Java源码示例：org.apache.catalina.tribes.membership.MemberImpl
示例1
public static ChannelData getDataFromPackage(byte[] b) {
ChannelData data = new ChannelData(false);
int offset = 0;
data.setOptions(XByteBuffer.toInt(b,offset));
offset += 4; //options
data.setTimestamp(XByteBuffer.toLong(b,offset));
offset += 8; //timestamp
data.uniqueId = new byte[XByteBuffer.toInt(b,offset)];
offset += 4; //uniqueId length
System.arraycopy(b,offset,data.uniqueId,0,data.uniqueId.length);
offset += data.uniqueId.length; //uniqueId data
byte[] addr = new byte[XByteBuffer.toInt(b,offset)];
offset += 4; //addr length
System.arraycopy(b,offset,addr,0,addr.length);
data.setAddress(MemberImpl.getMember(addr));
offset += addr.length; //addr data
int xsize = XByteBuffer.toInt(b,offset);
//data.message = new XByteBuffer(new byte[xsize],false);
data.message = BufferPool.getBufferPool().getBuffer(xsize,false);
offset += 4; //message length
System.arraycopy(b,offset,data.message.getBytesDirect(),0,xsize);
data.message.append(b,offset,xsize);
offset += xsize; //message data
return data;
}
示例2
@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);
}
示例3
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]);
}
} //end if
} //for
}
示例4
protected void sendElectionMsgToNextInline(MemberImpl local, CoordinationMessage msg) throws ChannelException {
int next = Arrays.nextIndex(local,msg.getMembers());
int current = next;
msg.leader = msg.getMembers()[0];
boolean sent = false;
while ( !sent && current >= 0 ) {
try {
sendElectionMsg(local, msg.getMembers()[current], msg);
sent = true;
}catch ( ChannelException x ) {
log.warn("Unable to send election message to:"+msg.getMembers()[current]);
current = Arrays.nextIndex(msg.getMembers()[current],msg.getMembers());
if ( current == next ) throw x;
}
}
}
示例5
protected void handleMyToken(MemberImpl local, CoordinationMessage msg, Member sender,Membership merged) throws ChannelException {
if ( local.equals(msg.getLeader()) ) {
//no leadership change
if ( Arrays.sameMembers(msg.getMembers(),merged.getMembers()) ) {
msg.type = COORD_CONF;
super.sendMessage(Arrays.remove(msg.getMembers(),local),createData(msg,local),null);
handleViewConf(msg,local,merged);
} else {
//membership change
suggestedView = new Membership(local,AbsoluteOrder.comp,true);
suggestedviewId = msg.getId();
Arrays.fill(suggestedView,merged.getMembers());
msg.view = merged.getMembers();
sendElectionMsgToNextInline(local,msg);
}
} else {
//leadership change
suggestedView = null;
suggestedviewId = null;
msg.view = merged.getMembers();
sendElectionMsgToNextInline(local,msg);
}
}
示例6
protected void handleViewConf(CoordinationMessage msg, Member sender,Membership merged) throws ChannelException {
if ( viewId != null && msg.getId().equals(viewId) ) return;//we already have this view
view = new Membership((MemberImpl)getLocalMember(false),AbsoluteOrder.comp,true);
Arrays.fill(view,msg.getMembers());
viewId = msg.getId();
if ( viewId.equals(suggestedviewId) ) {
suggestedView = null;
suggestedviewId = null;
}
if (suggestedView != null && AbsoluteOrder.comp.compare(suggestedView.getMembers()[0],merged.getMembers()[0])<0 ) {
suggestedView = null;
suggestedviewId = null;
}
viewChange(viewId,view.getMembers());
fireInterceptorEvent(new CoordinationEvent(CoordinationEvent.EVT_CONF_RX,this,"Accepted View"));
if ( suggestedviewId == null && hasHigherPriority(merged.getMembers(),membership.getMembers()) ) {
startElection(false);
}
}
示例7
@Override
public void memberDisappeared(Member member) {
try {
membership.removeMember((MemberImpl)member);
super.memberDisappeared(member);
try {
fireInterceptorEvent(new CoordinationEvent(CoordinationEvent.EVT_MBR_DEL,this,"Member remove("+member.getName()+")"));
if ( started && (isCoordinator() || isHighest()) )
startElection(true); //to do, if a member disappears, only the coordinator can start
}catch ( ChannelException x ) {
log.error("Unable to start election when member was removed.",x);
}
}finally {
}
}
示例8
@Override
public void heartbeat() {
try {
MemberImpl local = (MemberImpl)getLocalMember(false);
if ( view != null && (Arrays.diff(view,membership,local).length != 0 || Arrays.diff(membership,view,local).length != 0) ) {
if ( isHighest() ) {
fireInterceptorEvent(new CoordinationEvent(CoordinationEvent.EVT_START_ELECT, this,
"Heartbeat found inconsistency, restart election"));
startElection(true);
}
}
} catch ( Exception x ){
log.error("Unable to perform heartbeat.",x);
} finally {
super.heartbeat();
}
}
示例9
public byte[] getDataPackage(byte[] data, int offset) {
byte[] addr = ((MemberImpl)address).getData(false);
XByteBuffer.toBytes(options,data,offset);
offset += 4; //options
XByteBuffer.toBytes(timestamp,data,offset);
offset += 8; //timestamp
XByteBuffer.toBytes(uniqueId.length,data,offset);
offset += 4; //uniqueId.length
System.arraycopy(uniqueId,0,data,offset,uniqueId.length);
offset += uniqueId.length; //uniqueId data
XByteBuffer.toBytes(addr.length,data,offset);
offset += 4; //addr.length
System.arraycopy(addr,0,data,offset,addr.length);
offset += addr.length; //addr data
XByteBuffer.toBytes(message.getLength(),data,offset);
offset += 4; //message.length
System.arraycopy(message.getBytesDirect(),0,data,offset,message.getLength());
offset += message.getLength(); //message data
return data;
}
示例10
public static ChannelData getDataFromPackage(byte[] b) {
ChannelData data = new ChannelData(false);
int offset = 0;
data.setOptions(XByteBuffer.toInt(b,offset));
offset += 4; //options
data.setTimestamp(XByteBuffer.toLong(b,offset));
offset += 8; //timestamp
data.uniqueId = new byte[XByteBuffer.toInt(b,offset)];
offset += 4; //uniqueId length
System.arraycopy(b,offset,data.uniqueId,0,data.uniqueId.length);
offset += data.uniqueId.length; //uniqueId data
byte[] addr = new byte[XByteBuffer.toInt(b,offset)];
offset += 4; //addr length
System.arraycopy(b,offset,addr,0,addr.length);
data.setAddress(MemberImpl.getMember(addr));
offset += addr.length; //addr data
int xsize = XByteBuffer.toInt(b,offset);
//data.message = new XByteBuffer(new byte[xsize],false);
data.message = BufferPool.getBufferPool().getBuffer(xsize,false);
offset += 4; //message length
System.arraycopy(b,offset,data.message.getBytesDirect(),0,xsize);
data.message.append(b,offset,xsize);
offset += xsize; //message data
return data;
}
示例11
@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);
}
示例12
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]);
}
} //end if
} //for
}
示例13
protected void sendElectionMsgToNextInline(MemberImpl local, CoordinationMessage msg) throws ChannelException {
int next = Arrays.nextIndex(local,msg.getMembers());
int current = next;
msg.leader = msg.getMembers()[0];
boolean sent = false;
while ( !sent && current >= 0 ) {
try {
sendElectionMsg(local, msg.getMembers()[current], msg);
sent = true;
}catch ( ChannelException x ) {
log.warn("Unable to send election message to:"+msg.getMembers()[current]);
current = Arrays.nextIndex(msg.getMembers()[current],msg.getMembers());
if ( current == next ) throw x;
}
}
}
示例14
protected void handleMyToken(MemberImpl local, CoordinationMessage msg, Member sender,Membership merged) throws ChannelException {
if ( local.equals(msg.getLeader()) ) {
//no leadership change
if ( Arrays.sameMembers(msg.getMembers(),merged.getMembers()) ) {
msg.type = COORD_CONF;
super.sendMessage(Arrays.remove(msg.getMembers(),local),createData(msg,local),null);
handleViewConf(msg,local,merged);
} else {
//membership change
suggestedView = new Membership(local,AbsoluteOrder.comp,true);
suggestedviewId = msg.getId();
Arrays.fill(suggestedView,merged.getMembers());
msg.view = merged.getMembers();
sendElectionMsgToNextInline(local,msg);
}
} else {
//leadership change
suggestedView = null;
suggestedviewId = null;
msg.view = merged.getMembers();
sendElectionMsgToNextInline(local,msg);
}
}
示例15
protected void handleViewConf(CoordinationMessage msg, Member sender,Membership merged) throws ChannelException {
if ( viewId != null && msg.getId().equals(viewId) ) return;//we already have this view
view = new Membership((MemberImpl)getLocalMember(false),AbsoluteOrder.comp,true);
Arrays.fill(view,msg.getMembers());
viewId = msg.getId();
if ( viewId.equals(suggestedviewId) ) {
suggestedView = null;
suggestedviewId = null;
}
if (suggestedView != null && AbsoluteOrder.comp.compare(suggestedView.getMembers()[0],merged.getMembers()[0])<0 ) {
suggestedView = null;
suggestedviewId = null;
}
viewChange(viewId,view.getMembers());
fireInterceptorEvent(new CoordinationEvent(CoordinationEvent.EVT_CONF_RX,this,"Accepted View"));
if ( suggestedviewId == null && hasHigherPriority(merged.getMembers(),membership.getMembers()) ) {
startElection(false);
}
}
示例16
@Override
public void memberDisappeared(Member member) {
try {
membership.removeMember((MemberImpl)member);
super.memberDisappeared(member);
try {
fireInterceptorEvent(new CoordinationEvent(CoordinationEvent.EVT_MBR_DEL,this,"Member remove("+member.getName()+")"));
if ( started && (isCoordinator() || isHighest()) )
startElection(true); //to do, if a member disappears, only the coordinator can start
}catch ( ChannelException x ) {
log.error("Unable to start election when member was removed.",x);
}
}finally {
}
}
示例17
@Override
public void heartbeat() {
try {
MemberImpl local = (MemberImpl)getLocalMember(false);
if ( view != null && (Arrays.diff(view,membership,local).length != 0 || Arrays.diff(membership,view,local).length != 0) ) {
if ( isHighest() ) {
fireInterceptorEvent(new CoordinationEvent(CoordinationEvent.EVT_START_ELECT, this,
"Heartbeat found inconsistency, restart election"));
startElection(true);
}
}
} catch ( Exception x ){
log.error("Unable to perform heartbeat.",x);
} finally {
super.heartbeat();
}
}
示例18
public byte[] getDataPackage(byte[] data, int offset) {
byte[] addr = ((MemberImpl)address).getData(false);
XByteBuffer.toBytes(options,data,offset);
offset += 4; //options
XByteBuffer.toBytes(timestamp,data,offset);
offset += 8; //timestamp
XByteBuffer.toBytes(uniqueId.length,data,offset);
offset += 4; //uniqueId.length
System.arraycopy(uniqueId,0,data,offset,uniqueId.length);
offset += uniqueId.length; //uniqueId data
XByteBuffer.toBytes(addr.length,data,offset);
offset += 4; //addr.length
System.arraycopy(addr,0,data,offset,addr.length);
offset += addr.length; //addr data
XByteBuffer.toBytes(message.getLength(),data,offset);
offset += 4; //message.length
System.arraycopy(message.getBytesDirect(),0,data,offset,message.getLength());
offset += message.getLength(); //message data
return data;
}
示例19
public static ChannelData getDataFromPackage(byte[] b) {
ChannelData data = new ChannelData(false);
int offset = 0;
data.setOptions(XByteBuffer.toInt(b,offset));
offset += 4; //options
data.setTimestamp(XByteBuffer.toLong(b,offset));
offset += 8; //timestamp
data.uniqueId = new byte[XByteBuffer.toInt(b,offset)];
offset += 4; //uniqueId length
System.arraycopy(b,offset,data.uniqueId,0,data.uniqueId.length);
offset += data.uniqueId.length; //uniqueId data
byte[] addr = new byte[XByteBuffer.toInt(b,offset)];
offset += 4; //addr length
System.arraycopy(b,offset,addr,0,addr.length);
data.setAddress(MemberImpl.getMember(addr));
offset += addr.length; //addr data
int xsize = XByteBuffer.toInt(b,offset);
//data.message = new XByteBuffer(new byte[xsize],false);
data.message = BufferPool.getBufferPool().getBuffer(xsize,false);
offset += 4; //message length
System.arraycopy(b,offset,data.message.getBytesDirect(),0,xsize);
data.message.append(b,offset,xsize);
offset += xsize; //message data
return data;
}
示例20
public void parse() {
//header
int offset = 16;
//leader
int ldrLen = XByteBuffer.toInt(buf.getBytesDirect(),offset);
offset += 4;
byte[] ldr = new byte[ldrLen];
System.arraycopy(buf.getBytesDirect(),offset,ldr,0,ldrLen);
leader = MemberImpl.getMember(ldr);
offset += ldrLen;
//source
int srcLen = XByteBuffer.toInt(buf.getBytesDirect(),offset);
offset += 4;
byte[] src = new byte[srcLen];
System.arraycopy(buf.getBytesDirect(),offset,src,0,srcLen);
source = MemberImpl.getMember(src);
offset += srcLen;
//view
int mbrCount = XByteBuffer.toInt(buf.getBytesDirect(),offset);
offset += 4;
view = new Member[mbrCount];
for (int i=0; i<view.length; i++ ) {
int mbrLen = XByteBuffer.toInt(buf.getBytesDirect(),offset);
offset += 4;
byte[] mbr = new byte[mbrLen];
System.arraycopy(buf.getBytesDirect(), offset, mbr, 0, mbrLen);
view[i] = MemberImpl.getMember(mbr);
offset += mbrLen;
}
//id
this.id = new UniqueId(buf.getBytesDirect(),offset,16);
offset += 16;
type = new byte[16];
System.arraycopy(buf.getBytesDirect(), offset, type, 0, type.length);
offset += 16;
}
示例21
/**
* Deserializes a ChannelData object from a byte array
* @param xbuf byte[]
* @return ChannelData
*/
public static ChannelData getDataFromPackage(XByteBuffer xbuf) {
ChannelData data = new ChannelData(false);
int offset = 0;
data.setOptions(XByteBuffer.toInt(xbuf.getBytesDirect(),offset));
offset += 4; //options
data.setTimestamp(XByteBuffer.toLong(xbuf.getBytesDirect(),offset));
offset += 8; //timestamp
data.uniqueId = new byte[XByteBuffer.toInt(xbuf.getBytesDirect(),offset)];
offset += 4; //uniqueId length
System.arraycopy(xbuf.getBytesDirect(),offset,data.uniqueId,0,data.uniqueId.length);
offset += data.uniqueId.length; //uniqueId data
//byte[] addr = new byte[XByteBuffer.toInt(xbuf.getBytesDirect(),offset)];
int addrlen = XByteBuffer.toInt(xbuf.getBytesDirect(),offset);
offset += 4; //addr length
//System.arraycopy(xbuf.getBytesDirect(),offset,addr,0,addr.length);
data.setAddress(MemberImpl.getMember(xbuf.getBytesDirect(),offset,addrlen));
//offset += addr.length; //addr data
offset += addrlen;
int xsize = XByteBuffer.toInt(xbuf.getBytesDirect(),offset);
offset += 4; //xsize length
System.arraycopy(xbuf.getBytesDirect(),offset,xbuf.getBytesDirect(),0,xsize);
xbuf.setLength(xsize);
data.message = xbuf;
return data;
}
示例22
public static void main(String[] args) throws Exception {
Member mbr = new MemberImpl("localhost", 9999, 0);
ChannelData data = new ChannelData();
data.setAddress(mbr);
byte[] buf = new byte[8192 * 4];
data.setMessage(new XByteBuffer(buf, false));
buf = XByteBuffer.createDataPackage(data);
len = buf.length;
NioReceiver receiver = new NioReceiver();
receiver.setPort(9999);
receiver.setHost("localhost");
MyList list = new MyList();
receiver.setMessageListener(list);
receiver.start();
System.out.println("Listening on 9999");
while (true) {
try {
synchronized (mutex) {
mutex.wait(5000);
if ( start != 0 ) {
System.out.println("Throughput " + df.format(mb / seconds) + " MB/seconds, messages "+count+" accepts "+accept+", total "+mb+" MB.");
}
}
}catch (Throwable x) {
x.printStackTrace();
}
}
}
示例23
public void init() throws Exception {
selector = Selector.open();
mbr = new MemberImpl("localhost",4444,0);
NioSender sender = new NioSender();
sender.setDestination(mbr);
sender.setDirectBuffer(true);
sender.setSelector(selector);
sender.setMessage(XByteBuffer.createDataPackage(getMessage(mbr)));
sender.connect();
}
示例24
/**
* @deprecated Unused - will be removed in 8.0.x
*/
@Deprecated
protected Member[] readMembers(ObjectInput in) throws IOException {
int nodecount = in.readInt();
Member[] members = new Member[nodecount];
for ( int i=0; i<members.length; i++ ) {
byte[] d = new byte[in.readInt()];
in.readFully(d);
if (d.length > 0) members[i] = MemberImpl.getMember(d);
}
return members;
}
示例25
/**
* @deprecated Unused - will be removed in 8.0.x
*/
@Deprecated
protected void writeMembers(ObjectOutput out,Member[] members) throws IOException {
if ( members == null ) members = new Member[0];
out.writeInt(members.length);
for (int i=0; i<members.length; i++ ) {
if ( members[i] != null ) {
byte[] d = members[i] != null ? ( (MemberImpl)members[i]).getData(false) : new byte[0];
out.writeInt(d.length);
out.write(d);
}
}
}
示例26
private CoordinationMessage createElectionMsg(MemberImpl local, MemberImpl[] others, MemberImpl leader) {
Membership m = new Membership(local,AbsoluteOrder.comp,true);
Arrays.fill(m,others);
MemberImpl[] mbrs = m.getMembers();
m.reset();
CoordinationMessage msg = new CoordinationMessage(leader, local, mbrs,new UniqueId(UUIDGenerator.randomUUID(true)), COORD_REQUEST);
return msg;
}
示例27
public Member getNextInLine(MemberImpl local, MemberImpl[] others) {
MemberImpl result = null;
for ( int i=0; i<others.length; i++ ) {
}
return result;
}
示例28
public ChannelData createData(CoordinationMessage msg, MemberImpl local) {
msg.write();
ChannelData data = new ChannelData(true);
data.setAddress(local);
data.setMessage(msg.getBuffer());
data.setOptions(Channel.SEND_OPTIONS_USE_ACK);
data.setTimestamp(System.currentTimeMillis());
return data;
}
示例29
protected Membership mergeOnArrive(CoordinationMessage msg, Member sender) {
fireInterceptorEvent(new CoordinationEvent(CoordinationEvent.EVT_PRE_MERGE,this,"Pre merge"));
MemberImpl local = (MemberImpl)getLocalMember(false);
Membership merged = new Membership(local,AbsoluteOrder.comp,true);
Arrays.fill(merged,msg.getMembers());
Arrays.fill(merged,getMembers());
Member[] diff = Arrays.diff(merged,membership,local);
for ( int i=0; i<diff.length; i++ ) {
if (!alive(diff[i])) merged.removeMember((MemberImpl)diff[i]);
else memberAdded(diff[i],false);
}
fireInterceptorEvent(new CoordinationEvent(CoordinationEvent.EVT_POST_MERGE,this,"Post merge"));
return merged;
}
示例30
protected void handleToken(CoordinationMessage msg, Member sender,Membership merged) throws ChannelException {
MemberImpl local = (MemberImpl)getLocalMember(false);
if ( local.equals(msg.getSource()) ) {
//my message msg.src=local
handleMyToken(local, msg, sender,merged);
} else {
handleOtherToken(local, msg, sender,merged);
}
}
