Package | Description |
---|---|
org.jgroups |
Provides top-level public JGroups classes such as Channel, Message, etc.
|
org.jgroups.blocks |
Provides building blocks that are layered on top of channels.
|
org.jgroups.blocks.mux | |
org.jgroups.fork | |
org.jgroups.jmx | |
org.jgroups.protocols |
Provides implementations of transport protocols which are
responsible for sending and receiving messages to/from the network.
|
org.jgroups.protocols.pbcast |
Supports probabilistic broadcasts.
|
org.jgroups.protocols.relay | |
org.jgroups.protocols.relay.config | |
org.jgroups.protocols.rules | |
org.jgroups.protocols.tom | |
org.jgroups.stack |
Support for managing protocol stacks.
|
org.jgroups.util |
Provides useful functionality which cannot be assigned to any particular other package.
|
Constructor and Description |
---|
JChannel(Protocol... protocols)
Creates a channel from an array of protocols.
|
Constructor and Description |
---|
JChannel(java.util.Collection<Protocol> protocols)
Creates a channel from an array of protocols.
|
Modifier and Type | Field and Description |
---|---|
protected Protocol |
RequestCorrelator.transport
The protocol layer to use to pass up/down messages.
|
Modifier and Type | Method and Description |
---|---|
protected RequestCorrelator |
MessageDispatcher.createRequestCorrelator(Protocol transport,
RequestHandler handler,
Address local_addr) |
Constructor and Description |
---|
RequestCorrelator(Protocol transport,
RequestHandler handler,
Address local_addr) |
RequestCorrelator(short corr_id,
Protocol transport,
RequestHandler handler,
Address local_addr)
Constructor.
|
Modifier and Type | Method and Description |
---|---|
protected RequestCorrelator |
MuxMessageDispatcher.createRequestCorrelator(Protocol transport,
RequestHandler handler,
Address localAddr) |
protected RequestCorrelator |
MuxRpcDispatcher.createRequestCorrelator(Protocol transport,
RequestHandler handler,
Address localAddr) |
Constructor and Description |
---|
MuxRequestCorrelator(short id,
Protocol transport,
RequestHandler handler,
Address localAddr) |
Modifier and Type | Class and Description |
---|---|
class |
ForkProtocol
Acts as bottom protool of a fork-stack.
|
class |
ForkProtocolStack
Protocol stack which maintains the mapping between fork-channel IDs and ForkChannels
|
Modifier and Type | Field and Description |
---|---|
protected java.util.List<Protocol> |
ForkProtocolStack.protocols |
Modifier and Type | Method and Description |
---|---|
java.util.List<Protocol> |
ForkProtocolStack.getProtocols() |
Modifier and Type | Method and Description |
---|---|
protected static FORK |
ForkChannel.getFORK(Channel ch,
int position,
java.lang.Class<? extends Protocol> neighbor,
boolean create_fork_if_absent)
Creates a new FORK protocol, or returns the existing one, or throws an exception.
|
Constructor and Description |
---|
ForkChannel(Channel main_channel,
java.lang.String fork_stack_id,
java.lang.String fork_channel_id,
boolean create_fork_if_absent,
int position,
java.lang.Class<? extends Protocol> neighbor,
Protocol... protocols)
Creates a new fork-channel from a main-channel.
|
ForkChannel(Channel main_channel,
java.lang.String fork_stack_id,
java.lang.String fork_channel_id,
Protocol... protocols)
Creates a new fork-channel from a main-channel.
|
Constructor and Description |
---|
ForkChannel(Channel main_channel,
java.lang.String fork_stack_id,
java.lang.String fork_channel_id,
boolean create_fork_if_absent,
int position,
java.lang.Class<? extends Protocol> neighbor,
Protocol... protocols)
Creates a new fork-channel from a main-channel.
|
ForkProtocolStack(UnknownForkHandler unknownForkHandler,
java.util.List<Protocol> protocols,
java.lang.String fork_stack_id) |
Modifier and Type | Method and Description |
---|---|
static javax.management.DynamicMBean |
JmxConfigurator.wrap(Protocol p)
Wrap Protocol with DynamicMBean interface.
|
Modifier and Type | Class and Description |
---|---|
class |
ABP
Alternating Bit Protocol.
|
class |
ASYM_ENCRYPT
Encrypts and decrypts communication in JGroups by using a secret key distributed to all cluster members by the
key server (coordinator) using asymmetric (public/private key) encryption.
The secret key is identical for all cluster members and is used to encrypt messages when sending and decrypt them when receiving messages. |
class |
AUTH
The AUTH protocol adds a layer of authentication to JGroups.
|
class |
BARRIER
All messages up the stack have to go through a barrier (read lock, RL).
|
class |
BasicTCP
Shared base class for TCP protocols
|
class |
BPING
Broadcast PING.
|
class |
CENTRAL_EXECUTOR
This is a central executor service where each request is sent to the coordinator
for either a task or a current waiting thread.
|
class |
CENTRAL_LOCK
Implementation of a locking protocol which acquires locks by contacting the coordinator.
|
class |
COMPRESS
Compresses the payload of a message.
|
class |
COUNTER
Protocol which is used by
CounterService to provide a distributed atomic counter |
class |
DAISYCHAIN
Implementation of daisy chaining.
|
class |
DELAY
Delays incoming/outgoing messages by a random number of milliseconds (range between 0 and n
where n is determined by the user) and nanoseconds (constant amount).
|
class |
DELIVERY_TIME
Protocol measuring delivery times.
|
class |
DISCARD
Discards up or down messages based on a percentage; e.g., setting property 'up' to 0.1 causes 10%
of all up messages to be discarded.
|
class |
DISCARD_PAYLOAD
Discards a message whose sequence number (in the payload, as a Long) matches seqno 2 times,
before passing it down.
|
class |
Discovery
The Discovery protocol retrieves the initial membership (used by GMS and MERGE3) by sending discovery requests.
|
class |
DUPL
Duplicates outgoing or incoming messages by copying them
|
class |
ENCRYPT
Deprecated.
Use
ASYM_ENCRYPT or SYM_ENCRYPT instead |
class |
EncryptBase
Super class of symmetric (
SYM_ENCRYPT ) and asymmetric (ASYM_ENCRYPT ) encryption protocols. |
class |
EXAMPLE
Example of a protocol layer.
|
class |
Executing
This is the base protocol used for executions.
|
class |
FC
Deprecated.
Succeeded by MFC and UFC
|
class |
FD
Failure detection based on simple heartbeat protocol.
|
class |
FD_ALL
Failure detection based on simple heartbeat protocol.
|
class |
FD_ALL2
Failure detection based on simple heartbeat protocol.
|
class |
FD_HOST
Failure detection protocol which detects the crash or hanging of entire hosts and suspects all cluster members
on those hosts.
|
class |
FD_PING
Deprecated.
Use
FD_HOST instead. Will be removed in 4.0. |
class |
FD_SOCK
Failure detection protocol based on sockets.
|
class |
FILE_PING
Simple discovery protocol which uses a file on shared storage such as an SMB share, NFS mount or S3.
|
class |
FlowControl
Simple flow control protocol based on a credit system.
|
class |
FORK
The FORK protocol; multiplexes messages to different forks in a stack (https://issues.jboss.org/browse/JGRP-1613).
|
class |
FORWARD_TO_COORD
Forwards a message to the current coordinator.
|
class |
FRAG
Fragmentation layer.
|
class |
FRAG2
Fragmentation layer.
|
class |
GOOGLE_PING
Discovery protocol for Google Cloud Storage.
|
class |
HDRS
Prints the headers of all sent or received messages
|
class |
JDBC_PING
Discovery protocol using a JDBC connection to a shared database.
|
class |
KeyExchange
Base class for protocols implementing key exchange: a secret key to be used for encryption is exchanged between
2 parties (usually the key server and a new cluster member) securely; ie.
|
class |
Locking
Base locking protocol, handling most of the protocol communication with other instances.
|
class |
MAKE_BATCH
Intercepts individual up messages and creates batches from them, passing the batches up.
|
class |
MERGE2
Deprecated.
Use
MERGE3 instead, as it causes less traffic, especially for large clusters |
class |
MERGE3
Protocol to discover subgroups; e.g., existing due to a network partition (that healed).
|
class |
MFC
Simple flow control protocol based on a credit system.
|
class |
MPING
Uses its own IP multicast socket to send and receive discovery requests/responses.
|
class |
PDC
Persistent Discovery Cache.
|
class |
PEER_LOCK
Deprecated.
Use
CENTRAL_LOCK instead |
class |
PERF
Protocol measuring latency between stacks.
|
class |
PING
The PING protocol retrieves the initial membership by mcasting a discovery request (via the multicast capable
transport) to all current cluster members
The responses should allow us to determine the coordinator which we have to contact, e.g.
|
class |
PRIO
This protocol will provide message sending and receiving prioritization.
|
class |
RACKSPACE_PING
Discovery protocol based on Rackspace Cloud Files storage solution
|
class |
RATE_LIMITER
Protocol which sends at most max_bytes in time_period milliseconds.
|
class |
RELAY
Simple relaying protocol: RELAY is added to the top of the stack, creates a channel to a bridge cluster,
and - if coordinator - relays all multicast messages via the bridge cluster to the remote cluster.
This is not a big virtual cluster, e.g.
|
class |
RSVP
Protocol which implements synchronous messages (https://issues.jboss.org/browse/JGRP-1389).
|
class |
S3_PING
Discovery protocol using Amazon's S3 storage.
|
class |
SASL
The SASL protocol implements authentication and, if requested by the mech, encryption
|
class |
SCOPE
Deprecated.
Use the async invocation API instead:
http://www.jgroups.org/manual-3.x/html/user-building-blocks.html#AsyncInvocation
|
class |
SEQUENCER
Implementation of total order protocol using a sequencer.
|
class |
SEQUENCER2
Implementation of total order protocol using a sequencer_uum.
|
class |
SHARED_LOOPBACK
Loopback transport shared by all channels within the same VM.
|
class |
SHARED_LOOPBACK_PING
Discovery protocol running over
SHARED_LOOPBACK only. |
class |
SHUFFLE
Reorders messages by buffering them and shuffling the result after TIMEOUT ms.
|
class |
SIZE
Protocol which prints out the real size of a message.
|
class |
SSL_KEY_EXCHANGE
Key exchange based on SSL sockets.
|
class |
STATS
Provides various stats
|
class |
STOMP
Protocol which provides STOMP (http://stomp.codehaus.org/) support.
|
class |
SWIFT_PING
Discovery protocol based on Openstack Swift (object storage).
|
class |
SYM_ENCRYPT
Encrypts and decrypts communication in JGroups by using a secret key shared by all cluster members.
|
class |
TCP
TCP based protocol.
|
class |
TCP_NIO
Deprecated.
|
class |
TCP_NIO2
Protocol using TCP/IP to send and receive messages.
|
class |
TCPGOSSIP
The TCPGOSSIP protocol layer retrieves the initial membership (used by the
GMS when started by sending event FIND_INITIAL_MBRS down the stack).
|
class |
TCPPING
The TCPPING protocol defines a static cluster membership.
|
class |
TP
Generic transport - specific implementations should extend this abstract class.
|
static class |
TP.ProtocolAdapter
Used when the transport is shared (singleton_name != null).
|
class |
TRACE |
class |
TUNNEL
Replacement for UDP.
|
class |
UDP
IP multicast transport based on UDP.
|
class |
UFC
Simple flow control protocol based on a credit system.
|
class |
UNICAST
Deprecated.
Will be removed in 4.0
|
class |
UNICAST2
Deprecated.
Will be removed in 4.0
|
class |
UNICAST3
Reliable unicast protocol using a combination of positive and negative acks.
|
class |
VERIFY_SUSPECT
Catches SUSPECT events traveling up the stack.
|
Modifier and Type | Field and Description |
---|---|
protected java.util.concurrent.ConcurrentMap<java.lang.String,Protocol> |
FORK.fork_stacks |
protected java.util.concurrent.ConcurrentMap<AsciiString,Protocol> |
TP.up_prots
If singleton_name is enabled, this map is used to de-multiplex incoming messages according to their cluster
names (attached to the message by the transport anyway).
|
Modifier and Type | Method and Description |
---|---|
protected <T extends Protocol> |
KeyExchange.findProtocolAbove(java.lang.Class<? extends Protocol> clazz) |
Modifier and Type | Method and Description |
---|---|
Protocol |
FORK.get(java.lang.String fork_stack_id) |
Protocol |
FORK.putIfAbsent(java.lang.String fork_stack_id,
Protocol prot) |
Modifier and Type | Method and Description |
---|---|
protected static java.util.List<Protocol> |
FORK.createProtocols(ProtocolStack stack,
java.util.List<ProtocolConfiguration> protocol_configs)
Creates a fork-stack from the configuration, initializes all protocols (setting values),
sets the protocol stack as top protocol, connects the protocols and calls init() on them.
|
java.util.concurrent.ConcurrentMap<AsciiString,Protocol> |
TP.getUpProtocols() |
Modifier and Type | Method and Description |
---|---|
static ForkProtocolStack |
FORK.getForkStack(Protocol prot) |
protected void |
FORK.getStateFrom(JChannel channel,
Protocol prot,
java.lang.String stack,
java.lang.String ch,
java.io.DataOutputStream out) |
Protocol |
FORK.putIfAbsent(java.lang.String fork_stack_id,
Protocol prot) |
Modifier and Type | Method and Description |
---|---|
ProtocolStack |
FORK.createForkStack(java.lang.String fork_stack_id,
java.util.List<Protocol> protocols,
boolean initialize)
Returns the fork stack for fork_stack_id (if exitstent), or creates a new fork-stack from protocols and adds it
into the hashmap of fork-stack (key is fork_stack_id).
|
protected <T extends Protocol> |
KeyExchange.findProtocolAbove(java.lang.Class<? extends Protocol> clazz) |
Constructor and Description |
---|
ProtocolAdapter(AsciiString cluster_name,
Address local_addr,
short transport_id,
Protocol up,
Protocol down,
java.lang.String pattern) |
Modifier and Type | Class and Description |
---|---|
class |
FLUSH
Flush, as it name implies, forces group members to flush their pending messages while blocking
them to send any additional messages.
|
class |
GMS
Group membership protocol.
|
class |
NAKACK
Deprecated.
Will be removed in 4.0
|
class |
NAKACK2
Negative AcKnowledgement layer (NAKs).
|
class |
STABLE
Computes the broadcast messages that are stable; i.e., have been delivered by all members.
|
class |
STATE
STATE streams the state (written to an OutputStream) to the state requester in chunks (defined by
chunk_size).
|
class |
STATE_SOCK
STATE_SOCK has the state provider create a server socket to which the state
requester connects and from which the latter reads the state. |
class |
STATE_TRANSFER
STATE_TRANSFER protocol based on byte array transfer.
|
class |
StreamingStateTransfer
Base class for state transfer protocols which use streaming (or chunking) to transfer state between two members.
|
Modifier and Type | Class and Description |
---|---|
class |
RELAY2
Design: ./doc/design/RELAY2.txt and at https://github.com/belaban/JGroups/blob/master/doc/design/RELAY2.txt.
JIRA: https://issues.jboss.org/browse/JGRP-1433
|
Modifier and Type | Field and Description |
---|---|
protected Protocol[] |
RelayConfig.ProgrammaticBridgeConfig.protocols |
Modifier and Type | Method and Description |
---|---|
protected static java.lang.String |
RelayConfig.ProgrammaticBridgeConfig.printProtocols(Protocol[] protocols) |
Constructor and Description |
---|
ProgrammaticBridgeConfig(java.lang.String cluster_name,
Protocol[] prots) |
Modifier and Type | Class and Description |
---|---|
class |
SUPERVISOR
Protocol which supervises other protocols.
|
Modifier and Type | Class and Description |
---|---|
class |
TOA
Total Order Anycast with three communication steps (based on Skeen's Algorithm).
|
Modifier and Type | Class and Description |
---|---|
class |
ProtocolStack
A ProtocolStack manages a number of protocols layered above each other.
|
Modifier and Type | Field and Description |
---|---|
protected Protocol |
ProtocolStack.bottom_prot |
protected Protocol |
Protocol.down_prot |
protected Protocol |
RouterStubManager.owner |
protected Protocol |
ProtocolStack.top_prot |
protected Protocol |
Protocol.up_prot |
Modifier and Type | Method and Description |
---|---|
static Protocol |
Configurator.connectProtocols(java.util.List<Protocol> protocol_list)
Creates a protocol stack by iterating through the protocol list and connecting
adjacent layers.
|
protected static Protocol |
Configurator.createLayer(ProtocolStack stack,
ProtocolConfiguration config) |
protected Protocol |
ProtocolStack.createProtocol(java.lang.String classname) |
static Protocol |
Configurator.createProtocol(java.lang.String prot_spec,
ProtocolStack stack)
Creates a new protocol given the protocol specification.
|
Protocol |
ProtocolStack.findProtocol(java.lang.Class<?>... classes)
Finds the first protocol of a list and returns it.
|
Protocol |
ProtocolStack.findProtocol(java.lang.Class<?> clazz) |
Protocol |
ProtocolStack.findProtocol(java.lang.String name)
Returns a given protocol or null if not found
|
Protocol |
ProtocolStack.getBottomProtocol() |
Protocol |
Protocol.getDownProtocol() |
Protocol |
ProtocolStack.getTopProtocol() |
Protocol |
Protocol.getUpProtocol() |
Protocol |
Protocol.level(java.lang.String level) |
Protocol |
ProtocolStack.removeProtocol(java.lang.Class... protocols) |
Protocol |
ProtocolStack.removeProtocol(java.lang.Class prot) |
Protocol |
ProtocolStack.removeProtocol(Protocol prot) |
Protocol |
ProtocolStack.removeProtocol(java.lang.String prot_name)
Removes a protocol from the stack.
|
Protocol |
Protocol.setDownProtocol(Protocol prot) |
Protocol |
Protocol.setErgonomics(boolean ergonomics) |
Protocol |
Protocol.setId(short id) |
Protocol |
Protocol.setLevel(java.lang.String level)
Sets the level of a logger.
|
Protocol |
Protocol.setProtocolStack(ProtocolStack s) |
Protocol |
Protocol.setUpProtocol(Protocol prot) |
Protocol |
Configurator.setupProtocolStack(java.util.List<ProtocolConfiguration> config) |
static Protocol |
Configurator.setupProtocolStack(java.util.List<ProtocolConfiguration> protocol_configs,
ProtocolStack st)
The configuration string has a number of entries, separated by a ':' (colon).
|
Protocol |
Configurator.setupProtocolStack(ProtocolStack copySource) |
Protocol |
Protocol.setValue(java.lang.String name,
java.lang.Object value) |
Protocol |
Protocol.setValues(java.util.Map<java.lang.String,java.lang.Object> values) |
Modifier and Type | Method and Description |
---|---|
java.util.List<Protocol> |
ProtocolStack.copyProtocols(ProtocolStack targetStack) |
static java.util.List<Protocol> |
Configurator.createProtocols(java.util.List<ProtocolConfiguration> protocol_configs,
ProtocolStack stack)
Takes vector of ProtocolConfigurations, iterates through it, creates Protocol for
each ProtocolConfiguration and returns all Protocols in a list.
|
java.util.List<Protocol> |
ProtocolStack.getProtocols()
Returns all protocols in a list, from top to bottom.
|
Modifier and Type | Method and Description |
---|---|
ProtocolStack |
ProtocolStack.addProtocol(Protocol prot)
Adds a protocol at the tail of the protocol list
|
ProtocolStack |
ProtocolStack.addProtocols(Protocol... prots)
Adds a list of protocols
|
void |
ProtocolHook.afterCreation(Protocol prot)
Called after all protocols have been created, connected and its attributes set, but
before
init() is called. |
ProtocolStack |
ProtocolStack.bottomProtocol(Protocol bottom) |
protected static void |
ProtocolStack.callAfterCreationHook(Protocol prot,
java.lang.String classname) |
static RouterStubManager |
RouterStubManager.emptyGossipClientStubManager(Protocol p) |
static java.lang.Object |
Configurator.getValueFromProtocol(Protocol protocol,
java.lang.reflect.Field field) |
static java.lang.Object |
Configurator.getValueFromProtocol(Protocol protocol,
java.lang.String field_name) |
void |
ProtocolStack.insertProtocol(Protocol prot,
int position,
java.lang.Class<? extends Protocol>... neighbor_prots) |
void |
ProtocolStack.insertProtocol(Protocol prot,
int position,
java.lang.Class<? extends Protocol> neighbor_prot) |
void |
ProtocolStack.insertProtocol(Protocol prot,
int position,
java.lang.String neighbor_prot)
Inserts an already created (and initialized) protocol into the protocol list.
|
void |
ProtocolStack.insertProtocolAtTop(Protocol prot) |
void |
ProtocolStack.insertProtocolInStack(Protocol prot,
Protocol neighbor,
int position) |
Protocol |
ProtocolStack.removeProtocol(Protocol prot) |
protected static void |
Configurator.removeProvidedDownServices(Protocol protocol,
java.util.List<java.lang.Integer> events)
Removes all events provided by the protocol above protocol from events
|
protected static void |
Configurator.removeProvidedUpServices(Protocol protocol,
java.util.List<java.lang.Integer> events)
Removes all events provided by the protocol below protocol from events
|
void |
ProtocolStack.replaceProtocol(Protocol existing_prot,
Protocol new_prot)
Replaces one protocol instance with another.
|
Protocol |
Protocol.setDownProtocol(Protocol prot) |
Protocol |
Protocol.setUpProtocol(Protocol prot) |
ProtocolStack |
ProtocolStack.topProtocol(Protocol top) |
Modifier and Type | Method and Description |
---|---|
ProtocolStack |
ProtocolStack.addProtocols(java.util.List<Protocol> prots)
Adds a list of protocols
|
static Protocol |
Configurator.connectProtocols(java.util.List<Protocol> protocol_list)
Creates a protocol stack by iterating through the protocol list and connecting
adjacent layers.
|
static java.util.Map<java.lang.String,java.util.Map<java.lang.String,Configurator.InetAddressInfo>> |
Configurator.createInetAddressMap(java.util.List<ProtocolConfiguration> protocol_configs,
java.util.List<Protocol> protocols) |
static void |
Configurator.ensureValidBindAddresses(java.util.List<Protocol> protocols)
Makes sure that all fields annotated with @LocalAddress is (1) an InetAddress and (2) a valid address on any
local network interface
|
static java.util.List<java.net.InetAddress> |
Configurator.getInetAddresses(java.util.List<Protocol> protocols) |
void |
ProtocolStack.insertProtocol(Protocol prot,
int position,
java.lang.Class<? extends Protocol> neighbor_prot) |
static void |
Configurator.sanityCheck(java.util.List<Protocol> protocols)
Throws an exception if sanity check fails.
|
static void |
Configurator.setDefaultValues(java.util.List<Protocol> protocols) |
static void |
Configurator.setDefaultValues(java.util.List<Protocol> protocols,
StackType ip_version) |
static void |
Configurator.setDefaultValues(java.util.List<ProtocolConfiguration> protocol_configs,
java.util.List<Protocol> protocols,
StackType ip_version) |
Constructor and Description |
---|
RouterStubManager(Protocol owner,
java.lang.String cluster_name,
Address local_addr,
java.lang.String logical_name,
PhysicalAddress phys_addr,
long interval) |
Modifier and Type | Field and Description |
---|---|
protected Protocol |
ForwardQueue.down_prot |
protected Protocol |
ForwardQueue.up_prot |
Modifier and Type | Method and Description |
---|---|
Protocol |
ForwardQueue.getDownProt() |
static Protocol[] |
Util.getTestStack(Protocol... additional_protocols)
Returns a default stack for testing with transport = SHARED_LOOPBACK
|
Protocol |
ForwardQueue.getUpProt() |
Modifier and Type | Method and Description |
---|---|
static JChannel |
Util.createChannel(Protocol... prots) |
static Protocol[] |
Util.getTestStack(Protocol... additional_protocols)
Returns a default stack for testing with transport = SHARED_LOOPBACK
|
void |
ForwardQueue.setDownProt(Protocol down_prot) |
void |
ForwardQueue.setUpProt(Protocol up_prot) |
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