Java

Amazon Glacier Get Vault Access Policy

See more Amazon Glacier Examples

Demonstrates how to retrieve the access-policy subresource set on the vault Chilkat2 Java

import com.chilkatsoft.chilkat2.AuthAws;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.JsonObject;
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.
        // --------------------------------------------------------------------------

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

        // Get the access policy for the "chilkat" vault.
        StringBuilder sbResponseBody = new StringBuilder();
        try {
            rest.fullRequestNoBodySb("GET", "/AWS_ACCOUNT_ID/vaults/chilkat/access-policy", 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 200 response status.
        System.out.println("response status code = " + respStatusCode);

        JsonObject json = new JsonObject();
        json.loadSb(sbResponseBody);
        json.setEmitCompact(false);

        // Returns JSON such as this:
        // {
        //   "Policy": "{\"Version\":\"2012-10-17\",\"Statement\":[{\"Sid\":\"Define-owner-access-rights\",\"Effect\":\"Allow\",\"Principal\":{\"AWS\":\"arn:aws:iam::9999999999999:root\"},\"Action\":\"glacier:DeleteArchive\",\"Resource\":\"arn:aws:glacier:us-west-2:9999999999999:vaults/chilkat\"}]}"
        // }

        // Unwrap...
        JsonObject jsonPolicy = new JsonObject();
        jsonPolicy.load(json.stringOf("Policy"));
        jsonPolicy.setEmitCompact(false);

        System.out.println(jsonPolicy.emit());
        System.out.println("----");

        // The jsonPolicy contains:

        // {
        //   "Version": "2012-10-17",
        //   "Statement": [
        //     {
        //       "Sid": "Define-owner-access-rights",
        //       "Effect": "Allow",
        //       "Principal": {
        //         "AWS": "arn:aws:iam::9999999999999:root"
        //       },
        //       "Action": "glacier:DeleteArchive",
        //       "Resource": "arn:aws:glacier:us-west-2:9999999999999:vaults/chilkat"
        //     }
        //   ]
        // }
        //

        // Use this online tool to generate parsing code from sample JSON:
        // Generate Parsing Code from JSON

        // To parse the above contents of jsonPolicy...
        String Sid = "";
        String Effect = "";
        String PrincipalAWS = "";
        String Action = "";
        String Resource = "";

        String Version = jsonPolicy.stringOf("Version");
        int i = 0;
        int count_i = jsonPolicy.sizeOfArray("Statement");
        while (i < count_i) {
            jsonPolicy.setI(i);
            Sid = jsonPolicy.stringOf("Statement[i].Sid");
            Effect = jsonPolicy.stringOf("Statement[i].Effect");
            PrincipalAWS = jsonPolicy.stringOf("Statement[i].Principal.AWS");
            Action = jsonPolicy.stringOf("Statement[i].Action");
            Resource = jsonPolicy.stringOf("Statement[i].Resource");
            i = i + 1;
        }
    }
}