Java

Amazon Glacier Upload Archive from In-Memory Data

See more Amazon Glacier Examples

Demonstrates how to add an archive to a vault from data in memory.

Note: This example requires Chilkat v9.5.0.78 or greater.

Chilkat2 Java

import com.chilkatsoft.chilkat2.AuthAws;
import com.chilkatsoft.chilkat2.BinData;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Crypt2;
import com.chilkatsoft.chilkat2.Rest;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Rest rest = new Rest();

        // Connect to the Amazon AWS REST server in the desired region.
        boolean bTls = true;
        int port = 443;
        boolean bAutoReconnect = true;
        rest.connect("glacier.us-west-2.amazonaws.com", port, bTls, bAutoReconnect);

        // Provide AWS credentials.
        AuthAws authAws = new AuthAws();
        authAws.setAccessKey("AWS_ACCESS_KEY");
        authAws.setSecretKey("AWS_SECRET_KEY");
        authAws.setServiceName("glacier");
        authAws.setRegion("us-west-2");

        rest.setAuthAws(authAws);

        // --------------------------------------------------------------------------
        // Note: The above REST connection and setup of the AWS credentials
        // can be done once.  After connecting, any number of REST calls can be made.
        // The "auto reconnect" property passed to rest.Connect indicates that if
        // the connection is lost, a REST method call will automatically reconnect
        // if needed.
        // --------------------------------------------------------------------------

        // Load the data to be uploaded.
        BinData bd = new BinData();
        bd.loadFile("qa_data/jpg/penguins.jpg");
        // (The point here is that the contents of the bd don't necessarily have to come from a file.)

        // For more information, see Glacier Upload Archive Reference Documentation
        //
        rest.addHeader("x-amz-glacier-version", "2012-06-01");

        // We'll need to pre-compute the SHA256 tree hash and the SHA256 linear hash.
        // The hashes are added in the following request headers:

        // x-amz-sha256-tree-hash: SHA256 tree hash
        // x-amz-content-sha256: SHA256 linear hash

        Crypt2 crypt = new Crypt2();
        crypt.setHashAlgorithm("sha256-tree-hash");
        crypt.setEncodingMode("hexlower");
        String treeHashHex = crypt.hashBdENC(bd);
        rest.addHeader("x-amz-sha256-tree-hash", treeHashHex);

        crypt.setHashAlgorithm("sha256");
        String linearHashHex = crypt.hashBdENC(bd);
        authAws.setPrecomputedSha256(linearHashHex);

        // We can optionally add a description
        rest.addHeader("x-amz-archive-description", "Penguins JPG");

        StringBuilder sbResponseBody = new StringBuilder();
        try {
            rest.fullRequestBd("POST", "/AWS_ACCOUNT_ID/vaults/chilkat/archives", bd, sbResponseBody);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        int respStatusCode = rest.getResponseStatusCode();
        if (respStatusCode >= 400) {
            System.out.println("Response Status Code = " + respStatusCode);
            System.out.println("Response Header:");
            System.out.println(rest.getResponseHeader());
            System.out.println("Response Body:");
            System.out.println(sbResponseBody.getAsString());
            return;
        }

        // Success is indicated by a 201 response status with an empty response body.
        System.out.println("response status code = " + respStatusCode);

        // If successful, the response header looks like this.
        // The Location and x-amz-archive-id are two items of information we may wish to save..

        // HTTP/1.1 201 Created
        // x-amzn-RequestId: AAABZpJrTyioDC_HsOmHae8EZp_uBSJr6cnGOLKp_XJCl-Q
        // Date: Wed, 10 Feb 2017 12:00:00 GMT
        // x-amz-sha256-tree-hash: beb0fe31a1c7ca8c6c04d574ea906e3f97b31fdca7571defb5b44dca89b5af60
        // Location: /111122223333/vaults/examplevault/archives/NkbByEejwEggmBz2fTH ... GlqrEXAMPLEArchiveId
        // x-amz-archive-id: NkbByEejwEggmBz2fTHgJrg0XBoDfjP4q6iu87-TjhqG6eGoOY9Z8i1_AUyUsu ... BfGlqrEXAMPLEArchiveId
        //

        String archiveId = rest.responseHdrByName("x-amz-archive-id");
        System.out.println("x-amz-archive-id = " + archiveId);

        String location = rest.responseHdrByName("Location");
        System.out.println("Location = " + location);
    }
}