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/*
* @(#)ClusterSubscriptionInfo.java 1.9 06/28/07
*/
package com.sun.messaging.jmq.jmsserver.multibroker.raptor;
import java.util.*;
import java.io.*;
import java.nio.*;
import com.sun.messaging.jmq.io.GPacket;
import com.sun.messaging.jmq.jmsserver.core.Consumer;
import com.sun.messaging.jmq.jmsserver.core.Subscription;
import com.sun.messaging.jmq.jmsserver.core.BrokerAddress;
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;
/**
* An instance of this class is intended to be used one direction only
* either Subscription/Consumer -> GPacket or GPacket -> Subscription/Consumer
* (see assertions)
*/
public class ClusterSubscriptionInfo
{
private Subscription subscription = null;
private Consumer consumer = null;
private Cluster c = null;
private GPacket pkt = null;
private ClusterSubscriptionInfo(Subscription sub) {
this.subscription = sub;
}
private ClusterSubscriptionInfo(Subscription sub, Consumer cs, Cluster c) {
this.subscription = sub;
this.consumer = cs;
this.c = c;
}
private ClusterSubscriptionInfo(GPacket pkt) {
this(pkt, null);
}
private ClusterSubscriptionInfo(GPacket pkt, Cluster c) {
this.pkt = pkt;
this.c = c;
}
public static ClusterSubscriptionInfo newInstance(Subscription sub) {
return new ClusterSubscriptionInfo(sub);
}
public static ClusterSubscriptionInfo newInstance(Subscription sub, Consumer cs, Cluster c) {
return new ClusterSubscriptionInfo(sub, cs, c);
}
public static ClusterSubscriptionInfo newInstance(GPacket pkt) {
return new ClusterSubscriptionInfo(pkt);
}
public static ClusterSubscriptionInfo newInstance(GPacket pkt, Cluster c) {
return new ClusterSubscriptionInfo(pkt, c);
}
public GPacket getGPacket(short protocol) {
return getGPacket(protocol, false);
}
public GPacket getGPacket(short protocol, boolean changeRecord) {
assert ( subscription != null );
assert ( protocol == ProtocolGlobals.G_NEW_INTEREST ||
protocol == ProtocolGlobals.G_DURABLE_ATTACH ||
protocol == ProtocolGlobals.G_REM_DURABLE_INTEREST );
if (changeRecord ) {
assert ( protocol == ProtocolGlobals.G_NEW_INTEREST ||
protocol == ProtocolGlobals.G_REM_DURABLE_INTEREST );
}
GPacket gp = null;
switch (protocol) {
case ProtocolGlobals.G_NEW_INTEREST:
ClusterConsumerInfo cci = ClusterConsumerInfo.newInstance(subscription, null);
gp = cci.getGPacket(protocol);
if (changeRecord) {
gp.putProp("N", subscription.getDurableName());
gp.putProp("I", subscription.getClientID());
gp.putProp("M", Boolean.valueOf(true));
} else {
ChangeRecordInfo cri = subscription.getCurrentChangeRecordInfo(
ProtocolGlobals.G_NEW_INTEREST);
if (cri != null) {
gp.putProp("shareccSeq"+1, cri.getSeq());
gp.putProp("shareccUUID"+1, cri.getUUID());
gp.putProp("shareccResetUUID"+1, cri.getResetUUID());
}
}
break;
case ProtocolGlobals.G_DURABLE_ATTACH:
{
assert ( consumer != null );
gp = GPacket.getInstance();
gp.setType(protocol);
String dname = subscription.getDurableName();
if (dname != null) {
gp.putProp("N", new String(dname));
}
String clientID = subscription.getClientID();
gp.putProp("I", new String(clientID));
gp.putProp(String.valueOf(consumer.getConsumerUID().longValue())+":"+
Consumer.PREFETCH, new Integer(consumer.getPrefetch()));
gp.putProp("allowsNonDurable", new Boolean(true));
c.marshalBrokerAddress(c.getSelfAddress(), gp);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
try {
ClusterConsumerInfo.writeConsumer(consumer, dos);
dos.flush();
bos.flush();
}
catch (IOException e) { /* Ignore */ }
gp.setPayload(ByteBuffer.wrap(bos.toByteArray()));
}
break;
case ProtocolGlobals.G_REM_DURABLE_INTEREST:
{
gp = GPacket.getInstance();
gp.setType(protocol);
gp.putProp("C", new Integer(1));
String dname = subscription.getDurableName();
String clientID = subscription.getClientID();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
try {
dos.writeUTF(dname);
dos.writeUTF(clientID);
dos.flush();
bos.flush();
}
catch (IOException e) { /* Ignore */ }
gp.setPayload(ByteBuffer.wrap(bos.toByteArray()));
if (changeRecord) {
gp.putProp("N", new String(dname));
gp.putProp("I", new String(clientID));
gp.putProp("M", new Boolean(true));
} else {
ChangeRecordInfo cri = subscription.getCurrentChangeRecordInfo(
ProtocolGlobals.G_REM_DURABLE_INTEREST);
if (cri != null) {
gp.putProp("shareccSeq"+1, cri.getSeq());
gp.putProp("shareccUUID"+1, cri.getUUID());
gp.putProp("shareccResetUUID"+1, cri.getResetUUID());
}
}
}
break;
}
return gp;
}
public int getConsumerCount() {
assert ( pkt != null);
short type = pkt.getType();
assert ( type == ProtocolGlobals.G_NEW_INTEREST ||
type == ProtocolGlobals.G_INTEREST_UPDATE ||
type == ProtocolGlobals.G_REM_DURABLE_INTEREST );
int count = ((Integer)pkt.getProp("C")).intValue();
assert ( count == 1);
return count;
}
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 boolean isConfigSyncResponse() {
assert ( pkt != null );
boolean b = false;
if (pkt.getProp("M") != null) {
b = ((Boolean) pkt.getProp("M")).booleanValue();
}
return b;
}
public String getDurableName() {
assert ( pkt != null );
return (String)pkt.getProp("N");
}
public String getClientID() {
assert ( pkt != null );
return (String)pkt.getProp("I");
}
public Boolean allowsNonDurable() {
assert ( pkt != null );
return (Boolean)pkt.getProp("allowsNonDurable");
}
public Consumer getConsumer() throws Exception {
assert ( pkt != null );
short type = pkt.getType();
assert ( type == ProtocolGlobals.G_DURABLE_ATTACH );
ByteArrayInputStream bis = new ByteArrayInputStream(pkt.getPayload().array());
DataInputStream dis = new DataInputStream(bis);
Consumer cs = ClusterConsumerInfo.readConsumer(dis);
Integer prefetch = (Integer)pkt.getProp(String.valueOf(
cs.getConsumerUID().longValue())+
":"+Consumer.PREFETCH);
if (prefetch != null) cs.setRemotePrefetch(prefetch.intValue());
BrokerAddress from = c.unmarshalBrokerAddress(pkt);
if (from != null) cs.getConsumerUID().setBrokerAddress(from);
return cs;
}
public Iterator getSubscriptions() {
assert ( pkt != null );
short type = pkt.getType();
assert ( type == ProtocolGlobals.G_REM_DURABLE_INTEREST );
return new SubscriptionIterator(pkt.getPayload().array(), getConsumerCount());
}
public boolean needReply() {
assert ( pkt != null );
return pkt.getBit(pkt.A_BIT);
}
public static GPacket getReplyGPacket(short protocol, int status) {
GPacket gp = GPacket.getInstance();
gp.setType(protocol);
gp.putProp("S", new Integer(status));
return gp;
}
}
class SubscriptionIterator implements Iterator
{
private int count = 0;
private int count_read = 0;
private DataInputStream dis = null;
public SubscriptionIterator(byte[] payload, int count) {
ByteArrayInputStream bis = new ByteArrayInputStream(payload);
dis = new DataInputStream(bis);
this.count = count;
this.count_read = 0;
}
public boolean hasNext() {
if (count_read < 0) throw new IllegalStateException("SubscriptionIterator");
return count_read < count;
}
/**
* Caller must catch RuntimeException and getCause
*/
public Object next() throws RuntimeException {
try {
String dname = dis.readUTF();
String cname = dis.readUTF();
Subscription sub = Subscription.findDurableSubscription(cname, dname);
count_read++;
return sub;
} catch (IOException e) {
count_read = -1;
throw new RuntimeException(e);
}
}
public void remove() {
throw new UnsupportedOperationException("Not supported");
}
}