org.javagroups.protocols
Class SHUFFLE
java.lang.Object
|
+--org.javagroups.stack.Protocol
|
+--org.javagroups.protocols.SHUFFLE
- All Implemented Interfaces:
- java.lang.Runnable
- public class SHUFFLE
- extends Protocol
- implements java.lang.Runnable
This layer shuffles upcoming messages, put it just above your bottom layer.
If you system sends less than 2 messages per sec you can notice a latency due
to this layer.
- Author:
- Gianluca Collot
Fields inherited from class org.javagroups.stack.Protocol |
down_handler, down_prot, down_queue, down_thread, observer, props, stack, up_handler, up_prot, up_queue, up_thread |
Method Summary |
void |
down(Event evt)
An event is to be sent down the stack. |
java.lang.String |
getName()
|
void |
run()
Removes a random chosen message from the messages List<\code> if there
are less than 10 messages in the List it waits some time to ensure to chose from
a set of messages > 1. |
boolean |
setProperties(java.util.Properties props)
Configures the protocol initially. |
void |
up(Event evt)
Adds upcoming messages to the messages List<\code> where the messagesHandler<\code>
retrieves them. |
Methods inherited from class org.javagroups.stack.Protocol |
getDownProtocol, getDownQueue, getProperties, getUpProtocol, getUpQueue, init, passDown, passUp, providedDownServices, providedUpServices, receiveDownEvent, receiveUpEvent, requiredDownServices, requiredUpServices, setDownProtocol, setObserver, setPropertiesInternal, setProtocolStack, setUpProtocol, startDownHandler, startUpHandler, stopInternal |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
SHUFFLE
public SHUFFLE()
getName
public java.lang.String getName()
- Overrides:
getName
in class Protocol
setProperties
public boolean setProperties(java.util.Properties props)
- Description copied from class:
Protocol
- Configures the protocol initially. A configuration string consists of name=value
items, separated by a ';' (semicolon), e.g.:
"loopback=false;unicast_inport=4444"
- Overrides:
setProperties
in class Protocol
up
public void up(Event evt)
- Adds upcoming messages to the
messages List<\code> where the messagesHandler<\code>
retrieves them.
- Overrides:
up
in class Protocol
down
public void down(Event evt)
- Description copied from class:
Protocol
- An event is to be sent down the stack. The layer may want to examine its type and perform
some action on it, depending on the event's type. If the event is a message MSG, then
the layer may need to add a header to it (or do nothing at all) before sending it down
the stack using
passDown()
. In case of a GET_ADDRESS event (which tries to
retrieve the stack's address from one of the bottom layers), the layer may need to send
a new response event back up the stack using passUp()
.
- Overrides:
down
in class Protocol
run
public void run()
- Removes a random chosen message from the
messages List<\code> if there
are less than 10 messages in the List it waits some time to ensure to chose from
a set of messages > 1.
- Specified by:
run
in interface java.lang.Runnable
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