GetCrawler 搭配 使用 AWS SDK - AWS Glue

本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。

GetCrawler 搭配 使用 AWS SDK

下列程式碼範例示範如何使用 GetCrawler

動作範例是大型程式的程式碼摘錄,必須在內容中執行。您可以在下列程式碼範例的內容中看到此動作:

.NET
AWS SDK for .NET
注意

還有更多功能 GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

/// <summary> /// Get information about an AWS Glue crawler. /// </summary> /// <param name="crawlerName">The name of the crawler.</param> /// <returns>A Crawler object describing the crawler.</returns> public async Task<Crawler?> GetCrawlerAsync(string crawlerName) { var crawlerRequest = new GetCrawlerRequest { Name = crawlerName, }; var response = await _amazonGlue.GetCrawlerAsync(crawlerRequest); if (response.HttpStatusCode == System.Net.HttpStatusCode.OK) { var databaseName = response.Crawler.DatabaseName; Console.WriteLine($"{crawlerName} has the database {databaseName}"); return response.Crawler; } Console.WriteLine($"No information regarding {crawlerName} could be found."); return null; }
  • 如需API詳細資訊,請參閱 AWS SDK for .NET API 參考GetCrawler中的 。

C++
SDK 適用於 C++
注意

還有更多功能 GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region in which the bucket was created (overrides config file). // clientConfig.region = "us-east-1"; Aws::Glue::GlueClient client(clientConfig); Aws::Glue::Model::GetCrawlerRequest request; request.SetName(CRAWLER_NAME); Aws::Glue::Model::GetCrawlerOutcome outcome = client.GetCrawler(request); if (outcome.IsSuccess()) { Aws::Glue::Model::CrawlerState crawlerState = outcome.GetResult().GetCrawler().GetState(); std::cout << "Retrieved crawler with state " << Aws::Glue::Model::CrawlerStateMapper::GetNameForCrawlerState( crawlerState) << "." << std::endl; } else { std::cerr << "Error retrieving a crawler. " << outcome.GetError().GetMessage() << std::endl; deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, "", bucketName, clientConfig); return false; }
  • 如需API詳細資訊,請參閱 AWS SDK for C++ API 參考GetCrawler中的 。

Java
SDK 適用於 Java 2.x
注意

還有更多功能 GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

/** * Retrieves a specific crawler from the AWS Glue service and waits for it to be in the "READY" state. * * @param glueClient the AWS Glue client used to interact with the Glue service * @param crawlerName the name of the crawler to be retrieved */ public static void getSpecificCrawler(GlueClient glueClient, String crawlerName) throws InterruptedException { try { GetCrawlerRequest crawlerRequest = GetCrawlerRequest.builder() .name(crawlerName) .build(); boolean ready = false; while (!ready) { GetCrawlerResponse response = glueClient.getCrawler(crawlerRequest); String status = response.crawler().stateAsString(); if (status.compareTo("READY") == 0) { ready = true; } Thread.sleep(3000); } System.out.println("The crawler is now ready"); } catch (GlueException | InterruptedException e) { throw e; } }
  • 如需API詳細資訊,請參閱 AWS SDK for Java 2.x API 參考GetCrawler中的 。

JavaScript
SDK for JavaScript (v3)
注意

還有更多功能 GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

const getCrawler = (name) => { const client = new GlueClient({}); const command = new GetCrawlerCommand({ Name: name, }); return client.send(command); };
  • 如需API詳細資訊,請參閱 AWS SDK for JavaScript API 參考GetCrawler中的 。

Kotlin
SDK 適用於 Kotlin
注意

還有更多功能 GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

suspend fun getSpecificCrawler(crawlerName: String?) { val request = GetCrawlerRequest { name = crawlerName } GlueClient { region = "us-east-1" }.use { glueClient -> val response = glueClient.getCrawler(request) val role = response.crawler?.role println("The role associated with this crawler is $role") } }
  • 如需API詳細資訊,請參閱 GetCrawler 中的 AWS SDK Kotlin API參考

PHP
適用於 PHP 的 SDK
注意

還有更多功能 GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

echo "Waiting for crawler"; do { $crawler = $glueService->getCrawler($crawlerName); echo "."; sleep(10); } while ($crawler['Crawler']['State'] != "READY"); echo "\n"; public function getCrawler($crawlerName) { return $this->customWaiter(function () use ($crawlerName) { return $this->glueClient->getCrawler([ 'Name' => $crawlerName, ]); }); }
  • 如需API詳細資訊,請參閱 AWS SDK for PHP API 參考GetCrawler中的 。

Python
SDK for Python (Boto3)
注意

還有更多功能 GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

class GlueWrapper: """Encapsulates AWS Glue actions.""" def __init__(self, glue_client): """ :param glue_client: A Boto3 Glue client. """ self.glue_client = glue_client def get_crawler(self, name): """ Gets information about a crawler. :param name: The name of the crawler to look up. :return: Data about the crawler. """ crawler = None try: response = self.glue_client.get_crawler(Name=name) crawler = response["Crawler"] except ClientError as err: if err.response["Error"]["Code"] == "EntityNotFoundException": logger.info("Crawler %s doesn't exist.", name) else: logger.error( "Couldn't get crawler %s. Here's why: %s: %s", name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise return crawler
  • 如需API詳細資訊,請參閱 GetCrawler 中的 AWS SDK for Python (Boto3) API參考

Ruby
SDK 適用於 Ruby
注意

還有更多功能 GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

# The `GlueWrapper` class serves as a wrapper around the AWS Glue API, providing a simplified interface for common operations. # It encapsulates the functionality of the AWS SDK for Glue and provides methods for interacting with Glue crawlers, databases, tables, jobs, and S3 resources. # The class initializes with a Glue client and a logger, allowing it to make API calls and log any errors or informational messages. class GlueWrapper def initialize(glue_client, logger) @glue_client = glue_client @logger = logger end # Retrieves information about a specific crawler. # # @param name [String] The name of the crawler to retrieve information about. # @return [Aws::Glue::Types::Crawler, nil] The crawler object if found, or nil if not found. def get_crawler(name) @glue_client.get_crawler(name: name) rescue Aws::Glue::Errors::EntityNotFoundException @logger.info("Crawler #{name} doesn't exist.") false rescue Aws::Glue::Errors::GlueException => e @logger.error("Glue could not get crawler #{name}: \n#{e.message}") raise end
  • 如需API詳細資訊,請參閱 AWS SDK for Ruby API 參考GetCrawler中的 。

Rust
SDK for Rust
注意

還有更多功能 GitHub。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫中設定和執行。

let tmp_crawler = glue .get_crawler() .name(self.crawler()) .send() .await .map_err(GlueMvpError::from_glue_sdk)?;
  • 如需API詳細資訊,請參閱 GetCrawler 中的 AWS SDK for Rust API參考

如需開發人員指南和程式碼範例的完整清單 AWS SDK,請參閱 使用此服務搭配 AWS SDK。本主題也包含入門的相關資訊,以及先前SDK版本的詳細資訊。