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package com.sun.messaging.bridge.service.jms.tx.log;
import java.io.*;
import java.util.Iterator;
import java.util.NoSuchElementException;
import java.util.Collection;
import com.sun.messaging.bridge.service.jms.tx.GlobalXid;
import com.sun.messaging.bridge.service.jms.tx.BranchXid;
import com.sun.messaging.bridge.service.jms.tx.XAParticipant;
/**
* @author amyk
*/
public class LogRecord implements Externalizable {
private GlobalXidDecision _gxidd = null;
private BranchXidDecision[] _bxidds = null;
public LogRecord() {}
public LogRecord(GlobalXid gxid,
Collection<XAParticipant> parties,
int decision)
throws Exception {
_gxidd = new GlobalXidDecision(gxid, decision);
_bxidds = new BranchXidDecision[parties.size()];
XAParticipant party = null;
Iterator<XAParticipant> itr = parties.iterator();
int i = 0;
while( itr.hasNext()) {
party = itr.next();
_bxidds[i] = new BranchXidDecision(party.getBranchXid(), decision);
i++;
}
}
public GlobalXid getGlobalXid() {
return _gxidd.getGlobalXid();
}
public int getGlobalDecision() {
return _gxidd.getGlobalDecision();
}
public BranchXidDecision[] getBranchXidDecisions() {
return _bxidds;
}
public int getBranchCount() {
return _bxidds.length;
}
public void setBranchHeurCommit(BranchXid bxid) throws Exception {
for (int i = 0; i < _bxidds.length; i++) {
if (_bxidds[i].getBranchXid().equals(bxid)) {
_bxidds[i].setBranchDecision(BranchXidDecision.HEUR_COMMIT);
}
}
throw new NoSuchElementException("Branch "+bxid+" not found in "+_gxidd);
}
public void setBranchHeurRollback(BranchXid bxid) throws Exception {
for (int i = 0; i < _bxidds.length; i++) {
if (_bxidds[i].getBranchXid().equals(bxid)) {
_bxidds[i].setBranchDecision(BranchXidDecision.HEUR_ROLLBACK);
}
}
throw new NoSuchElementException("Branch "+bxid+" not found in "+_gxidd);
}
public void setBranchHeurMixed(BranchXid bxid) throws Exception {
for (int i = 0; i < _bxidds.length; i++) {
if (_bxidds[i].getBranchXid().equals(bxid)) {
_bxidds[i].setBranchDecision(BranchXidDecision.HEUR_MIXED);
}
}
throw new NoSuchElementException("Branch "+bxid+" not found in "+_gxidd);
}
public boolean isHeuristicBranch(BranchXid bxid) throws Exception {
for (int i = 0; i < _bxidds.length; i++) {
if (_bxidds[i].getBranchXid().equals(bxid)) {
return (_bxidds[i].isHeuristic() || (_bxidds[i].getBranchDecision() != _gxidd.getGlobalDecision()));
}
}
throw new NoSuchElementException(
"Branch "+bxid+" not found in global transaction "+_gxidd);
}
public int getBranchDecision(BranchXid bxid) throws Exception {
for (int i = 0; i < _bxidds.length; i++) {
if (_bxidds[i].getBranchXid().equals(bxid)) {
return _bxidds[i].getBranchDecision();
}
}
throw new NoSuchElementException("Branch "+bxid+" not found in "+_gxidd);
}
public void setBranchDecision(BranchXid bxid, int d) throws Exception {
for (int i = 0; i < _bxidds.length; i++) {
if (_bxidds[i].getBranchXid().equals(bxid)) {
_bxidds[i].setBranchDecision(d);
}
}
throw new NoSuchElementException("Branch "+bxid+" not found in "+_gxidd);
}
protected void updateClientDataFromBranch(byte[] cd, BranchXid bxid) throws Exception {
for (int i = 0; i < _bxidds.length; i++) {
if (_bxidds[i].getBranchXid().equals(bxid)) {
cd[i] = (byte) _bxidds[i].getBranchDecision();
}
}
throw new NoSuchElementException(
"Branch "+bxid+" not found in global transaction "+_gxidd);
}
protected void updateBranchFromClientData(byte[] cd) throws Exception {
for (int i = 0; i < _bxidds.length; i++) {
_bxidds[i].setBranchDecision(cd[i]);
}
}
public void writeExternal(ObjectOutput out) throws IOException {
out.writeObject(_gxidd);
out.writeObject(_bxidds);
}
public void readExternal(ObjectInput in) throws IOException,
ClassNotFoundException {
_gxidd = (GlobalXidDecision)in.readObject();
_bxidds = (BranchXidDecision[])in.readObject();
for (int i = 0; i < _bxidds.length; i++) {
_bxidds[i].getBranchXid().setFormatId(
_gxidd.getGlobalXid().getFormatId());
_bxidds[i].getBranchXid().setGlobalTransactionId(
_gxidd.getGlobalXid().getGlobalTransactionId());
}
}
public byte[] toBytes() throws Exception {
ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
ObjectOutputStream bos = new ObjectOutputStream(baos);
bos.writeObject(this);
bos.close();
return baos.toByteArray();
}
public String toString() {
StringBuffer sb = new StringBuffer();
int i = 0;
for (i = 0; i <_bxidds.length; i++) {
if (i == 0) sb.append("[");
if (i > 0) sb.append(", ");
sb.append(_bxidds[i].toString());
sb.append(_bxidds[i].toString());
}
if (i > 0) sb.append("]");
return _gxidd.toString()+sb.toString();
}
}