org.jgroups.protocols
Class S3_PING

java.lang.Object
  org.jgroups.stack.Protocol
      org.jgroups.protocols.Discovery
          org.jgroups.protocols.FILE_PING
              org.jgroups.protocols.S3_PING

public class S3_PING
extends FILE_PING

Discovery protocol using Amazon's S3 storage. The S3 access code reuses the example shipped by Amazon. This protocol is unsupported and experimental !

Version:

$Id: S3_PING.java,v 1.8 2010/06/17 06:59:13 belaban Exp $

Author:

Bela Ban

Nested Class Summary

Nested classes/interfaces inherited from class org.jgroups.protocols.FILE_PING

FILE_PING.WriterTask

Nested classes/interfaces inherited from class org.jgroups.protocols.Discovery

Discovery.Responses

Field Summary

protected java.lang.String	access_key
protected org.jgroups.protocols.S3_PING.AWSAuthConnection	conn
protected java.lang.String	prefix
protected java.lang.String	secret_access_key

Fields inherited from class org.jgroups.protocols.FILE_PING

filter, interval, location, root_dir, SUFFIX

Fields inherited from class org.jgroups.protocols.Discovery

group_addr, local_addr, members, ping_responses, timer, view

Fields inherited from class org.jgroups.stack.Protocol

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

Constructor Summary

S3_PING()

Method Summary

void	init() Called after instance has been created (null constructor) and before protocol is started.
protected java.util.List<PingData>	readAll(java.lang.String clustername) Reads all information from the given directory under clustername
protected void	remove(java.lang.String clustername, Address addr)
protected void	writeToFile(PingData data, java.lang.String clustername)

Methods inherited from class org.jgroups.protocols.FILE_PING

down, handleView, readFile, sendGetMembersRequest, start, stop

Methods inherited from class org.jgroups.protocols.Discovery

findAllMembers, findAllViews, findAllViewsAsString, findInitialMembers, findInitialMembers, findInitialMembersAsString, getNumberOfDiscoveryRequestsSent, getNumInitialMembers, getNumPingRequests, getTimeout, getView, handleConnect, handleDisconnect, makeView, providedUpServices, resetStats, setNumInitialMembers, setNumPingRequests, setTimeout, up

Methods inherited from class org.jgroups.stack.Protocol

destroy, downThreadEnabled, dumpStats, enableStats, getConfigurableObjects, getDownProtocol, getId, getLevel, getName, getProperties, getProtocolStack, getSocketFactory, getThreadFactory, getTransport, getUpProtocol, printStats, providedDownServices, requiredDownServices, requiredUpServices, setDownProtocol, setId, setLevel, setProperties, setPropertiesInternal, setProperty, setProtocolStack, setSocketFactory, setUpProtocol, statsEnabled, upThreadEnabled

Methods inherited from class java.lang.Object

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

Field Detail

access_key

protected java.lang.String access_key

secret_access_key

protected java.lang.String secret_access_key

prefix

protected java.lang.String prefix

conn

protected org.jgroups.protocols.S3_PING.AWSAuthConnection conn

Constructor Detail

S3_PING

public S3_PING()

Method Detail

init

public void init()
          throws java.lang.Exception

Description copied from class: 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.

Overrides:

init in class FILE_PING

Throws:

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

readAll

protected java.util.List<PingData> readAll(java.lang.String clustername)

Description copied from class: FILE_PING

Reads all information from the given directory under clustername

Overrides:

readAll in class FILE_PING

Returns:

writeToFile

protected void writeToFile(PingData data,
                           java.lang.String clustername)

Overrides:

writeToFile in class FILE_PING

remove

protected void remove(java.lang.String clustername,
                      Address addr)

Overrides:

remove in class FILE_PING