/**
* Tries to create the BigQuery table. If a table with the same name already exists in the
* dataset, the table creation fails, and the function returns null. In such a case, the existing
* table doesn't necessarily have the same schema as specified by the parameter.
*
* @param schema Schema of the new BigQuery table.
* @return The newly created BigQuery table information, or null if the table with the same name
* already exists.
* @throws IOException if other error than already existing table occurs.
*/
@Nullable
public Table tryCreateTable(TableSchema schema) throws IOException {
LOG.info("Trying to create BigQuery table: {}", BigQueryIO.toTableSpec(ref));
Table content = new Table();
content.setTableReference(ref);
content.setSchema(schema);
try {
return client.tables().insert(ref.getProjectId(), ref.getDatasetId(), content).execute();
} catch (IOException e) {
if (new ApiErrorExtractor().itemAlreadyExists(e)) {
LOG.info("The BigQuery table already exists.");
return null;
}
throw e;
}
}
