snsListTopics.java

package org.xmlsh.aws;

import java.io.IOException;
import java.util.List;
import javax.xml.stream.XMLStreamException;
import org.xmlsh.aws.util.AWSSNSCommand;
import org.xmlsh.core.CoreException;
import org.xmlsh.core.Options;
import org.xmlsh.core.UnexpectedException;
import org.xmlsh.core.XValue;
import org.xmlsh.core.io.OutputPort;
import com.amazonaws.services.sns.model.ListTopicsRequest;
import com.amazonaws.services.sns.model.ListTopicsResult;
import com.amazonaws.services.sns.model.Topic;
import net.sf.saxon.s9api.SaxonApiException;

public class snsListTopics extends AWSSNSCommand {

  /**
   * @param args
   * @throws IOException
   */
  @Override
  public int run(List<XValue> args) throws Exception {

    Options opts = getOptions();
    parseOptions(opts, args);

    args = opts.getRemainingArgs();

    setSerializeOpts(this.getSerializeOpts(opts));

    try {
      getSNSClient(opts);
    } catch (UnexpectedException e) {
      usage(e.getLocalizedMessage());
      return 1;

    }

    int ret;

    ret = list();

    return ret;

  }

  private int list()
      throws IOException, XMLStreamException, SaxonApiException, CoreException {

    OutputPort stdout = this.getStdout();
    mWriter = stdout.asXMLStreamWriter(getSerializeOpts());

    startDocument();
    startElement(getName());

    traceCall("listTopics");

    ListTopicsResult result = getAWSClient().listTopics();
    do {
      for(Topic topic : result.getTopics()) {
        startElement("topic");
        attribute("arn", topic.getTopicArn());
        endElement();

      }
      if(result.getNextToken() != null)
        result = getAWSClient().listTopics(
            new ListTopicsRequest().withNextToken(result.getNextToken()));

    } while(result.getNextToken() != null);

    endElement();
    endDocument();
    closeWriter();
    stdout.writeSequenceTerminator(getSerializeOpts());

    return 0;

  }

}