Access and Query Amazon Athena via DBI/JDBC
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
boB Rudis 15a5352dc1
passed checks
5 年之前
R passed checks 5 年之前
man passed checks 5 年之前
tests passed checks 5 年之前
.Rbuildignore passed checks 5 年之前
.bash_profile beta-update 6 年之前
.gitignore initial commit 7 年之前
CONDUCT.md beta-update 6 年之前
DESCRIPTION passed checks 5 年之前
LICENSE update 5 年之前
LICENSE.md update 5 年之前
NAMESPACE passed checks 5 年之前
NEWS.md handles types\! 5 年之前
README.Rmd passed checks 5 年之前
README.md passed checks 5 年之前
metis.Rproj passed checks 5 年之前

README.md

metis

Access and Query Amazon Athena via DBI/JDBC

Description

In Greek mythology, Metis was Athena’s “helper” so…

Methods are provided to connect to ‘Amazon’ ‘Athena’, lookup schemas/tables, perform queries and retrieve query results via the included JDBC DBI driver.

What’s Inside The Tin?

The following functions are implemented:

Easy-interface connection helper:

  • athena_connect Simplified Athena JDBC connection helper

Custom JDBC Classes:

  • Athena: AthenaJDBC (make a new Athena con obj)
  • AthenaConnection-class: AthenaJDBC
  • AthenaDriver-class: AthenaJDBC
  • AthenaResult-class: AthenaJDBC

Custom JDBC Class Methods:

  • dbConnect-method
  • dbExistsTable-method
  • dbGetQuery-method
  • dbListFields-method
  • dbListTables-method
  • dbReadTable-method
  • dbSendQuery-method

Pulled in from other cloudyr pkgs:

  • read_credentials: Use Credentials from .aws/credentials File
  • use_credentials: Use Credentials from .aws/credentials File

Installation

devtools::install_git("https://git.sr.ht/~hrbrmstr/metis")
# OR
devtools::install_gitlab("hrbrmstr/metis")
# OR
devtools::install_github("hrbrmstr/metis")

Usage

library(metis)

# current verison
packageVersion("metis")
## [1] '0.3.0'
library(rJava)
library(RJDBC)
library(metis)
library(magrittr) 

dbConnect(
  drv = metis.lite::Athena(),
  schema_name = "sampledb",
  provider = "com.simba.athena.amazonaws.auth.PropertiesFileCredentialsProvider",
  AwsCredentialsProviderArguments = path.expand("~/.aws/athenaCredentials.props"),
  s3_staging_dir = "s3://aws-athena-query-results-569593279821-us-east-1",
) -> con

dbListTables(con, schema="sampledb")
## [1] "elb_logs"
dbExistsTable(con, "elb_logs", schema="sampledb")
## [1] TRUE
dbListFields(con, "elb_logs", "sampledb")
##  [1] "timestamp"             "elbname"               "requestip"             "requestport"          
##  [5] "backendip"             "backendport"           "requestprocessingtime" "backendprocessingtime"
##  [9] "clientresponsetime"    "elbresponsecode"       "backendresponsecode"   "receivedbytes"        
## [13] "sentbytes"             "requestverb"           "url"                   "protocol"
dbGetQuery(con, "SELECT * FROM sampledb.elb_logs LIMIT 10") %>% 
  dplyr::glimpse()
## Observations: 10
## Variables: 16
## $ timestamp             <chr> "2014-09-29T03:24:38.169500Z", "2014-09-29T03:25:09.029469Z", "2014-09-29T03:25:39.8676…
## $ elbname               <chr> "lb-demo", "lb-demo", "lb-demo", "lb-demo", "lb-demo", "lb-demo", "lb-demo", "lb-demo",…
## $ requestip             <chr> "253.89.30.138", "248.64.121.231", "245.21.209.210", "244.77.57.59", "244.185.170.87", …
## $ requestport           <int> 20159, 20159, 20159, 20159, 20159, 20159, 20159, 20159, 20159, 20159
## $ backendip             <chr> "253.89.30.138", "244.77.57.59", "240.105.192.251", "253.89.30.138", "248.64.121.231", …
## $ backendport           <int> 8888, 8888, 8888, 8899, 8888, 8888, 8888, 8888, 8888, 8888
## $ requestprocessingtime <dbl> 7.5e-05, 9.1e-05, 9.0e-05, 9.5e-05, 8.9e-05, 9.3e-05, 8.7e-05, 9.2e-05, 9.0e-05, 9.1e-05
## $ backendprocessingtime <dbl> 0.047465, 0.044693, 0.045687, 0.051089, 0.045445, 0.045845, 0.046027, 0.045039, 0.05010…
## $ clientresponsetime    <dbl> 6.5e-05, 7.2e-05, 6.4e-05, 7.0e-05, 5.4e-05, 6.7e-05, 5.7e-05, 4.6e-05, 8.7e-05, 4.9e-05
## $ elbresponsecode       <chr> "200", "200", "200", "200", "200", "200", "200", "200", "200", "200"
## $ backendresponsecode   <chr> "200", "200", "400", "200", "404", "200", "403", "404", "200", "200"
## $ receivedbytes         <S3: integer64> 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
## $ sentbytes             <S3: integer64> 2, 2, 2, 2, 2, 2, 2, 2, 2, 2
## $ requestverb           <chr> "GET", "GET", "GET", "GET", "GET", "GET", "GET", "GET", "GET", "GET"
## $ url                   <chr> "http://www.abcxyz.com:80/jobbrowser/?format=json&state=running&user=248nnm5", "http://…
## $ protocol              <chr> "HTTP/1.1", "HTTP/1.1", "HTTP/1.1", "HTTP/1.1", "HTTP/1.1", "HTTP/1.1", "HTTP/1.1", "HT…

Check types

dbGetQuery(con, "
SELECT
  CAST('chr' AS CHAR(4)) achar,
  CAST('varchr' AS VARCHAR) avarchr,
  CAST(SUBSTR(timestamp, 1, 10) AS DATE) AS tsday,
  CAST(100.1 AS DOUBLE) AS justadbl,
  CAST(127 AS TINYINT) AS asmallint,
  CAST(100 AS INTEGER) AS justanint,
  CAST(100000000000000000 AS BIGINT) AS abigint,
  CAST(('GET' = 'GET') AS BOOLEAN) AS is_get,
  ARRAY[1, 2, 3] AS arr1,
  ARRAY['1', '2, 3', '4'] AS arr2,
  MAP(ARRAY['foo', 'bar'], ARRAY[1, 2]) AS mp,
  CAST(ROW(1, 2.0) AS ROW(x BIGINT, y DOUBLE)) AS rw,
  CAST('{\"a\":1}' AS JSON) js
FROM elb_logs
LIMIT 1
") %>% 
  dplyr::glimpse()
## Observations: 1
## Variables: 13
## $ achar     <chr> "chr "
## $ avarchr   <chr> "varchr"
## $ tsday     <date> 2014-09-26
## $ justadbl  <dbl> 100.1
## $ asmallint <int> 127
## $ justanint <int> 100
## $ abigint   <S3: integer64> 100000000000000000
## $ is_get    <lgl> TRUE
## $ arr1      <chr> "1, 2, 3"
## $ arr2      <chr> "1, 2, 3, 4"
## $ mp        <chr> "{bar=2, foo=1}"
## $ rw        <chr> "{x=1, y=2.0}"
## $ js        <chr> "\"{\\\"a\\\":1}\""
cloc::cloc_pkg_md()
Lang # Files (%) LoC (%) Blank lines (%) # Lines (%)
R 8 0.89 232 0.85 77 0.71 160 0.76
Rmd 1 0.11 42 0.15 32 0.29 51 0.24

Code of Conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.