Array as param type when invoking an MBean

Question

Hello everybody,
I need to transfer a file using a byte array. How can I do this?
I mean, the MBean has a method:
public boolean fileUpload(byte[] bytes, String filename);And I want to invoke this using:
boolean uploaded = (Boolean)(server.invoke(client, "fileUpload", params, sign));Where params is a {byte[]}, how do I fill sign[]?
Thank you!
Andrea

Answer 1

By far your best bet is to use an MBean proxy. Suppose your MBean interface looks like this:
public interface UploaderMBean {
    public boolean fileUpload(byte[] bytes, String fileName);
}Then, if you're on JDK 6, you could just do this:
UploaderMBean uploader = JMX.newMBeanProxy(server, objectName, UploaderMBean.class);
boolean uploaded = uploader.fileUpload(bytes, fileName);On JDK 5 you can use the class MBeanServerInvocationHandler to achieve the same thing with a little more work. (That solution will then work on JDK 6 too.)
Regards,
�amonn McManus -- JMX Spec Lead -- http://weblogs.java.net/blog/emcmanus