com.fr.third.jgroups.protocols

类 MPING

java.lang.Object

com.fr.third.jgroups.stack.Protocol

com.fr.third.jgroups.protocols.Discovery

com.fr.third.jgroups.protocols.PING

com.fr.third.jgroups.protocols.MPING

所有已实现的接口:

java.lang.Runnable

public class MPING
extends PING
implements java.lang.Runnable

Uses its own IP multicast socket to send and receive discovery requests/responses. Can be used in conjuntion with a non-UDP transport, e.g. TCP.

The discovery is assymetric: discovery requests are broadcast via the multicast socket, and received via the multicast socket by everyone in the group. However, the discovery responses are sent back via the regular transport (e.g. TCP) to the sender (discovery request contained sender's regular address, e.g. 192.168.0.2:7800).

作者:

Bela Ban

字段概要

字段

限定符和类型	字段和说明
protected java.lang.String	bind_interface_str

从类继承的字段 com.fr.third.jgroups.protocols.Discovery

always_send_physical_addr_with_discovery_request, async_discovery, break_on_coord_rsp, cluster_name, current_coord, discovery_rsp_expiry_time, force_sending_discovery_rsps, is_coord, is_leaving, is_server, local_addr, max_members_in_discovery_request, members, num_discovery_requests, num_initial_members, num_initial_srv_members, ping_responses, return_entire_cache, stagger_timeout, timeout, timer, transport_supports_multicasting, use_disk_cache, view, WHITESPACE

从类继承的字段 com.fr.third.jgroups.stack.Protocol

down_prot, ergonomics, id, log, name, stack, stats, up_prot

构造器概要

构造器

构造器和说明
MPING()

方法概要

方法

限定符和类型	方法和说明
java.net.InetAddress	getBindAddr()
java.net.InetAddress	getMcastAddr()
int	getMcastPort()
java.util.List<java.net.NetworkInterface>	getReceiveInterfaces()
java.util.List<java.net.NetworkInterface>	getSendInterfaces()
int	getTTL()
void	init() Called after instance has been created (null constructor) and before protocol is started.
boolean	isReceiveOnAllInterfaces()
boolean	isSendOnAllInterfaces()
void	run()
protected void	sendMcastDiscoveryRequest(Message msg)
void	setBindAddr(java.net.InetAddress bind_addr)
void	setMcastAddr(java.net.InetAddress mcast_addr)
void	setMcastPort(int mcast_port)
void	setMulticastAddress(java.lang.String addr)
void	setTTL(int ip_ttl)
void	start() This method is called on a Channel.connect(String).
void	stop() This method is called on a Channel.disconnect().
java.lang.Object	up(Event evt) An event was received from the layer below.

从类继承的方法 com.fr.third.jgroups.protocols.PING

findMembers, isDynamic, sendDiscoveryRequest

从类继承的方法 com.fr.third.jgroups.protocols.Discovery

addDiscoveryResponseToCaches, addResponse, addressAsString, addToCache, breakOnCoordResponse, breakOnCoordResponse, deserialize, discoveryRequestReceived, down, dumpCache, findInitialMembersAsString, findMembers, forceDiscoveryResponses, forceDiscoveryResponses, getCurrentCoord, getNumberOfDiscoveryRequestsSent, getNumInitialMembers, getTimeout, getView, getViewId, handleConnect, handleDisconnect, handleDiscoveryResponse, isCoord, isMergeRunning, marshal, numInitialMembers, numInitialMembers, providedUpServices, read, readPingData, resetStats, returnEntireCache, returnEntireCache, sendDiscoveryResponse, serializeWithoutView, setForceSendingDiscoveryRsps, setNumInitialMembers, setTimeout, staggerTimeout, staggerTimeout, timeout, timeout, useDiskCache, useDiskCache, write

从类继承的方法 com.fr.third.jgroups.stack.Protocol

accept, destroy, dumpStats, enableStats, getConfigurableObjects, getDownProtocol, getDownServices, getId, getIdsAbove, getLevel, getName, getProtocolStack, getSocketFactory, getThreadFactory, getTransport, getUpProtocol, getUpServices, getValue, isErgonomics, level, parse, printStats, providedDownServices, requiredDownServices, requiredUpServices, resetStatistics, setDownProtocol, setErgonomics, setId, setLevel, setProtocolStack, setSocketFactory, setUpProtocol, setValue, setValues, statsEnabled, up

从类继承的方法 java.lang.Object

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

字段详细资料

bind_interface_str

protected java.lang.String bind_interface_str

构造器详细资料

MPING

public MPING()

方法详细资料

getBindAddr

public java.net.InetAddress getBindAddr()

setBindAddr

public void setBindAddr(java.net.InetAddress bind_addr)

getReceiveInterfaces

public java.util.List<java.net.NetworkInterface> getReceiveInterfaces()

getSendInterfaces

public java.util.List<java.net.NetworkInterface> getSendInterfaces()

isReceiveOnAllInterfaces

public boolean isReceiveOnAllInterfaces()

isSendOnAllInterfaces

public boolean isSendOnAllInterfaces()

getTTL

public int getTTL()

setTTL

public void setTTL(int ip_ttl)

getMcastAddr

public java.net.InetAddress getMcastAddr()

setMcastAddr

public void setMcastAddr(java.net.InetAddress mcast_addr)

setMulticastAddress

public void setMulticastAddress(java.lang.String addr)
                         throws java.net.UnknownHostException

抛出:

java.net.UnknownHostException

getMcastPort

public int getMcastPort()

setMcastPort

public void setMcastPort(int mcast_port)

up

public java.lang.Object up(Event evt)

从类复制的说明: Protocol

An event was received from the layer below. Usually the current layer will want to examine the event type and - depending on its type - perform some computation (e.g. removing headers from a MSG event type, or updating the internal membership list when receiving a VIEW_CHANGE event). Finally the event is either a) discarded, or b) an event is sent down the stack using down_prot.down() or c) the event (or another event) is sent up the stack using up_prot.up().

覆盖:

up 在类中 Discovery

init

public void init()
          throws java.lang.Exception

从类复制的说明: Protocol

Called after instance has been created (null constructor) and before protocol is started. Properties are already set. Other protocols are not yet connected and events cannot yet be sent.

覆盖:

init 在类中 Discovery

抛出:

java.lang.Exception - Thrown if protocol cannot be initialized successfully. This will cause the ProtocolStack to fail, so the channel constructor will throw an exception

start

public void start()
           throws java.lang.Exception

从类复制的说明: Protocol

This method is called on a Channel.connect(String). Starts work. Protocols are connected and queues are ready to receive events. Will be called from bottom to top. This call will replace the START and START_OK events.

覆盖:

start 在类中 Discovery

抛出:

java.lang.Exception - Thrown if protocol cannot be started successfully. This will cause the ProtocolStack to fail, so Channel.connect(String) will throw an exception

stop

public void stop()

从类复制的说明: Protocol

This method is called on a Channel.disconnect(). Stops work (e.g. by closing multicast socket). Will be called from top to bottom. This means that at the time of the method invocation the neighbor protocol below is still working. This method will replace the STOP, STOP_OK, CLEANUP and CLEANUP_OK events. The ProtocolStack guarantees that when this method is called all messages in the down queue will have been flushed

覆盖:

stop 在类中 Discovery

sendMcastDiscoveryRequest

protected void sendMcastDiscoveryRequest(Message msg)

覆盖:

sendMcastDiscoveryRequest 在类中 PING

run

public void run()

指定者:

run 在接口中 java.lang.Runnable