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import com.marketo.mktows.*;
import java.net.URL;
import javax.xml.namespace.QName;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Hex;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;

public class ListMObjects {

    public static void main(String[] args) {
        System.out.println("Executing List MObjects");
        try {
            URL marketoSoapEndPoint = new URL("CHANGE ME" + "?WSDL");
            String marketoUserId = "CHANGE ME";
            String marketoSecretKey = "CHANGE ME";

            QName serviceName = new QName("http://www.marketo.com/mktows/", "MktMktowsApiService");
            MktMktowsApiService service = new MktMktowsApiService(marketoSoapEndPoint, serviceName);
            MktowsPort port = service.getMktowsApiSoapPort();

            // Create Signature
            DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ");
            String text = df.format(new Date());
            String requestTimestamp = text.substring(0, 22) + ":" + text.substring(22);
            String encryptString = requestTimestamp + marketoUserId ;

            SecretKeySpec secretKey = new SecretKeySpec(marketoSecretKey.getBytes(), "HmacSHA1");
            Mac mac = Mac.getInstance("HmacSHA1");
            mac.init(secretKey);
            byte[] rawHmac = mac.doFinal(encryptString.getBytes());
            char[] hexChars = Hex.encodeHex(rawHmac);
            String signature = new String(hexChars);

            // Set Authentication Header
            AuthenticationHeader header = new AuthenticationHeader();
            header.setMktowsUserId(marketoUserId);
            header.setRequestTimestamp(requestTimestamp);
            header.setRequestSignature(signature);

            // Create Request
            ParamsListMObjects request = new ParamsListMObjects();

            SuccessListMObjects result = port.listMObjects(request, header);
            JAXBContext context = JAXBContext.newInstance(SuccessListMObjects.class);
            Marshaller m = context.createMarshaller();
            m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
            m.marshal(result, System.out);

        }
        catch(Exception e) {
            e.printStackTrace();
        }
    }
}