Java

SNS List Topics

See more Amazon SNS Examples

List the existing SNS topics.

See SNS List Topics for more information.

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 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.
    //  such as https://sns.us-west-2.amazonaws.com/
    boolean bTls = true;
    int port = 443;
    boolean bAutoReconnect = true;
    success = rest.Connect("sns.us-west-2.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");
    //  the region should match our URL above..
    authAws.put_Region("us-west-2");
    authAws.put_ServiceName("sns");

    rest.SetAuthAws(authAws);

    rest.AddQueryParam("Action","ListTopics");

    String responseXml = rest.fullRequestNoBody("GET","/");
    if (rest.get_LastMethodSuccess() != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    //  A successful response will have a status code equal to 200.
    if (rest.get_ResponseStatusCode() != 200) {
        System.out.println("response status code = " + rest.get_ResponseStatusCode());
        System.out.println("response status text = " + rest.responseStatusText());
        System.out.println("response header: " + rest.responseHeader());
        System.out.println("response body: " + responseXml);
        return;
        }

    //  Examine the successful XML response (shown below)
    CkXml xml = new CkXml();
    xml.LoadXml(responseXml);
    System.out.println(xml.getXml());

    //  To iterate over the TopicArn's
    String notUsed = xml.chilkatPath("ListTopicsResult|Topics|$");
    int i = 0;
    int numTopics = xml.get_NumChildren();
    while (i < numTopics) {
        xml.GetChild2(i);
        System.out.println(xml.getChildContent("TopicArn"));
        xml.GetParent2();
        i = i+1;
        }

    xml.GetRoot2();

    //  A sample successful response:
    //  <?xml version="1.0" encoding="utf-8" ?>
    //  <ListTopicsResponse xmlns="http://sns.amazonaws.com/doc/2010-03-31/">
    //      <ListTopicsResult>
    //          <Topics>
    //              <member>
    //                  <TopicArn>arn:aws:sns:us-west-2:957491831129:chilkat</TopicArn>
    //              </member>
    //              <member>
    //                  <TopicArn>arn:aws:sns:us-west-2:957491831129:chilkat123</TopicArn>
    //              </member>
    //              <member>
    //                  <TopicArn>arn:aws:sns:us-west-2:957491831129:chilkatses</TopicArn>
    //              </member>
    //          </Topics>
    //      </ListTopicsResult>
    //      <ResponseMetadata>
    //          <RequestId>54514f94-b07d-5f0b-9c8a-1ff85ff4ac65</RequestId>
    //      </ResponseMetadata>
    //  </ListTopicsResponse>
  }
}