搜索数据资产

在 Google Cloud Platform 项目中搜索数据资源，例如数据集、表、视图和 Cloud Pub/Sub 主题。

深入探索

如需查看包含此代码示例的详细文档，请参阅以下内容：

代码示例

Java

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

如需向 Data Catalog 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。 

import com.google.cloud.datacatalog.v1.DataCatalogClient;
import com.google.cloud.datacatalog.v1.DataCatalogClient.SearchCatalogPagedResponse;
import com.google.cloud.datacatalog.v1.SearchCatalogRequest;
import com.google.cloud.datacatalog.v1.SearchCatalogRequest.Scope;
import com.google.cloud.datacatalog.v1.SearchCatalogResult;
import java.io.IOException;

// Sample to search catalog
public class SearchAssets {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "my-project-id";
    String query = "type=dataset";
    searchCatalog(projectId, query);
  }

  public static void searchCatalog(String projectId, String query) throws IOException {
    // Create a scope object setting search boundaries to the given organization.
    // Scope scope = Scope.newBuilder().addIncludeOrgIds(orgId).build();

    // Alternatively, search using project scopes.
    Scope scope = Scope.newBuilder().addIncludeProjectIds(projectId).build();

    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the "close" method on the client to safely clean up any remaining background resources.
    try (DataCatalogClient dataCatalogClient = DataCatalogClient.create()) {
      // Search the catalog.
      SearchCatalogRequest searchCatalogRequest =
          SearchCatalogRequest.newBuilder().setScope(scope).setQuery(query).build();
      SearchCatalogPagedResponse response = dataCatalogClient.searchCatalog(searchCatalogRequest);

      System.out.println("Search results:");
      for (SearchCatalogResult result : response.iterateAll()) {
        System.out.println(result);
      }
    }
  }
}

Node.js

在试用此示例之前，请按照 Data Catalog 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 Data Catalog Node.js API 参考文档。

如需向 Data Catalog 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。 

// Import the Google Cloud client library.
const {DataCatalogClient} = require('@google-cloud/datacatalog').v1;
const datacatalog = new DataCatalogClient();

async function searchAssets() {
  // Search data assets.

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // const projectId = 'my_project'; // Google Cloud Platform project

  // Set custom query.
  const query = 'type=lake';

  // Create request.
  const scope = {
    includeProjectIds: [projectId],
    // Alternatively, search using Google Cloud Organization scopes.
    // includeOrgIds: [organizationId],
  };

  const request = {
    scope: scope,
    query: query,
  };

  const [result] = await datacatalog.searchCatalog(request);

  console.log(`Found ${result.length} datasets in project ${projectId}.`);
  console.log('Datasets:');
  result.forEach(dataset => {
    console.log(dataset.relativeResourceName);
  });
}
searchAssets();

Python

在试用此示例之前，请按照 Data Catalog 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 Data Catalog Python API 参考文档。

如需向 Data Catalog 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。 

from google.cloud import datacatalog_v1

datacatalog = datacatalog_v1.DataCatalogClient()

# TODO: Set these values before running the sample.
project_id = "project_id"

# Set custom query.
search_string = "type=dataset"
scope = datacatalog_v1.types.SearchCatalogRequest.Scope()
scope.include_project_ids.append(project_id)

# Alternatively, search using organization scopes.
# scope.include_org_ids.append("my_organization_id")

search_results = datacatalog.search_catalog(scope=scope, query=search_string)

print("Results in project:")
for result in search_results:
    print(result)

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。