Google's BigQuery Service features a REST-based API that allows developers to create applications to run ad-hoc queries on massive datasets. These sample Java applications demonstrate how to access the BigQuery API using the Google Cloud Client Library for Java.
Install Maven.
Authenticate using a service account.
Create a service account, download a JSON key file, and set the GOOGLE_APPLICATION_CREDENTIALS
environment variable.
Build your project with:
mvn clean package -DskipTests
You can then run a given ClassName
via:
mvn exec:java -Dexec.mainClass=com.example.bigquery.ClassName \
-DpropertyName=propertyValue \
-Dexec.args="any arguments to the app"
mvn exec:java -Dexec.mainClass=com.example.bigquery.QuickstartSample
mvn exec:java -Dexec.mainClass=com.example.bigquery.QuerySample \
-Dexec.args=' \
--query="SELECT corpus FROM `bigquery-public-data.samples.shakespeare` GROUP BY corpus;" \
--runStandardSqlQuery'
To run the example from the simple app example documentation:
mvn exec:java -Dexec.mainClass=com.example.bigquery.SimpleApp