protected boolean writeObjectStoreRecord(OSRecordHolder holder) {
try {
return StoreManager.getRecoveryStore().write_committed(holder.uid, holder.type, holder.oos);
} catch (ObjectStoreException e) {
return false;
}
}
public static final void main(String[] args) {
LogConsole console = new LogConsole();
console.doWork();
StoreManager.getRecoveryStore().stop();
}
private final boolean supportedLog(String logID) throws ObjectStoreException, IOException {
Uid id = new Uid(logID);
if (id.equals(Uid.nullUid())) return false;
ObjectStoreIterator iter =
new ObjectStoreIterator(
StoreManager.getRecoveryStore(),
TransactionTypeManager.getInstance().getTransactionType(_transactionType));
Uid u;
do {
u = iter.iterate();
if (u.equals(id)) return true;
} while (Uid.nullUid().notEquals(u));
return false;
}
private final void listLogs(String type) throws IOException {
InputObjectState buff = new InputObjectState();
try {
if (StoreManager.getRecoveryStore()
.allObjUids(TransactionTypeManager.getInstance().getTransactionType(type), buff)) {
Uid u = null;
do {
u = UidHelper.unpackFrom(buff);
if (Uid.nullUid().notEquals(u)) {
System.out.println("Log: " + u);
}
} while (Uid.nullUid().notEquals(u));
}
} catch (final ObjectStoreException ex) {
throw new IOException();
}
}
@Test
public void test() {
RecoveryStore recoveryStore = StoreManager.getRecoveryStore();
OutputObjectState fluff = new OutputObjectState();
Uid kungfuTx = new Uid();
boolean passed = false;
final String tn = new AtomicAction().type();
try {
UidHelper.packInto(kungfuTx, fluff);
System.err.println("Creating dummy log");
recoveryStore.write_committed(kungfuTx, tn, fluff);
if (recoveryStore.currentState(kungfuTx, tn) == StateStatus.OS_COMMITTED) {
System.err.println("Wrote dummy transaction " + kungfuTx);
// quicker to deal with scanner directly
ExpiredTransactionScanner scanner =
new ExpiredTransactionScanner(tn, "/StateManager/ExpiredEntries");
scanner.scan();
scanner.scan();
if (recoveryStore.currentState(kungfuTx, tn) == StateStatus.OS_COMMITTED)
System.err.println("Transaction log not moved!");
else {
System.err.println("Transaction log moved!");
passed = true;
}
} else System.err.println("State is not committed!");
} catch (final Exception ex) {
ex.printStackTrace();
}
assertTrue(passed);
}
protected static OSRecordHolder readObjectStoreRecord(String type) {
try {
RecoveryStore recoveryStore = StoreManager.getRecoveryStore();
InputObjectState states = new InputObjectState();
if (recoveryStore.allObjUids(type, states) && states.notempty()) {
Uid uid = UidHelper.unpackFrom(states);
if (uid.notEquals(Uid.nullUid())) {
InputObjectState ios = recoveryStore.read_committed(uid, type);
return new OSRecordHolder(uid, type, ios);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
private static void clearObjectStore(String type) {
try {
RecoveryStore recoveryStore = StoreManager.getRecoveryStore();
InputObjectState states = new InputObjectState();
if (recoveryStore.allObjUids(type, states) && states.notempty()) {
boolean finished = false;
do {
Uid uid = UidHelper.unpackFrom(states);
if (uid.notEquals(Uid.nullUid())) {
recoveryStore.remove_committed(uid, type);
} else {
finished = true;
}
} while (!finished);
}
} catch (Exception e) {
e.printStackTrace();
}
}