Java

S3 Find Bucket Region

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Demonstrates how to find out the region of an S3 bucket. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkRest rest = new CkRest();

    // Connect to the Amazon AWS REST server using the correct region (in this example, "us-west-2")
    boolean bTls = true;
    int port = 443;
    boolean bAutoReconnect = true;
    success = rest.Connect("s3.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials for the REST call.
    CkAuthAws authAws = new CkAuthAws();
    authAws.put_AccessKey("AWS_ACCESS_KEY");
    authAws.put_SecretKey("AWS_SECRET_KEY");
    authAws.put_ServiceName("s3");
    success = rest.SetAuthAws(authAws);

    // The bucket name we want to know about is set in the HOST header.
    // In this example, we want to find the region for the "chilkat.qa" bucket.
    rest.put_Host("chilkat.qa.s3.amazonaws.com");

    // Send the GET request to query the bucket location.
    String strResult = rest.fullRequestNoBody("GET","/?location");
    if (rest.get_LastMethodSuccess() != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    int responseStatusCode = rest.get_ResponseStatusCode();
    System.out.println("Response status code = " + responseStatusCode);
    if (responseStatusCode != 200) {
        System.out.println(rest.responseHeader());
        System.out.println(strResult);
        System.out.println("Failed.");
        return;
        }

    System.out.println(strResult);

    // The result contains XML like this:
    // <?xml version="1.0" encoding="UTF-8"?>
    // <LocationConstraint xmlns="http://s3.amazonaws.com/doc/2006-03-01/">us-west-2</LocationConstraint>

    // Get the "us-west-2" from the XML
    CkXml xml = new CkXml();
    success = xml.LoadXml(strResult);
    System.out.println("region = " + xml.content());
  }
}