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/*
* @(#)ClusterConsumerInfo.java 1.11 07/23/07
*/
package com.sun.messaging.jmq.jmsserver.multibroker.raptor;
import java.util.*;
import java.io.*;
import java.nio.*;
import com.sun.messaging.jmq.io.Status;
import com.sun.messaging.jmq.io.GPacket;
import com.sun.messaging.jmq.io.SysMessageID;
import com.sun.messaging.jmq.util.log.Logger;
import com.sun.messaging.jmq.util.selector.SelectorFormatException;
import com.sun.messaging.jmq.jmsserver.Globals;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
import com.sun.messaging.jmq.jmsserver.core.Consumer;
import com.sun.messaging.jmq.jmsserver.core.Subscription;
import com.sun.messaging.jmq.jmsserver.core.Destination;
import com.sun.messaging.jmq.jmsserver.core.ConsumerUID;
import com.sun.messaging.jmq.jmsserver.core.DestinationUID;
import com.sun.messaging.jmq.jmsserver.core.BrokerAddress;
import com.sun.messaging.jmq.jmsserver.service.ConnectionUID;
import com.sun.messaging.jmq.jmsserver.persist.ChangeRecordInfo;
import com.sun.messaging.jmq.jmsserver.multibroker.Cluster;
import com.sun.messaging.jmq.jmsserver.multibroker.raptor.ProtocolGlobals;
import com.sun.messaging.jmq.jmsserver.util.ConsumerAlreadyAddedException;
/**
* An instance of this class is intended to be used one direction only
* either Consumers -> GPacket or GPacket -> Consumers (see assertions)
*/
public class ClusterConsumerInfo
{
private Logger logger = Globals.getLogger();
private static final long ConsumerVersionUID = 99353142765567461L;
private Cluster c;
private Collection consumers = null;
private Map pendingMsgs = null;
private boolean cleanup = false;
private GPacket pkt = null;
private ClusterConsumerInfo(Collection consumers, Cluster c) {
this.consumers = consumers;
this.c = c;
}
private ClusterConsumerInfo(Consumer consumer, Map pendingMsgs, boolean cleanup, Cluster c) {
Set s = new HashSet();
s.add(consumer);
this.consumers = s;
this.c = c;
this.pendingMsgs = pendingMsgs;
this.cleanup = cleanup;
}
private ClusterConsumerInfo(GPacket pkt, Cluster c) {
this.pkt = pkt;
this.c = c;
}
public static ClusterConsumerInfo newInstance(Collection consumers, Cluster c) {
return new ClusterConsumerInfo(consumers, c);
}
public static ClusterConsumerInfo newInstance(Consumer consumer, Cluster c) {
return new ClusterConsumerInfo(consumer, null, false, c);
}
public static ClusterConsumerInfo newInstance(Consumer consumer, Map pendingMsgs,
boolean cleanup, Cluster c) {
return new ClusterConsumerInfo(consumer, pendingMsgs, cleanup, c);
}
public static ClusterConsumerInfo newInstance(GPacket pkt, Cluster c) {
return new ClusterConsumerInfo(pkt, c);
}
public GPacket getGPacket(short protocol) {
return getGPacket(protocol, -1, null);
}
public GPacket getGPacket(short protocol, int subtype) {
return getGPacket(protocol, subtype, null);
}
public GPacket getGPacket(short protocol, int subtype, BrokerAddress broker) {
assert ( consumers != null );
assert ( protocol == ProtocolGlobals.G_NEW_INTEREST ||
protocol == ProtocolGlobals.G_INTEREST_UPDATE );
if (protocol == ProtocolGlobals.G_INTEREST_UPDATE) {
assert ( subtype == ProtocolGlobals.G_NEW_PRIMARY_INTEREST || // not effectively used ?
subtype == ProtocolGlobals.G_REM_INTEREST ||
subtype == ProtocolGlobals.G_DURABLE_DETACH );
}
GPacket gp = GPacket.getInstance();
gp.setType(protocol);
gp.putProp("C", new Integer(consumers.size()));
if (broker != null && pendingMsgs != null && pendingMsgs.size() > 0) {
List l = (List)pendingMsgs.get(broker);
if (l != null) {
StringBuffer sb = new StringBuffer();
Iterator itr = l.iterator();
while (itr.hasNext()) {
SysMessageID sysid = (SysMessageID)itr.next();
sb.append(sysid).append(" ");
}
gp.putProp("pendingMessages", new String(sb.toString()));
}
}
if (cleanup) gp.putProp("cleanup", new Boolean(true));
if (c != null) c.marshalBrokerAddress(c.getSelfAddress(), gp);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
switch (protocol) {
case ProtocolGlobals.G_NEW_INTEREST:
try {
int i = 0;
Iterator itr = consumers.iterator();
while (itr.hasNext()) {
i++;
Consumer c = (Consumer) itr.next();
gp.putProp(String.valueOf(c.getConsumerUID().longValue())+":"
+Consumer.PREFETCH,
new Integer(c.getPrefetch()));
writeConsumer(c, dos);
if (!(c instanceof Subscription)) {
continue;
}
ChangeRecordInfo cri =
((Subscription)c).getCurrentChangeRecordInfo(
ProtocolGlobals.G_NEW_INTEREST);
if (cri == null) {
continue;
}
gp.putProp("shareccSeq"+i, cri.getSeq());
gp.putProp("shareccUUID"+i, cri.getUUID());
gp.putProp("shareccResetUUID"+i, cri.getResetUUID());
}
dos.flush();
bos.flush();
}
catch (IOException e) { /* Ignore */ }
gp.setPayload(ByteBuffer.wrap(bos.toByteArray()));
break;
case ProtocolGlobals.G_INTEREST_UPDATE:
gp.putProp("T", new Integer(subtype));
try {
Iterator itr = consumers.iterator();
while (itr.hasNext()) {
Consumer c = (Consumer)itr.next();
writeConsumerUID(c.getConsumerUID(), dos);
}
dos.flush();
bos.flush();
}
catch (IOException e) { /* Ignore */ }
gp.setPayload(ByteBuffer.wrap(bos.toByteArray()));
break;
}
return gp;
}
public int getConsumerCount() {
assert ( pkt != null );
return ((Integer)pkt.getProp("C")).intValue();
}
public ChangeRecordInfo getShareccInfo(int i) {
if (pkt.getProp("shareccSeq"+i) == null) {
return null;
}
ChangeRecordInfo cri = new ChangeRecordInfo();
cri.setSeq((Long)pkt.getProp("shareccSeq"+i));
cri.setUUID((String)pkt.getProp("shareccUUID"+i));
cri.setResetUUID((String)pkt.getProp("shareccResetUUID"+i));
cri.setType(pkt.getType());
return cri;
}
public int getSubtype() {
assert ( pkt != null );
short type = pkt.getType();
assert ( type == ProtocolGlobals.G_INTEREST_UPDATE );
return ((Integer)pkt.getProp("T")).intValue();
}
public Iterator getConsumers() throws Exception {
assert ( pkt != null );
short type = pkt.getType();
assert ( type == ProtocolGlobals.G_NEW_INTEREST );
return new ConsumerIterator(pkt, pkt.getPayload().array(), getConsumerCount(),
c.unmarshalBrokerAddress(pkt));
}
public Iterator getConsumerUIDs() throws Exception {
assert ( pkt != null );
short type = pkt.getType();
assert ( type == ProtocolGlobals.G_INTEREST_UPDATE );
return new ProtocolConsumerUIDIterator(pkt.getPayload().array(), getConsumerCount(),
c.unmarshalBrokerAddress(pkt));
}
public Set getPendingMessages() {
assert ( pkt != null );
String sysids = (String)pkt.getProp("pendingMessages");
if (sysids == null) return null;
LinkedHashSet pms = new LinkedHashSet();
StringTokenizer st = new StringTokenizer(sysids, " ", false);
while (st.hasMoreTokens()) {
String s = (String)st.nextToken();
if (s != null && !s.trim().equals("")) {
pms.add(SysMessageID.get(s.trim()));
}
}
return pms;
}
public boolean isCleanup() {
assert ( pkt != null );
Boolean b = (Boolean)pkt.getProp("cleanup");
if (b != null) return b.booleanValue();
return false;
}
public boolean isConfigSyncResponse() {
assert ( pkt != null );
boolean b = false;
if (pkt.getProp("M") != null) {
b = ((Boolean) pkt.getProp("M")).booleanValue();
}
return b;
}
public boolean needReply() {
assert ( pkt != null );
return pkt.getBit(pkt.A_BIT);
}
public static void writeConsumer(Consumer consumer, DataOutputStream dos)
throws IOException
{
String destName = consumer.getDestinationUID().getName();
ConsumerUID id = consumer.getConsumerUID();
String durableName = null;
String clientID = null;
String selstr = consumer.getSelectorStr();
boolean noLocalDelivery = consumer.getNoLocal();
boolean isQueue = consumer.getDestinationUID().isQueue();
boolean isReady = true;
boolean setMaxCnt = false;
int position = consumer.getLockPosition();;
int maxcnt = 1;
if (consumer instanceof Subscription ) {
Subscription s = (Subscription)consumer;
maxcnt = s.getMaxNumActiveConsumers();
setMaxCnt = true;
durableName = s.getDurableName();
clientID = s.getClientID();
if (! s.isActive())
isReady = false;
}
dos.writeLong(ConsumerVersionUID); // version
dos.writeUTF(destName);
dos.writeBoolean(id != null);
if (id != null) {
writeConsumerUID(id, dos);
}
dos.writeBoolean(clientID != null);
if (clientID != null) {
dos.writeUTF(clientID);
}
dos.writeBoolean(durableName != null);
if (durableName != null) {
dos.writeUTF(durableName);
}
dos.writeBoolean(selstr != null);
if (selstr != null) {
dos.writeUTF(selstr);
}
dos.writeBoolean(isQueue);
dos.writeBoolean(noLocalDelivery);
dos.writeBoolean(isReady);
dos.writeBoolean(setMaxCnt);
if (setMaxCnt)
dos.writeInt(maxcnt);
dos.writeInt(position);
}
public static Consumer readConsumer(DataInputStream dis) throws IOException
{
Logger logger = Globals.getLogger();
ConsumerUID id = null;
String destName = null;
String clientID = null;
String durableName = null;
String selstr = null;
boolean isQueue;
boolean noLocalDelivery;
boolean consumerReady;
int sharedcnt;
int position;
long ver = dis.readLong(); // version
if (ver != ConsumerVersionUID) {
throw new IOException("Wrong Consumer Version " + ver + " expected " + ConsumerVersionUID);
}
destName = dis.readUTF();
boolean hasId = dis.readBoolean();
if (hasId) {
id = readConsumerUID(dis);
}
boolean hasClientID = dis.readBoolean();
if (hasClientID) {
clientID = dis.readUTF();
}
boolean hasDurableName = dis.readBoolean();
if (hasDurableName) {
durableName = dis.readUTF();
}
boolean hasSelector = dis.readBoolean();
if (hasSelector) {
selstr = dis.readUTF();
}
isQueue = dis.readBoolean();
noLocalDelivery = dis.readBoolean();
consumerReady = dis.readBoolean();
boolean sharedSet = false;
sharedcnt = 1;
try {
sharedSet = dis.readBoolean();
if (sharedSet == true) {
sharedcnt = dis.readInt();
}
} catch (Exception ex) {
// do nothing prevents failures with old brokers
}
position = -1;
try {
position = dis.readInt();
} catch (Exception ex) {
// do nothing prevents failures with old brokers
}
try {
DestinationUID dest = DestinationUID.getUID(destName, isQueue);
if (durableName != null) {
Subscription sub = Subscription.findCreateDurableSubscription
(clientID,durableName, dest, selstr, noLocalDelivery, false, id);
if (sub != null)
sub.setMaxNumActiveConsumers(sharedcnt);
return sub;
}
else {
if (sharedSet) { /* non-durable subscriber */
Subscription sub = Subscription.findCreateNonDurableSubscription(
clientID, selstr, dest, noLocalDelivery, id );
if (sub != null)
sub.setMaxNumActiveConsumers(sharedcnt);
return sub;
} else {
Consumer c = Consumer.newConsumer(dest, selstr, noLocalDelivery, id);
c.setLockPosition(position);
return c;
}
}
} catch (SelectorFormatException ex) {
logger.log(Logger.INFO,"Internal Error: Got bad selector["+selstr + "] " , ex);
IOException ioe = new IOException(ex.getMessage());
ioe.initCause(ex);
throw ioe;
} catch (BrokerException ex) {
if (ex.getStatusCode() == Status.CONFLICT ||
ex instanceof ConsumerAlreadyAddedException) {
logger.log(Logger.WARNING, ex.getMessage());
} else {
logger.logStack(Logger.WARNING, ex.getMessage(), ex);
}
IOException ioe = new IOException(ex.getMessage());
ioe.initCause(ex);
throw ioe;
}
}
public static void writeConsumerUID(ConsumerUID uid, DataOutputStream dos)
throws IOException
{
dos.writeLong(uid.longValue()); // UID write
dos.writeLong((uid.getConnectionUID() == null ? 0 :
uid.getConnectionUID().longValue()));
BrokerAddress brokeraddr= uid.getBrokerAddress();
if (brokeraddr == null) brokeraddr = Globals.getMyAddress();
if (brokeraddr == null) {
// XXX Revisit and cleanup : This method may be called
// before cluster initialization only during persistent
// store upgrade. i.e. from -
// FalconProtocol.upgradeConfigChangeRecord()
// At that time, Globals.getMyAddress() returns null.
// Hence this kludge...
try {
brokeraddr =
new com.sun.messaging.jmq.jmsserver.multibroker.fullyconnected.BrokerAddressImpl();
}
catch (Exception e) {}
}
brokeraddr.writeBrokerAddress(dos); // UID write
}
public static ConsumerUID readConsumerUID(DataInputStream dis)
throws IOException
{
long id = dis.readLong(); // UID write
ConnectionUID conuid = new ConnectionUID(dis.readLong());
BrokerAddress tempaddr = Globals.getMyAddress();
BrokerAddress brokeraddr = (BrokerAddress)tempaddr.clone();
brokeraddr.readBrokerAddress(dis); // UID write
ConsumerUID cuid = new ConsumerUID(id);
cuid.setConnectionUID(conuid);
cuid.setBrokerAddress(brokeraddr);
return cuid;
}
public static GPacket getReplyGPacket(short protocol, int status) {
GPacket gp = GPacket.getInstance();
gp.setType(protocol);
gp.putProp("S", new Integer(status));
return gp;
}
}
class ConsumerIterator implements Iterator
{
private int count = 0;
private int count_read = 0;
private DataInputStream dis = null;
private BrokerAddress from = null;
private GPacket gp = null;
public ConsumerIterator(GPacket gp, byte[] payload, int count, BrokerAddress from) {
ByteArrayInputStream bis = new ByteArrayInputStream(payload);
dis = new DataInputStream(bis);
this.count = count;
this.count_read = 0;
this.from = from;
this.gp = gp;
}
public boolean hasNext() {
if (count_read < 0) throw new IllegalStateException("ConsumerUID");
return count_read < count;
}
/**
* Caller must catch RuntimeException and getCause
*/
public Object next() throws RuntimeException {
try {
Consumer c = ClusterConsumerInfo.readConsumer(dis);
Integer prefetch = (Integer)gp.getProp(String.valueOf(
c.getConsumerUID().longValue())+
":"+Consumer.PREFETCH);
if (prefetch != null) c.setRemotePrefetch(prefetch.intValue());
if (from != null) c.getConsumerUID().setBrokerAddress(from);
count_read++;
return c;
} catch (IOException e) {
Throwable ex = e.getCause();
if (ex instanceof ConsumerAlreadyAddedException) {
count_read++;
throw new RuntimeException(ex);
}
count_read = -1;
throw new RuntimeException(e);
}
}
public void remove() {
throw new UnsupportedOperationException("Not supported");
}
}