public void messageReceived(ChannelMessage msg) {
if (okToProcess(msg.getOptions())) {
if (msg.getMessage().getLength()
== (START_DATA.length + msg.getUniqueId().length + END_DATA.length)
&& Arrays.contains(msg.getMessage().getBytesDirect(), 0, START_DATA, 0, START_DATA.length)
&& Arrays.contains(
msg.getMessage().getBytesDirect(),
START_DATA.length + msg.getUniqueId().length,
END_DATA,
0,
END_DATA.length)) {
UniqueId id =
new UniqueId(
msg.getMessage().getBytesDirect(), START_DATA.length, msg.getUniqueId().length);
MapEntry original = (MapEntry) messages.get(id);
if (original != null) {
super.messageReceived(original.msg);
messages.remove(id);
} else
log.warn(
"Received a confirmation, but original message is missing. Id:"
+ Arrays.toString(id.getBytes()));
} else {
UniqueId id = new UniqueId(msg.getUniqueId());
MapEntry entry =
new MapEntry((ChannelMessage) msg.deepclone(), id, System.currentTimeMillis());
messages.put(id, entry);
}
} else {
super.messageReceived(msg);
}
}
@Override
public void sendMessage(Member[] destination, ChannelMessage msg, InterceptorPayload payload)
throws ChannelException {
// todo, optimize, if destination.length==1, then we can do
// msg.setOptions(msg.getOptions() & (~getOptionFlag())
// and just send one message
if (okToProcess(msg.getOptions())) {
super.sendMessage(destination, msg, null);
ChannelMessage confirmation = null;
if (deepclone) confirmation = (ChannelMessage) msg.deepclone();
else confirmation = (ChannelMessage) msg.clone();
confirmation.getMessage().reset();
UUIDGenerator.randomUUID(false, confirmation.getUniqueId(), 0);
confirmation.getMessage().append(START_DATA, 0, START_DATA.length);
confirmation.getMessage().append(msg.getUniqueId(), 0, msg.getUniqueId().length);
confirmation.getMessage().append(END_DATA, 0, END_DATA.length);
super.sendMessage(destination, confirmation, payload);
} else {
// turn off two phase commit
// this wont work if the interceptor has 0 as a flag
// since there is no flag to turn off
// msg.setOptions(msg.getOptions() & (~getOptionFlag()));
super.sendMessage(destination, msg, payload);
}
}
public void performBasicCheck() throws RemoteException {
try {
//update all alive times
Member[] members = super.getMembers();
for (int i = 0; members != null && i < members.length; i++) {
if (addSuspects.containsKey(members[i]) && membership.getMember(members[i]) == null) {
// avoid temporary adding member.
continue;
}
if (membership.memberAlive( (org.apache.catalina.tribes.membership.MemberImplRemoteInterface) members[i])) {
//we don't have this one in our membership, check to see if he/she is alive
if (memberAlive(members[i])) {
log.warn("Member added, even though we werent notified:" + members[i]);
super.memberAdded(members[i]);
} else {
membership.removeMember( (org.apache.catalina.tribes.membership.MemberImplRemoteInterface) members[i]);
}
}
}
//check suspect members if they are still alive,
//if not, simply issue the memberDisappeared message
org.apache.catalina.tribes.membership.MemberImplRemoteInterface[] keys = removeSuspects.keySet().toArray(new org.apache.catalina.tribes.membership.MemberImplRemoteInterface[removeSuspects.size()]);
for (int i = 0; i < keys.length; i++) {
org.apache.catalina.tribes.membership.MemberImplRemoteInterface m = keys[i];
if (membership.getMember(m) != null && (!memberAlive(m))) {
membership.removeMember(m);
super.memberDisappeared(m);
removeSuspects.remove(m);
if(log.isInfoEnabled())
log.info("Suspect member, confirmed dead.["+m+"]");
} else {
if (removeSuspectsTimeout > 0) {
long timeNow = System.currentTimeMillis();
int timeIdle = (int) ((timeNow - removeSuspects.get(m).longValue()) / 1000L);
if (timeIdle > removeSuspectsTimeout) {
removeSuspects.remove(m); // remove suspect member
}
}
}
}
//check add suspects members if they are alive now,
//if they are, simply issue the memberAdded message
keys = addSuspects.keySet().toArray(new org.apache.catalina.tribes.membership.MemberImplRemoteInterface[addSuspects.size()]);
for (int i = 0; i < keys.length; i++) {
org.apache.catalina.tribes.membership.MemberImplRemoteInterface m = keys[i];
if ( membership.getMember(m) == null && (memberAlive(m))) {
membership.memberAlive(m);
super.memberAdded(m);
addSuspects.remove(m);
if(log.isInfoEnabled())
log.info("Suspect member, confirmed alive.["+m+"]");
}
}
} catch (Exception excp) {
excp.printStackTrace();
}
}
protected void performBasicCheck() {
// update all alive times
Member[] members = super.getMembers();
for (int i = 0; members != null && i < members.length; i++) {
if (addSuspects.containsKey(members[i]) && membership.getMember(members[i]) == null) {
// avoid temporary adding member.
continue;
}
if (membership.memberAlive((MemberImpl) members[i])) {
// we don't have this one in our membership, check to see if he/she is alive
if (memberAlive(members[i])) {
log.warn("Member added, even though we werent notified:" + members[i]);
super.memberAdded(members[i]);
} else {
membership.removeMember((MemberImpl) members[i]);
} // end if
} // end if
} // for
// check suspect members if they are still alive,
// if not, simply issue the memberDisappeared message
MemberImpl[] keys = removeSuspects.keySet().toArray(new MemberImpl[removeSuspects.size()]);
for (int i = 0; i < keys.length; i++) {
MemberImpl m = keys[i];
if (membership.getMember(m) != null && (!memberAlive(m))) {
membership.removeMember(m);
super.memberDisappeared(m);
removeSuspects.remove(m);
if (log.isInfoEnabled()) log.info("Suspect member, confirmed dead.[" + m + "]");
} else {
if (removeSuspectsTimeout > 0) {
long timeNow = System.currentTimeMillis();
int timeIdle = (int) ((timeNow - removeSuspects.get(m)) / 1000L);
if (timeIdle > removeSuspectsTimeout) {
removeSuspects.remove(m); // remove suspect member
}
}
}
}
// check add suspects members if they are alive now,
// if they are, simply issue the memberAdded message
keys = addSuspects.keySet().toArray(new MemberImpl[addSuspects.size()]);
for (int i = 0; i < keys.length; i++) {
MemberImpl m = keys[i];
if (membership.getMember(m) == null && (memberAlive(m))) {
membership.memberAlive(m);
super.memberAdded(m);
addSuspects.remove(m);
if (log.isInfoEnabled()) log.info("Suspect member, confirmed alive.[" + m + "]");
} // end if
}
}
@Override
public void memberAdded(Member member) throws RemoteException {
try {
if ( membership == null ) setupMembership();
boolean notify = false;
synchronized (membership) {
if (removeSuspects.containsKey(member)) {
//previously marked suspect, system below picked up the member again
removeSuspects.remove(member);
} else if (membership.getMember(member) == null){
//if we add it here, then add it upwards too
//check to see if it is alive
if (memberAlive(member)) {
membership.memberAlive( (org.apache.catalina.tribes.membership.MemberImplRemoteInterface) member);
notify = true;
} else {
addSuspects.put(member, Long.valueOf(System.currentTimeMillis()));
}
}
}
if ( notify ) super.memberAdded(member);
} catch (Exception excp) {
excp.printStackTrace();
}
}
@Override
public void sendMessage(Member[] destination, ChannelMessage msg, InterceptorPayload payload)
throws ChannelException {
if (!okToProcess(msg.getOptions())) {
super.sendMessage(destination, msg, payload);
return;
}
ChannelException cx = null;
for (int i = 0; i < destination.length; i++) {
try {
int nr = 0;
try {
outLock.writeLock().lock();
nr = incCounter(destination[i]);
} finally {
outLock.writeLock().unlock();
}
// reduce byte copy
msg.getMessage().append(nr);
try {
getNext().sendMessage(new Member[] {destination[i]}, msg, payload);
} finally {
msg.getMessage().trim(4);
}
} catch (ChannelException x) {
if (cx == null) cx = x;
cx.addFaultyMember(x.getFaultyMembers());
}
} // for
if (cx != null) throw cx;
}
@Override
public void heartbeat() throws RemoteException {
try {
super.heartbeat();
checkMembers(false);
} catch (Exception excp) {
excp.printStackTrace();
}
}
@Override
public void memberDisappeared(Member member) {
// reset counters - lock free
incounter.remove(member);
outcounter.remove(member);
// clear the remaining queue
processLeftOvers(member, true);
// notify upwards
super.memberDisappeared(member);
}
/**
* @param order MessageOrder
* @return boolean - true if a message expired and was processed
*/
protected boolean processIncoming(MessageOrder order) {
boolean result = false;
Member member = order.getMessage().getAddress();
Counter cnt = getInCounter(member);
MessageOrder tmp = incoming.get(member);
if (tmp != null) {
order = MessageOrder.add(tmp, order);
}
while ((order != null) && (order.getMsgNr() <= cnt.getCounter())) {
// we are right on target. process orders
if (order.getMsgNr() == cnt.getCounter()) cnt.inc();
else if (order.getMsgNr() > cnt.getCounter()) cnt.setCounter(order.getMsgNr());
super.messageReceived(order.getMessage());
order.setMessage(null);
order = order.next;
}
MessageOrder head = order;
MessageOrder prev = null;
tmp = order;
// flag to empty out the queue when it larger than maxQueue
boolean empty = order != null ? order.getCount() >= maxQueue : false;
while (tmp != null) {
// process expired messages or empty out the queue
if (tmp.isExpired(expire) || empty) {
// reset the head
if (tmp == head) head = tmp.next;
cnt.setCounter(tmp.getMsgNr() + 1);
if (getForwardExpired()) super.messageReceived(tmp.getMessage());
tmp.setMessage(null);
tmp = tmp.next;
if (prev != null) prev.next = tmp;
result = true;
} else {
prev = tmp;
tmp = tmp.next;
}
}
if (head == null) incoming.remove(member);
else incoming.put(member, head);
return result;
}
protected void performForcedCheck() {
// update all alive times
Member[] members = super.getMembers();
for (int i = 0; members != null && i < members.length; i++) {
if (memberAlive(members[i])) {
if (membership.memberAlive((MemberImpl) members[i])) super.memberAdded(members[i]);
addSuspects.remove(members[i]);
} else {
if (membership.getMember(members[i]) != null) {
membership.removeMember((MemberImpl) members[i]);
removeSuspects.remove(members[i]);
if (members[i] instanceof StaticMember) {
addSuspects.put(members[i], Long.valueOf(System.currentTimeMillis()));
}
super.memberDisappeared(members[i]);
}
}
}
}
@Override
public void messageReceived(ChannelMessage msg) {
// catch incoming
boolean process = true;
if (okToProcess(msg.getOptions())) {
// check to see if it is a testMessage, if so, process = false
process =
((msg.getMessage().getLength() != TCP_FAIL_DETECT.length)
|| (!Arrays.equals(TCP_FAIL_DETECT, msg.getMessage().getBytes())));
} // end if
// ignore the message, it doesnt have the flag set
if (process) super.messageReceived(msg);
else if (log.isDebugEnabled()) log.debug("Received a failure detector packet:" + msg);
}
@Override
public void messageReceived(ChannelMessage msg) {
if (!okToProcess(msg.getOptions())) {
super.messageReceived(msg);
return;
}
int msgnr =
XByteBuffer.toInt(msg.getMessage().getBytesDirect(), msg.getMessage().getLength() - 4);
msg.getMessage().trim(4);
MessageOrder order = new MessageOrder(msgnr, (ChannelMessage) msg.deepclone());
try {
inLock.writeLock().lock();
if (processIncoming(order)) processLeftOvers(msg.getAddress(), false);
} finally {
inLock.writeLock().unlock();
}
}
public static void startManagers() {
ChannelInterceptorBase.startManagers();
try {
if (gerenciadornuvem0 == null)
gerenciadornuvem0 = (Gerenciadornuvem0Interface) Naming
.lookup("rmi://0:1099/gerenciadornuvem0");
if (gerenciadornuvem1 == null)
gerenciadornuvem1 = (Gerenciadornuvem1Interface) Naming
.lookup("rmi://1:1099/gerenciadornuvem1");
} catch (RemoteException e) {
e.printStackTrace();
} catch (NotBoundException e) {
e.printStackTrace();
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
@Override
public void sendMessage(Member[] destination, ChannelMessage msg, InterceptorPayload payload)
throws ChannelException {
try {
super.sendMessage(destination, msg, payload);
} catch (ChannelException cx) {
ChannelExceptionFaultyMember[] mbrs = cx.getFaultyMembers();
for (int i = 0; i < mbrs.length; i++) {
if (mbrs[i].getCause() != null
&& (!(mbrs[i].getCause()
instanceof RemoteProcessException))) { // RemoteProcessException's are ok
this.memberDisappeared(mbrs[i].getMember());
} // end if
} // for
throw cx;
}
}
public void heartbeat() {
try {
long now = System.currentTimeMillis();
Map.Entry[] entries =
(Map.Entry[]) messages.entrySet().toArray(new Map.Entry[messages.size()]);
for (int i = 0; i < entries.length; i++) {
MapEntry entry = (MapEntry) entries[i].getValue();
if (entry.expired(now, expire)) {
if (log.isInfoEnabled()) log.info("Message [" + entry.id + "] has expired. Removing.");
messages.remove(entry.id);
} // end if
}
} catch (Exception x) {
log.warn("Unable to perform heartbeat on the TwoPhaseCommit interceptor.", x);
} finally {
super.heartbeat();
}
}
@Override
public void memberDisappeared(Member member) throws RemoteException {
try {
if ( membership == null ) setupMembership();
boolean notify = false;
boolean shutdown = Arrays.equals(member.getCommand(),Member.SHUTDOWN_PAYLOAD);
if ( !shutdown )
if(log.isInfoEnabled())
log.info("Received memberDisappeared["+member+"] message. Will verify.");
synchronized (membership) {
if (!membership.contains(member)) {
if(log.isInfoEnabled())
log.info("Verification complete. Member already disappeared["+member+"]");
return;
}
//check to see if the member really is gone
//if the payload is not a shutdown message
if (shutdown || !memberAlive(member)) {
//not correct, we need to maintain the map
membership.removeMember( (org.apache.catalina.tribes.membership.MemberImplRemoteInterface) member);
removeSuspects.remove(member);
if (member instanceof org.apache.catalina.tribes.membership.StaticMemberRemoteInterface) {
addSuspects.put(member, Long.valueOf(System.currentTimeMillis()));
}
notify = true;
} else {
//add the member as suspect
removeSuspects.put(member, Long.valueOf(System.currentTimeMillis()));
}
}
if ( notify ) {
if(log.isInfoEnabled())
log.info("Verification complete. Member disappeared["+member+"]");
super.memberDisappeared(member);
} else {
if(log.isInfoEnabled())
log.info("Verification complete. Member still alive["+member+"]");
}
} catch (Exception excp) {
excp.printStackTrace();
}
}
@Override
public void sendMessage(Member[] destination, ChannelMessage msg, org.apache.catalina.tribes.group.InterceptorPayloadRemoteInterface payload) throws ChannelException, RemoteException {
try {
try {
super.sendMessage(destination, msg, payload);
}catch ( ChannelException cx ) {
org.apache.catalina.tribes.ChannelExceptionFaultyMemberRemoteInterface[] mbrs = cx.getFaultyMembers();
for ( int i=0; i<mbrs.length; i++ ) {
if ( mbrs[i].getCause()!=null &&
(!(mbrs[i].getCause() instanceof RemoteProcessException)) ) {//RemoteProcessException's are ok
this.memberDisappeared(mbrs[i].getMember());
}//end if
}//for
throw cx;
}
} catch (Exception excp) {
excp.printStackTrace();
}
}
@Override
public void memberAdded(Member member) {
if (membership == null) setupMembership();
boolean notify = false;
synchronized (membership) {
if (removeSuspects.containsKey(member)) {
// previously marked suspect, system below picked up the member again
removeSuspects.remove(member);
} else if (membership.getMember(member) == null) {
// if we add it here, then add it upwards too
// check to see if it is alive
if (memberAlive(member)) {
membership.memberAlive((MemberImpl) member);
notify = true;
} else {
addSuspects.put(member, Long.valueOf(System.currentTimeMillis()));
}
}
}
if (notify) super.memberAdded(member);
}
public void performForcedCheck() throws RemoteException {
try {
//update all alive times
Member[] members = super.getMembers();
for (int i = 0; members != null && i < members.length; i++) {
if (memberAlive(members[i])) {
if (membership.memberAlive((org.apache.catalina.tribes.membership.MemberImplRemoteInterface)members[i])) super.memberAdded(members[i]);
addSuspects.remove(members[i]);
} else {
if (membership.getMember(members[i])!=null) {
membership.removeMember((org.apache.catalina.tribes.membership.MemberImplRemoteInterface)members[i]);
removeSuspects.remove(members[i]);
if (members[i] instanceof org.apache.catalina.tribes.membership.StaticMemberRemoteInterface) {
addSuspects.put(members[i], Long.valueOf(System.currentTimeMillis()));
}
super.memberDisappeared(members[i]);
}
}
}
} catch (Exception excp) {
excp.printStackTrace();
}
}
@Override
public void memberAdded(Member member) {
// notify upwards
super.memberAdded(member);
}
@Override
public void heartbeat() {
super.heartbeat();
checkMembers(false);
}