boolean getMoreRelationships(NodeManager nodeManager) {
// ArrayMap<String, IntArray> tmpRelMap = relationshipMap;
Pair<ArrayMap<String, RelIdArray>, Map<Long, RelationshipImpl>> pair;
synchronized (this) {
if (!relChainPosition.hasMore()) {
return false;
}
pair = nodeManager.getMoreRelationships(this);
ArrayMap<String, RelIdArray> addMap = pair.first();
if (addMap.size() == 0) {
return false;
}
for (String type : addMap.keySet()) {
RelIdArray addRels = addMap.get(type);
// IntArray srcRels = tmpRelMap.get( type );
RelIdArray srcRels = relationshipMap.get(type);
if (srcRels == null) {
relationshipMap.put(type, addRels);
} else {
srcRels.addAll(addRels);
}
}
}
nodeManager.putAllInRelCache(pair.other());
return true;
}
@Override
public void attemptWaitForTxCompletionAndBlockFutureTransactions(long maxWaitTimeMillis) {
msgLog.logMessage("TxManager is blocking new transactions and waiting for active to fail...");
blocked = true;
List<Transaction> failedTransactions = new ArrayList<Transaction>();
synchronized (txThreadMap) {
for (Transaction tx : txThreadMap.values()) {
try {
int status = tx.getStatus();
if (status != Status.STATUS_COMMITTING
&& status
!= Status
.STATUS_ROLLING_BACK) { // Set it to rollback only if it's not committing or
// rolling back
tx.setRollbackOnly();
}
} catch (IllegalStateException e) { // OK
failedTransactions.add(tx);
} catch (SystemException e) { // OK
failedTransactions.add(tx);
}
}
}
msgLog.logMessage(
"TxManager blocked transactions"
+ ((failedTransactions.isEmpty()
? ""
: ", but failed for: " + failedTransactions.toString())));
long endTime = System.currentTimeMillis() + maxWaitTimeMillis;
while (txThreadMap.size() > 0 && System.currentTimeMillis() < endTime) Thread.yield();
}
public void delete(NodeManager nodeManager) {
nodeManager.acquireLock(this, LockType.WRITE);
boolean success = false;
try {
ArrayMap<Integer, PropertyData> skipMap = nodeManager.getCowPropertyRemoveMap(this, true);
ArrayMap<Integer, PropertyData> removedProps = nodeManager.deleteNode(this);
if (removedProps.size() > 0) {
for (int index : removedProps.keySet()) {
skipMap.put(index, removedProps.get(index));
}
}
success = true;
} finally {
nodeManager.releaseLock(this, LockType.WRITE);
if (!success) {
nodeManager.setRollbackOnly();
}
}
}
public void begin(ForceMode forceMode) throws NotSupportedException, SystemException {
if (blocked) {
throw new SystemException(
"TxManager is preventing new transactions from starting " + "due a shutdown is imminent");
}
assertTmOk("tx begin");
Thread thread = Thread.currentThread();
TransactionImpl tx = txThreadMap.get(thread);
if (tx != null) {
throw logAndReturn(
"TM error tx begin", new NotSupportedException("Nested transactions not supported"));
}
tx = new TransactionImpl(this, forceMode);
txThreadMap.put(thread, tx);
int concurrentTxCount = txThreadMap.size();
if (concurrentTxCount > peakConcurrentTransactions) {
peakConcurrentTransactions = concurrentTxCount;
}
startedTxCount.incrementAndGet();
// start record written on resource enlistment
}
private Map<Long, RelationshipImpl> getMoreRelationships(
NodeManager nodeManager, ArrayMap<String, RelIdArray> tmpRelMap) {
if (!relChainPosition.hasMore()) {
return null;
}
Pair<ArrayMap<String, RelIdArray>, Map<Long, RelationshipImpl>> pair =
nodeManager.getMoreRelationships(this);
ArrayMap<String, RelIdArray> addMap = pair.first();
if (addMap.size() == 0) {
return null;
}
for (String type : addMap.keySet()) {
RelIdArray addRels = addMap.get(type);
RelIdArray srcRels = tmpRelMap.get(type);
if (srcRels == null) {
tmpRelMap.put(type, addRels);
} else {
srcRels.addAll(addRels);
}
}
return pair.other();
// nodeManager.putAllInRelCache( pair.other() );
}
public int getActiveTxCount() {
return txThreadMap.size();
}
public void delete() {
NodeImpl startNode = null;
NodeImpl endNode = null;
boolean startNodeLocked = false;
boolean endNodeLocked = false;
nodeManager.acquireLock(this, LockType.WRITE);
boolean success = false;
try {
startNode = nodeManager.getLightNode(startNodeId);
if (startNode != null) {
nodeManager.acquireLock(startNode, LockType.WRITE);
startNodeLocked = true;
}
endNode = nodeManager.getLightNode(endNodeId);
if (endNode != null) {
nodeManager.acquireLock(endNode, LockType.WRITE);
endNodeLocked = true;
}
// no need to load full relationship, all properties will be
// deleted when relationship is deleted
ArrayMap<Integer, PropertyData> skipMap = nodeManager.getCowPropertyRemoveMap(this, true);
ArrayMap<Integer, PropertyData> removedProps = nodeManager.deleteRelationship(this);
if (removedProps.size() > 0) {
for (int index : removedProps.keySet()) {
skipMap.put(index, removedProps.get(index));
}
}
success = true;
if (startNode != null) {
startNode.removeRelationship(type, id);
}
if (endNode != null) {
endNode.removeRelationship(type, id);
}
success = true;
} finally {
boolean releaseFailed = false;
try {
if (startNodeLocked) {
nodeManager.releaseLock(startNode, LockType.WRITE);
}
} catch (Exception e) {
releaseFailed = true;
e.printStackTrace();
}
try {
if (endNodeLocked) {
nodeManager.releaseLock(endNode, LockType.WRITE);
}
} catch (Exception e) {
releaseFailed = true;
e.printStackTrace();
}
nodeManager.releaseLock(this, LockType.WRITE);
if (!success) {
setRollbackOnly();
}
if (releaseFailed) {
throw new LockException(
"Unable to release locks ["
+ startNode
+ ","
+ endNode
+ "] in relationship delete->"
+ this);
}
}
}
synchronized Object getTxLockElementCount() {
return txLockElementMap.size();
}