Google-cloud-java: Add 'auto-detect schema' to bigquery snippet

[redwrasse]

Add a Java example of loading files from Cloud Storage to BigQuery with the schema not specified, eg. what is 'auto-detect schema' in the BigQuery UI. Cannot find any documentation for this or code examples by way of Google.

Current snippet example:
https://github.com/GoogleCloudPlatform/google-cloud-java/blob/master/google-cloud-examples/src/main/java/com/google/cloud/examples/bigquery/snippets/CreateTableAndLoadData.java

[garrettjonesgoogle]

cc @lesv @tswast

[lesv]

@tswast Can you do this?

[tswast]

Added to my backlog.

The gist is to set the autodetect parameter on the LoadJobConfiguration. http://googlecloudplatform.github.io/google-cloud-java/0.20.2/apidocs/index.html

P.S. The autodetect parameter is no longer "experimental" in the REST API. The JavaDocs should get updated.

[garrettjonesgoogle]

Closing this out since @tswast is tracking it on his own backlog.

[TJC]

Hey all -- it's been about 13 months since this issue was opened -- and it's a high hit for the Google Search on how to enable autodetection. I still can't see how to do this in the example snippets, or the documentation.

Any chance of a bump on this issue?

[tswast]

@TJC thanks for the reminder. Yeah, I'll bump the priority.

[TJC]

For anyone else who is coming across this issue with the same question -- here was my solution:

    val tableId = TableId.of("my_dataset", "my_table_name")
    val jobBuilder = LoadJobConfiguration.newBuilder(tableId, gcsUri)
    jobBuilder.setAutodetect(true)
    jobBuilder.setFormatOptions(FormatOptions.json())
    val loadJobCfg = jobBuilder.build()
    val loadJob = JobInfo.of(loadJobCfg)

[the-dagger]

Bumping this since it hasn't been added yet.
cc : @tswast