Load data from Amazon Redshift

Schedule recurring load jobs from Amazon Redshift into BigQuery.

Explore further

For detailed documentation that includes this code sample, see the following:

• Migrate schema and data from Amazon Redshift

Code sample

Java

Before trying this sample, follow the Java setup instructions in the BigQuery quickstart using client libraries. For more information, see the BigQuery Java API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries.

import com.google.api.gax.rpc.ApiException;
import com.google.cloud.bigquery.datatransfer.v1.CreateTransferConfigRequest;
import com.google.cloud.bigquery.datatransfer.v1.DataTransferServiceClient;
import com.google.cloud.bigquery.datatransfer.v1.ProjectName;
import com.google.cloud.bigquery.datatransfer.v1.TransferConfig;
import com.google.protobuf.Struct;
import com.google.protobuf.Value;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

// Sample to create redshift transfer config
public class CreateRedshiftTransfer {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    final String projectId = "MY_PROJECT_ID";
    String datasetId = "MY_DATASET_ID";
    String datasetRegion = "US";
    String jdbcUrl = "MY_JDBC_URL_CONNECTION_REDSHIFT";
    String dbUserName = "MY_USERNAME";
    String dbPassword = "MY_PASSWORD";
    String accessKeyId = "MY_AWS_ACCESS_KEY_ID";
    String secretAccessId = "MY_AWS_SECRET_ACCESS_ID";
    String s3Bucket = "MY_S3_BUCKET_URI";
    String redShiftSchema = "MY_REDSHIFT_SCHEMA";
    String tableNamePatterns = "*";
    String vpcAndReserveIpRange = "MY_VPC_AND_IP_RANGE";
    Map<String, Value> params = new HashMap<>();
    params.put("jdbc_url", Value.newBuilder().setStringValue(jdbcUrl).build());
    params.put("database_username", Value.newBuilder().setStringValue(dbUserName).build());
    params.put("database_password", Value.newBuilder().setStringValue(dbPassword).build());
    params.put("access_key_id", Value.newBuilder().setStringValue(accessKeyId).build());
    params.put("secret_access_key", Value.newBuilder().setStringValue(secretAccessId).build());
    params.put("s3_bucket", Value.newBuilder().setStringValue(s3Bucket).build());
    params.put("redshift_schema", Value.newBuilder().setStringValue(redShiftSchema).build());
    params.put("table_name_patterns", Value.newBuilder().setStringValue(tableNamePatterns).build());
    params.put(
        "migration_infra_cidr", Value.newBuilder().setStringValue(vpcAndReserveIpRange).build());
    TransferConfig transferConfig =
        TransferConfig.newBuilder()
            .setDestinationDatasetId(datasetId)
            .setDatasetRegion(datasetRegion)
            .setDisplayName("Your Redshift Config Name")
            .setDataSourceId("redshift")
            .setParams(Struct.newBuilder().putAllFields(params).build())
            .setSchedule("every 24 hours")
            .build();
    createRedshiftTransfer(projectId, transferConfig);
  }

  public static void createRedshiftTransfer(String projectId, TransferConfig transferConfig)
      throws IOException {
    try (DataTransferServiceClient client = DataTransferServiceClient.create()) {
      ProjectName parent = ProjectName.of(projectId);
      CreateTransferConfigRequest request =
          CreateTransferConfigRequest.newBuilder()
              .setParent(parent.toString())
              .setTransferConfig(transferConfig)
              .build();
      TransferConfig config = client.createTransferConfig(request);
      System.out.println("Cloud redshift transfer created successfully :" + config.getName());
    } catch (ApiException ex) {
      System.out.print("Cloud redshift transfer was not created." + ex.toString());
    }
  }
}

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