org.xmlBlaster.client.reader
Class SubscribeMessage

java.lang.Object
  org.xmlBlaster.client.reader.SubscribeMessage

All Implemented Interfaces:

I_Callback

public class SubscribeMessage

extends java.lang.Object

implements I_Callback

Subscribe from command line for a message.
Use this as a command line tool to subscribe for messages from xmlBlaster, for example for debugging reasons. Invoke examples:

    java org.xmlBlaster.client.reader.SubscribeMessage  -session.name Tim  -passwd  secret  -oid  __cmd:?totalMem
 

For other supported options type

    java org.xmlBlaster.client.reader.SubscribeMessage -?
 

Constructor Summary

SubscribeMessage(Global glob)
Constructs the SubscribeMessage object.

SubscribeMessage(Global glob, java.lang.String xmlKey, java.lang.String queryType)
Open the connection, and subscribe to the message

Method Summary

static void	main(java.lang.String[] args) Invoke: java org.xmlBlaster.client.reader.SubscribeMessage -loginName Tim -passwd secret -oid __cmd:?totalMem
java.lang.String	update(java.lang.String loginName, UpdateKey updateKey, byte[] content, UpdateQos updateQos) This is the callback method invoked from I_XmlBlasterAccess informing the client in an asynchronous mode about a new message.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SubscribeMessage

public SubscribeMessage(Global glob)
                 throws XmlBlasterException

Constructs the SubscribeMessage object.

Start with parameter -? to get a usage description.
These command line parameters are not merged with xmlBlaster.property properties.

SubscribeMessage

public SubscribeMessage(Global glob,
                        java.lang.String xmlKey,
                        java.lang.String queryType)

Open the connection, and subscribe to the message

Method Detail

update

public java.lang.String update(java.lang.String loginName,
                               UpdateKey updateKey,
                               byte[] content,
                               UpdateQos updateQos)

Description copied from interface: I_Callback

This is the callback method invoked from I_XmlBlasterAccess informing the client in an asynchronous mode about a new message.

So you should implement in your client code the I_Callback interface - suppling the update() method where you can do with the message whatever you want.

The raw protocol driver specific update() method (e.g. CORBA-BlasterCallback.update()) is unpacked and for each arrived message this update is called.

Specified by:

update in interface I_Callback

Parameters:

loginName - The session ID specified by the client which registered the callback. You can specify a cbSessionId during connection (with ConnectQos) and this is bounced back here so you can authenticate the message.

updateKey - The arrived key containing the topic name

content - The arrived message content. This is your payload.

See Also:

I_XmlBlasterAccess

main

public static void main(java.lang.String[] args)

Invoke: java org.xmlBlaster.client.reader.SubscribeMessage -loginName Tim -passwd secret -oid __cmd:?totalMem