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 439ca3503c
log
10 months ago
R log 10 months ago
inst/java log 10 months ago
man restored contributors 11 months ago
tests log 10 months ago
vignettes restored contributors 11 months ago
.Rbuildignore restored contributors 11 months ago
.bash_profile beta-update 1 year ago
.codecov.yml pre-travis check 11 months ago
.gitignore restored contributors 11 months ago
.travis.yml pre-travis check 11 months ago
CONDUCT.md beta-update 1 year ago
DESCRIPTION pre-travis check 11 months ago
LICENSE update 11 months ago
LICENSE.md update 11 months ago
NAMESPACE passed checks 11 months ago
NEWS.md log 10 months ago
README.Rmd pre-travis check 11 months ago
README.md pre-travis check 11 months ago
metis.Rproj passed checks 11 months ago

README.md

Travis-CI Build Status [Coverage Status](https://codecov.io/gh/hrbrmstr/metis CRAN_Status_Badge

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) # for piping b/c I'm addicted
dbConnect(
  metis::Athena(),
  Schema = "sampledb",
  AwsCredentialsProviderClass = "com.simba.athena.amazonaws.auth.PropertiesFileCredentialsProvider",
  AwsCredentialsProviderArguments = path.expand("~/.aws/athenaCredentials.props")
) -> 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> "2014-09-27T00:00:25.424956Z", "2014-09-27T00:00:56.439218Z", "2014-09-27T00:01:27.4417…
## $ elbname               <chr> "lb-demo", "lb-demo", "lb-demo", "lb-demo", "lb-demo", "lb-demo", "lb-demo", "lb-demo",…
## $ requestip             <chr> "241.230.198.83", "252.26.60.51", "250.244.20.109", "247.59.58.167", "254.64.224.54", "…
## $ requestport           <int> 27026, 27026, 27026, 27026, 27026, 27026, 27026, 27026, 27026, 27026
## $ backendip             <chr> "251.192.40.76", "249.89.116.3", "251.111.156.171", "251.139.91.156", "251.111.156.171"…
## $ backendport           <int> 443, 8888, 8888, 8888, 8000, 8888, 8888, 8888, 8888, 8888
## $ requestprocessingtime <dbl> 9.1e-05, 9.4e-05, 8.4e-05, 9.7e-05, 9.1e-05, 9.3e-05, 9.4e-05, 8.3e-05, 9.0e-05, 9.0e-05
## $ backendprocessingtime <dbl> 0.046598, 0.038973, 0.047054, 0.039845, 0.061461, 0.037791, 0.047035, 0.048792, 0.04572…
## $ clientresponsetime    <dbl> 4.9e-05, 4.7e-05, 4.9e-05, 4.9e-05, 4.0e-05, 7.7e-05, 7.5e-05, 7.3e-05, 4.0e-05, 6.7e-05
## $ elbresponsecode       <chr> "200", "200", "200", "200", "200", "200", "200", "200", "200", "200"
## $ backendresponsecode   <chr> "200", "200", "200", "200", "200", "400", "400", "200", "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=20g578y", "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> 2014-09-29
## $ 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 0.89 250 0.83 83 0.72 194 0.79
Rmd 1 0.11 50 0.17 32 0.28 53 0.21

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.