(Java) S3 List Bucket Objects (using Chilkat REST)

Demonstrates how to fetch a list of objects in an S3 bucket.

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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[])
  {
    // This example 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.
    boolean bTls = true;
    int port = 443;
    boolean bAutoReconnect = true;
    boolean success = rest.Connect("s3.amazonaws.com",port,bTls,bAutoReconnect);

    // ----------------------------------------------------------------------------
    // Important: For buckets created in regions outside us-east-1,
    // there are three important changes that need to be made.
    // See Working with S3 Buckets in Non-us-east-1 Regions for the details.
    // ----------------------------------------------------------------------------

    // 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);

    //  Set the bucket name via the HOST header.
    //  In this case, the bucket name is "chilkat100".
    rest.put_Host("chilkat100.s3.amazonaws.com");

    CkStringBuilder sbResponse = new CkStringBuilder();
    success = rest.FullRequestNoBodySb("GET","/",sbResponse);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    int statusCode = rest.get_ResponseStatusCode();
    System.out.println("Response status code = " + statusCode);

    CkXml xml = new CkXml();
    xml.LoadSb(sbResponse,true);
    System.out.println(xml.getXml());

    if (statusCode != 200) {
        System.out.println("Failed.  See error information in the XML.");
        return;
        }

    // Use this online tool to generate code from sample XML: 
    // Generate Code to Create XML

    String Key;
    String LastModified;
    String ETag;
    String SizeDecimalStr;
    String ID;
    String DisplayName;
    String StorageClass;

    String Name = xml.getChildContent("Name");
    int MaxKeys = xml.GetChildIntValue("MaxKeys");
    String IsTruncated = xml.getChildContent("IsTruncated");
    int i = 0;
    int count_i = xml.NumChildrenHavingTag("Contents");
    while (i < count_i) {
        xml.put_I(i);
        Key = xml.getChildContent("Contents[i]|Key");
        LastModified = xml.getChildContent("Contents[i]|LastModified");
        ETag = xml.getChildContent("Contents[i]|ETag");
        SizeDecimalStr = xml.getChildContent("Contents[i]|Size");
        ID = xml.getChildContent("Contents[i]|Owner|ID");
        DisplayName = xml.getChildContent("Contents[i]|Owner|DisplayName");
        StorageClass = xml.getChildContent("Contents[i]|StorageClass");
        i = i+1;
        }
  }
}