modakanalytics / bigquery.almaren

BigQuery Connector For Almaren Framework

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BigQuery Connector

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libraryDependencies += "com.github.music-of-the-ainur" %% "bigquery-almaren" % "0.0.3-2.4"

BigQuery Connector was implemented using https://github.com/GoogleCloudDataproc/spark-bigquery-connector. For more details check the following link.

spark-shell --master "local[*]" --packages "com.github.music-of-the-ainur:almaren-framework_2.11:0.3.0-2.4,com.github.music-of-the-ainur:bigquery-almaren_2.11:0.0.3-2.4"

Source and Target

Source

Parameteres

Parameters Description
table The BigQuery table which is present in a dataset in the format [[project:]dataset.]table
options Description
------------- -------------
parentProject The Google Cloud resource hierarchy resembles the file system which manages entities hierarchically . The Google Cloud Project ID of the table.
project The Google Cloud Project ID of the table. A project organizes all your Google Cloud resources .For example, all of your Cloud Storage buckets and objects, along with user permissions for accessing them, reside in a project.
dataset A dataset is contained within a specific project. Datasets are top-level containers that are used to organize and control access to your tables and views

Example

import com.github.music.of.the.ainur.almaren.Almaren
import com.github.music.of.the.ainur.almaren.bigquery.BigQuery.BigQueryImplicit
import com.github.music.of.the.ainur.almaren.builder.Core.Implicit

val almaren = Almaren("App Name")

spark.conf.set("gcpAccessToken","token")

val df =  almaren
         .builder
         .sourceBigQuery("dataset.table",Map("parentProject"->"project_name","project"->"project_name"))
         .batch

df.show(false)

Target:

Parameters

Parameters Description
table The BigQuery table which is present in a dataset in the format [[project:]dataset.]table
options Description
------------- -------------
parentProject The Google Cloud resource hierarchy resembles the file system which manages entities hierarchically . The Google Cloud Project ID of the table.
project The Google Cloud Project ID of the table. A project organizes all your Google Cloud resources .For example, all of your Cloud Storage buckets and objects, along with user permissions for accessing them, reside in a project.
dataset A dataset is contained within a specific project. Datasets are top-level containers that are used to organize and control access to your tables and views
temporaryGcsBucket The GCS bucket that temporarily holds the data before it is loaded to BigQuery. Required unless set in the Spark configuration (spark.conf.set(...)).

Example

import com.github.music.of.the.ainur.almaren.Almaren
import com.github.music.of.the.ainur.almaren.bigquery.BigQuery.BigQueryImplicit
import com.github.music.of.the.ainur.almaren.builder.Core.Implicit
import org.apache.spark.sql.SaveMode

val almaren = Almaren("App Name")

spark.conf.set("gcpAccessToken","token")

almaren.builder
    .sourceSql("""SELECT sha2(concat_ws("",array(*)),256) as id,*,current_timestamp from deputies""")
    .coalesce(30)
    .targetBigQuery("dataset.table",Map("parentProject"->"project_name","project"->"project_name","temporaryGcsBucket"->"bucket"),SaveMode.Overwrite)
    .batch

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libraryDependencies += "com.github.music-of-the-ainur" %% "bigquery-almaren" % "0.0.1"
Ammonite REPL 
import $ivy.`com.github.music-of-the-ainur::bigquery-almaren:0.0.1`
<dependency>
  <groupId>com.github.music-of-the-ainur</groupId>
  <artifactId>bigquery-almaren_2.12</artifactId>
  <version>0.0.1</version>
</dependency>
compile group: 'com.github.music-of-the-ainur', name: 'bigquery-almaren_2.12', version: '0.0.1'
Mill build tool 
ivy"com.github.music-of-the-ainur::bigquery-almaren:0.0.1"
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