public class SUPERVISOR extends Protocol
Modifier and Type | Field and Description |
---|---|
protected static String |
CLASS |
protected String |
config |
protected List<EventHandler> |
event_handlers |
protected BoundedList<String> |
executions |
protected static String |
INTERVAL |
protected Address |
local_addr |
protected static String |
NAME |
protected int |
num_event_handlers |
protected static String |
RULE |
protected Map<String,Tuple<Rule,Future<?>>> |
rules |
protected static String |
RULES |
protected TimeScheduler |
timer |
protected View |
view |
after_creation_hook, down_prot, ergonomics, id, log, name, stack, stats, up_prot
Constructor and Description |
---|
SUPERVISOR() |
Modifier and Type | Method and Description |
---|---|
void |
addCondition(String cond) |
void |
destroy()
This method is called on a
Channel.close() . |
Object |
down(Event evt)
An event is to be sent down the stack.
|
String |
dumpRules() |
String |
executions() |
Address |
getLocalAddress() |
int |
getNumRules() |
View |
getView() |
protected void |
handleView(View view) |
void |
init()
Called after instance has been created (null constructor) and before protocol is started.
|
void |
installRule(long interval,
Rule rule)
Installs a new rule
|
void |
installRule(long interval,
String classname) |
void |
installRule(String name,
long interval,
Rule rule)
Installs a new rule
|
void |
installRule(String name,
long interval,
String classname) |
protected static void |
match(String expected_name,
String name,
boolean is_element) |
protected void |
parseConfig(String filename) |
protected void |
parseRule(Node root) |
protected void |
parseRules(InputStream input) |
void |
register(EventHandler handler) |
void |
uninstallRule(String name) |
void |
unregister(EventHandler handler) |
Object |
up(Event evt)
An event was received from the layer below.
|
void |
up(MessageBatch batch)
Sends up a multiple messages in a
MessageBatch . |
accept, afterCreationHook, dumpStats, enableStats, getConfigurableObjects, getDownProtocol, getDownServices, getId, getIdsAbove, getLevel, getLog, getName, getProtocolStack, getSocketFactory, getThreadFactory, getTransport, getUpProtocol, getUpServices, getValue, isErgonomics, level, parse, printStats, providedDownServices, providedUpServices, requiredDownServices, requiredUpServices, resetStatistics, resetStats, setDownProtocol, setErgonomics, setId, setLevel, setProtocolStack, setSocketFactory, setUpProtocol, setValue, setValues, start, statsEnabled, stop
protected Address local_addr
protected volatile View view
protected TimeScheduler timer
protected final BoundedList<String> executions
protected String config
protected final List<EventHandler> event_handlers
protected volatile int num_event_handlers
protected static final String RULES
protected static final String RULE
protected static final String NAME
protected static final String CLASS
protected static final String INTERVAL
public Address getLocalAddress()
public View getView()
public String executions()
public void addCondition(String cond)
public int getNumRules()
public String dumpRules()
public void register(EventHandler handler)
public void unregister(EventHandler handler)
public void init() throws Exception
Protocol
public void destroy()
Protocol
Channel.close()
.
Does some cleanup; after the call the VM will terminatepublic void installRule(long interval, Rule rule)
interval
- Number of ms between executions of the rulerule
- The rulepublic void installRule(String name, long interval, Rule rule)
name
- The name of the ruleinterval
- Number of ms between executions of the rulerule
- The rulepublic void installRule(String name, long interval, String classname) throws Exception
Exception
public void installRule(long interval, String classname) throws Exception
Exception
public void uninstallRule(String name)
public Object down(Event evt)
Protocol
down_prot.down()
. 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 up_prot.up()
.public Object up(Event evt)
Protocol
down_prot.down()
or c) the event (or another event) is sent up
the stack using up_prot.up()
.public void up(MessageBatch batch)
Protocol
MessageBatch
. The sender of the batch is always the same, and so is the
destination (null == multicast messages). Messages in a batch can be OOB messages, regular messages, or mixed
messages, although the transport itself will create initial MessageBatches that contain only either OOB or
regular messages.
The default processing below sends messages up the stack individually, based on a matching criteria
(calling Protocol.accept(org.jgroups.Message)
), and - if true - calls Protocol.up(org.jgroups.Event)
for that message and removes the message. If the batch is not empty, it is passed up, or else it is dropped.
Subclasses should check if there are any messages destined for them (e.g. using
MessageBatch.getMatchingMessages(short,boolean)
), then possibly remove and process them and finally pass
the batch up to the next protocol. Protocols can also modify messages in place, e.g. ENCRYPT could decrypt all
encrypted messages in the batch, not remove them, and pass the batch up when done.protected void handleView(View view)
protected void parseRules(InputStream input) throws Exception
Exception
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