HeartBeatProtocol (Net4j Signalling Platform Documentation)

java.lang.Object
- org.eclipse.net4j.util.event.Notifier
- - org.eclipse.net4j.util.lifecycle.Lifecycle
  - - org.eclipse.spi.net4j.Protocol<INFRA_STRUCTURE>
    - - org.eclipse.net4j.signal.SignalProtocol<Object>
      - org.eclipse.net4j.signal.heartbeat.HeartBeatProtocol

All Implemented Interfaces:

IBufferHandler, ILocationAware, IProtocol<Object>, IProtocol2<Object>, ISignalProtocol<Object>, INotifier, ILifecycle, ILifecycle.DeferrableActivation, IUserAware
```
public class HeartBeatProtocol
extends SignalProtocol<Object>
```
A signal protocol that keeps the connector of its channel open or provides early deactivation feedback by exchanging periodic heart beats.

Since:

2.0

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class HeartBeatProtocol.Server
The server-side implementation of a heart beat protocol.
- Nested classes/interfaces inherited from class org.eclipse.net4j.signal.SignalProtocol
  SignalProtocol.TimeoutChangedEvent
- Nested classes/interfaces inherited from interface org.eclipse.net4j.ILocationAware
  ILocationAware.Location
- Nested classes/interfaces inherited from interface org.eclipse.net4j.util.lifecycle.ILifecycle
  ILifecycle.DeferrableActivation

Nested Classes
Modifier and Type	Class and Description
`static class`	`HeartBeatProtocol.Server` The server-side implementation of a `heart beat protocol`.

Field Summary

Fields
Modifier and Type Field and Description

static String TYPE
- Fields inherited from class org.eclipse.net4j.signal.SignalProtocol
  SIGNAL_MONITOR_CANCELED, SIGNAL_MONITOR_PROGRESS, SIGNAL_REMOTE_EXCEPTION, SIGNAL_SET_TIMEOUT
- Fields inherited from class org.eclipse.net4j.util.lifecycle.Lifecycle
  USE_LABEL
- Fields inherited from interface org.eclipse.net4j.signal.ISignalProtocol
  DEFAULT_TIMEOUT, NO_TIMEOUT
- Fields inherited from interface org.eclipse.net4j.protocol.IProtocol2
  UNSPECIFIED_VERSION

Fields
Modifier and Type	Field and Description
`static String`	`TYPE`

Constructor Summary

Constructors
Modifier	Constructor and Description
	`HeartBeatProtocol(IConnector connector)`
	`HeartBeatProtocol(IConnector connector, IManagedContainer container)`
	`HeartBeatProtocol(IConnector connector, Timer timer)`
`protected`	`HeartBeatProtocol(String type, IConnector connector, Timer timer)`

Method Summary

Methods
Modifier and Type	Method and Description
`protected SignalReactor`	`createSignalReactor(short signalID)` Returns a new signal instance to serve the given signal ID or `null` if the signal ID is invalid/unknown for this protocol.
`protected void`	`doDeactivate()`
`static Timer`	`getDefaultTimer(IManagedContainer container)`
`Timer`	`getTimer()`
`protected void`	`handleTimeout(long untouched)`
`protected void`	`requestingStart(ExtendedDataOutputStream out, long rate)`
`void`	`start(long rate)` Same as `start(rate, 2 * rate)`.
`void`	`start(long rate, long timeout)`

Methods inherited from class org.eclipse.net4j.signal.SignalProtocol
addStreamWrapper, close, doBeforeDeactivate, getStreamWrapper, getTimeout, handleBuffer, handleChannelDeactivation, isSendingTimeoutChanges, open, provideSignalReactor, setStreamWrapper, setTimeout, setTimeout, toString, waitForSignals

Methods inherited from class org.eclipse.spi.net4j.Protocol
doBeforeActivate, getBufferProvider, getChannel, getExecutorService, getInfraStructure, getLocation, getType, getUserID, getVersion, isClient, isServer, setChannel, setExecutorService, setInfraStructure, setUserID

Methods inherited from class org.eclipse.net4j.util.lifecycle.Lifecycle
activate, checkActive, checkArg, checkArg, checkInactive, checkNull, checkState, checkState, deactivate, deferredActivate, doActivate, doAfterActivate, dump, getLifecycleState, isActive, isDeferredActivation

Methods inherited from class org.eclipse.net4j.util.event.Notifier
addListener, fireEvent, fireEvent, fireEvent, fireThrowable, firstListenerAdded, getListeners, getNotificationService, hasListeners, lastListenerRemoved, removeListener

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.net4j.protocol.IProtocol
getBufferProvider, getChannel, getExecutorService, getInfraStructure, getType, setChannel, setExecutorService, setInfraStructure

Methods inherited from interface org.eclipse.net4j.util.security.IUserAware
getUserID

Methods inherited from interface org.eclipse.net4j.ILocationAware
getLocation, isClient, isServer

Methods inherited from interface org.eclipse.net4j.util.event.INotifier
addListener, getListeners, hasListeners, removeListener

Field Detail
- TYPE
```
public static final String TYPE
```
  See Also:
  Constant Field Values

Constructor Detail

HeartBeatProtocol

protected HeartBeatProtocol(String type,
                 IConnector connector,
                 Timer timer)

Since:: 4.0

HeartBeatProtocol

public HeartBeatProtocol(IConnector connector,
                 Timer timer)

HeartBeatProtocol

public HeartBeatProtocol(IConnector connector,
                 IManagedContainer container)

Since:: 4.0

HeartBeatProtocol

public HeartBeatProtocol(IConnector connector)

Method Detail

getTimer
```
public Timer getTimer()
```

start
```
public void start(long rate)
```
Same as start(rate, 2 * rate).

See Also:
start(long, long)

start

public void start(long rate,
         long timeout)

createSignalReactor
```
protected SignalReactor createSignalReactor(short signalID)
```
Description copied from class: SignalProtocol

Returns a new signal instance to serve the given signal ID or null if the signal ID is invalid/unknown for this protocol.

Overrides:

createSignalReactor in class SignalProtocol<Object>

handleTimeout

protected void handleTimeout(long untouched)

doDeactivate
```
protected void doDeactivate()
                     throws Exception
```
Overrides:

doDeactivate in class SignalProtocol<Object>

Throws:

Exception

requestingStart

protected void requestingStart(ExtendedDataOutputStream out,
                   long rate)
                        throws IOException

Throws:: IOException
Since:: 4.0

getDefaultTimer

public static Timer getDefaultTimer(IManagedContainer container)

Class HeartBeatProtocol

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.net4j.signal.SignalProtocol

Nested classes/interfaces inherited from interface org.eclipse.net4j.ILocationAware

Nested classes/interfaces inherited from interface org.eclipse.net4j.util.lifecycle.ILifecycle

Field Summary

Fields inherited from class org.eclipse.net4j.signal.SignalProtocol

Fields inherited from class org.eclipse.net4j.util.lifecycle.Lifecycle

Fields inherited from interface org.eclipse.net4j.signal.ISignalProtocol

Fields inherited from interface org.eclipse.net4j.protocol.IProtocol2

Constructor Summary

Method Summary

Methods inherited from class org.eclipse.net4j.signal.SignalProtocol

Methods inherited from class org.eclipse.spi.net4j.Protocol

Methods inherited from class org.eclipse.net4j.util.lifecycle.Lifecycle

Methods inherited from class org.eclipse.net4j.util.event.Notifier

Methods inherited from class java.lang.Object

Methods inherited from interface org.eclipse.net4j.protocol.IProtocol

Methods inherited from interface org.eclipse.net4j.util.security.IUserAware

Methods inherited from interface org.eclipse.net4j.ILocationAware

Methods inherited from interface org.eclipse.net4j.util.event.INotifier

Field Detail

TYPE

Constructor Detail

HeartBeatProtocol

HeartBeatProtocol

HeartBeatProtocol

HeartBeatProtocol

Method Detail

getTimer

start

start

createSignalReactor

handleTimeout

doDeactivate

requestingStart

getDefaultTimer