获取迁移工作流

从 BigQuery Migration Service 中检索特定的迁移工作流。

代码示例

Node.js

试用此示例之前，请按照 BigQuery 快速入门：使用客户端库中的 Node.js 设置说明进行操作。 如需了解详情，请参阅 BigQuery Node.js API 参考文档。

如需向 BigQuery 进行身份验证，请设置应用默认凭证。如需了解详情，请参阅为客户端库设置身份验证。

const {MigrationServiceClient} = require('@google-cloud/bigquery-migration').v2;
const {status} = require('@grpc/grpc-js');

const client = new MigrationServiceClient();

/**
 * Gets a previously created migration workflow.
 *
 * A migration workflow is a collection of tasks that you can create to support
 * data warehouse migration to BigQuery.
 *
 * @param {string} projectId The Google Cloud project ID.
 * @param {string} location The Google Cloud location of the workflow (for example, 'us').
 * @param {string} workflowId The ID of the migration workflow (for example, '12345678-abcd-4372-a567-0e02b2c3d479').
 */
async function getMigrationWorkflow(
  projectId,
  location = 'us',
  workflowId = '12345678-abcd-4372-a567-0e02b2c3d479',
) {
  const name = client.migrationWorkflowPath(projectId, location, workflowId);
  const request = {
    name,
  };

  try {
    const [workflow] = await client.getMigrationWorkflow(request);
    console.log(`Migration workflow found: ${workflow.name}`);
    console.log(`  Display Name: ${workflow.displayName}`);
    console.log(`  State: ${workflow.state}`);
  } catch (err) {
    if (err.code === status.NOT_FOUND) {
      console.error(`Migration workflow not found: ${name}`);
    } else {
      console.error('Error getting migration workflow:', err);
    }
  }
}

Python

试用此示例之前，请按照 BigQuery 快速入门：使用客户端库中的 Python 设置说明进行操作。 如需了解详情，请参阅 BigQuery Python API 参考文档。

如需向 BigQuery 进行身份验证，请设置应用默认凭证。如需了解详情，请参阅为客户端库设置身份验证。

from google.api_core.exceptions import NotFound
from google.cloud import bigquery_migration_v2

client = bigquery_migration_v2.MigrationServiceClient()


def get_migration_workflow(project_id: str, location: str, workflow_id: str) -> None:
    """Gets a previously created migration workflow.

    Args:
        project_id: The Google Cloud project ID.
        location: The geographic location of the migration workflow, for example, "us".
        workflow_id: The ID of the migration workflow to retrieve.
    """

    name = client.migration_workflow_path(project_id, location, workflow_id)

    try:
        workflow = client.get_migration_workflow(name=name)
        print(f"Successfully retrieved migration workflow: {workflow.name}")
        print(f"Display Name: {workflow.display_name}")
        print(f"State: {workflow.state.name}")
    except NotFound:
        print(f"Migration workflow not found: {name}")

后续步骤

如需搜索和过滤其他 Google Cloud 产品的代码示例，请参阅Google Cloud 示例浏览器。