/** @throws Exception */
public void testDoCommit() throws Exception {
Xid xid = new XidImpl();
xares_.start(xid, XAResource.TMNOFLAGS);
xares_.end(xid, XAResource.TMSUCCESS);
xares_.commit(xid, true);
assertEquals("1", true, con_.getAutoCommit());
}
private boolean runXaResourceCommitTx() throws HeuristicMixedException {
Collection<XAResource> resources = getEnlistedResources();
for (XAResource res : resources) {
try {
res.commit(xid, false); // todo we only support one phase commit for now, change this!!!
} catch (XAException e) {
log.warn("exception while committing", e);
throw new HeuristicMixedException(e.getMessage());
}
}
return true;
}
/** commit the resource */
public void commit(Xid xid, boolean onePhase) throws XAException {
boolean logFiner = log.isLoggable(Level.FINER);
try {
int endFlags = _endFlags;
_endFlags = -1;
if (endFlags != -1 && _isXATransaction) {
boolean isValid = false;
try {
endResource(xid, endFlags);
isValid = true;
} finally {
if (!isValid) _xaResource.rollback(xid);
}
}
if (_isXATransaction) {
if (logFiner) {
log.finer("commit-XA" + (onePhase ? "-1p: " : ": ") + xid + " " + _xaResource);
}
try {
_xaResource.commit(xid, onePhase);
} catch (XAException e) {
if (logFiner) log.finer("commit-XA failed: " + _xaResource + " " + e);
throw e;
}
} else if (_localTransaction != null) {
if (logFiner) log.finer("commit-local: " + _localTransaction);
try {
_localTransaction.commit();
} catch (ResourceException e) {
if (logFiner) log.finer("commit failed: " + _localTransaction + " " + e);
throw new XAExceptionWrapper(e);
} finally {
_isLocalTransaction = false;
}
} else {
if (logFiner) log.finer("commit for resource with no XA support: " + this);
}
} finally {
if (_xaResource != null) _isXATransaction = true;
clearXid();
}
}
protected int doCommit(Xid xid, int cPhase) throws XAException {
int returnVal = -1;
synchronized (physicalConn) {
synchronized (this) {
int command = cPhase != 1 ? 2 : 4;
returnVal = doTransaction(xid, 1, command);
if (cPhase == 1 && (returnVal == 2 || returnVal == 4)) {
returnVal = 0;
} else if (cPhase != 1 && returnVal == 5) {
returnVal = 0;
} else if (returnVal == 8) {
throw new XAException(106);
}
if (returnVal == 24756) {
returnVal = kputxrec(xid, 1, timeout + 120);
} else if (returnVal == 24780) {
OracleXADataSource oxds = null;
XAConnection pc = null;
try {
oxds = new OracleXADataSource();
oxds.setURL(physicalConn.url);
oxds.setUser(physicalConn.user);
physicalConn.getPasswordInternal(this);
oxds.setPassword(password);
pc = oxds.getXAConnection();
XAResource oxar = pc.getXAResource();
oxar.commit(xid, cPhase == 1);
returnVal = 0;
} catch (SQLException e) {
throw new XAException(-6);
} finally {
try {
if (pc != null) {
pc.close();
}
if (oxds != null) {
oxds.close();
}
} catch (Exception ee) {
}
}
}
}
}
return returnVal;
}
@Override
public void commit(Xid xid, boolean b) throws XAException {
// Commit only if not read only.
if (prepareResult != XAResource.XA_RDONLY) xaResource.commit(xid, b);
else log.tracef("Not committing {0} due to readonly.", xid);
}
private void checkXAHoldability() {
System.out.println("START XA HOLDABILITY TEST");
try {
EmbeddedXADataSource dscsx = new EmbeddedXADataSource();
dscsx.setDatabaseName("wombat");
XAConnection xac = dscsx.getXAConnection("fred", "wilma");
XAResource xr = xac.getXAResource();
Xid xid = getXid(25, (byte) 21, (byte) 01);
Connection conn1 = xac.getConnection();
System.out.println(
"By default, autocommit is " + conn1.getAutoCommit() + " for a connection");
System.out.println("Default holdability for a connection is HOLD_CURSORS_OVER_COMMIT");
System.out.println(
"CONNECTION(not in xa transaction yet) HOLDABILITY "
+ (conn1.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
// start a global transaction and default holdability and autocommit will be switched to match
// Derby XA restrictions
xr.start(xid, XAResource.TMNOFLAGS);
System.out.println(
"Notice that autocommit now is "
+ conn1.getAutoCommit()
+ " for connection because it is part of the global transaction");
System.out.println(
"Notice that connection's holdability at this point is CLOSE_CURSORS_AT_COMMIT because it is part of the global transaction");
System.out.println(
"CONNECTION(in xa transaction) HOLDABILITY "
+ (conn1.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
xr.end(xid, XAResource.TMSUCCESS);
conn1.commit();
conn1.close();
xid = getXid(27, (byte) 21, (byte) 01);
xr.start(xid, XAResource.TMNOFLAGS);
conn1 = xac.getConnection();
System.out.println(
"CONNECTION(in xa transaction) HOLDABILITY "
+ (conn1.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"Autocommit on Connection inside global transaction has been set correctly to "
+ conn1.getAutoCommit());
xr.end(xid, XAResource.TMSUCCESS);
conn1.rollback();
Connection conn = xac.getConnection();
conn.setAutoCommit(false);
conn.setHoldability(ResultSet.CLOSE_CURSORS_AT_COMMIT);
System.out.println(
"CONNECTION(non-xa) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
Statement s = conn.createStatement();
System.out.println(
"STATEMENT HOLDABILITY "
+ (s.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
s.executeUpdate("create table hold_30 (id int not null primary key, b char(30))");
s.executeUpdate("insert into hold_30 values (1,'init2'), (2, 'init3'), (3,'init3')");
s.executeUpdate("insert into hold_30 values (4,'init4'), (5, 'init5'), (6,'init6')");
s.executeUpdate("insert into hold_30 values (7,'init7'), (8, 'init8'), (9,'init9')");
System.out.println(
"STATEMENT HOLDABILITY "
+ (s.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
Statement sh =
conn.createStatement(
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
PreparedStatement psh =
conn.prepareStatement(
"select id from hold_30 for update",
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
CallableStatement csh =
conn.prepareCall(
"select id from hold_30 for update",
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println(
"STATEMENT HOLDABILITY "
+ (sh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"PREPARED STATEMENT HOLDABILITY "
+ (psh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"CALLABLE STATEMENT HOLDABILITY "
+ (csh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
ResultSet rsh = sh.executeQuery("select id from hold_30 for update");
rsh.next();
System.out.println("H@1 id " + rsh.getInt(1));
rsh.next();
System.out.println("H@2 id " + rsh.getInt(1));
conn.commit();
rsh.next();
System.out.println("H@3 id " + rsh.getInt(1));
conn.commit();
xid = getXid(23, (byte) 21, (byte) 01);
xr.start(xid, XAResource.TMNOFLAGS);
Statement stmtInsideGlobalTransaction = conn.createStatement();
PreparedStatement prepstmtInsideGlobalTransaction =
conn.prepareStatement("select id from hold_30");
CallableStatement callablestmtInsideGlobalTransaction =
conn.prepareCall("select id from hold_30");
System.out.println(
"CONNECTION(xa) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with holdability false, outside the global transaction. Check it's holdability inside global transaction) HOLDABILITY "
+ (s.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with holdability true, outside the global transaction. Check it's holdability inside global transaction) HOLDABILITY "
+ (sh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with default holdability inside this global transaction. Check it's holdability) HOLDABILITY "
+ (stmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"PREPAREDSTATEMENT(this one was created with default holdability inside this global transaction. Check it's holdability) HOLDABILITY "
+ (prepstmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"CALLABLESTATEMENT(this one was created with default holdability inside this global transaction. Check it's holdability) HOLDABILITY "
+ (callablestmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
ResultSet rsx = s.executeQuery("select id from hold_30 for update");
rsx.next();
System.out.println("X@1 id " + rsx.getInt(1));
rsx.next();
System.out.println("X@2 id " + rsx.getInt(1));
xr.end(xid, XAResource.TMSUCCESS);
// result set should not be useable, since it is part of a detached
// XAConnection
try {
rsx.next();
System.out.println("FAIL - rsx's connection not active id " + rsx.getInt(1));
} catch (SQLException sqle) {
System.out.println("Expected SQLException " + sqle.getMessage());
}
// result set should not be useable, it should have been closed by the xa start.
try {
rsh.next();
System.out.println("FAIL - rsh's should be closed " + rsx.getInt(1));
} catch (SQLException sqle) {
System.out.println("Expected SQLException " + sqle.getMessage());
}
System.out.println("resume XA transaction and keep using rs");
xr.start(xid, XAResource.TMJOIN);
Statement stmtAfterGlobalTransactionResume = conn.createStatement();
PreparedStatement prepstmtAfterGlobalTransactionResume =
conn.prepareStatement("select id from hold_30");
CallableStatement callablestmtAfterGlobalTransactionResume =
conn.prepareCall("select id from hold_30");
System.out.println("Check holdability of various jdbc objects after resuming XA transaction");
System.out.println(
"CONNECTION(xa) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with holdability false, outside the global transaction. Check it's holdability inside global transaction) HOLDABILITY "
+ (s.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with holdability true, outside the global transaction. Check it's holdability inside global transaction) HOLDABILITY "
+ (sh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with default holdability inside the global transaction when it was first started. Check it's holdability) HOLDABILITY "
+ (stmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"PREPAREDSTATEMENT(this one was created with default holdability inside the global transaction when it was first started. Check it's holdability) HOLDABILITY "
+ (prepstmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"CALLABLESTATEMENT(this one was created with default holdability inside the global transaction when it was first started. Check it's holdability) HOLDABILITY "
+ (callablestmtInsideGlobalTransaction.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"STATEMENT(this one was created with default holdability after the global transaction was resumed. Check it's holdability) HOLDABILITY "
+ (stmtAfterGlobalTransactionResume.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"PREPAREDSTATEMENT(this one was created with default holdability after the global transaction was resumed. Check it's holdability) HOLDABILITY "
+ (prepstmtAfterGlobalTransactionResume.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
System.out.println(
"CALLABLESTATEMENT(this one was created with default holdability after the global transaction was resumed. Check it's holdability) HOLDABILITY "
+ (callablestmtAfterGlobalTransactionResume.getResultSetHoldability()
== ResultSet.HOLD_CURSORS_OVER_COMMIT));
rsx.next();
System.out.println("X@3 id " + rsx.getInt(1));
xr.end(xid, XAResource.TMSUCCESS);
if (xr.prepare(xid) != XAResource.XA_RDONLY) xr.commit(xid, false);
// try again once the xa transaction has been committed.
try {
rsx.next();
System.out.println("FAIL - rsx's connection not active id (B)" + rsx.getInt(1));
} catch (SQLException sqle) {
System.out.println("Expected SQLException " + sqle.getMessage());
}
try {
rsh.next();
System.out.println("FAIL - rsh's should be closed (B) " + rsx.getInt(1));
} catch (SQLException sqle) {
System.out.println("Expected SQLException " + sqle.getMessage());
}
System.out.println("Set connection to hold ");
conn.setHoldability(ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println(
"CONNECTION(held) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
xid = getXid(24, (byte) 21, (byte) 01);
xr.start(xid, XAResource.TMNOFLAGS);
System.out.println(
"CONNECTION(xa) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
try {
conn.setHoldability(ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println("FAIL allowed to set hold mode in xa transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException(setHoldability) " + sqle.getMessage());
}
// try to create a statement with held attributes
try {
Statement shxa =
conn.createStatement(
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println(
"FAIL opened statement with hold cursor attribute in global transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException (Statement hold) " + sqle.getMessage());
}
try {
Statement shxa =
conn.prepareStatement(
"select id from hold_30",
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println(
"FAIL opened statement with hold cursor attribute in global transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException (PreparedStatement hold) " + sqle.getMessage());
}
try {
Statement shxa =
conn.prepareCall(
"CALL XXX.TTT()",
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY,
ResultSet.HOLD_CURSORS_OVER_COMMIT);
System.out.println(
"FAIL opened statement with hold cursor attribute in global transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException (CallableStatement hold) " + sqle.getMessage());
}
// check we cannot use a holdable statement set up in local mode.
System.out.println(
"STATEMENT HOLDABILITY "
+ (sh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
try {
sh.executeQuery("select id from hold_30");
System.out.println("FAIL used held statement in global transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException (local Statement hold) " + sqle.getMessage());
}
try {
sh.execute("select id from hold_30");
System.out.println("FAIL used held statement in global transaction");
} catch (SQLException sqle) {
System.out.println("Expected SQLException (local Statement hold) " + sqle.getMessage());
}
System.out.println(
"PREPARED STATEMENT HOLDABILITY "
+ (psh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
try {
psh.executeQuery();
System.out.println("FAIL used held prepared statement in global transaction");
} catch (SQLException sqle) {
System.out.println(
"Expected SQLException (local PreparedStatement hold) " + sqle.getMessage());
}
try {
psh.execute();
System.out.println("FAIL used held prepared statement in global transaction");
} catch (SQLException sqle) {
System.out.println(
"Expected SQLException (local PreparedStatement hold) " + sqle.getMessage());
}
System.out.println(
"CALLABLE STATEMENT HOLDABILITY "
+ (csh.getResultSetHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
try {
csh.executeQuery();
System.out.println("FAIL used held callable statement in global transaction");
} catch (SQLException sqle) {
System.out.println(
"Expected SQLException (local CallableStatement hold) " + sqle.getMessage());
}
try {
csh.execute();
System.out.println("FAIL used held callable statement in global transaction");
} catch (SQLException sqle) {
System.out.println(
"Expected SQLException (local CallableStatement hold) " + sqle.getMessage());
}
// but an update works
sh.executeUpdate("insert into hold_30 values(10, 'init10')");
xr.end(xid, XAResource.TMSUCCESS);
System.out.println(
"CONNECTION(held) HOLDABILITY "
+ (conn.getHoldability() == ResultSet.HOLD_CURSORS_OVER_COMMIT));
conn.close();
System.out.println("PASS XA HOLDABILITY TEST");
} catch (XAException xae) {
System.out.println("XAException error code " + xae.errorCode);
xae.printStackTrace(System.out);
Throwable t = xae.getCause();
if (t instanceof SQLException) JDBCDisplayUtil.ShowSQLException(System.out, (SQLException) t);
} catch (SQLException sqle) {
JDBCDisplayUtil.ShowSQLException(System.out, sqle);
} catch (Throwable t) {
t.printStackTrace(System.out);
}
System.out.flush();
}
/**
* Tests that simple distributed transaction processing works as expected.
*
* @throws Exception if the test fails.
*/
public void testCoordination() throws Exception {
if (!versionMeetsMinimum(5, 0)) {
return;
}
createTable("testCoordination", "(field1 int) ENGINE=InnoDB");
Connection conn1 = null;
Connection conn2 = null;
XAConnection xaConn1 = null;
XAConnection xaConn2 = null;
try {
xaConn1 = getXAConnection();
XAResource xaRes1 = xaConn1.getXAResource();
conn1 = xaConn1.getConnection();
xaConn2 = getXAConnection();
XAResource xaRes2 = xaConn2.getXAResource();
conn2 = xaConn2.getConnection();
Xid xid1 = createXid();
Xid xid2 = createXid(xid1);
xaRes1.start(xid1, XAResource.TMNOFLAGS);
xaRes2.start(xid2, XAResource.TMNOFLAGS);
conn1.createStatement().executeUpdate("INSERT INTO testCoordination VALUES (1)");
conn2.createStatement().executeUpdate("INSERT INTO testCoordination VALUES (2)");
xaRes1.end(xid1, XAResource.TMSUCCESS);
xaRes2.end(xid2, XAResource.TMSUCCESS);
xaRes1.prepare(xid1);
xaRes2.prepare(xid2);
xaRes1.commit(xid1, false);
xaRes2.commit(xid2, false);
this.rs = this.stmt.executeQuery("SELECT field1 FROM testCoordination ORDER BY field1");
assertTrue(this.rs.next());
assertEquals(1, this.rs.getInt(1));
assertTrue(this.rs.next());
assertEquals(2, this.rs.getInt(1));
this.stmt.executeUpdate("TRUNCATE TABLE testCoordination");
//
// Now test rollback
//
xid1 = createXid();
xid2 = createXid(xid1);
xaRes1.start(xid1, XAResource.TMNOFLAGS);
xaRes2.start(xid2, XAResource.TMNOFLAGS);
conn1.createStatement().executeUpdate("INSERT INTO testCoordination VALUES (1)");
// ensure visibility
assertEquals(
"1",
getSingleIndexedValueWithQuery(
conn1, 1, "SELECT field1 FROM testCoordination WHERE field1=1")
.toString());
conn2.createStatement().executeUpdate("INSERT INTO testCoordination VALUES (2)");
// ensure visibility
assertEquals(
"2",
getSingleIndexedValueWithQuery(
conn2, 1, "SELECT field1 FROM testCoordination WHERE field1=2")
.toString());
xaRes1.end(xid1, XAResource.TMSUCCESS);
xaRes2.end(xid2, XAResource.TMSUCCESS);
xaRes1.prepare(xid1);
xaRes2.prepare(xid2);
xaRes1.rollback(xid1);
xaRes2.rollback(xid2);
this.rs = this.stmt.executeQuery("SELECT field1 FROM testCoordination ORDER BY field1");
assertTrue(!this.rs.next());
} finally {
if (conn1 != null) {
conn1.close();
}
if (conn2 != null) {
conn2.close();
}
if (xaConn1 != null) {
xaConn1.close();
}
if (xaConn2 != null) {
xaConn2.close();
}
}
}
public void testSuspendableTx() throws Exception {
if (!versionMeetsMinimum(5, 0)) {
return;
}
Connection conn1 = null;
MysqlXADataSource suspXaDs = new MysqlXADataSource();
suspXaDs.setUrl(BaseTestCase.dbUrl);
suspXaDs.setPinGlobalTxToPhysicalConnection(true);
suspXaDs.setRollbackOnPooledClose(true);
XAConnection xaConn1 = null;
Xid xid = createXid();
try {
/*
* -- works using RESUME
* xa start 0x123,0x456;
* select * from foo;
* xa end 0x123,0x456;
* xa start 0x123,0x456 resume;
* select * from foo;
* xa end 0x123,0x456;
* xa commit 0x123,0x456 one phase;
*/
xaConn1 = suspXaDs.getXAConnection();
XAResource xaRes1 = xaConn1.getXAResource();
conn1 = xaConn1.getConnection();
xaRes1.start(xid, XAResource.TMNOFLAGS);
conn1.createStatement().executeQuery("SELECT 1");
xaRes1.end(xid, XAResource.TMSUCCESS);
xaRes1.start(xid, XAResource.TMRESUME);
conn1.createStatement().executeQuery("SELECT 1");
xaRes1.end(xid, XAResource.TMSUCCESS);
xaRes1.commit(xid, true);
xaConn1.close();
/*
*
* -- fails using JOIN
* xa start 0x123,0x456;
* select * from foo;
* xa end 0x123,0x456;
* xa start 0x123,0x456 join;
* select * from foo;
* xa end 0x123,0x456;
* xa commit 0x123,0x456 one phase;
*/
xaConn1 = suspXaDs.getXAConnection();
xaRes1 = xaConn1.getXAResource();
conn1 = xaConn1.getConnection();
xaRes1.start(xid, XAResource.TMNOFLAGS);
conn1.createStatement().executeQuery("SELECT 1");
xaRes1.end(xid, XAResource.TMSUCCESS);
xaRes1.start(xid, XAResource.TMJOIN);
conn1.createStatement().executeQuery("SELECT 1");
xaRes1.end(xid, XAResource.TMSUCCESS);
xaRes1.commit(xid, true);
} finally {
if (xaConn1 != null) {
xaConn1.close();
}
}
}
@Override
public void commit(Xid xid, boolean onePhase) throws XAException {
resource.commit(xid, onePhase);
}
@Override
public boolean runExample() throws Exception {
XAConnection connection = null;
InitialContext initialContext = null;
try {
// Step 1. Create an initial context to perform the JNDI lookup.
initialContext = getContext(0);
// Step 2. Lookup on the queue
Queue queue = (Queue) initialContext.lookup("/queue/exampleQueue");
// Step 3. Perform a lookup on the XA Connection Factory
XAConnectionFactory cf = (XAConnectionFactory) initialContext.lookup("/XAConnectionFactory");
// Step 4.Create a JMS XAConnection
connection = cf.createXAConnection();
// Step 5. Start the connection
connection.start();
// Step 6. Create a JMS XASession
XASession xaSession = connection.createXASession();
// Step 7. Create a normal session
Session normalSession = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
// Step 8. Create a normal Message Consumer
MessageConsumer normalConsumer = normalSession.createConsumer(queue);
normalConsumer.setMessageListener(new SimpleMessageListener());
// Step 9. Get the JMS Session
Session session = xaSession.getSession();
// Step 10. Create a message producer
MessageProducer producer = session.createProducer(queue);
// Step 11. Create two Text Messages
TextMessage helloMessage = session.createTextMessage("hello");
TextMessage worldMessage = session.createTextMessage("world");
// Step 12. create a transaction
Xid xid1 =
new DummyXid(
"xa-example1".getBytes(CharsetUtil.UTF_8),
1,
UUIDGenerator.getInstance().generateStringUUID().getBytes());
// Step 13. Get the JMS XAResource
XAResource xaRes = xaSession.getXAResource();
// Step 14. Begin the Transaction work
xaRes.start(xid1, XAResource.TMNOFLAGS);
// Step 15. do work, sending two messages.
producer.send(helloMessage);
producer.send(worldMessage);
Thread.sleep(2000);
// Step 16. Check the result, it should receive none!
checkNoMessageReceived();
// Step 17. Stop the work
xaRes.end(xid1, XAResource.TMSUCCESS);
// Step 18. Prepare
xaRes.prepare(xid1);
// Step 19. Roll back the transaction
xaRes.rollback(xid1);
// Step 20. No messages should be received!
checkNoMessageReceived();
// Step 21. Create another transaction
Xid xid2 =
new DummyXid(
"xa-example2".getBytes(),
1,
UUIDGenerator.getInstance().generateStringUUID().getBytes());
// Step 22. Start the transaction
xaRes.start(xid2, XAResource.TMNOFLAGS);
// Step 23. Re-send those messages
producer.send(helloMessage);
producer.send(worldMessage);
// Step 24. Stop the work
xaRes.end(xid2, XAResource.TMSUCCESS);
// Step 25. Prepare
xaRes.prepare(xid2);
// Step 26. No messages should be received at this moment
checkNoMessageReceived();
// Step 27. Commit!
xaRes.commit(xid2, false);
Thread.sleep(2000);
// Step 28. Check the result, all message received
checkAllMessageReceived();
return result;
} finally {
// Step 29. Be sure to close our JMS resources!
if (initialContext != null) {
initialContext.close();
}
if (connection != null) {
connection.close();
}
}
}
private void commitTx() throws XAException {
xaResource.end(dummyXid, XAResource.TMSUCCESS);
xaResource.commit(dummyXid, true);
// xaCon.clearAllTransactions();
}