Ejemplos de uso de S3 Glacier SDK para Java 2.x

Los siguientes ejemplos de código muestran cómo realizar acciones e implementar escenarios comunes mediante el AWS SDK for Java 2.x uso de S3 Glacier.

Las acciones son extractos de código de programas más grandes y deben ejecutarse en contexto. Mientras las acciones muestran cómo llamar a las funciones de servicio individuales, es posible ver las acciones en contexto en los escenarios relacionados.

Cada ejemplo incluye un enlace al código fuente completo, donde puede encontrar instrucciones sobre cómo configurar y ejecutar el código en su contexto.

Temas

Acciones

Acciones

En el siguiente ejemplo de código se muestra cómo usarloCreateVault.

SDKpara Java 2.x

nota

Hay más información. GitHub Busque el ejemplo completo y aprenda a configurar y ejecutar en el Repositorio de ejemplos de código de AWS.


import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.glacier.GlacierClient;
import software.amazon.awssdk.services.glacier.model.CreateVaultRequest;
import software.amazon.awssdk.services.glacier.model.CreateVaultResponse;
import software.amazon.awssdk.services.glacier.model.GlacierException;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class CreateVault {
    public static void main(String[] args) {
        final String usage = """

                Usage:    <vaultName>

                Where:
                   vaultName - The name of the vault to create.

                """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String vaultName = args[0];
        GlacierClient glacier = GlacierClient.builder()
                .region(Region.US_EAST_1)
                .build();

        createGlacierVault(glacier, vaultName);
        glacier.close();
    }

    public static void createGlacierVault(GlacierClient glacier, String vaultName) {
        try {
            CreateVaultRequest vaultRequest = CreateVaultRequest.builder()
                    .vaultName(vaultName)
                    .build();

            CreateVaultResponse createVaultResult = glacier.createVault(vaultRequest);
            System.out.println("The URI of the new vault is " + createVaultResult.location());

        } catch (GlacierException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

Para API obtener más información, consulte CreateVaultla AWS SDK for Java 2.x APIReferencia.

El siguiente ejemplo de código muestra cómo usarloDeleteArchive.

SDKpara Java 2.x

nota

Hay más información. GitHub Busque el ejemplo completo y aprenda a configurar y ejecutar en el Repositorio de ejemplos de código de AWS.


import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.glacier.GlacierClient;
import software.amazon.awssdk.services.glacier.model.DeleteArchiveRequest;
import software.amazon.awssdk.services.glacier.model.GlacierException;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class DeleteArchive {
    public static void main(String[] args) {
        final String usage = """

                Usage:    <vaultName> <accountId> <archiveId>

                Where:
                   vaultName - The name of the vault that contains the archive to delete.
                   accountId - The account ID value.
                   archiveId - The archive ID value.
                """;

        if (args.length != 3) {
            System.out.println(usage);
            System.exit(1);
        }

        String vaultName = args[0];
        String accountId = args[1];
        String archiveId = args[2];
        GlacierClient glacier = GlacierClient.builder()
                .region(Region.US_EAST_1)
                .build();

        deleteGlacierArchive(glacier, vaultName, accountId, archiveId);
        glacier.close();
    }

    public static void deleteGlacierArchive(GlacierClient glacier, String vaultName, String accountId,
            String archiveId) {
        try {
            DeleteArchiveRequest delArcRequest = DeleteArchiveRequest.builder()
                    .vaultName(vaultName)
                    .accountId(accountId)
                    .archiveId(archiveId)
                    .build();

            glacier.deleteArchive(delArcRequest);
            System.out.println("The archive was deleted.");

        } catch (GlacierException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

Para API obtener más información, consulte DeleteArchivela AWS SDK for Java 2.x APIReferencia.

El siguiente ejemplo de código muestra cómo usarloDeleteVault.

SDKpara Java 2.x

nota

Hay más información. GitHub Busque el ejemplo completo y aprenda a configurar y ejecutar en el Repositorio de ejemplos de código de AWS.


import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.glacier.GlacierClient;
import software.amazon.awssdk.services.glacier.model.DeleteVaultRequest;
import software.amazon.awssdk.services.glacier.model.GlacierException;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class DeleteVault {
    public static void main(String[] args) {

        final String usage = """

                Usage:    <vaultName>

                Where:
                   vaultName - The name of the vault to delete.\s
                """;

        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }

        String vaultName = args[0];
        GlacierClient glacier = GlacierClient.builder()
                .region(Region.US_EAST_1)
                .build();

        deleteGlacierVault(glacier, vaultName);
        glacier.close();
    }

    public static void deleteGlacierVault(GlacierClient glacier, String vaultName) {
        try {
            DeleteVaultRequest delVaultRequest = DeleteVaultRequest.builder()
                    .vaultName(vaultName)
                    .build();

            glacier.deleteVault(delVaultRequest);
            System.out.println("The vault was deleted!");

        } catch (GlacierException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

Para API obtener más información, consulte DeleteVaultla AWS SDK for Java 2.x APIReferencia.

El siguiente ejemplo de código muestra cómo usarloInitiateJob.

SDKpara Java 2.x

nota

Hay más información. GitHub Busque el ejemplo completo y aprenda a configurar y ejecutar en el Repositorio de ejemplos de código de AWS.

Recupera el inventario de una bóveda.


import software.amazon.awssdk.core.ResponseBytes;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.glacier.GlacierClient;
import software.amazon.awssdk.services.glacier.model.JobParameters;
import software.amazon.awssdk.services.glacier.model.InitiateJobResponse;
import software.amazon.awssdk.services.glacier.model.GlacierException;
import software.amazon.awssdk.services.glacier.model.InitiateJobRequest;
import software.amazon.awssdk.services.glacier.model.DescribeJobRequest;
import software.amazon.awssdk.services.glacier.model.DescribeJobResponse;
import software.amazon.awssdk.services.glacier.model.GetJobOutputRequest;
import software.amazon.awssdk.services.glacier.model.GetJobOutputResponse;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class ArchiveDownload {
    public static void main(String[] args) {

        final String usage = """

                Usage:    <vaultName> <accountId> <path>

                Where:
                   vaultName - The name of the vault.
                   accountId - The account ID value.
                   path - The path where the file is written to.
                """;

        if (args.length != 3) {
            System.out.println(usage);
            System.exit(1);
        }

        String vaultName = args[0];
        String accountId = args[1];
        String path = args[2];
        GlacierClient glacier = GlacierClient.builder()
                .region(Region.US_EAST_1)
                .build();

        String jobNum = createJob(glacier, vaultName, accountId);
        checkJob(glacier, jobNum, vaultName, accountId, path);
        glacier.close();
    }

    public static String createJob(GlacierClient glacier, String vaultName, String accountId) {
        try {
            JobParameters job = JobParameters.builder()
                    .type("inventory-retrieval")
                    .build();

            InitiateJobRequest initJob = InitiateJobRequest.builder()
                    .jobParameters(job)
                    .accountId(accountId)
                    .vaultName(vaultName)
                    .build();

            InitiateJobResponse response = glacier.initiateJob(initJob);
            System.out.println("The job ID is: " + response.jobId());
            System.out.println("The relative URI path of the job is: " + response.location());
            return response.jobId();

        } catch (GlacierException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);

        }
        return "";
    }

    // Poll S3 Glacier = Polling a Job may take 4-6 hours according to the
    // Documentation.
    public static void checkJob(GlacierClient glacier, String jobId, String name, String account, String path) {
        try {
            boolean finished = false;
            String jobStatus;
            int yy = 0;

            while (!finished) {
                DescribeJobRequest jobRequest = DescribeJobRequest.builder()
                        .jobId(jobId)
                        .accountId(account)
                        .vaultName(name)
                        .build();

                DescribeJobResponse response = glacier.describeJob(jobRequest);
                jobStatus = response.statusCodeAsString();

                if (jobStatus.compareTo("Succeeded") == 0)
                    finished = true;
                else {
                    System.out.println(yy + " status is: " + jobStatus);
                    Thread.sleep(1000);
                }
                yy++;
            }

            System.out.println("Job has Succeeded");
            GetJobOutputRequest jobOutputRequest = GetJobOutputRequest.builder()
                    .jobId(jobId)
                    .vaultName(name)
                    .accountId(account)
                    .build();

            ResponseBytes<GetJobOutputResponse> objectBytes = glacier.getJobOutputAsBytes(jobOutputRequest);
            // Write the data to a local file.
            byte[] data = objectBytes.asByteArray();
            File myFile = new File(path);
            OutputStream os = new FileOutputStream(myFile);
            os.write(data);
            System.out.println("Successfully obtained bytes from a Glacier vault");
            os.close();

        } catch (GlacierException | InterruptedException | IOException e) {
            System.out.println(e.getMessage());
            System.exit(1);

        }
    }
}

Para API obtener más información, consulte InitiateJobla AWS SDK for Java 2.x APIReferencia.

El siguiente ejemplo de código muestra cómo usarloListVaults.

SDKpara Java 2.x

nota

Hay más información. GitHub Busque el ejemplo completo y aprenda a configurar y ejecutar en el Repositorio de ejemplos de código de AWS.


import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.glacier.model.ListVaultsRequest;
import software.amazon.awssdk.services.glacier.model.ListVaultsResponse;
import software.amazon.awssdk.services.glacier.GlacierClient;
import software.amazon.awssdk.services.glacier.model.DescribeVaultOutput;
import software.amazon.awssdk.services.glacier.model.GlacierException;
import java.util.List;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class ListVaults {
    public static void main(String[] args) {
        GlacierClient glacier = GlacierClient.builder()
                .region(Region.US_EAST_1)
                .build();

        listAllVault(glacier);
        glacier.close();
    }

    public static void listAllVault(GlacierClient glacier) {
        boolean listComplete = false;
        String newMarker = null;
        int totalVaults = 0;
        System.out.println("Your Amazon Glacier vaults:");
        try {
            while (!listComplete) {
                ListVaultsResponse response = null;
                if (newMarker != null) {
                    ListVaultsRequest request = ListVaultsRequest.builder()
                            .marker(newMarker)
                            .build();

                    response = glacier.listVaults(request);
                } else {
                    ListVaultsRequest request = ListVaultsRequest.builder()
                            .build();
                    response = glacier.listVaults(request);
                }

                List<DescribeVaultOutput> vaultList = response.vaultList();
                for (DescribeVaultOutput v : vaultList) {
                    totalVaults += 1;
                    System.out.println("* " + v.vaultName());
                }

                // Check for further results.
                newMarker = response.marker();
                if (newMarker == null) {
                    listComplete = true;
                }
            }

            if (totalVaults == 0) {
                System.out.println("No vaults found.");
            }

        } catch (GlacierException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

Para API obtener más información, consulte ListVaultsla AWS SDK for Java 2.x APIReferencia.

El siguiente ejemplo de código muestra cómo usarloUploadArchive.

SDKpara Java 2.x

nota

Hay más información. GitHub Busque el ejemplo completo y aprenda a configurar y ejecutar en el Repositorio de ejemplos de código de AWS.


import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.glacier.GlacierClient;
import software.amazon.awssdk.services.glacier.model.UploadArchiveRequest;
import software.amazon.awssdk.services.glacier.model.UploadArchiveResponse;
import software.amazon.awssdk.services.glacier.model.GlacierException;
import java.io.File;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.io.FileInputStream;
import java.io.IOException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class UploadArchive {

    static final int ONE_MB = 1024 * 1024;

    public static void main(String[] args) {
        final String usage = """

                Usage:   <strPath> <vaultName>\s

                Where:
                   strPath - The path to the archive to upload (for example, C:\\AWS\\test.pdf).
                   vaultName - The name of the vault.
                """;

        if (args.length != 2) {
            System.out.println(usage);
            System.exit(1);
        }

        String strPath = args[0];
        String vaultName = args[1];
        File myFile = new File(strPath);
        Path path = Paths.get(strPath);
        GlacierClient glacier = GlacierClient.builder()
                .region(Region.US_EAST_1)
                .build();

        String archiveId = uploadContent(glacier, path, vaultName, myFile);
        System.out.println("The ID of the archived item is " + archiveId);
        glacier.close();
    }

    public static String uploadContent(GlacierClient glacier, Path path, String vaultName, File myFile) {
        // Get an SHA-256 tree hash value.
        String checkVal = computeSHA256(myFile);
        try {
            UploadArchiveRequest uploadRequest = UploadArchiveRequest.builder()
                    .vaultName(vaultName)
                    .checksum(checkVal)
                    .build();

            UploadArchiveResponse res = glacier.uploadArchive(uploadRequest, path);
            return res.archiveId();

        } catch (GlacierException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
        return "";
    }

    private static String computeSHA256(File inputFile) {
        try {
            byte[] treeHash = computeSHA256TreeHash(inputFile);
            System.out.printf("SHA-256 tree hash = %s\n", toHex(treeHash));
            return toHex(treeHash);

        } catch (IOException ioe) {
            System.err.format("Exception when reading from file %s: %s", inputFile, ioe.getMessage());
            System.exit(-1);

        } catch (NoSuchAlgorithmException nsae) {
            System.err.format("Cannot locate MessageDigest algorithm for SHA-256: %s", nsae.getMessage());
            System.exit(-1);
        }
        return "";
    }

    public static byte[] computeSHA256TreeHash(File inputFile) throws IOException,
            NoSuchAlgorithmException {

        byte[][] chunkSHA256Hashes = getChunkSHA256Hashes(inputFile);
        return computeSHA256TreeHash(chunkSHA256Hashes);
    }

    /**
     * Computes an SHA256 checksum for each 1 MB chunk of the input file. This
     * includes the checksum for the last chunk, even if it's smaller than 1 MB.
     */
    public static byte[][] getChunkSHA256Hashes(File file) throws IOException,
            NoSuchAlgorithmException {

        MessageDigest md = MessageDigest.getInstance("SHA-256");
        long numChunks = file.length() / ONE_MB;
        if (file.length() % ONE_MB > 0) {
            numChunks++;
        }

        if (numChunks == 0) {
            return new byte[][] { md.digest() };
        }

        byte[][] chunkSHA256Hashes = new byte[(int) numChunks][];
        FileInputStream fileStream = null;

        try {
            fileStream = new FileInputStream(file);
            byte[] buff = new byte[ONE_MB];

            int bytesRead;
            int idx = 0;

            while ((bytesRead = fileStream.read(buff, 0, ONE_MB)) > 0) {
                md.reset();
                md.update(buff, 0, bytesRead);
                chunkSHA256Hashes[idx++] = md.digest();
            }

            return chunkSHA256Hashes;

        } finally {
            if (fileStream != null) {
                try {
                    fileStream.close();
                } catch (IOException ioe) {
                    System.err.printf("Exception while closing %s.\n %s", file.getName(),
                            ioe.getMessage());
                }
            }
        }
    }

    /**
     * Computes the SHA-256 tree hash for the passed array of 1 MB chunk
     * checksums.
     */
    public static byte[] computeSHA256TreeHash(byte[][] chunkSHA256Hashes)
            throws NoSuchAlgorithmException {

        MessageDigest md = MessageDigest.getInstance("SHA-256");
        byte[][] prevLvlHashes = chunkSHA256Hashes;
        while (prevLvlHashes.length > 1) {
            int len = prevLvlHashes.length / 2;
            if (prevLvlHashes.length % 2 != 0) {
                len++;
            }

            byte[][] currLvlHashes = new byte[len][];
            int j = 0;
            for (int i = 0; i < prevLvlHashes.length; i = i + 2, j++) {

                // If there are at least two elements remaining.
                if (prevLvlHashes.length - i > 1) {

                    // Calculate a digest of the concatenated nodes.
                    md.reset();
                    md.update(prevLvlHashes[i]);
                    md.update(prevLvlHashes[i + 1]);
                    currLvlHashes[j] = md.digest();

                } else { // Take care of the remaining odd chunk
                    currLvlHashes[j] = prevLvlHashes[i];
                }
            }

            prevLvlHashes = currLvlHashes;
        }

        return prevLvlHashes[0];
    }

    /**
     * Returns the hexadecimal representation of the input byte array
     */
    public static String toHex(byte[] data) {
        StringBuilder sb = new StringBuilder(data.length * 2);
        for (byte datum : data) {
            String hex = Integer.toHexString(datum & 0xFF);

            if (hex.length() == 1) {
                // Append leading zero.
                sb.append("0");
            }
            sb.append(hex);
        }
        return sb.toString().toLowerCase();
    }
}

Para API obtener más información, consulte UploadArchivela AWS SDK for Java 2.x APIReferencia.

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