/**
* Method to check if an element is already persistent, or is managed by a different
* ExecutionContext. If not persistent, this will persist it.
*
* @param ec execution context
* @param element The element
* @param fieldValues any initial field values to use if persisting the element
* @return Whether the element was persisted during this call
*/
protected boolean validateElementForWriting(
ExecutionContext ec, Object element, FieldValues fieldValues) {
// TODO Pass in cascade flag and if element not present then throw exception
// Check the element type for this collection
if (!elementIsPersistentInterface
&& !validateElementType(ec.getClassLoaderResolver(), element)) {
throw new ClassCastException(
Localiser.msg(
"056033",
element.getClass().getName(),
ownerMemberMetaData.getFullFieldName(),
elementType));
}
boolean persisted = false;
if (elementsAreEmbedded || elementsAreSerialised) {
// Element is embedded/serialised so has no id
} else {
ObjectProvider elementSM = ec.findObjectProvider(element);
if (elementSM != null && elementSM.isEmbedded()) {
// Element is already with ObjectProvider and is embedded in another field!
throw new NucleusUserException(
Localiser.msg("056028", ownerMemberMetaData.getFullFieldName(), element));
}
persisted = SCOUtils.validateObjectForWriting(ec, element, fieldValues);
}
return persisted;
}
/**
* Method to initialise the SCO from an existing value.
*
* @param m The object to set from
* @param forInsert Whether the object needs inserting in the datastore with this value
* @param forUpdate Whether to update the datastore with this value
*/
public synchronized void initialise(java.util.Map m, boolean forInsert, boolean forUpdate) {
if (m != null) {
// Check for the case of serialised maps, and assign ObjectProviders to any PC keys/values
// without
if (SCOUtils.mapHasSerialisedKeysAndValues(ownerMmd)
&& (ownerMmd.getMap().keyIsPersistent() || ownerMmd.getMap().valueIsPersistent())) {
ExecutionContext ec = ownerOP.getExecutionContext();
Iterator iter = m.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
Object key = entry.getKey();
Object value = entry.getValue();
if (ownerMmd.getMap().keyIsPersistent()) {
ObjectProvider objSM = ec.findObjectProvider(key);
if (objSM == null) {
objSM =
ec.getNucleusContext()
.getObjectProviderFactory()
.newForEmbedded(ec, key, false, ownerOP, ownerMmd.getAbsoluteFieldNumber());
}
}
if (ownerMmd.getMap().valueIsPersistent()) {
ObjectProvider objSM = ec.findObjectProvider(value);
if (objSM == null) {
objSM =
ec.getNucleusContext()
.getObjectProviderFactory()
.newForEmbedded(ec, value, false, ownerOP, ownerMmd.getAbsoluteFieldNumber());
}
}
}
}
if (backingStore != null && useCache && !isCacheLoaded) {
// Mark as loaded
isCacheLoaded = true;
}
if (forInsert) {
if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
NucleusLogger.PERSISTENCE.debug(
Localiser.msg(
"023007", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + m.size()));
}
makeDirty();
if (useCache) {
// Make sure we have all values loaded (e.g if in optimistic tx and we put new entry)
loadFromStore();
}
if (backingStore != null) {
if (SCOUtils.useQueuedUpdate(ownerOP)) {
Iterator iter = m.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
ownerOP
.getExecutionContext()
.addOperationToQueue(
new MapPutOperation(ownerOP, backingStore, entry.getKey(), entry.getValue()));
}
} else {
backingStore.putAll(ownerOP, m);
}
}
delegate.putAll(m);
} else if (forUpdate) {
if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
NucleusLogger.PERSISTENCE.debug(
Localiser.msg(
"023008", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + m.size()));
}
// TODO This is clear+putAll. Improve it to work out what is changed
delegate.clear();
if (backingStore != null) {
if (SCOUtils.useQueuedUpdate(ownerOP)) {
// If not yet flushed to store then no need to add to queue (since will be handled via
// insert)
if (ownerOP.isFlushedToDatastore() || !ownerOP.getLifecycleState().isNew()) {
ownerOP
.getExecutionContext()
.addOperationToQueue(new MapClearOperation(ownerOP, backingStore));
}
} else {
backingStore.clear(ownerOP);
}
}
if (useCache) {
// Make sure we have all values loaded (e.g if in optimistic tx and we put new entry)
loadFromStore();
}
if (backingStore != null) {
if (SCOUtils.useQueuedUpdate(ownerOP)) {
// If not yet flushed to store then no need to add to queue (since will be handled via
// insert)
if (ownerOP.isFlushedToDatastore() || !ownerOP.getLifecycleState().isNew()) {
Iterator iter = m.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
ownerOP
.getExecutionContext()
.addOperationToQueue(
new MapPutOperation(
ownerOP, backingStore, entry.getKey(), entry.getValue()));
}
}
} else {
backingStore.putAll(ownerOP, m);
}
}
delegate.putAll(m);
makeDirty();
} else {
if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
NucleusLogger.PERSISTENCE.debug(
Localiser.msg(
"023007", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + m.size()));
}
delegate.clear();
delegate.putAll(m);
}
}
}
protected static Object getObjectUsingNondurableIdForResult(
final Result result,
final AbstractClassMetaData cmd,
final ExecutionContext ec,
boolean ignoreCache,
final int[] fpMembers,
String tableName,
StoreManager storeMgr,
Table table) {
if (cmd.hasDiscriminatorStrategy()) {
// Check the class for this discriminator value
String familyName = HBaseUtils.getFamilyNameForColumn(table.getDiscriminatorColumn());
String columnName = HBaseUtils.getQualifierNameForColumn(table.getDiscriminatorColumn());
Object discValue = new String(result.getValue(familyName.getBytes(), columnName.getBytes()));
if (cmd.getDiscriminatorStrategy() == DiscriminatorStrategy.CLASS_NAME
&& !cmd.getFullClassName().equals(discValue)) {
return null;
} else if (cmd.getDiscriminatorStrategy() == DiscriminatorStrategy.VALUE_MAP
&& !cmd.getDiscriminatorValue().equals(discValue)) {
return null;
}
}
final FieldManager fm = new FetchFieldManager(ec, cmd, result, table);
SCOID id = new SCOID(cmd.getFullClassName());
Object pc =
ec.findObject(
id,
new FieldValues() {
// ObjectProvider calls the fetchFields method
public void fetchFields(ObjectProvider op) {
op.replaceFields(fpMembers, fm);
}
public void fetchNonLoadedFields(ObjectProvider op) {
op.replaceNonLoadedFields(fpMembers, fm);
}
public FetchPlan getFetchPlanForLoading() {
return null;
}
},
null,
ignoreCache,
false);
if (cmd.isVersioned()) {
// Set the version on the object
ObjectProvider op = ec.findObjectProvider(pc);
Object version = null;
VersionMetaData vermd = cmd.getVersionMetaDataForClass();
if (vermd.getFieldName() != null) {
// Set the version from the field value
AbstractMemberMetaData verMmd = cmd.getMetaDataForMember(vermd.getFieldName());
version = op.provideField(verMmd.getAbsoluteFieldNumber());
} else {
// Get the surrogate version from the datastore
version = HBaseUtils.getSurrogateVersionForObject(cmd, result, tableName, storeMgr);
}
op.setVersion(version);
}
if (result.getRow() != null) {
ObjectProvider sm = ec.findObjectProvider(pc);
sm.setAssociatedValue("HBASE_ROW_KEY", result.getRow());
}
return pc;
}
protected static Object getObjectUsingDatastoreIdForResult(
final Result result,
final AbstractClassMetaData cmd,
final ExecutionContext ec,
boolean ignoreCache,
final int[] fpMembers,
String tableName,
StoreManager storeMgr,
Table table) {
if (cmd.hasDiscriminatorStrategy()) {
// Check the class for this discriminator value
String familyName = HBaseUtils.getFamilyNameForColumn(table.getDiscriminatorColumn());
String columnName = HBaseUtils.getQualifierNameForColumn(table.getDiscriminatorColumn());
Object discValue = new String(result.getValue(familyName.getBytes(), columnName.getBytes()));
if (cmd.getDiscriminatorStrategy() == DiscriminatorStrategy.CLASS_NAME
&& !cmd.getFullClassName().equals(discValue)) {
return null;
} else if (cmd.getDiscriminatorStrategy() == DiscriminatorStrategy.VALUE_MAP
&& !cmd.getDiscriminatorValue().equals(discValue)) {
return null;
}
}
String dsidFamilyName = HBaseUtils.getFamilyNameForColumn(table.getDatastoreIdColumn());
String dsidColumnName = HBaseUtils.getQualifierNameForColumn(table.getDatastoreIdColumn());
Object id = null;
try {
byte[] bytes = result.getValue(dsidFamilyName.getBytes(), dsidColumnName.getBytes());
if (bytes != null) {
ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
ObjectInputStream ois = new ObjectInputStream(bis);
Object key = ois.readObject();
id =
ec.getNucleusContext().getIdentityManager().getDatastoreId(cmd.getFullClassName(), key);
ois.close();
bis.close();
} else {
throw new NucleusException(
"Retrieved identity for family="
+ dsidFamilyName
+ " column="
+ dsidColumnName
+ " IS NULL");
}
} catch (Exception e) {
throw new NucleusException(e.getMessage(), e);
}
final FieldManager fm = new FetchFieldManager(ec, cmd, result, table);
Object pc =
ec.findObject(
id,
new FieldValues() {
// ObjectProvider calls the fetchFields method
public void fetchFields(ObjectProvider op) {
op.replaceFields(fpMembers, fm);
}
public void fetchNonLoadedFields(ObjectProvider op) {
op.replaceNonLoadedFields(fpMembers, fm);
}
public FetchPlan getFetchPlanForLoading() {
return null;
}
},
null,
ignoreCache,
false);
if (cmd.isVersioned()) {
// Set the version on the object
ObjectProvider op = ec.findObjectProvider(pc);
Object version = null;
VersionMetaData vermd = cmd.getVersionMetaDataForClass();
if (vermd.getFieldName() != null) {
// Set the version from the field value
AbstractMemberMetaData verMmd = cmd.getMetaDataForMember(vermd.getFieldName());
version = op.provideField(verMmd.getAbsoluteFieldNumber());
} else {
// Get the surrogate version from the datastore
version = HBaseUtils.getSurrogateVersionForObject(cmd, result, tableName, storeMgr);
}
op.setVersion(version);
}
if (result.getRow() != null) {
ObjectProvider sm = ec.findObjectProvider(pc);
sm.setAssociatedValue("HBASE_ROW_KEY", result.getRow());
}
return pc;
}
/**
* Method to initialise the SCO from an existing value.
*
* @param o The object to set from
* @param forInsert Whether the object needs inserting in the datastore with this value
* @param forUpdate Whether to update the datastore with this value
*/
public void initialise(Object o, boolean forInsert, boolean forUpdate) {
Collection c = (Collection) o;
if (c != null) {
// Check for the case of serialised PC elements, and assign ObjectProviders to the elements
// without
if (SCOUtils.collectionHasSerialisedElements(ownerMmd)
&& ownerMmd.getCollection().elementIsPersistent()) {
ExecutionContext ec = ownerOP.getExecutionContext();
Iterator iter = c.iterator();
while (iter.hasNext()) {
Object pc = iter.next();
ObjectProvider objSM = ec.findObjectProvider(pc);
if (objSM == null) {
objSM =
ec.newObjectProviderForEmbedded(
pc, false, ownerOP, ownerMmd.getAbsoluteFieldNumber());
}
}
}
if (backingStore != null && useCache && !isCacheLoaded) {
// Mark as loaded
isCacheLoaded = true;
}
if (forInsert) {
if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
NucleusLogger.PERSISTENCE.debug(
LOCALISER.msg(
"023007", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + c.size()));
}
if (useCache) {
loadFromStore();
}
if (ownerOP != null && ownerOP.getExecutionContext().getManageRelations()) {
// Relationship management
Iterator iter = c.iterator();
RelationshipManager relMgr =
ownerOP.getExecutionContext().getRelationshipManager(ownerOP);
while (iter.hasNext()) {
relMgr.relationAdd(ownerMmd.getAbsoluteFieldNumber(), iter.next());
}
}
if (backingStore != null) {
if (SCOUtils.useQueuedUpdate(queued, ownerOP)) {
for (Object element : c) {
ownerOP
.getExecutionContext()
.addOperationToQueue(new CollectionAddOperation(ownerOP, backingStore, element));
}
} else {
try {
backingStore.addAll(ownerOP, c, (useCache ? delegate.size() : -1));
} catch (NucleusDataStoreException dse) {
NucleusLogger.PERSISTENCE.warn(
LOCALISER.msg("023013", "addAll", ownerMmd.getName(), dse));
}
}
}
delegate.addAll(c);
makeDirty();
} else if (forUpdate) {
if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
NucleusLogger.PERSISTENCE.debug(
LOCALISER.msg(
"023008", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + c.size()));
}
// Detect which objects are added and which are deleted
if (useCache) {
isCacheLoaded = false; // Mark as false since need to load the old collection
loadFromStore();
for (Object elem : c) {
if (!delegate.contains(elem)) {
add(elem);
}
}
java.util.TreeSet delegateCopy = new java.util.TreeSet(delegate);
for (Object elem : delegateCopy) {
if (!c.contains(elem)) {
remove(elem);
}
}
} else {
for (Object elem : c) {
if (!contains(elem)) {
add(elem);
}
}
Iterator iter = iterator();
while (iter.hasNext()) {
Object elem = iter.next();
if (!c.contains(elem)) {
remove(elem);
}
}
}
} else {
if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
NucleusLogger.PERSISTENCE.debug(
LOCALISER.msg(
"023007", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + c.size()));
}
delegate.clear();
delegate.addAll(c);
}
}
}
/**
* Method to initialise the SCO from an existing value.
*
* @param c The object to set from
* @param forInsert Whether the object needs inserting in the datastore with this value
* @param forUpdate Whether to update the SCO in the datastore with this value
*/
public void initialise(java.util.ArrayList c, boolean forInsert, boolean forUpdate) {
if (c != null) {
// Check for the case of serialised PC elements, and assign ObjectProviders to the elements
// without
if (SCOUtils.collectionHasSerialisedElements(ownerMmd)
&& ownerMmd.getCollection().elementIsPersistent()) {
ExecutionContext ec = ownerOP.getExecutionContext();
Iterator iter = c.iterator();
while (iter.hasNext()) {
Object pc = iter.next();
ObjectProvider objOP = ec.findObjectProvider(pc);
if (objOP == null) {
objOP =
ec.getNucleusContext()
.getObjectProviderFactory()
.newForEmbedded(ec, pc, false, ownerOP, ownerMmd.getAbsoluteFieldNumber());
}
}
}
if (backingStore != null && useCache && !isCacheLoaded) {
// Mark as loaded so we just use the value
isCacheLoaded = true;
}
if (forInsert) {
if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
NucleusLogger.PERSISTENCE.debug(
Localiser.msg(
"023007", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + c.size()));
}
if (useCache) {
loadFromStore();
}
if (backingStore != null) {
if (SCOUtils.useQueuedUpdate(queued, ownerOP)) {
for (Object element : c) {
ownerOP
.getExecutionContext()
.addOperationToQueue(new CollectionAddOperation(ownerOP, backingStore, element));
}
} else {
try {
backingStore.addAll(ownerOP, c, (useCache ? delegate.size() : -1));
} catch (NucleusDataStoreException dse) {
NucleusLogger.PERSISTENCE.warn(
Localiser.msg("023013", "addAll", ownerMmd.getName(), dse));
}
}
}
makeDirty();
delegate.addAll(c);
} else if (forUpdate) {
if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
NucleusLogger.PERSISTENCE.debug(
Localiser.msg(
"023008", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + c.size()));
}
// TODO This does clear+addAll : Improve this and work out which elements are added and
// which deleted
if (backingStore != null) {
if (SCOUtils.useQueuedUpdate(queued, ownerOP)) {
ownerOP
.getExecutionContext()
.addOperationToQueue(new CollectionClearOperation(ownerOP, backingStore));
} else {
backingStore.clear(ownerOP);
}
}
if (useCache) {
loadFromStore();
}
if (backingStore != null) {
if (SCOUtils.useQueuedUpdate(queued, ownerOP)) {
for (Object element : c) {
ownerOP
.getExecutionContext()
.addOperationToQueue(new CollectionAddOperation(ownerOP, backingStore, element));
}
} else {
try {
backingStore.addAll(ownerOP, c, (useCache ? delegate.size() : -1));
} catch (NucleusDataStoreException dse) {
NucleusLogger.PERSISTENCE.warn(
Localiser.msg("023013", "addAll", ownerMmd.getName(), dse));
}
}
}
delegate.addAll(c);
makeDirty();
} else {
if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
NucleusLogger.PERSISTENCE.debug(
Localiser.msg(
"023007", ownerOP.getObjectAsPrintable(), ownerMmd.getName(), "" + c.size()));
}
delegate.clear();
delegate.addAll(c);
}
}
}