@Override
public void requestWasRemoved(ObjectContainer container, ClientContext context) {
// if request is still running, send a GetFailed with code=cancelled
if (!finished) {
synchronized (this) {
succeeded = false;
finished = true;
FetchException cancelled = new FetchException(FetchException.CANCELLED);
getFailedMessage = new GetFailedMessage(cancelled, identifier, global);
}
trySendDataFoundOrGetFailed(null, container);
}
// notify client that request was removed
FCPMessage msg = new PersistentRequestRemovedMessage(getIdentifier(), global);
if (persistenceType != PERSIST_CONNECTION) {
if (persistenceType == PERSIST_FOREVER) container.activate(client, 1);
client.queueClientRequestMessage(msg, 0, container);
}
freeData(container);
if (persistenceType == PERSIST_FOREVER) {
container.activate(fctx, 1);
if (fctx.allowedMIMETypes != null) {
container.activate(fctx.allowedMIMETypes, 5);
container.delete(fctx.allowedMIMETypes);
}
fctx.removeFrom(container);
getter.removeFrom(container, context);
if (targetFile != null) container.delete(targetFile);
if (tempFile != null) container.delete(tempFile);
if (getFailedMessage != null) {
container.activate(getFailedMessage, 5);
getFailedMessage.removeFrom(container);
}
if (postFetchProtocolErrorMessage != null) {
container.activate(postFetchProtocolErrorMessage, 5);
postFetchProtocolErrorMessage.removeFrom(container);
}
if (allDataPending != null) {
container.activate(allDataPending, 5);
allDataPending.removeFrom(container);
}
if (progressPending != null) {
container.activate(progressPending, 5);
progressPending.removeFrom(container);
}
}
super.requestWasRemoved(container, context);
}
public static boolean deleteRegistration(final RegisterContextRequest rcrNew) {
List<RegisterContextRequest> results;
final String updateRegId = rcrNew.getRegistrationId();
results =
db.query(
new Predicate<RegisterContextRequest>() {
public boolean match(RegisterContextRequest req) {
String storedRegID = req.getRegistrationId();
if (storedRegID.equals(updateRegId)) {
return true;
}
return false;
}
});
if (results.size() > 0) {
RegisterContextRequest found = results.get(0);
System.out.println("Deleting registration");
db.delete(found);
db.commit();
return true;
}
return false;
}
/**
* Terminate a subsegment. Called by the segment, which will have already removed the subsegment
* from the list. Will delete the object from the database if persistent.
*/
public void kill(
ObjectContainer container,
ClientContext context,
boolean dontDeactivateSeg,
boolean cancelledAlready) {
if (persistent) {
container.activate(segment, 1);
container.activate(blockNums, 1);
}
if (logMINOR) Logger.minor(this, "Killing " + this);
// Do unregister() first so can get and unregister each key and avoid a memory leak
unregister(container, context, getPriorityClass(container));
Integer[] oldNums = null;
synchronized (segment) {
if (cancelledAlready) {
if (!cancelled) {
Logger.error(this, "Should be cancelled already! " + this, new Exception("error"));
cancelled = true;
}
if (!blockNums.isEmpty())
Logger.error(
this, "Block nums not empty! on " + this + " : " + blockNums, new Exception("error"));
} else {
if (cancelled) return;
cancelled = true;
}
if (persistent) oldNums = blockNums.toArray(new Integer[blockNums.size()]);
blockNums.clear();
}
if (persistent && oldNums != null && oldNums.length > 0) {
for (Integer i : oldNums) container.delete(i);
}
if (persistent) removeFrom(container, context, dontDeactivateSeg);
}
public void test() {
ObjectContainer oc = Test.objectContainer();
ObjectSet objectSet = oc.queryByExample(new CallbackCanDelete("p1", null));
CallbackCanDelete ccd = (CallbackCanDelete) objectSet.next();
oc.deactivate(ccd, Integer.MAX_VALUE);
oc.delete(ccd);
}
public void removeFrom(ObjectContainer container) {
container.activate(data, 1);
data.removeFrom(container);
container.activate(targetURI, 5);
targetURI.removeFrom(container);
container.delete(this);
}
@Override
public void executeInObjectContainer(ObjectContainer objectContainer) {
ObjectSet<Training> trainings = objectContainer.query(Training.class);
while (trainings.hasNext()) {
objectContainer.delete(trainings.next());
}
}
public void realRemoveFrom(ObjectContainer container) {
synchronized (this) {
if (reallyRemoved) Logger.error(this, "Calling realRemoveFrom() twice on " + this);
reallyRemoved = true;
}
bucket.removeFrom(container);
container.delete(this);
}
@Override
public boolean hasValidKeys(
KeysFetchingLocally keys, ObjectContainer container, ClientContext context) {
if (persistent) {
container.activate(this, 1);
container.activate(blockNums, 1);
container.activate(segment, 1);
}
boolean hasSet = false;
boolean retval = false;
synchronized (segment) {
for (int i = 0; i < 10; i++) {
Integer ret;
int x;
if (blockNums.isEmpty()) {
break;
}
x = context.random.nextInt(blockNums.size());
ret = blockNums.get(x);
int block = ret;
Key key = segment.getBlockNodeKey(block, container);
if (key == null) {
if (segment.isFinishing(container) || segment.isFinished(container)) return false;
if (segment.haveBlock(block, container))
Logger.error(
this,
"Already have block "
+ ret
+ " but was in blockNums on "
+ this
+ " in hasValidKeys");
else
Logger.error(
this, "Key is null for block " + ret + " for " + this + " in hasValidKeys");
blockNums.remove(x);
if (persistent) {
container.delete(ret);
if (!hasSet) {
hasSet = true;
container.store(blockNums);
}
}
continue;
}
if (keys.hasKey(key)) {
continue;
}
retval = true;
break;
}
}
if (persistent) {
container.deactivate(blockNums, 5);
container.deactivate(segment, 1);
}
return retval;
}
public void freeData(ObjectContainer container, boolean persistForever) {
if (data != null) {
if (persistForever) container.activate(data, 1);
data.free();
if (persistForever) data.removeFrom(container);
data = null;
}
if (persistForever) container.delete(this);
}
public void deleteTemplates() {
openTemplateDb();
ObjectSet<Request> objectList = dbTemplateContainer.queryByExample(null);
while (objectList.hasNext()) {
Request r = (Request) objectList.next();
dbTemplateContainer.delete(r);
}
closeTemplateDb();
}
public void deleteRequests() {
openRequestDb();
Request req = new Request();
ObjectSet<Request> objectList = dbRequestContainer.queryByExample(req);
while (objectList.hasNext()) {
Request r = (Request) objectList.next();
dbRequestContainer.delete(r);
}
closeRequestDb();
}
public void removeFrom(
ObjectContainer container, ClientContext context, boolean dontDeactivateSeg) {
container.activate(segment, 1);
container.activate(blockNums, 1);
synchronized (segment) {
if (!cancelled) {
Logger.error(this, "Removing when not cancelled! on " + this, new Exception("error"));
cancelled = true;
}
if (!blockNums.isEmpty()) {
Logger.error(this, "Removing when blockNums not empty! on " + this, new Exception("error"));
for (Integer i : blockNums) container.delete(i);
blockNums.clear();
}
}
container.delete(blockNums);
container.delete(this);
if (!dontDeactivateSeg) container.deactivate(segment, 1);
// We do not need to call SendableGet as it has no internal data structures that need deleting.
}
public void test() {
ObjectContainer con = Test.objectContainer();
Test.deleteAllInstances(this);
IsStored isStored = new IsStored();
isStored.myString = "isStored";
con.store(isStored);
Test.ensure(con.ext().isStored(isStored));
Test.ensure(Test.occurrences(this) == 1);
con.delete(isStored);
Test.ensure(!con.ext().isStored(isStored));
Test.ensure(Test.occurrences(this) == 0);
con.commit();
if (con.ext().isStored(isStored)) {
// this will fail in CS due to locally cached references
if (!Test.clientServer) {
Test.error();
}
}
Test.ensure(Test.occurrences(this) == 0);
con.store(isStored);
Test.ensure(con.ext().isStored(isStored));
Test.ensure(Test.occurrences(this) == 1);
con.commit();
Test.ensure(con.ext().isStored(isStored));
Test.ensure(Test.occurrences(this) == 1);
con.delete(isStored);
Test.ensure(!con.ext().isStored(isStored));
Test.ensure(Test.occurrences(this) == 0);
con.commit();
if (con.ext().isStored(isStored)) {
// this will fail in CS due to locally cached references
if (!Test.clientServer) {
Test.error();
}
}
Test.ensure(Test.occurrences(this) == 0);
}
/**
* Apaga um objeto armazenado no banco de dados, após verificar que ele realmente está armazenado
* (os atributos devem ter valores idênticos).
*
* @param objeto objeto que será apagado do banco de dados @
*/
public void apagar(Object objeto) {
if (objeto != null) {
List resultado = bd.queryByExample(objeto);
if (resultado.size() > 0) {
bd.delete(objeto);
} else {
throw new RuntimeException("[apagar] Objeto não encontrado no banco de dados.");
}
} else {
System.out.println("[apagar] Erro: objeto nulo.");
}
}
@Override
public KeyListener makeKeyListener(
ObjectContainer container, ClientContext context, boolean onStartup) {
if (persistent) {
container.activate(key, 5);
container.activate(parent, 1);
container.activate(ctx, 1);
}
synchronized (this) {
if (finished) return null;
if (cancelled) return null;
}
if (key == null) {
Logger.error(
this,
"Key is null - left over BSSF? on " + this + " in makeKeyListener()",
new Exception("error"));
if (persistent) container.delete(this);
return null;
}
Key newKey = key.getNodeKey(true);
if (parent == null) {
Logger.error(
this,
"Parent is null on "
+ this
+ " persistent="
+ persistent
+ " key="
+ key
+ " ctx="
+ ctx);
if (container != null)
Logger.error(
this,
"Stored = "
+ container.ext().isStored(this)
+ " active = "
+ container.ext().isActive(this));
return null;
}
short prio = parent.getPriorityClass();
KeyListener ret = new SingleKeyListener(newKey, this, prio, persistent, realTimeFlag);
if (persistent) {
container.deactivate(key, 5);
container.deactivate(parent, 1);
container.deactivate(ctx, 1);
}
return ret;
}
public void onGotKey(Key key, KeyBlock block, ObjectContainer container, ClientContext context) {
if (persistent) {
container.activate(this, 1);
container.activate(segment, 1);
container.activate(blockNums, 1);
}
if (logMINOR) Logger.minor(this, "onGotKey(" + key + ")");
// Find and remove block if it is on this subsegment. However it may have been
// removed already.
int blockNo;
synchronized (segment) {
for (int i = 0; i < blockNums.size(); i++) {
Integer token = blockNums.get(i);
int num = token;
Key k = segment.getBlockNodeKey(num, container);
if (k != null && k.equals(key)) {
blockNums.remove(i);
if (persistent) container.delete(token);
break;
}
}
blockNo = segment.getBlockNumber(key, container);
}
if (blockNo == -1) {
Logger.minor(this, "No block found for key " + key + " on " + this);
return;
}
Integer token = Integer.valueOf(blockNo);
ClientCHK ckey = segment.getBlockKey(blockNo, container);
ClientCHKBlock cb;
try {
cb = new ClientCHKBlock((CHKBlock) block, ckey);
} catch (CHKVerifyException e) {
onFailure(
new FetchException(FetchException.BLOCK_DECODE_ERROR, e), token, container, context);
return;
}
Bucket data = extract(cb, token, container, context);
if (data == null) return;
if (!cb.isMetadata()) {
onSuccess(data, false, token, (token).intValue(), cb, container, context);
} else {
onFailure(
new FetchException(FetchException.INVALID_METADATA, "Metadata where expected data"),
token,
container,
context);
}
}
private void populate(ObjectContainer container) {
for (int i = 0; i < 10; i++) {
container.store(new Item("delme"));
}
CrashData one = new CrashData(null, "one");
CrashData two = new CrashData(one, "two");
CrashData three = new CrashData(one, "three");
container.store(one);
container.store(two);
container.store(three);
container.commit();
ObjectSet objectSet = container.query(Item.class);
while (objectSet.hasNext()) {
container.delete(objectSet.next());
}
}
public void removeFrom(ObjectContainer container, ClientContext context) {
if (logMINOR) Logger.minor(this, "removeFrom() on " + this);
container.activate(uri, 5);
uri.removeFrom(container);
if (resultingURI != null) {
container.activate(resultingURI, 5);
resultingURI.removeFrom(container);
}
// cb, parent are responsible for removing themselves
// ctx is passed in and unmodified - usually the ClientPutter removes it
container.activate(errors, 5);
errors.removeFrom(container);
if (freeData && sourceData != null && container.ext().isStored(sourceData)) {
Logger.error(this, "Data not removed!");
container.activate(sourceData, 1);
sourceData.removeFrom(container);
}
container.delete(this);
}
private void cleanBlockNums(ObjectContainer container) {
synchronized (segment) {
int initSize = blockNums.size();
Integer prev = null;
for (int i = 0; i < blockNums.size(); i++) {
Integer x = blockNums.get(i);
if (x == prev || x.equals(prev)) {
blockNums.remove(i);
i--;
if (persistent) container.delete(x);
} else prev = x;
}
if (blockNums.size() < initSize) {
Logger.error(
this,
"Cleaned block number list duplicates: was " + initSize + " now " + blockNums.size());
}
}
}
public boolean removeBlockNum(
int blockNum, ObjectContainer container, boolean callerActivatesAndSets) {
if (logMINOR) Logger.minor(this, "Removing block " + blockNum + " from " + this);
if (persistent && !callerActivatesAndSets) container.activate(blockNums, 2);
boolean found = false;
synchronized (segment) {
for (int i = 0; i < blockNums.size(); i++) {
Integer token = blockNums.get(i);
int num = token;
if (num == blockNum) {
blockNums.remove(i);
if (persistent) container.delete(token);
if (logMINOR) Logger.minor(this, "Removed block " + blockNum + " from " + this);
found = true;
break;
}
}
}
if (persistent && !callerActivatesAndSets) {
container.store(blockNums);
container.deactivate(blockNums, 2);
}
return found;
}
private static void referentialIntegrity() {
ObjectContainer container = Db4oEmbedded.openFile(DATABASE_FILE);
// #example: Referential integrity
final EventRegistry events = EventRegistryFactory.forObjectContainer(container);
events
.deleting()
.addListener(
new EventListener4<CancellableObjectEventArgs>() {
@Override
public void onEvent(
Event4<CancellableObjectEventArgs> events, CancellableObjectEventArgs eventArgs) {
final Object toDelete = eventArgs.object();
if (toDelete instanceof Pilot) {
final ObjectContainer container = eventArgs.objectContainer();
final ObjectSet<Car> cars =
container.query(
new Predicate<Car>() {
@Override
public boolean match(Car car) {
return car.getPilot() == toDelete;
}
});
if (cars.size() > 0) {
eventArgs.cancel();
}
}
}
});
// #end example
try {
Pilot pilot = container.query(Pilot.class).get(0);
container.delete(pilot);
} finally {
container.close();
}
}
/** @sharpen.remove */
public void test() throws IOException {
boolean cached = USE_CACHE.value().booleanValue();
boolean useLogFile = USE_LOGFILE.value().booleanValue();
boolean writeTrash = WRITE_TRASH.value().booleanValue();
if (cached && writeTrash) {
System.err.println(
"DISABLED CrashSimulatingTestCase: combination of write trash and cache");
// The cache may touch more bytes than the ones we modified.
// We should be safe even if we don't get this test to pass.
return;
}
if (useLogFile && writeTrash) {
System.err.println(
"DISABLED CrashSimulatingTestCase: combination of write trash and use log file");
// The log file is not a public API yet anyway.
// It's only needed for the PointerBasedIdSystem
// With the new BTreeIdSystem it's not likely to become important
// so we can safely ignore the failing write trash case.
return;
}
if (Platform4.needsLockFileThread()) {
System.out.println(
"CrashSimulatingTestCase is ignored on platforms with lock file thread.");
return;
}
String path = Path4.combine(Path4.getTempPath(), "crashSimulate");
String fileName = Path4.combine(path, "cs");
File4.delete(fileName);
File4.mkdirs(path);
createFile(baseConfig(useLogFile), fileName);
CrashSimulatingStorage crashSimulatingStorage =
new CrashSimulatingStorage(new FileStorage(), fileName);
Storage storage =
cached ? (Storage) new CachingStorage(crashSimulatingStorage) : crashSimulatingStorage;
Configuration recordConfig = baseConfig(useLogFile);
recordConfig.storage(storage);
ObjectContainer oc = Db4o.openFile(recordConfig, fileName);
ObjectSet objectSet = oc.queryByExample(new CrashData(null, "three"));
oc.delete(objectSet.next());
oc.store(new CrashData(null, "four"));
oc.store(new CrashData(null, "five"));
oc.store(new CrashData(null, "six"));
oc.store(new CrashData(null, "seven"));
oc.store(new CrashData(null, "eight"));
oc.store(new CrashData(null, "nine"));
oc.store(new CrashData(null, "10"));
oc.store(new CrashData(null, "11"));
oc.store(new CrashData(null, "12"));
oc.store(new CrashData(null, "13"));
oc.store(new CrashData(null, "14"));
oc.commit();
Query q = oc.query();
q.constrain(CrashData.class);
objectSet = q.execute();
while (objectSet.hasNext()) {
CrashData cData = (CrashData) objectSet.next();
if (!(cData._name.equals("10") || cData._name.equals("13"))) {
oc.delete(cData);
}
}
oc.commit();
oc.close();
int count = crashSimulatingStorage._batch.writeVersions(fileName, writeTrash);
checkFiles(useLogFile, fileName, "R", crashSimulatingStorage._batch.numSyncs());
checkFiles(useLogFile, fileName, "W", count);
if (VERBOSE) {
System.out.println("Total versions: " + count);
}
}
public void objectOnDelete(ObjectContainer container) {
container.delete(parent);
}
public void removeFrom(ObjectContainer container) {
container.delete(this);
}
void finishRegister(
final SendableGet[] getters,
boolean persistent,
ObjectContainer container,
final boolean anyValid,
final DatastoreCheckerItem reg) {
if (logMINOR)
Logger.minor(
this,
"finishRegister for "
+ getters
+ " anyValid="
+ anyValid
+ " reg="
+ reg
+ " persistent="
+ persistent);
if (isInsertScheduler) {
IllegalStateException e = new IllegalStateException("finishRegister on an insert scheduler");
for (int i = 0; i < getters.length; i++) {
if (persistent) container.activate(getters[i], 1);
getters[i].internalError(e, this, container, clientContext, persistent);
if (persistent) container.deactivate(getters[i], 1);
}
throw e;
}
if (persistent) {
// Add to the persistent registration queue
if (!databaseExecutor.onThread()) {
throw new IllegalStateException("Not on database thread!");
}
if (persistent) container.activate(getters, 1);
if (logMINOR) Logger.minor(this, "finishRegister() for " + getters);
if (anyValid) {
boolean wereAnyValid = false;
for (int i = 0; i < getters.length; i++) {
SendableGet getter = getters[i];
container.activate(getter, 1);
// Just check isCancelled, we have already checked the cooldown.
if (!(getter.isCancelled(container))) {
wereAnyValid = true;
if (!getter.preRegister(container, clientContext, true)) {
schedCore.innerRegister(getter, random, container, clientContext, getters);
}
} else getter.preRegister(container, clientContext, false);
}
if (!wereAnyValid) {
Logger.normal(this, "No requests valid: " + getters);
}
} else {
Logger.normal(this, "No valid requests passed in: " + getters);
}
if (reg != null) container.delete(reg);
queueFillRequestStarterQueue(true);
} else {
// Register immediately.
for (int i = 0; i < getters.length; i++) {
if ((!anyValid) || getters[i].isCancelled(null)) {
getters[i].preRegister(container, clientContext, false);
continue;
} else {
if (getters[i].preRegister(container, clientContext, true)) continue;
}
if (!getters[i].isCancelled(null))
schedTransient.innerRegister(getters[i], random, null, clientContext, getters);
}
starter.wakeUp();
}
}
@Override
public void removeFrom(ObjectContainer container) {
underlying.removeFrom(container);
container.delete(this);
}
public void removeFrom(ObjectContainer container) {
// All members are inline (arrays, ints etc), treated as values, so we can happily just call
// delete(this).
container.delete(this);
}
// MODIFICATO
// delete teh contReg inside the RegContReq that match the
// with one of the entityId inside teh entityIdList
public static void deleteRegistrationEntID(final List<String> entityIdList) {
// for each entId
for (String entId : entityIdList) {
List<RegisterContextRequest> results;
final String updateEntId = entId;
// results contains the RegContReq that contains in their list at
// least one contReg that have an entId that match with updateEntId
results =
db.query(
new Predicate<RegisterContextRequest>() {
public boolean match(RegisterContextRequest req) {
// check in the contRegList if there is one
// with the entId that match the updateEntId
List<ContextRegistration> contRegList = req.getContextRegistration();
// for each contReg
for (ContextRegistration cr : contRegList) {
// for each entId in contReg
for (EntityId entId : cr.getEntityId()) {
if (entId.getId().contentEquals(updateEntId)) return true;
}
}
return false;
}
});
if (results.size() > 0) {
// for each RegContReq find out which
// contReg hash the entityId that match
// with updateEntId and remove it
// store a backup copy of that
// RegContReq because it must be delete
// before writing the new one
for (RegisterContextRequest regContReq : results) {
// check in the contRegList if there is one
// with the entId that match the updateEntId
List<ContextRegistration> contRegList = regContReq.getContextRegistration();
// for each contReg
for (ContextRegistration cr : contRegList) {
// for each entId in contReg
for (EntityId id : cr.getEntityId()) {
if (id.getId().contentEquals(updateEntId)) {
// delete the RegisterContextReq with matching entId
RegisterContextRequest found = regContReq;
System.out.println("Deleting registration");
db.delete(found);
db.commit();
// delete the contReg, inside the RegContReq, that have a
// matching entId
regContReq.getContextRegistration().remove(cr);
// if the RegisterContextRequest is not empty
// it must be re-store the contRegs inside
// the RegisterContextRequest that haven't a match
// with updateEntId
if (!regContReq.getContextRegistration().isEmpty()) {
storeRegistration(regContReq);
}
}
}
if (contRegList.isEmpty()) {
break;
}
}
}
}
}
}