public boolean restoreState(InputObjectState os) {
InputObjectState copy = new InputObjectState(os);
try {
heuristic = copy.unpackInt();
} catch (IOException e) {
}
return super.restoreState(os);
}
private boolean unpackPrimitive(final Field afield, InputObjectState os) {
try {
// TODO arrays
if (afield.getType().equals(Boolean.TYPE)) afield.setBoolean(_theObject, os.unpackBoolean());
else if (afield.getType().equals(Byte.TYPE)) afield.setByte(_theObject, os.unpackByte());
else if (afield.getType().equals(Short.TYPE)) afield.setShort(_theObject, os.unpackShort());
else if (afield.getType().equals(Integer.TYPE)) afield.setInt(_theObject, os.unpackInt());
else if (afield.getType().equals(Long.TYPE)) afield.setLong(_theObject, os.unpackLong());
else if (afield.getType().equals(Float.TYPE)) afield.setFloat(_theObject, os.unpackFloat());
else if (afield.getType().equals(Double.TYPE))
afield.setDouble(_theObject, os.unpackDouble());
else if (afield.getType().equals(Character.TYPE)) afield.setChar(_theObject, os.unpackChar());
else return false;
} catch (final IOException ex) {
ex.printStackTrace();
return false;
} catch (final Exception ex) {
ex.printStackTrace();
return false;
}
return true;
}
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();
}
}
private boolean unpackPrimitiveArray(final Field afield, InputObjectState os) {
boolean success = true;
try {
Class<?> c = afield.getType();
final int size = Array.getLength(afield.get(_theObject));
if (c.equals(int[].class)) {
final int[] objs = (int[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) objs[i] = os.unpackInt();
} else if (c.equals(boolean[].class)) {
final boolean[] objs = (boolean[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) objs[i] = os.unpackBoolean();
} else if (c.equals(byte[].class)) {
final byte[] objs = (byte[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) objs[i] = os.unpackByte();
} else if (c.equals(short[].class)) {
final short[] objs = (short[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) objs[i] = os.unpackShort();
} else if (c.equals(long[].class)) {
final long[] objs = (long[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) objs[i] = os.unpackLong();
} else if (c.equals(float[].class)) {
final float[] objs = (float[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) objs[i] = os.unpackFloat();
} else if (c.equals(double[].class)) {
final double[] objs = (double[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) objs[i] = os.unpackDouble();
} else if (c.equals(char[].class)) {
final char[] objs = (char[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) objs[i] = os.unpackChar();
} else success = false;
} catch (final Throwable ex) {
ex.printStackTrace();
success = false;
}
return success;
}
public boolean restore_state(InputObjectState objectState, int objectType) {
super.restore_state(objectState, objectType);
try {
for (int x = 0; x < _width; x++) {
for (int y = 0; y < _height; y++) {
_values[x][y] = objectState.unpackInt();
}
}
return true;
} catch (Exception exception) {
System.err.println("AITMatrixImpl01.restore_state: " + exception);
return false;
}
}
private boolean unpackTransactionalInstance(final Field afield, InputObjectState os) {
try {
boolean ptr = os.unpackBoolean();
if (!ptr) afield.set(_theObject, null);
else {
Uid u = UidHelper.unpackFrom(os);
afield.set(_theObject, _container.getHandle(u));
}
} catch (final Exception ex) {
ex.printStackTrace();
return false;
}
return true;
}
private boolean unpackObjectType(final Field afield, InputObjectState os) {
try {
// TODO arrays
if (afield.getType().equals(Boolean.class))
afield.set(_theObject, new Boolean(os.unpackBoolean()));
else if (afield.getType().equals(Byte.class))
afield.set(_theObject, new Byte(os.unpackByte()));
else if (afield.getType().equals(Short.class))
afield.set(_theObject, new Short(os.unpackShort()));
else if (afield.getType().equals(Integer.class))
afield.set(_theObject, new Integer(os.unpackInt()));
else if (afield.getType().equals(Long.class))
afield.set(_theObject, new Long(os.unpackLong()));
else if (afield.getType().equals(Float.class))
afield.set(_theObject, new Float(os.unpackFloat()));
else if (afield.getType().equals(Double.class))
afield.set(_theObject, new Double(os.unpackDouble()));
else if (afield.getType().equals(Character.class))
afield.set(_theObject, new Character(os.unpackChar()));
else if (afield.getType().equals(String.class)) afield.set(_theObject, os.unpackString());
else if (afield.getType().isAnnotationPresent(Transactional.class))
return unpackTransactionalInstance(afield, os);
else return false;
} catch (final IOException ex) {
ex.printStackTrace();
return false;
} catch (final Exception ex) {
ex.printStackTrace();
return false;
}
return true;
}
private final ArrayList<InputObjectState> scanLog(final Uid logName, final String typeName)
throws ObjectStoreException {
/*
* Make sure no new entries can be created while we scan.
*/
synchronized (_lock) {
try {
String fname = genPathName(logName, typeName, StateStatus.OS_COMMITTED);
File fd = openAndLock(fname, FileLock.F_WRLCK, true);
RandomAccessFile iFile = new RandomAccessFile(fd, FILE_MODE);
// iFile.getChannel().lock();
try {
/*
* Create a list of ObjectState entries.
*/
ArrayList<InputObjectState> objectStates = new ArrayList<InputObjectState>();
iFile.seek(0); // make sure we're at the start
while (iFile.getFilePointer() < iFile.length()) {
byte[] buff = new byte[_redzone.length];
iFile.read(buff);
if (!redzoneProtected(buff)) {
// end
break;
/*
* TODO add an end-of-log entry and check for that. Currently just assume
* that no RZ means end, rather than corruption.
*/
} else {
int uidSize = iFile.readInt();
byte[] uidString = new byte[uidSize];
iFile.read(uidString);
Uid txId = new Uid(new String(uidString));
int imageSize = iFile.readInt();
byte[] imageState = new byte[imageSize];
iFile.read(imageState);
try {
InputObjectState state = new InputObjectState(txId, "", imageState);
objectStates.add(state);
} catch (final Exception ex) {
ex.printStackTrace();
throw new ObjectStoreException(ex.toString(), ex);
}
}
}
unlockAndClose(fd, iFile);
iFile = null;
/*
* At this stage we now have a list of ObjectState entries.
* Now we need to go through and prune the list. This is
* complicated by the fact that there can be 1.. entries for
* a specific transaction since we continually update the
* log as we drive recovery. If an entry hasn't been deleted
* then we will keep the latest one we find.
*/
/*
* First search for those entries that have been deleted.
*/
ArrayList<InputObjectState> deletedLogs = new ArrayList<InputObjectState>();
for (int i = 0; i < objectStates.size(); i++) {
InputObjectState curr = objectStates.get(i);
try {
if (Arrays.equals(curr.unpackBytes(), _removedState)) {
deletedLogs.add(curr);
} else curr.reread(); // don't forget to reset the read pointer!
} catch (final Exception ex) {
// if not a delete record then the first entry won't
// be an the defined byte array.
curr.reread(); // don't forget to reset the read pointer!
}
}
if (deletedLogs.size() > 0) {
/*
* make sure we remove them from the first list to save time.
*/
objectStates.removeAll(deletedLogs);
deleteEntries(objectStates, deletedLogs);
/*
* At this stage we should only have entries that refer
* to in-flight transactions. Go through the list and
* remove N-1 references for each transaction id.
*/
pruneEntries(objectStates);
/*
* Now return the list of committed entries.
*/
return objectStates;
} else return objectStates;
} finally {
if (iFile != null) unlockAndClose(fd, iFile);
}
} catch (final ObjectStoreException ex) {
ex.printStackTrace();
throw ex;
} catch (final Exception ex) {
ex.printStackTrace();
throw new ObjectStoreException(ex.toString(), ex);
}
}
}
/**
* This is a recovery-only method and should not be called during normal execution. As such we
* need to load in all of the logs we can find that aren't already loaded (or activated).
*/
public boolean allObjUids(String tName, InputObjectState state, int match)
throws ObjectStoreException {
/*
* match will always be OS_COMMITTED since that's all we ever write for
* the logs.
*/
// in case of asynchronous removals trigger the purger now.
_purger.trigger();
/*
* Get a list of logs. Load them in to memory if we aren't already
* working on them/it. But we can prune the entry once we're
* finished or the memory footprint will grow. We should do this
* for all frozen entries eventually too.
*/
InputObjectState logs = new InputObjectState();
OutputObjectState objUids = new OutputObjectState();
/*
* We never call this method except during recovery. As such we shouldn't
* need to worry about optimizations such as checking whether or not the
* log is in current working memory.
*/
if (!super.allObjUids(tName, logs, match)) return false;
else {
/*
* Now we have all of the log names let's attach to each one
* and locate the committed instances (not deleted.)
*/
Uid logName = new Uid(Uid.nullUid());
try {
do {
logName = UidHelper.unpackFrom(logs);
if (logName.notEquals(Uid.nullUid())) {
/*
* Could check to see if log is in current working memory.
*/
/*
* TODO
*
* First purge the log if we can, but we need to know that
* we're not playing with an instance that is being manipulated
* from another VM instance.
*/
ArrayList<InputObjectState> txs = scanLog(logName, tName);
if (txs.size() > 0) {
for (int i = 0; i < txs.size(); i++) {
UidHelper.packInto(txs.get(i).stateUid(), objUids);
}
}
}
} while (logName.notEquals(Uid.nullUid()));
// remember null terminator
UidHelper.packInto(Uid.nullUid(), objUids);
state.setBuffer(objUids.buffer());
} catch (final IOException ex) {
ex.printStackTrace();
return false;
}
return true;
}
}
/** restore the endpoint reference to the coordinator for this participant */
protected void restoreEndpointReference(InputObjectState ios) throws IOException {
String endpointString = ios.unpackString();
Source source = new StreamSource(new StringReader(endpointString));
endpoint = new W3CEndpointReference(source);
}
private boolean unpackObjectArray(final Field afield, InputObjectState os) {
boolean success = true;
try {
Class<?> c = afield.getType();
final int size = Array.getLength(afield.get(_theObject));
if (c.equals(Integer[].class)) {
final Integer[] objs = (Integer[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) {
boolean ref = os.unpackBoolean();
if (ref) objs[i] = os.unpackInt();
else objs[i] = null;
}
} else if (c.equals(Boolean[].class)) {
final Boolean[] objs = (Boolean[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) {
boolean ref = os.unpackBoolean();
if (ref) objs[i] = os.unpackBoolean();
else objs[i] = null;
}
} else if (c.equals(Byte[].class)) {
final Byte[] objs = (Byte[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) {
boolean ref = os.unpackBoolean();
if (ref) objs[i] = os.unpackByte();
else objs[i] = null;
}
} else if (c.equals(Short[].class)) {
final Short[] objs = (Short[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) {
boolean ref = os.unpackBoolean();
if (ref) objs[i] = os.unpackShort();
else objs[i] = null;
}
} else if (c.equals(Long[].class)) {
final Long[] objs = (Long[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) {
boolean ref = os.unpackBoolean();
if (ref) objs[i] = os.unpackLong();
else objs[i] = null;
}
} else if (c.equals(Float[].class)) {
final Float[] objs = (Float[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) {
boolean ref = os.unpackBoolean();
if (ref) objs[i] = os.unpackFloat();
else objs[i] = null;
}
} else if (c.equals(Double[].class)) {
final Double[] objs = (Double[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) {
boolean ref = os.unpackBoolean();
if (ref) objs[i] = os.unpackDouble();
else objs[i] = null;
}
} else if (c.equals(Character[].class)) {
final Character[] objs = (Character[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) {
boolean ref = os.unpackBoolean();
if (ref) objs[i] = os.unpackChar();
else objs[i] = null;
}
} else if (c.equals(String[].class)) {
final String[] objs = (String[]) afield.get(_theObject);
for (int i = 0; (i < size) && success; i++) {
boolean ref = os.unpackBoolean();
if (ref) objs[i] = os.unpackString();
else objs[i] = null;
}
} else {
System.err.println("Array type " + c + " not supported!");
success = false;
}
} catch (final Throwable ex) {
ex.printStackTrace();
success = false;
}
return success;
}
public boolean restore_state(InputObjectState os, int t) {
boolean res = false;
try {
_heuristic = os.unpackInt();
_committed = os.unpackBoolean();
_tranID = XidImple.unpack(os);
_theXAResource = null;
_recoveryObject = null;
if (os.unpackInt() == RecoverableXAConnection.OBJECT_RECOVERY) {
_productName = os.unpackString();
_productVersion = os.unpackString();
_jndiName = os.unpackString();
boolean haveXAResource = os.unpackBoolean();
if (haveXAResource) {
try {
// Read the classname of the serialized XAResource
String className = os.unpackString();
byte[] b = os.unpackBytes();
ByteArrayInputStream s = new ByteArrayInputStream(b);
ObjectInputStream o = new ObjectInputStream(s);
// Give the list of deserializers a chance to deserialize the record
boolean deserialized = false;
Iterator<SerializableXAResourceDeserializer> iterator =
getXAResourceDeserializers().iterator();
while (iterator.hasNext()) {
SerializableXAResourceDeserializer proxyXAResourceDeserializer = iterator.next();
if (proxyXAResourceDeserializer.canDeserialze(className)) {
_theXAResource = proxyXAResourceDeserializer.deserialze(o);
deserialized = true;
break;
}
}
// Give it a go ourselves
if (!deserialized) {
_theXAResource = (XAResource) o.readObject();
}
o.close();
if (jtaLogger.logger.isTraceEnabled()) {
jtaLogger.logger.trace("XAResourceRecord.restore_state - XAResource de-serialized");
}
} catch (Exception ex) {
// not serializable in the first place!
jtaLogger.i18NLogger.warn_resources_arjunacore_restorestate(ex);
return false;
}
} else {
/*
* Lookup new XAResource via XARecoveryModule if possible.
*/
_theXAResource = getNewXAResource();
if (_theXAResource == null) {
jtaLogger.i18NLogger.warn_resources_arjunacore_norecoveryxa(toString());
/*
* Don't prevent tx from activating because there may be
* other participants that can still recover. Plus, we will
* try to get a new XAResource later for this instance.
*/
res = true;
}
}
} else {
String creatorName = os.unpackString();
_recoveryObject =
ClassloadingUtility.loadAndInstantiateClass(
RecoverableXAConnection.class, creatorName, null);
if (_recoveryObject == null) {
throw new ClassNotFoundException();
}
_recoveryObject.unpackFrom(os);
_theXAResource = _recoveryObject.getResource();
if (jtaLogger.logger.isTraceEnabled()) {
jtaLogger.logger.trace(
"XAResourceRecord.restore_state - XAResource got from " + creatorName);
}
}
res = true;
} catch (Exception e) {
jtaLogger.i18NLogger.warn_resources_arjunacore_restorestateerror(
_theXAResource.toString(), XAHelper.xidToString(_tranID), e);
res = false;
}
if (res) res = super.restore_state(os, t);
return res;
}
