public void testCommitFails() throws Exception {
DummyTransactionParticipant[] participants = {
new DummyNonDurableTransactionParticipant(),
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
},
new DummyNonDurableTransactionParticipant() {
public void commit(Transaction txn) {
throw new RuntimeException("Commit failed");
}
},
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
},
new DummyTransactionParticipant() {}
};
for (TransactionParticipant participant : participants) {
txn.join(participant);
}
handle.commit();
for (DummyTransactionParticipant participant : participants) {
if (!participant.prepareReturnedTrue()) {
assertEquals(
(participant == participants[2] ? State.PREPARED : State.COMMITTED),
participant.getState());
}
}
assertCommitted();
}
public void testCommitPrepareAbortsAndFailsLast() throws Exception {
DummyTransactionParticipant[] participants = {
new DummyNonDurableTransactionParticipant(),
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
},
new DummyTransactionParticipant() {
public void prepareAndCommit(Transaction txn) throws Exception {
try {
txn.abort(abortXcp);
} catch (RuntimeException e) {
fail("Unexpected exception: " + e);
}
throw new IOException("Prepare failed");
}
}
};
for (TransactionParticipant participant : participants) {
txn.join(participant);
}
try {
handle.commit();
fail("Expected IOException");
} catch (IOException e) {
System.err.println(e);
}
for (DummyTransactionParticipant participant : participants) {
if (!participant.prepareReturnedTrue()) {
assertEquals(State.ABORTED, participant.getState());
}
}
assertAborted(abortXcp);
}
public void testAbortAborting() {
final Exception abortCause = new Exception("Why we aborted");
DummyTransactionParticipant[] participants = {
new DummyNonDurableTransactionParticipant() {
public void abort(Transaction txn) {
assertAborted(abortCause);
super.abort(txn);
}
},
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
public void abort(Transaction txn) {
assertAborted(abortCause);
super.abort(txn);
}
},
new DummyNonDurableTransactionParticipant() {
public void abort(Transaction txn) {
assertAborted(abortCause);
try {
txn.abort(abortXcp);
} catch (RuntimeException e) {
fail("Unexpected exception: " + e);
}
assertAborted(abortCause);
}
},
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
public void abort(Transaction txn) {
assertAborted(abortCause);
super.abort(txn);
}
}
};
for (TransactionParticipant participant : participants) {
txn.join(participant);
}
txn.abort(abortCause);
for (DummyTransactionParticipant participant : participants) {
if (!participant.prepareReturnedTrue()) {
assertEquals(
participant == participants[2] ? State.ACTIVE : State.ABORTED, participant.getState());
}
}
assertAborted(abortCause);
}
public void testJoinPreparing() throws Exception {
final Exception[] abortCause = {null};
DummyTransactionParticipant[] participants = {
new DummyNonDurableTransactionParticipant(),
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
},
new DummyNonDurableTransactionParticipant() {
public boolean prepare(Transaction txn) {
try {
txn.join(this);
fail("Expected IllegalStateException");
} catch (IllegalStateException e) {
System.err.println(e);
abortCause[0] = e;
throw e;
} catch (RuntimeException e) {
fail("Unexpected exception: " + e);
}
return false;
}
},
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
}
};
for (TransactionParticipant participant : participants) {
txn.join(participant);
}
try {
handle.commit();
fail("Expected IllegalStateException");
} catch (IllegalStateException e) {
System.err.println(e);
}
for (DummyTransactionParticipant participant : participants) {
if (!participant.prepareReturnedTrue()) {
assertEquals(State.ABORTED, participant.getState());
}
}
assertAborted(abortCause[0]);
}
public void testAbortCommitting() throws Exception {
DummyTransactionParticipant[] participants = {
new DummyNonDurableTransactionParticipant(),
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
},
new DummyNonDurableTransactionParticipant() {
public void commit(Transaction txn) {
assertNotAborted();
try {
txn.abort(abortXcp);
fail("Expected IllegalStateException");
} catch (IllegalStateException e) {
System.err.println(e);
throw e;
} catch (RuntimeException e) {
fail("Unexpected exception: " + e);
}
}
},
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
}
};
for (TransactionParticipant participant : participants) {
txn.join(participant);
}
handle.commit();
for (DummyTransactionParticipant participant : participants) {
if (!participant.prepareReturnedTrue()) {
assertEquals(
participant == participants[2] ? State.PREPARED : State.COMMITTED,
participant.getState());
}
}
assertCommitted();
}
public void testCommitActive() throws Exception {
DummyTransactionParticipant[] participants = {
new DummyNonDurableTransactionParticipant(),
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
},
new DummyTransactionParticipant()
};
for (TransactionParticipant participant : participants) {
txn.join(participant);
}
handle.commit();
for (DummyTransactionParticipant participant : participants) {
if (!participant.prepareReturnedTrue()) {
assertEquals(State.COMMITTED, participant.getState());
}
}
assertCommitted();
}
public void testAbortActive() throws Exception {
DummyTransactionParticipant[] participants = {
new DummyNonDurableTransactionParticipant(),
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
},
new DummyTransactionParticipant()
};
for (TransactionParticipant participant : participants) {
txn.join(participant);
}
assertNotAborted();
txn.abort(abortXcp);
for (DummyTransactionParticipant participant : participants) {
if (!participant.prepareReturnedTrue()) {
assertEquals(State.ABORTED, participant.getState());
}
}
assertAborted(abortXcp);
}
public void testJoinAborting() {
DummyTransactionParticipant[] participants = {
new DummyNonDurableTransactionParticipant(),
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
},
new DummyNonDurableTransactionParticipant() {
public void abort(Transaction txn) {
try {
txn.join(this);
fail("Expected IllegalStateException");
} catch (IllegalStateException e) {
System.err.println(e);
throw e;
} catch (RuntimeException e) {
fail("Unexpected exception: " + e);
}
}
},
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
}
};
for (TransactionParticipant participant : participants) {
txn.join(participant);
}
txn.abort(abortXcp);
for (DummyTransactionParticipant participant : participants) {
if (!participant.prepareReturnedTrue()) {
assertEquals(
participant == participants[2] ? State.ACTIVE : State.ABORTED, participant.getState());
}
}
assertAborted(abortXcp);
}
public void testCommitPrepareFailsMiddle() throws Exception {
final Exception abortCause = new IOException("Prepare failed");
DummyTransactionParticipant[] participants = {
new DummyNonDurableTransactionParticipant(),
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
},
new DummyNonDurableTransactionParticipant() {
public boolean prepare(Transaction txn) throws Exception {
throw abortCause;
}
},
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
},
new DummyTransactionParticipant()
};
for (TransactionParticipant participant : participants) {
txn.join(participant);
}
try {
handle.commit();
fail("Expected IOException");
} catch (IOException e) {
System.err.println(e);
}
for (DummyTransactionParticipant participant : participants) {
if (!participant.prepareReturnedTrue()) {
assertEquals(State.ABORTED, participant.getState());
}
}
assertAborted(abortCause);
}
public void testAbortPrepareAndCommitting() throws Exception {
final Exception abortCause = new IllegalArgumentException();
DummyTransactionParticipant[] participants = {
new DummyNonDurableTransactionParticipant(),
new DummyNonDurableTransactionParticipant() {
protected boolean prepareResult() {
return true;
}
},
new DummyTransactionParticipant() {
public void prepareAndCommit(Transaction txn) {
assertNotAborted();
try {
txn.abort(abortCause);
} catch (RuntimeException e) {
fail("Unexpected exception: " + e);
}
}
}
};
for (TransactionParticipant participant : participants) {
txn.join(participant);
}
try {
handle.commit();
fail("Expected TransactionAbortedException");
} catch (TransactionAbortedException e) {
System.err.println(e);
assertEquals(abortCause, e.getCause());
}
for (DummyTransactionParticipant participant : participants) {
if (!participant.prepareReturnedTrue()) {
assertEquals(State.ABORTED, participant.getState());
}
}
assertAborted(abortCause);
}
public void testAbortFails() throws Exception {
DummyTransactionParticipant[] participants = {
new DummyNonDurableTransactionParticipant(),
new DummyNonDurableTransactionParticipant() {
public void abort(Transaction txn) {
throw new RuntimeException("Abort failed");
}
},
new DummyTransactionParticipant() {}
};
for (TransactionParticipant participant : participants) {
txn.join(participant);
}
Exception abortCause = new IllegalArgumentException();
txn.abort(abortCause);
for (DummyTransactionParticipant participant : participants) {
if (!participant.prepareReturnedTrue()) {
assertEquals(
(participant == participants[1] ? State.ACTIVE : State.ABORTED),
participant.getState());
}
}
assertAborted(abortCause);
}