:
BASE64
: Specifies that the file data being uploaded has
been base64 encoded.
NONE
: The uploaded file data has not been encoded.
NONE
.
MULTIPART_OPERATION
: Multipart upload operation to
perform
Supported values:
NONE
: Default, indicates this is not a multipart upload
INIT
: Initialize a multipart file upload
UPLOAD_PART
: Uploads a part of the specified multipart
file upload
COMPLETE
: Complete the specified multipart file upload
CANCEL
: Cancel the specified multipart file upload
NONE
.
MULTIPART_UPLOAD_UUID
: UUID to uniquely identify a
multipart upload
MULTIPART_UPLOAD_PART_NUMBER
: Incremental part number
for each part in a
multipart upload. Part numbers start at 1, increment by
1, and must be uploaded
sequentially
DELETE_IF_EXISTS
: If true
,
any existing files specified in fileNames
will
be deleted prior to start of upload.
Otherwise the file is replaced once the upload
completes. Rollback of the original file is
no longer possible if the upload is cancelled, aborted
or fails if the file was deleted beforehand.
Supported values:
The default value is FALSE
.
Map
.this
to mimic the builder pattern.public org.apache.avro.Schema getSchema()
getSchema
in interface org.apache.avro.generic.GenericContainer
public Object get(int index)
get
in interface org.apache.avro.generic.IndexedRecord
index
- the position of the field to getIndexOutOfBoundsException
public void put(int index, Object value)
put
in interface org.apache.avro.generic.IndexedRecord
index
- the position of the field to setvalue
- the value to setIndexOutOfBoundsException
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