org.jgroups.Event Maven / Gradle / Ivy
Go to download
This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
package org.jgroups;
/**
* Event is a JGroups internal class used for inter-stack and intra-stack communication.
*
* @since 2.0
* @author Bela Ban
*/
public class Event {
public static final int MSG = 1; // arg = Message
public static final int CONNECT = 2; // arg = cluster name (string)
public static final int DISCONNECT = 4; // arg = member address (Address)
public static final int VIEW_CHANGE = 6; // arg = View (or MergeView in case of merge)
public static final int SET_LOCAL_ADDRESS = 8; // arg = Address
public static final int SUSPECT = 9; // arg = Address of suspected member
public static final int BLOCK = 10; // arg = null (used by FLUSH)
public static final int FIND_MBRS = 11; // arg = List (can be null) -> Responses
public static final int FIND_INITIAL_MBRS = 12; // arg = null -> Responses
public static final int MERGE = 14; // arg = Map
public static final int TMP_VIEW = 15; // arg = View
public static final int BECOME_SERVER = 16; // sent when client has joined group
public static final int GET_APPLSTATE = 17; // get state from appl (arg=StateTransferInfo)
public static final int GET_STATE = 19; // arg = StateTransferInfo
public static final int GET_STATE_OK = 20; // arg = StateTransferInfo
public static final int STABLE = 30; // arg = long[] (stable seqnos for mbrs)
public static final int GET_DIGEST = 39; // arg= address (or null)
public static final int SET_DIGEST = 41; // arg = Digest
public static final int OVERWRITE_DIGEST = 42; // arg = Digest
public static final int UNSUSPECT = 51; // arg = Address (of unsuspected member)
public static final int MERGE_DIGEST = 53; // arg = Digest
public static final int CONFIG = 56; // arg = Map (config properties)
public static final int SUSPEND_STABLE = 65; // arg = Long (max_suspend_time)
public static final int RESUME_STABLE = 66; // arg = null
public static final int SUSPEND = 68; // arg = List (used by FLUSH)
public static final int RESUME = 70; // arg = null (used by FLUSH)
public static final int STATE_TRANSFER_INPUTSTREAM = 71; // arg = InputStream
public static final int STATE_TRANSFER_OUTPUTSTREAM = 72; // arg = OutputStream
public static final int STATE_TRANSFER_INPUTSTREAM_CLOSED = 73; // arg = StateTransferResult
public static final int UNBLOCK = 75; // arg = null (indicate end of flush round)
public static final int CLOSE_BARRIER = 76; // arg = null
public static final int OPEN_BARRIER = 77; // arg = null
public static final int REBROADCAST = 78; // arg = Digest
public static final int CONNECT_WITH_STATE_TRANSFER = 80; // arg = cluster name (string)
public static final int GET_PHYSICAL_ADDRESS = 87; // arg = Address --> PhysicalAddress
public static final int GET_LOGICAL_PHYSICAL_MAPPINGS = 88; // arg = boolean --> Map
public static final int SET_PHYSICAL_ADDRESS = 89; // arg = Tuple --> boolean
public static final int REMOVE_ADDRESS = 90; // arg = Address
public static final int GET_LOCAL_ADDRESS = 91; // arg = null --> UUID (local_addr)
public static final int CONNECT_USE_FLUSH = 92;
public static final int CONNECT_WITH_STATE_TRANSFER_USE_FLUSH = 93;
public static final int SUSPEND_BUT_FAIL = 94; // used in FLUSH testing, no args
public static final int LOCK = 95; // arg = LockInfo
public static final int UNLOCK = 96; // arg = LockInfo
public static final int UNLOCK_ALL = 97; // arg = null
public static final int LOCK_AWAIT = 98; // arg = LockInfo
public static final int LOCK_SIGNAL = 99; // arg = AwaitInfo
public static final int IS_MERGE_IN_PROGRESS = 100; // returns true or false
public static final int GET_PHYSICAL_ADDRESSES = 102; // arg = null (returns all physical addresses)
public static final int SITE_UNREACHABLE = 104; // arg = SiteMaster (RELAY2)
public static final int FORWARD_TO_COORD = 105; // arg = Message
public static final int PUNCH_HOLE = 106; // arg = Address (member)
public static final int CLOSE_HOLE = 107; // arg = Address (member)
public static final int GET_VIEW_FROM_COORD = 108;
public static final int GET_PING_DATA = 109; // arg = cluster_name
public static final int USER_DEFINED = 1000; // arg =
public static final Event GET_DIGEST_EVT = new Event(Event.GET_DIGEST);
public static final Event FIND_INITIAL_MBRS_EVT = new Event(Event.FIND_INITIAL_MBRS);
public static final Event FIND_MBRS_EVT = new Event(Event.FIND_MBRS);
private final int type; // type of event
private final Object arg; // must be serializable if used for inter-stack communication
public Event(int type) {
this.type=type;
this.arg=null;
}
public Event(int type, Object arg) {
this.type=type;
this.arg=arg;
}
public final int getType() {
return type;
}
public Object getArg() {
return arg;
}
public static String type2String(int t) {
switch(t) {
case MSG: return "MSG";
case CONNECT: return "CONNECT";
case DISCONNECT: return "DISCONNECT";
case VIEW_CHANGE: return "VIEW_CHANGE";
case SET_LOCAL_ADDRESS: return "SET_LOCAL_ADDRESS";
case SUSPECT: return "SUSPECT";
case BLOCK: return "BLOCK";
case FIND_MBRS: return "FIND_MBRS";
case FIND_INITIAL_MBRS: return "FIND_INITIAL_MBRS";
case TMP_VIEW: return "TMP_VIEW";
case BECOME_SERVER: return "BECOME_SERVER";
case GET_APPLSTATE: return "GET_APPLSTATE";
case GET_STATE: return "GET_STATE";
case GET_STATE_OK: return "GET_STATE_OK";
case STABLE: return "STABLE";
case GET_DIGEST: return "GET_DIGEST";
case SET_DIGEST: return "SET_DIGEST";
case OVERWRITE_DIGEST: return "OVERWRITE_DIGEST";
case MERGE: return "MERGE";
case UNSUSPECT: return "UNSUSPECT";
case MERGE_DIGEST: return "MERGE_DIGEST";
case CONFIG: return "CONFIG";
case SUSPEND_STABLE: return "SUSPEND_STABLE";
case RESUME_STABLE: return "RESUME_STABLE";
case SUSPEND: return "SUSPEND";
case SUSPEND_BUT_FAIL: return "SUSPEND_BUT_FAIL";
case RESUME: return "RESUME";
case STATE_TRANSFER_INPUTSTREAM: return "STATE_TRANSFER_INPUTSTREAM";
case STATE_TRANSFER_OUTPUTSTREAM:return "STATE_TRANSFER_OUTPUTSTREAM";
case STATE_TRANSFER_INPUTSTREAM_CLOSED: return "STATE_TRANSFER_INPUTSTREAM_CLOSED";
case UNBLOCK: return "UNBLOCK";
case CLOSE_BARRIER: return "CLOSE_BARRIER";
case OPEN_BARRIER: return "OPEN_BARRIER";
case REBROADCAST: return "REBROADCAST";
case CONNECT_WITH_STATE_TRANSFER: return "CONNECT_WITH_STATE_TRANSFER";
case GET_PHYSICAL_ADDRESS: return "GET_PHYSICAL_ADDRESS";
case GET_LOGICAL_PHYSICAL_MAPPINGS: return "GET_LOGICAL_PHYSICAL_MAPPINGS";
case SET_PHYSICAL_ADDRESS: return "SET_PHYSICAL_ADDRESS";
case REMOVE_ADDRESS: return "REMOVE_ADDRESS";
case GET_LOCAL_ADDRESS: return "GET_LOCAL_ADDRESS";
case CONNECT_USE_FLUSH: return "CONNECT_USE_FLUSH";
case CONNECT_WITH_STATE_TRANSFER_USE_FLUSH: return "CONNECT_WITH_STATE_TRANSFER_USE_FLUSH";
case LOCK: return "LOCK";
case UNLOCK: return "UNLOCK";
case UNLOCK_ALL: return "UNLOCK_ALL";
case LOCK_AWAIT: return "LOCK_AWAIT";
case LOCK_SIGNAL: return "LOCK_SIGNAL";
case IS_MERGE_IN_PROGRESS: return "IS_MERGE_IN_PROGRESS";
case GET_PHYSICAL_ADDRESSES: return "GET_PHYSICAL_ADDRESSES";
case SITE_UNREACHABLE: return "SITE_UNREACHABLE";
case FORWARD_TO_COORD: return "FORWARD_TO_COORD";
case PUNCH_HOLE: return "PUNCH_HOLE";
case CLOSE_HOLE: return "CLOSE_HOLE";
case GET_VIEW_FROM_COORD: return "GET_VIEW_FROM_COORD";
case GET_PING_DATA: return "GET_PING_DATA";
case USER_DEFINED: return "USER_DEFINED";
default: return "UNDEFINED(" + t + ")";
}
}
public String toString() {
StringBuilder ret=new StringBuilder(64);
ret.append(type2String(type)).append(", arg=").append(arg);
if(type == MSG)
ret.append(" (headers=").append(((Message)arg).printHeaders()).append(")");
return ret.toString();
}
}