Exemples AWS Glue avec le kit SDK pour C++

Les exemples de code suivants montrent comment réaliser des actions et mettre en œuvre des scénarios courants en utilisant le kit AWS SDK pour C++ avec AWS Glue.

Les principes de base sont des exemples de code qui vous montrent comment effectuer les opérations essentielles au sein d’un service.

Les actions sont des extraits de code de programmes plus larges et doivent être exécutées dans leur contexte. Alors que les actions vous indiquent comment appeler des fonctions de service individuelles, vous pouvez les voir en contexte dans leurs scénarios associés.

Chaque exemple inclut un lien vers le code source complet, où vous trouverez des instructions sur la configuration et l’exécution du code en contexte.

Mise en route

Bonjour AWS Glue

Les exemples de code suivants montrent comment démarrer avec AWS Glue.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

Code pour le fichier CMake CMakeLists.txt.

# Set the minimum required version of CMake for this project.
cmake_minimum_required(VERSION 3.13)

# Set the AWS service components used by this project.
set(SERVICE_COMPONENTS glue)

# Set this project's name.
project("hello_glue")

# Set the C++ standard to use to build this target.
# At least C++ 11 is required for the AWS SDK for C++.
set(CMAKE_CXX_STANDARD 11)

# Use the MSVC variable to determine if this is a Windows build.
set(WINDOWS_BUILD ${MSVC})

if (WINDOWS_BUILD) # Set the location where CMake can find the installed libraries for the AWS SDK.
    string(REPLACE ";" "/aws-cpp-sdk-all;" SYSTEM_MODULE_PATH "${CMAKE_SYSTEM_PREFIX_PATH}/aws-cpp-sdk-all")
    list(APPEND CMAKE_PREFIX_PATH ${SYSTEM_MODULE_PATH})
endif ()

# Find the AWS SDK for C++ package.
find_package(AWSSDK REQUIRED COMPONENTS ${SERVICE_COMPONENTS})

if (WINDOWS_BUILD AND AWSSDK_INSTALL_AS_SHARED_LIBS)
     # Copy relevant AWS SDK for C++ libraries into the current binary directory for running and debugging.

     # set(BIN_SUB_DIR "/Debug") # if you are building from the command line you may need to uncomment this 
                                    # and set the proper subdirectory to the executables' location.

     AWSSDK_CPY_DYN_LIBS(SERVICE_COMPONENTS "" ${CMAKE_CURRENT_BINARY_DIR}${BIN_SUB_DIR})
endif ()

add_executable(${PROJECT_NAME}
        hello_glue.cpp)

target_link_libraries(${PROJECT_NAME}
        ${AWSSDK_LINK_LIBRARIES})

Code pour le fichier source hello_glue.cpp.

#include <aws/core/Aws.h>
#include <aws/glue/GlueClient.h>
#include <aws/glue/model/ListJobsRequest.h>
#include <iostream>

/*
 *  A "Hello Glue" starter application which initializes an AWS Glue client and lists the
 *  AWS Glue job definitions.
 *
 *  main function
 *
 *  Usage: 'hello_glue'
 *
 */

int main(int argc, char **argv) {
    Aws::SDKOptions options;
    // Optionally change the log level for debugging.
//   options.loggingOptions.logLevel = Utils::Logging::LogLevel::Debug;
    Aws::InitAPI(options); // Should only be called once.
    int result = 0;
    {
        Aws::Client::ClientConfiguration clientConfig;
        // Optional: Set to the AWS Region (overrides config file).
        // clientConfig.region = "us-east-1";

        Aws::Glue::GlueClient glueClient(clientConfig);

        std::vector<Aws::String> jobs;

        Aws::String nextToken;  // Used for pagination.
        do {
            Aws::Glue::Model::ListJobsRequest listJobsRequest;
            if (!nextToken.empty()) {
                listJobsRequest.SetNextToken(nextToken);
            }

            Aws::Glue::Model::ListJobsOutcome listRunsOutcome = glueClient.ListJobs(
                    listJobsRequest);

            if (listRunsOutcome.IsSuccess()) {
                const std::vector<Aws::String> &jobNames = listRunsOutcome.GetResult().GetJobNames();
                jobs.insert(jobs.end(), jobNames.begin(), jobNames.end());

                nextToken = listRunsOutcome.GetResult().GetNextToken();
            } else {
                std::cerr << "Error listing jobs. "
                          << listRunsOutcome.GetError().GetMessage()
                          << std::endl;
                result = 1;
                break;
            }
        } while (!nextToken.empty());

        std::cout << "Your account has " << jobs.size() << " jobs."
                  << std::endl;
        for (size_t i = 0; i < jobs.size(); ++i) {
            std::cout << "   " << i + 1 << ". " << jobs[i] << std::endl;
        }
    }
    Aws::ShutdownAPI(options); // Should only be called once.
    return result;
}

• Pour les détails de l’API, veuillez consulter ListJobs dans la Référence d’API AWS SDK pour C++.

Principes de base

Principes de base

L’exemple de code suivant illustre comment :

• Créez un Crawler qui indexe un compartiment Amazon S3 public et génère une base de données de métadonnées au format CSV.

• Répertoriez les informations relatives aux bases de données et aux tables de votre AWS Glue Data Catalog.

• Créez une tâche pour extraire les données CSV du compartiment S3, transformer les données et charger la sortie au format JSON dans un autre compartiment S3.

• Répertoriez les informations relatives aux exécutions de tâches, visualisez les données transformées et nettoyez les ressources.

Pour plus d’informations, veuillez consulter le Didacticiel : commencer avec AWS Glue Studio.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

//! Scenario which demonstrates using AWS Glue to add a crawler and run a job.
/*!
 \\sa runGettingStartedWithGlueScenario()
 \param bucketName: An S3 bucket created in the setup.
 \param roleName: An AWS Identity and Access Management (IAM) role created in the setup.
 \param clientConfig: AWS client configuration.
 \return bool: Successful completion.
 */

bool AwsDoc::Glue::runGettingStartedWithGlueScenario(const Aws::String &bucketName,
                                                     const Aws::String &roleName,
                                                     const Aws::Client::ClientConfiguration &clientConfig) {
    Aws::Glue::GlueClient client(clientConfig);

    Aws::String roleArn;
    if (!getRoleArn(roleName, roleArn, clientConfig)) {
        std::cerr << "Error getting role ARN for role." << std::endl;
        return false;
    }

    // 1. Upload the job script to the S3 bucket.
    {
        std::cout << "Uploading the job script '"
                  << AwsDoc::Glue::PYTHON_SCRIPT
                  << "'." << std::endl;

        if (!AwsDoc::Glue::uploadFile(bucketName,
                                      AwsDoc::Glue::PYTHON_SCRIPT_PATH,
                                      AwsDoc::Glue::PYTHON_SCRIPT,
                                      clientConfig)) {
            std::cerr << "Error uploading the job file." << std::endl;
            return false;
        }
    }

    // 2. Create a crawler.
    {
        Aws::Glue::Model::S3Target s3Target;
        s3Target.SetPath("s3://crawler-public-us-east-1/flight/2016/csv");
        Aws::Glue::Model::CrawlerTargets crawlerTargets;
        crawlerTargets.AddS3Targets(s3Target);

        Aws::Glue::Model::CreateCrawlerRequest request;
        request.SetTargets(crawlerTargets);
        request.SetName(CRAWLER_NAME);
        request.SetDatabaseName(CRAWLER_DATABASE_NAME);
        request.SetTablePrefix(CRAWLER_DATABASE_PREFIX);
        request.SetRole(roleArn);

        Aws::Glue::Model::CreateCrawlerOutcome outcome = client.CreateCrawler(request);

        if (outcome.IsSuccess()) {
            std::cout << "Successfully created the crawler." << std::endl;
        }
        else {
            std::cerr << "Error creating a crawler. " << outcome.GetError().GetMessage()
                      << std::endl;
            deleteAssets("", CRAWLER_DATABASE_NAME, "", bucketName, clientConfig);
            return false;
        }
    }

    // 3. Get a crawler.
    {
        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;
        }
    }

    // 4. Start a crawler.
    {
        Aws::Glue::Model::StartCrawlerRequest request;
        request.SetName(CRAWLER_NAME);

        Aws::Glue::Model::StartCrawlerOutcome outcome = client.StartCrawler(request);


        if (outcome.IsSuccess() || (Aws::Glue::GlueErrors::CRAWLER_RUNNING ==
                                    outcome.GetError().GetErrorType())) {
            if (!outcome.IsSuccess()) {
                std::cout << "Crawler was already started." << std::endl;
            }
            else {
                std::cout << "Successfully started crawler." << std::endl;
            }

            std::cout << "This may take a while to run." << std::endl;

            Aws::Glue::Model::CrawlerState crawlerState = Aws::Glue::Model::CrawlerState::NOT_SET;
            int iterations = 0;
            while (Aws::Glue::Model::CrawlerState::READY != crawlerState) {
                std::this_thread::sleep_for(std::chrono::seconds(1));
                ++iterations;
                if ((iterations % 10) == 0) { // Log status every 10 seconds.
                    std::cout << "Crawler status " <<
                              Aws::Glue::Model::CrawlerStateMapper::GetNameForCrawlerState(
                                      crawlerState)
                              << ". After " << iterations
                              << " seconds elapsed."
                              << std::endl;
                }
                Aws::Glue::Model::GetCrawlerRequest getCrawlerRequest;
                getCrawlerRequest.SetName(CRAWLER_NAME);

                Aws::Glue::Model::GetCrawlerOutcome getCrawlerOutcome = client.GetCrawler(
                        getCrawlerRequest);

                if (getCrawlerOutcome.IsSuccess()) {
                    crawlerState = getCrawlerOutcome.GetResult().GetCrawler().GetState();
                }
                else {
                    std::cerr << "Error getting crawler.  "
                              << getCrawlerOutcome.GetError().GetMessage() << std::endl;
                    break;
                }
            }

            if (Aws::Glue::Model::CrawlerState::READY == crawlerState) {
                std::cout << "Crawler finished running after " << iterations
                          << " seconds."
                          << std::endl;
            }
        }
        else {
            std::cerr << "Error starting a crawler.  "
                      << outcome.GetError().GetMessage()
                      << std::endl;

            deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, "", bucketName,
                         clientConfig);
            return false;
        }
    }

    // 5. Get a database.
    {
        Aws::Glue::Model::GetDatabaseRequest request;
        request.SetName(CRAWLER_DATABASE_NAME);

        Aws::Glue::Model::GetDatabaseOutcome outcome = client.GetDatabase(request);

        if (outcome.IsSuccess()) {
            const Aws::Glue::Model::Database &database = outcome.GetResult().GetDatabase();

            std::cout << "Successfully retrieve the database\n" <<
                      database.Jsonize().View().WriteReadable() << "'." << std::endl;
        }
        else {
            std::cerr << "Error getting the database.  "
                      << outcome.GetError().GetMessage() << std::endl;
            deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, "", bucketName,
                         clientConfig);
            return false;
        }
    }

    // 6. Get tables.
    Aws::String tableName;
    {
        Aws::Glue::Model::GetTablesRequest request;
        request.SetDatabaseName(CRAWLER_DATABASE_NAME);
        std::vector<Aws::Glue::Model::Table> all_tables;
        Aws::String nextToken; // Used for pagination.
        do {
            Aws::Glue::Model::GetTablesOutcome outcome = client.GetTables(request);

            if (outcome.IsSuccess()) {
                const std::vector<Aws::Glue::Model::Table> &tables = outcome.GetResult().GetTableList();
                all_tables.insert(all_tables.end(), tables.begin(), tables.end());
                nextToken = outcome.GetResult().GetNextToken();
            }
            else {
                std::cerr << "Error getting the tables. "
                          << outcome.GetError().GetMessage()
                          << std::endl;
                deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, "", bucketName,
                             clientConfig);
                return false;
            }
        } while (!nextToken.empty());

        std::cout << "The database contains " << all_tables.size()
                  << (all_tables.size() == 1 ?
                      " table." : "tables.") << std::endl;
        std::cout << "Here is a list of the tables in the database.";
        for (size_t index = 0; index < all_tables.size(); ++index) {
            std::cout << "    " << index + 1 << ":  " << all_tables[index].GetName()
                      << std::endl;
        }

        if (!all_tables.empty()) {
            int tableIndex = askQuestionForIntRange(
                    "Enter an index to display the database detail ",
                    1, static_cast<int>(all_tables.size()));
            std::cout << all_tables[tableIndex - 1].Jsonize().View().WriteReadable()
                      << std::endl;

            tableName = all_tables[tableIndex - 1].GetName();
        }
    }

    // 7. Create a job.
    {
        Aws::Glue::Model::CreateJobRequest request;
        request.SetName(JOB_NAME);
        request.SetRole(roleArn);
        request.SetGlueVersion(GLUE_VERSION);

        Aws::Glue::Model::JobCommand command;
        command.SetName(JOB_COMMAND_NAME);
        command.SetPythonVersion(JOB_PYTHON_VERSION);
        command.SetScriptLocation(
                Aws::String("s3://") + bucketName + "/" + PYTHON_SCRIPT);
        request.SetCommand(command);

        Aws::Glue::Model::CreateJobOutcome outcome = client.CreateJob(request);

        if (outcome.IsSuccess()) {
            std::cout << "Successfully created the job." << std::endl;
        }
        else {
            std::cerr << "Error creating the job. " << outcome.GetError().GetMessage()
                      << std::endl;
            deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, "", bucketName,
                         clientConfig);
            return false;
        }
    }

    // 8. Start a job run.
    {
        Aws::Glue::Model::StartJobRunRequest request;
        request.SetJobName(JOB_NAME);

        Aws::Map<Aws::String, Aws::String> arguments;
        arguments["--input_database"] = CRAWLER_DATABASE_NAME;
        arguments["--input_table"] = tableName;
        arguments["--output_bucket_url"] = Aws::String("s3://") + bucketName + "/";
        request.SetArguments(arguments);

        Aws::Glue::Model::StartJobRunOutcome outcome = client.StartJobRun(request);

        if (outcome.IsSuccess()) {
            std::cout << "Successfully started the job." << std::endl;

            Aws::String jobRunId = outcome.GetResult().GetJobRunId();

            int iterator = 0;
            bool done = false;
            while (!done) {
                ++iterator;
                std::this_thread::sleep_for(std::chrono::seconds(1));
                Aws::Glue::Model::GetJobRunRequest jobRunRequest;
                jobRunRequest.SetJobName(JOB_NAME);
                jobRunRequest.SetRunId(jobRunId);

                Aws::Glue::Model::GetJobRunOutcome jobRunOutcome = client.GetJobRun(
                        jobRunRequest);

                if (jobRunOutcome.IsSuccess()) {
                    const Aws::Glue::Model::JobRun &jobRun = jobRunOutcome.GetResult().GetJobRun();
                    Aws::Glue::Model::JobRunState jobRunState = jobRun.GetJobRunState();

                    if ((jobRunState == Aws::Glue::Model::JobRunState::STOPPED) ||
                        (jobRunState == Aws::Glue::Model::JobRunState::FAILED) ||
                        (jobRunState == Aws::Glue::Model::JobRunState::TIMEOUT)) {
                        std::cerr << "Error running job. "
                                  << jobRun.GetErrorMessage()
                                  << std::endl;
                        deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, JOB_NAME,
                                     bucketName,
                                     clientConfig);
                        return false;
                    }
                    else if (jobRunState ==
                             Aws::Glue::Model::JobRunState::SUCCEEDED) {
                        std::cout << "Job run succeeded after  " << iterator <<
                                  " seconds elapsed." << std::endl;
                        done = true;
                    }
                    else if ((iterator % 10) == 0) { // Log status every 10 seconds.
                        std::cout << "Job run status " <<
                                  Aws::Glue::Model::JobRunStateMapper::GetNameForJobRunState(
                                          jobRunState) <<
                                  ". " << iterator <<
                                  " seconds elapsed." << std::endl;
                    }
                }
                else {
                    std::cerr << "Error retrieving job run state. "
                              << jobRunOutcome.GetError().GetMessage()
                              << std::endl;
                    deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, JOB_NAME,
                                 bucketName, clientConfig);
                    return false;
                }
            }
        }
        else {
            std::cerr << "Error starting a job. " << outcome.GetError().GetMessage()
                      << std::endl;
            deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, JOB_NAME, bucketName,
                         clientConfig);
            return false;
        }
    }

    // 9. List the output data stored in the S3 bucket.
    {
        Aws::S3::S3Client s3Client;
        Aws::S3::Model::ListObjectsV2Request request;
        request.SetBucket(bucketName);
        request.SetPrefix(OUTPUT_FILE_PREFIX);

        Aws::String continuationToken; // Used for pagination.
        std::vector<Aws::S3::Model::Object> allObjects;
        do {
            if (!continuationToken.empty()) {
                request.SetContinuationToken(continuationToken);
            }
            Aws::S3::Model::ListObjectsV2Outcome outcome = s3Client.ListObjectsV2(
                    request);

            if (outcome.IsSuccess()) {
                const std::vector<Aws::S3::Model::Object> &objects =
                        outcome.GetResult().GetContents();
                allObjects.insert(allObjects.end(), objects.begin(), objects.end());
                continuationToken = outcome.GetResult().GetNextContinuationToken();
            }
            else {
                std::cerr << "Error listing objects. "
                          << outcome.GetError().GetMessage()
                          << std::endl;
                break;
            }
        } while (!continuationToken.empty());

        std::cout << "Data from your job is in " << allObjects.size() <<
                  " files in the S3 bucket, " << bucketName << "." << std::endl;

        for (size_t i = 0; i < allObjects.size(); ++i) {
            std::cout << "    " << i + 1 << ". " << allObjects[i].GetKey()
                      << std::endl;
        }

        int objectIndex = askQuestionForIntRange(
                std::string(
                        "Enter the number of a block to download it and see the first ") +
                std::to_string(LINES_OF_RUN_FILE_TO_DISPLAY) +
                " lines of JSON output in the block: ", 1,
                static_cast<int>(allObjects.size()));

        Aws::String objectKey = allObjects[objectIndex - 1].GetKey();

        std::stringstream stringStream;
        if (getObjectFromBucket(bucketName, objectKey, stringStream,
                                clientConfig)) {
            for (int i = 0; i < LINES_OF_RUN_FILE_TO_DISPLAY && stringStream; ++i) {
                std::string line;
                std::getline(stringStream, line);
                std::cout << "    " << line << std::endl;
            }
        }
        else {
            deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, JOB_NAME, bucketName,
                         clientConfig);
            return false;
        }
    }

    // 10. List all the jobs.
    Aws::String jobName;
    {
        Aws::Glue::Model::ListJobsRequest listJobsRequest;

        Aws::String nextToken;
        std::vector<Aws::String> allJobNames;

        do {
            if (!nextToken.empty()) {
                listJobsRequest.SetNextToken(nextToken);
            }
            Aws::Glue::Model::ListJobsOutcome listRunsOutcome = client.ListJobs(
                    listJobsRequest);

            if (listRunsOutcome.IsSuccess()) {
                const std::vector<Aws::String> &jobNames = listRunsOutcome.GetResult().GetJobNames();
                allJobNames.insert(allJobNames.end(), jobNames.begin(), jobNames.end());
                nextToken = listRunsOutcome.GetResult().GetNextToken();
            }
            else {
                std::cerr << "Error listing jobs. "
                          << listRunsOutcome.GetError().GetMessage()
                          << std::endl;
            }
        } while (!nextToken.empty());
        std::cout << "Your account has " << allJobNames.size() << " jobs."
                  << std::endl;
        for (size_t i = 0; i < allJobNames.size(); ++i) {
            std::cout << "   " << i + 1 << ". " << allJobNames[i] << std::endl;
        }
        int jobIndex = askQuestionForIntRange(
                Aws::String("Enter a number between 1 and ") +
                std::to_string(allJobNames.size()) +
                " to see the list of runs for a job: ",
                1, static_cast<int>(allJobNames.size()));

        jobName = allJobNames[jobIndex - 1];
    }

    // 11. Get the job runs for a job.
    Aws::String jobRunID;
    if (!jobName.empty()) {
        Aws::Glue::Model::GetJobRunsRequest getJobRunsRequest;
        getJobRunsRequest.SetJobName(jobName);

        Aws::String nextToken; // Used for pagination.
        std::vector<Aws::Glue::Model::JobRun> allJobRuns;
        do {
            if (!nextToken.empty()) {
                getJobRunsRequest.SetNextToken(nextToken);
            }
            Aws::Glue::Model::GetJobRunsOutcome jobRunsOutcome = client.GetJobRuns(
                    getJobRunsRequest);

            if (jobRunsOutcome.IsSuccess()) {
                const std::vector<Aws::Glue::Model::JobRun> &jobRuns = jobRunsOutcome.GetResult().GetJobRuns();
                allJobRuns.insert(allJobRuns.end(), jobRuns.begin(), jobRuns.end());

                nextToken = jobRunsOutcome.GetResult().GetNextToken();
            }
            else {
                std::cerr << "Error getting job runs. "
                          << jobRunsOutcome.GetError().GetMessage()
                          << std::endl;
                break;
            }
        } while (!nextToken.empty());

        std::cout << "There are " << allJobRuns.size() << " runs in the job '"
                  <<
                  jobName << "'." << std::endl;

        for (size_t i = 0; i < allJobRuns.size(); ++i) {
            std::cout << "   " << i + 1 << ". " << allJobRuns[i].GetJobName()
                      << std::endl;
        }

        int runIndex = askQuestionForIntRange(
                Aws::String("Enter a number between 1 and ") +
                std::to_string(allJobRuns.size()) +
                " to see details for a run: ",
                1, static_cast<int>(allJobRuns.size()));
        jobRunID = allJobRuns[runIndex - 1].GetId();
    }

    // 12. Get a single job run.
    if (!jobRunID.empty()) {
        Aws::Glue::Model::GetJobRunRequest jobRunRequest;
        jobRunRequest.SetJobName(jobName);
        jobRunRequest.SetRunId(jobRunID);

        Aws::Glue::Model::GetJobRunOutcome jobRunOutcome = client.GetJobRun(
                jobRunRequest);

        if (jobRunOutcome.IsSuccess()) {
            std::cout << "Displaying the job run JSON description." << std::endl;
            std::cout
                    << jobRunOutcome.GetResult().GetJobRun().Jsonize().View().WriteReadable()
                    << std::endl;
        }
        else {
            std::cerr << "Error get a job run. "
                      << jobRunOutcome.GetError().GetMessage()
                      << std::endl;
        }
    }

    return deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, JOB_NAME, bucketName,
                        clientConfig);
}

//! Cleanup routine to delete created assets.
/*!
 \\sa deleteAssets()
 \param crawler: Name of an AWS Glue crawler.
 \param database: The name of an AWS Glue database.
 \param job: The name of an AWS Glue job.
 \param bucketName: The name of an S3 bucket.
 \param clientConfig: AWS client configuration.
 \return bool: Successful completion.
 */
bool AwsDoc::Glue::deleteAssets(const Aws::String &crawler, const Aws::String &database,
                                const Aws::String &job, const Aws::String &bucketName,
                                const Aws::Client::ClientConfiguration &clientConfig) {
    const Aws::Glue::GlueClient client(clientConfig);
    bool result = true;

    // 13. Delete a job.
    if (!job.empty()) {
        Aws::Glue::Model::DeleteJobRequest request;
        request.SetJobName(job);

        Aws::Glue::Model::DeleteJobOutcome outcome = client.DeleteJob(request);


        if (outcome.IsSuccess()) {
            std::cout << "Successfully deleted the job." << std::endl;
        }
        else {
            std::cerr << "Error deleting the job. " << outcome.GetError().GetMessage()
                      << std::endl;
            result = false;
        }
    }

    // 14. Delete a database.
    if (!database.empty()) {
        Aws::Glue::Model::DeleteDatabaseRequest request;
        request.SetName(database);

        Aws::Glue::Model::DeleteDatabaseOutcome outcome = client.DeleteDatabase(
                request);

        if (outcome.IsSuccess()) {
            std::cout << "Successfully deleted the database." << std::endl;
        }
        else {
            std::cerr << "Error deleting database. " << outcome.GetError().GetMessage()
                      << std::endl;
            result = false;
        }
    }

    // 15. Delete a crawler.
    if (!crawler.empty()) {
        Aws::Glue::Model::DeleteCrawlerRequest request;
        request.SetName(crawler);

        Aws::Glue::Model::DeleteCrawlerOutcome outcome = client.DeleteCrawler(request);

        if (outcome.IsSuccess()) {
            std::cout << "Successfully deleted the crawler." << std::endl;
        }
        else {
            std::cerr << "Error deleting the crawler. "
                      << outcome.GetError().GetMessage() << std::endl;
            result = false;
        }
    }

    // 16. Delete the job script and run data from the S3 bucket.
    result &= AwsDoc::Glue::deleteAllObjectsInS3Bucket(bucketName,
                                                       clientConfig);
    return result;
}

//! Routine which uploads a file to an S3 bucket.
/*!
 \\sa uploadFile()
 \param bucketName: An S3 bucket created in the setup.
 \param filePath: The path of the file to upload.
 \param fileName The name for the uploaded file.
 \param clientConfig: AWS client configuration.
 \return bool: Successful completion.
 */
bool
AwsDoc::Glue::uploadFile(const Aws::String &bucketName,
                         const Aws::String &filePath,
                         const Aws::String &fileName,
                         const Aws::Client::ClientConfiguration &clientConfig) {
    Aws::S3::S3Client s3_client(clientConfig);

    Aws::S3::Model::PutObjectRequest request;
    request.SetBucket(bucketName);
    request.SetKey(fileName);

    std::shared_ptr<Aws::IOStream> inputData =
            Aws::MakeShared<Aws::FStream>("SampleAllocationTag",
                                          filePath.c_str(),
                                          std::ios_base::in | std::ios_base::binary);

    if (!*inputData) {
        std::cerr << "Error unable to read file " << filePath << std::endl;
        return false;
    }

    request.SetBody(inputData);

    Aws::S3::Model::PutObjectOutcome outcome =
            s3_client.PutObject(request);

    if (!outcome.IsSuccess()) {
        std::cerr << "Error: PutObject: " <<
                  outcome.GetError().GetMessage() << std::endl;
    }
    else {
        std::cout << "Added object '" << filePath << "' to bucket '"
                  << bucketName << "'." << std::endl;
    }

    return outcome.IsSuccess();
}

//! Routine which deletes all objects in an S3 bucket.
/*!
 \\sa deleteAllObjectsInS3Bucket()
 \param bucketName: The S3 bucket name.
 \param clientConfig: AWS client configuration.
 \return bool: Successful completion.
 */
bool AwsDoc::Glue::deleteAllObjectsInS3Bucket(const Aws::String &bucketName,
                                              const Aws::Client::ClientConfiguration &clientConfig) {
    Aws::S3::S3Client client(clientConfig);
    Aws::S3::Model::ListObjectsV2Request listObjectsRequest;
    listObjectsRequest.SetBucket(bucketName);

    Aws::String continuationToken; // Used for pagination.
    bool result = true;
    do {
        if (!continuationToken.empty()) {
            listObjectsRequest.SetContinuationToken(continuationToken);
        }

        Aws::S3::Model::ListObjectsV2Outcome listObjectsOutcome = client.ListObjectsV2(
                listObjectsRequest);

        if (listObjectsOutcome.IsSuccess()) {
            const std::vector<Aws::S3::Model::Object> &objects = listObjectsOutcome.GetResult().GetContents();
            if (!objects.empty()) {
                Aws::S3::Model::DeleteObjectsRequest deleteObjectsRequest;
                deleteObjectsRequest.SetBucket(bucketName);

                std::vector<Aws::S3::Model::ObjectIdentifier> objectIdentifiers;
                for (const Aws::S3::Model::Object &object: objects) {
                    objectIdentifiers.push_back(
                            Aws::S3::Model::ObjectIdentifier().WithKey(
                                    object.GetKey()));
                }
                Aws::S3::Model::Delete objectsDelete;
                objectsDelete.SetObjects(objectIdentifiers);
                objectsDelete.SetQuiet(true);
                deleteObjectsRequest.SetDelete(objectsDelete);

                Aws::S3::Model::DeleteObjectsOutcome deleteObjectsOutcome =
                        client.DeleteObjects(deleteObjectsRequest);

                if (!deleteObjectsOutcome.IsSuccess()) {
                    std::cerr << "Error deleting objects. " <<
                              deleteObjectsOutcome.GetError().GetMessage() << std::endl;
                    result = false;
                    break;
                }
                else {
                    std::cout << "Successfully deleted the objects." << std::endl;

                }
            }
            else {
                std::cout << "No objects to delete in '" << bucketName << "'."
                          << std::endl;
            }

            continuationToken = listObjectsOutcome.GetResult().GetNextContinuationToken();
        }
        else {
            std::cerr << "Error listing objects. "
                      << listObjectsOutcome.GetError().GetMessage() << std::endl;
            result = false;
            break;
        }
    } while (!continuationToken.empty());

    return result;
}

//! Routine which retrieves an object from an S3 bucket.
/*!
 \\sa getObjectFromBucket()
 \param bucketName: The S3 bucket name.
 \param objectKey: The object's name.
 \param objectStream: A stream to receive the retrieved data.
 \param clientConfig: AWS client configuration.
 \return bool: Successful completion.
 */
bool AwsDoc::Glue::getObjectFromBucket(const Aws::String &bucketName,
                                       const Aws::String &objectKey,
                                       std::ostream &objectStream,
                                       const Aws::Client::ClientConfiguration &clientConfig) {
    Aws::S3::S3Client client(clientConfig);
    Aws::S3::Model::GetObjectRequest request;
    request.SetBucket(bucketName);
    request.SetKey(objectKey);

    Aws::S3::Model::GetObjectOutcome outcome = client.GetObject(request);


    if (outcome.IsSuccess()) {
        std::cout << "Successfully retrieved '" << objectKey << "'." << std::endl;
        auto &body = outcome.GetResult().GetBody();
        objectStream << body.rdbuf();
    }
    else {
        std::cerr << "Error retrieving object. " << outcome.GetError().GetMessage()
                  << std::endl;
    }

    return outcome.IsSuccess();
}

• Pour plus de détails sur l’API, consultez les rubriques suivantes dans la Référence des API du kit AWS SDK pour C++.

  • CreateCrawler

  • CreateJob

  • DeleteCrawler

  • DeleteDatabase

  • DeleteJob

  • DeleteTable

  • GetCrawler

  • GetDatabase

  • GetDatabases

  • GetJob

  • GetJobRun

  • GetJobRuns

  • GetTables

  • ListJobs

  • StartCrawler

  • StartJobRun

Actions

CreateCrawler

L’exemple de code suivant montre comment utiliser CreateCrawler.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::S3Target s3Target;
        s3Target.SetPath("s3://crawler-public-us-east-1/flight/2016/csv");
        Aws::Glue::Model::CrawlerTargets crawlerTargets;
        crawlerTargets.AddS3Targets(s3Target);

        Aws::Glue::Model::CreateCrawlerRequest request;
        request.SetTargets(crawlerTargets);
        request.SetName(CRAWLER_NAME);
        request.SetDatabaseName(CRAWLER_DATABASE_NAME);
        request.SetTablePrefix(CRAWLER_DATABASE_PREFIX);
        request.SetRole(roleArn);

        Aws::Glue::Model::CreateCrawlerOutcome outcome = client.CreateCrawler(request);

        if (outcome.IsSuccess()) {
            std::cout << "Successfully created the crawler." << std::endl;
        }
        else {
            std::cerr << "Error creating a crawler. " << outcome.GetError().GetMessage()
                      << std::endl;
            deleteAssets("", CRAWLER_DATABASE_NAME, "", bucketName, clientConfig);
            return false;
        }

• Pour les détails de l’API, veuillez consulter CreateCrawler dans la Référence d’API AWS SDK pour C++.

CreateJob

L’exemple de code suivant montre comment utiliser CreateJob.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::CreateJobRequest request;
        request.SetName(JOB_NAME);
        request.SetRole(roleArn);
        request.SetGlueVersion(GLUE_VERSION);

        Aws::Glue::Model::JobCommand command;
        command.SetName(JOB_COMMAND_NAME);
        command.SetPythonVersion(JOB_PYTHON_VERSION);
        command.SetScriptLocation(
                Aws::String("s3://") + bucketName + "/" + PYTHON_SCRIPT);
        request.SetCommand(command);

        Aws::Glue::Model::CreateJobOutcome outcome = client.CreateJob(request);

        if (outcome.IsSuccess()) {
            std::cout << "Successfully created the job." << std::endl;
        }
        else {
            std::cerr << "Error creating the job. " << outcome.GetError().GetMessage()
                      << std::endl;
            deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, "", bucketName,
                         clientConfig);
            return false;
        }

• Pour les détails de l’API, veuillez consulter CreateJob dans la Référence d’API AWS SDK pour C++.

DeleteCrawler

L’exemple de code suivant montre comment utiliser DeleteCrawler.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::DeleteCrawlerRequest request;
        request.SetName(crawler);

        Aws::Glue::Model::DeleteCrawlerOutcome outcome = client.DeleteCrawler(request);

        if (outcome.IsSuccess()) {
            std::cout << "Successfully deleted the crawler." << std::endl;
        }
        else {
            std::cerr << "Error deleting the crawler. "
                      << outcome.GetError().GetMessage() << std::endl;
            result = false;
        }

• Pour les détails de l’API, veuillez consulter DeleteCrawler dans la Référence d’API AWS SDK pour C++.

DeleteDatabase

L’exemple de code suivant montre comment utiliser DeleteDatabase.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::DeleteDatabaseRequest request;
        request.SetName(database);

        Aws::Glue::Model::DeleteDatabaseOutcome outcome = client.DeleteDatabase(
                request);

        if (outcome.IsSuccess()) {
            std::cout << "Successfully deleted the database." << std::endl;
        }
        else {
            std::cerr << "Error deleting database. " << outcome.GetError().GetMessage()
                      << std::endl;
            result = false;
        }

• Pour les détails de l’API, veuillez consulter DeleteDatabase dans la Référence d’API AWS SDK pour C++.

DeleteJob

L’exemple de code suivant montre comment utiliser DeleteJob.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::DeleteJobRequest request;
        request.SetJobName(job);

        Aws::Glue::Model::DeleteJobOutcome outcome = client.DeleteJob(request);


        if (outcome.IsSuccess()) {
            std::cout << "Successfully deleted the job." << std::endl;
        }
        else {
            std::cerr << "Error deleting the job. " << outcome.GetError().GetMessage()
                      << std::endl;
            result = false;
        }

• Pour les détails de l’API, veuillez consulter DeleteJob dans la Référence d’API AWS SDK pour C++.

GetCrawler

L’exemple de code suivant montre comment utiliser GetCrawler.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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;
        }

• Pour les détails de l’API, veuillez consulter GetCrawler dans la Référence d’API AWS SDK pour C++.

GetDatabase

L’exemple de code suivant montre comment utiliser GetDatabase.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::GetDatabaseRequest request;
        request.SetName(CRAWLER_DATABASE_NAME);

        Aws::Glue::Model::GetDatabaseOutcome outcome = client.GetDatabase(request);

        if (outcome.IsSuccess()) {
            const Aws::Glue::Model::Database &database = outcome.GetResult().GetDatabase();

            std::cout << "Successfully retrieve the database\n" <<
                      database.Jsonize().View().WriteReadable() << "'." << std::endl;
        }
        else {
            std::cerr << "Error getting the database.  "
                      << outcome.GetError().GetMessage() << std::endl;
            deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, "", bucketName,
                         clientConfig);
            return false;
        }

• Pour les détails de l’API, veuillez consulter GetDatabase dans la Référence d’API AWS SDK pour C++.

GetJobRun

L’exemple de code suivant montre comment utiliser GetJobRun.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::GetJobRunRequest jobRunRequest;
        jobRunRequest.SetJobName(jobName);
        jobRunRequest.SetRunId(jobRunID);

        Aws::Glue::Model::GetJobRunOutcome jobRunOutcome = client.GetJobRun(
                jobRunRequest);

        if (jobRunOutcome.IsSuccess()) {
            std::cout << "Displaying the job run JSON description." << std::endl;
            std::cout
                    << jobRunOutcome.GetResult().GetJobRun().Jsonize().View().WriteReadable()
                    << std::endl;
        }
        else {
            std::cerr << "Error get a job run. "
                      << jobRunOutcome.GetError().GetMessage()
                      << std::endl;
        }

• Pour les détails de l’API, veuillez consulter GetJobRun dans la Référence d’API AWS SDK pour C++.

GetJobRuns

L’exemple de code suivant montre comment utiliser GetJobRuns.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::GetJobRunsRequest getJobRunsRequest;
        getJobRunsRequest.SetJobName(jobName);

        Aws::String nextToken; // Used for pagination.
        std::vector<Aws::Glue::Model::JobRun> allJobRuns;
        do {
            if (!nextToken.empty()) {
                getJobRunsRequest.SetNextToken(nextToken);
            }
            Aws::Glue::Model::GetJobRunsOutcome jobRunsOutcome = client.GetJobRuns(
                    getJobRunsRequest);

            if (jobRunsOutcome.IsSuccess()) {
                const std::vector<Aws::Glue::Model::JobRun> &jobRuns = jobRunsOutcome.GetResult().GetJobRuns();
                allJobRuns.insert(allJobRuns.end(), jobRuns.begin(), jobRuns.end());

                nextToken = jobRunsOutcome.GetResult().GetNextToken();
            }
            else {
                std::cerr << "Error getting job runs. "
                          << jobRunsOutcome.GetError().GetMessage()
                          << std::endl;
                break;
            }
        } while (!nextToken.empty());

• Pour les détails de l’API, veuillez consulter GetJobRuns dans la Référence d’API AWS SDK pour C++.

GetTables

L’exemple de code suivant montre comment utiliser GetTables.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::GetTablesRequest request;
        request.SetDatabaseName(CRAWLER_DATABASE_NAME);
        std::vector<Aws::Glue::Model::Table> all_tables;
        Aws::String nextToken; // Used for pagination.
        do {
            Aws::Glue::Model::GetTablesOutcome outcome = client.GetTables(request);

            if (outcome.IsSuccess()) {
                const std::vector<Aws::Glue::Model::Table> &tables = outcome.GetResult().GetTableList();
                all_tables.insert(all_tables.end(), tables.begin(), tables.end());
                nextToken = outcome.GetResult().GetNextToken();
            }
            else {
                std::cerr << "Error getting the tables. "
                          << outcome.GetError().GetMessage()
                          << std::endl;
                deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, "", bucketName,
                             clientConfig);
                return false;
            }
        } while (!nextToken.empty());

        std::cout << "The database contains " << all_tables.size()
                  << (all_tables.size() == 1 ?
                      " table." : "tables.") << std::endl;
        std::cout << "Here is a list of the tables in the database.";
        for (size_t index = 0; index < all_tables.size(); ++index) {
            std::cout << "    " << index + 1 << ":  " << all_tables[index].GetName()
                      << std::endl;
        }

        if (!all_tables.empty()) {
            int tableIndex = askQuestionForIntRange(
                    "Enter an index to display the database detail ",
                    1, static_cast<int>(all_tables.size()));
            std::cout << all_tables[tableIndex - 1].Jsonize().View().WriteReadable()
                      << std::endl;

            tableName = all_tables[tableIndex - 1].GetName();
        }

• Pour les détails de l’API, veuillez consulter GetTables dans la Référence d’API AWS SDK pour C++.

ListJobs

L’exemple de code suivant montre comment utiliser ListJobs.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::ListJobsRequest listJobsRequest;

        Aws::String nextToken;
        std::vector<Aws::String> allJobNames;

        do {
            if (!nextToken.empty()) {
                listJobsRequest.SetNextToken(nextToken);
            }
            Aws::Glue::Model::ListJobsOutcome listRunsOutcome = client.ListJobs(
                    listJobsRequest);

            if (listRunsOutcome.IsSuccess()) {
                const std::vector<Aws::String> &jobNames = listRunsOutcome.GetResult().GetJobNames();
                allJobNames.insert(allJobNames.end(), jobNames.begin(), jobNames.end());
                nextToken = listRunsOutcome.GetResult().GetNextToken();
            }
            else {
                std::cerr << "Error listing jobs. "
                          << listRunsOutcome.GetError().GetMessage()
                          << std::endl;
            }
        } while (!nextToken.empty());

• Pour les détails de l’API, veuillez consulter ListJobs dans la Référence d’API AWS SDK pour C++.

StartCrawler

L’exemple de code suivant montre comment utiliser StartCrawler.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::StartCrawlerRequest request;
        request.SetName(CRAWLER_NAME);

        Aws::Glue::Model::StartCrawlerOutcome outcome = client.StartCrawler(request);


        if (outcome.IsSuccess() || (Aws::Glue::GlueErrors::CRAWLER_RUNNING ==
                                    outcome.GetError().GetErrorType())) {
            if (!outcome.IsSuccess()) {
                std::cout << "Crawler was already started." << std::endl;
            }
            else {
                std::cout << "Successfully started crawler." << std::endl;
            }

            std::cout << "This may take a while to run." << std::endl;

            Aws::Glue::Model::CrawlerState crawlerState = Aws::Glue::Model::CrawlerState::NOT_SET;
            int iterations = 0;
            while (Aws::Glue::Model::CrawlerState::READY != crawlerState) {
                std::this_thread::sleep_for(std::chrono::seconds(1));
                ++iterations;
                if ((iterations % 10) == 0) { // Log status every 10 seconds.
                    std::cout << "Crawler status " <<
                              Aws::Glue::Model::CrawlerStateMapper::GetNameForCrawlerState(
                                      crawlerState)
                              << ". After " << iterations
                              << " seconds elapsed."
                              << std::endl;
                }
                Aws::Glue::Model::GetCrawlerRequest getCrawlerRequest;
                getCrawlerRequest.SetName(CRAWLER_NAME);

                Aws::Glue::Model::GetCrawlerOutcome getCrawlerOutcome = client.GetCrawler(
                        getCrawlerRequest);

                if (getCrawlerOutcome.IsSuccess()) {
                    crawlerState = getCrawlerOutcome.GetResult().GetCrawler().GetState();
                }
                else {
                    std::cerr << "Error getting crawler.  "
                              << getCrawlerOutcome.GetError().GetMessage() << std::endl;
                    break;
                }
            }

            if (Aws::Glue::Model::CrawlerState::READY == crawlerState) {
                std::cout << "Crawler finished running after " << iterations
                          << " seconds."
                          << std::endl;
            }
        }
        else {
            std::cerr << "Error starting a crawler.  "
                      << outcome.GetError().GetMessage()
                      << std::endl;

            deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, "", bucketName,
                         clientConfig);
            return false;
        }

• Pour les détails de l’API, veuillez consulter StartCrawler dans la Référence d’API AWS SDK pour C++.

StartJobRun

L’exemple de code suivant montre comment utiliser StartJobRun.

SDK pour C++

Note

Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le référentiel d’exemples de code AWS.

        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::StartJobRunRequest request;
        request.SetJobName(JOB_NAME);

        Aws::Map<Aws::String, Aws::String> arguments;
        arguments["--input_database"] = CRAWLER_DATABASE_NAME;
        arguments["--input_table"] = tableName;
        arguments["--output_bucket_url"] = Aws::String("s3://") + bucketName + "/";
        request.SetArguments(arguments);

        Aws::Glue::Model::StartJobRunOutcome outcome = client.StartJobRun(request);

        if (outcome.IsSuccess()) {
            std::cout << "Successfully started the job." << std::endl;

            Aws::String jobRunId = outcome.GetResult().GetJobRunId();

            int iterator = 0;
            bool done = false;
            while (!done) {
                ++iterator;
                std::this_thread::sleep_for(std::chrono::seconds(1));
                Aws::Glue::Model::GetJobRunRequest jobRunRequest;
                jobRunRequest.SetJobName(JOB_NAME);
                jobRunRequest.SetRunId(jobRunId);

                Aws::Glue::Model::GetJobRunOutcome jobRunOutcome = client.GetJobRun(
                        jobRunRequest);

                if (jobRunOutcome.IsSuccess()) {
                    const Aws::Glue::Model::JobRun &jobRun = jobRunOutcome.GetResult().GetJobRun();
                    Aws::Glue::Model::JobRunState jobRunState = jobRun.GetJobRunState();

                    if ((jobRunState == Aws::Glue::Model::JobRunState::STOPPED) ||
                        (jobRunState == Aws::Glue::Model::JobRunState::FAILED) ||
                        (jobRunState == Aws::Glue::Model::JobRunState::TIMEOUT)) {
                        std::cerr << "Error running job. "
                                  << jobRun.GetErrorMessage()
                                  << std::endl;
                        deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, JOB_NAME,
                                     bucketName,
                                     clientConfig);
                        return false;
                    }
                    else if (jobRunState ==
                             Aws::Glue::Model::JobRunState::SUCCEEDED) {
                        std::cout << "Job run succeeded after  " << iterator <<
                                  " seconds elapsed." << std::endl;
                        done = true;
                    }
                    else if ((iterator % 10) == 0) { // Log status every 10 seconds.
                        std::cout << "Job run status " <<
                                  Aws::Glue::Model::JobRunStateMapper::GetNameForJobRunState(
                                          jobRunState) <<
                                  ". " << iterator <<
                                  " seconds elapsed." << std::endl;
                    }
                }
                else {
                    std::cerr << "Error retrieving job run state. "
                              << jobRunOutcome.GetError().GetMessage()
                              << std::endl;
                    deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, JOB_NAME,
                                 bucketName, clientConfig);
                    return false;
                }
            }
        }
        else {
            std::cerr << "Error starting a job. " << outcome.GetError().GetMessage()
                      << std::endl;
            deleteAssets(CRAWLER_NAME, CRAWLER_DATABASE_NAME, JOB_NAME, bucketName,
                         clientConfig);
            return false;
        }

• Pour les détails de l’API, veuillez consulter StartJobRun dans la Référence d’API AWS SDK pour C++.