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package com.sun.messaging.jmq.jmsserver.persist.file;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import com.sun.messaging.jmq.jmsserver.core.BrokerAddress;
import com.sun.messaging.jmq.jmsserver.data.BaseTransaction;
import com.sun.messaging.jmq.jmsserver.data.LocalTransaction;
import com.sun.messaging.jmq.jmsserver.data.TransactionAcknowledgement;
import com.sun.messaging.jmq.jmsserver.data.TransactionState;
import com.sun.messaging.jmq.jmsserver.data.TransactionWork;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
public abstract class LocalTransactionEvent extends TransactionEvent {
public static final byte Type1PCommitEvent = 0;
public static final byte Type2PPrepareEvent = 1;
public static final byte Type2PCompleteEvent = 2;
LocalTransaction localTransaction;
int getType() {
return BaseTransaction.LOCAL_TRANSACTION_TYPE;
}
abstract int getSubType();
static TransactionEvent create(byte subtype) {
TransactionEvent result = null;
switch (subtype) {
case Type1PCommitEvent:
result = new LocalTransaction1PCommitEvent();
break;
case Type2PPrepareEvent:
result = new LocalTransaction2PPrepareEvent();
break;
case Type2PCompleteEvent:
result = new LocalTransaction2PCompleteEvent();
break;
default:
throw new UnsupportedOperationException();
}
return result;
}
public LocalTransaction getLocalTransaction() {
return localTransaction;
}
public void setLocalTransaction(LocalTransaction localTransaction) {
this.localTransaction = localTransaction;
}
}
class LocalTransaction1PCommitEvent extends LocalTransactionEvent {
int getSubType() {
return Type1PCommitEvent;
}
// no need to store transaction info as this will not be long lasting
// write transaction details
// write work
byte[] writeToBytes() throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
dos.writeByte(BaseTransaction.LOCAL_TRANSACTION_TYPE);
dos.writeByte(Type1PCommitEvent);
localTransaction.getTransactionDetails().writeContent(dos);
localTransaction.getTransactionWork().writeWork(dos);
byte[] data = bos.toByteArray();
dos.close();
bos.close();
return data;
}
void readFromBytes(byte[] data) throws IOException, BrokerException {
ByteArrayInputStream bais = new ByteArrayInputStream(data);
DataInputStream dis = new DataInputStream(bais);
localTransaction = new LocalTransaction();
dis.skip(2);
localTransaction.getTransactionDetails().readContent(dis);
TransactionWork work = new TransactionWork();
work.readWork(dis);
localTransaction.setTransactionWork(work);
dis.close();
bais.close();
}
}
class LocalTransaction2PPrepareEvent extends LocalTransactionEvent {
int getSubType() {
return Type2PPrepareEvent;
}
byte[] writeToBytes() throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
dos.writeByte(BaseTransaction.LOCAL_TRANSACTION_TYPE);
dos.writeByte(Type2PPrepareEvent);
localTransaction.getTransactionDetails().writeContent(dos);
localTransaction.getTransactionWork().writeWork(dos);
ByteArrayOutputStream baos2 = new ByteArrayOutputStream(1024);
ObjectOutputStream oos = new ObjectOutputStream(baos2);
oos.writeObject(localTransaction.getTransactionState());
oos.close();
byte[] data = baos2.toByteArray();
int length = data.length;
dos.writeInt(length);
dos.write(data);
baos2.close();
byte[] data2 = bos.toByteArray();
dos.close();
bos.close();
return data2;
}
void readFromBytes(byte[] data) throws IOException, BrokerException {
ByteArrayInputStream bais = new ByteArrayInputStream(data);
DataInputStream dis = new DataInputStream(bais);
localTransaction = new LocalTransaction();
dis.skip(2);
localTransaction.getTransactionDetails().readContent(dis);
TransactionWork work = new TransactionWork();
work.readWork(dis);
localTransaction.setTransactionWork(work);
// need to write transaction info here
int objectBodySize = dis.readInt();
byte[] objectBody = new byte[objectBodySize];
dis.read(objectBody);
ByteArrayInputStream bais2 = new ByteArrayInputStream(objectBody);
ObjectInputStream ois = new ObjectInputStream(bais2);
try {
TransactionState ts = (TransactionState) ois.readObject();
localTransaction.setTransactionState(ts);
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
ois.close();
bais2.close();
dis.close();
bais.close();
}
}
class LocalTransaction2PCompleteEvent extends LocalTransactionEvent {
int getSubType() {
return Type2PCompleteEvent;
}
byte[] writeToBytes() throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
dos.writeByte(BaseTransaction.LOCAL_TRANSACTION_TYPE);
dos.writeByte(Type2PCompleteEvent);
localTransaction.getTransactionDetails().writeContent(dos);
byte[] data = bos.toByteArray();
dos.close();
bos.close();
return data;
}
void readFromBytes(byte[] data) throws IOException, BrokerException {
ByteArrayInputStream bais = new ByteArrayInputStream(data);
DataInputStream dis = new DataInputStream(bais);
localTransaction = new LocalTransaction();
dis.skip(2);
localTransaction.getTransactionDetails().readContent(dis);
dis.close();
bais.close();
}
}