Apache ORC Files API
The Files API from Apache ORC — 4 operation(s) for files.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Apache ORC Tools Conversion Files API
description: Apache ORC is a self-describing, type-aware columnar file format for Hadoop workloads. This API represents the ORC tools REST service for reading, writing, and analyzing ORC files with support for predicate pushdown, compression, and schema evolution.
version: 2.0.0
license:
name: Apache 2.0
url: https://www.apache.org/licenses/LICENSE-2.0
contact:
url: https://orc.apache.org/
servers:
- url: https://{host}/orc
description: Apache ORC REST service
variables:
host:
default: localhost:8080
tags:
- name: Files
paths:
/files:
get:
operationId: listFiles
summary: Apache ORC List ORC Files
description: List ORC files available in the configured directory.
tags:
- Files
responses:
'200':
description: List of ORC files
content:
application/json:
schema:
$ref: '#/components/schemas/FileList'
x-microcks-operation:
delay: 0
dispatcher: FALLBACK
/files/{filePath}/schema:
get:
operationId: getFileSchema
summary: Apache ORC Get File Schema
description: Get the schema of an ORC file including column names, types, and statistics.
tags:
- Files
parameters:
- name: filePath
in: path
required: true
schema:
type: string
description: Path to the ORC file
example: data/sales.orc
responses:
'200':
description: ORC file schema
content:
application/json:
schema:
$ref: '#/components/schemas/OrcSchema'
x-microcks-operation:
delay: 0
dispatcher: FALLBACK
/files/{filePath}/metadata:
get:
operationId: getFileMetadata
summary: Apache ORC Get File Metadata
description: Get metadata about an ORC file including stripes, row count, and compression info.
tags:
- Files
parameters:
- name: filePath
in: path
required: true
schema:
type: string
description: Path to the ORC file
responses:
'200':
description: ORC file metadata
content:
application/json:
schema:
$ref: '#/components/schemas/FileMetadata'
x-microcks-operation:
delay: 0
dispatcher: FALLBACK
/files/{filePath}/statistics:
get:
operationId: getColumnStatistics
summary: Apache ORC Get Column Statistics
description: Get per-column statistics from an ORC file including min, max, sum, and null counts.
tags:
- Files
parameters:
- name: filePath
in: path
required: true
schema:
type: string
responses:
'200':
description: Column statistics
content:
application/json:
schema:
$ref: '#/components/schemas/ColumnStatisticsResponse'
x-microcks-operation:
delay: 0
dispatcher: FALLBACK
components:
schemas:
StripeInfo:
type: object
properties:
stripeIndex:
type: integer
example: 0
offset:
type: integer
example: 3
length:
type: integer
example: 1048576
rowCount:
type: integer
example: 100000
FileList:
type: object
properties:
files:
type: array
items:
$ref: '#/components/schemas/FileInfo'
OrcSchema:
type: object
properties:
typeName:
type: string
description: Top-level type name
example: struct
columns:
type: array
items:
$ref: '#/components/schemas/ColumnType'
ColumnStatisticsResponse:
type: object
properties:
filePath:
type: string
example: data/sales.orc
statistics:
type: array
items:
$ref: '#/components/schemas/ColumnStatistics'
ColumnType:
type: object
properties:
name:
type: string
description: Column name
example: customer_id
type:
type: string
description: ORC type
example: int
enum:
- boolean
- tinyint
- smallint
- int
- bigint
- float
- double
- string
- binary
- timestamp
- date
- decimal
- varchar
- char
- list
- map
- struct
- union
nullable:
type: boolean
example: true
children:
type: array
items:
$ref: '#/components/schemas/ColumnType'
FileMetadata:
type: object
properties:
filePath:
type: string
example: data/sales.orc
fileVersion:
type: string
example: '0.12'
writerVersion:
type: string
example: ORC_135
compression:
type: string
example: ZLIB
enum:
- NONE
- ZLIB
- SNAPPY
- LZO
- LZ4
- ZSTD
compressionBlockSize:
type: integer
example: 262144
rowCount:
type: integer
example: 1000000
rawDataSize:
type: integer
example: 104857600
numberOfStripes:
type: integer
example: 10
stripes:
type: array
items:
$ref: '#/components/schemas/StripeInfo'
ColumnStatistics:
type: object
properties:
columnIndex:
type: integer
example: 0
columnName:
type: string
example: customer_id
valueCount:
type: integer
example: 999500
nullCount:
type: integer
example: 500
hasMinimum:
type: boolean
example: true
minimum:
type: string
example: '1'
maximum:
type: string
example: '999999'
FileInfo:
type: object
properties:
path:
type: string
example: data/sales.orc
size:
type: integer
description: File size in bytes
example: 10485760
rowCount:
type: integer
example: 1000000
stripes:
type: integer
example: 10
x-generated-from: documentation