private <R> R modifyCollection(
DBBroker broker,
XmldbURI collectionURI,
DatabaseItemModifier<org.exist.collections.Collection, R> modifier)
throws XMLDBException, LockException, PermissionDeniedException, IOException, EXistException,
TriggerException, SyntaxException {
final TransactionManager transact = broker.getBrokerPool().getTransactionManager();
final Txn transaction = transact.beginTransaction();
org.exist.collections.Collection coll = null;
try {
coll = broker.openCollection(collectionURI, Lock.WRITE_LOCK);
if (coll == null) {
throw new XMLDBException(
ErrorCodes.INVALID_COLLECTION, "Collection " + collectionURI.toString() + " not found");
}
final R result = modifier.modify(coll);
broker.saveCollection(transaction, coll);
transact.commit(transaction);
broker.flush();
return result;
} catch (final EXistException ee) {
transact.abort(transaction);
throw ee;
} catch (final XMLDBException xmldbe) {
transact.abort(transaction);
throw xmldbe;
} catch (final LockException le) {
transact.abort(transaction);
throw le;
} catch (final PermissionDeniedException pde) {
transact.abort(transaction);
throw pde;
} catch (final IOException ioe) {
transact.abort(transaction);
throw ioe;
} catch (final TriggerException te) {
transact.abort(transaction);
throw te;
} catch (final SyntaxException se) {
transact.abort(transaction);
throw se;
} finally {
transact.close(transaction);
if (coll != null) {
coll.release(Lock.WRITE_LOCK);
}
}
}
private <R> R modifyResource(
DBBroker broker, Resource resource, DatabaseItemModifier<DocumentImpl, R> modifier)
throws XMLDBException, LockException, PermissionDeniedException, EXistException,
SyntaxException {
final TransactionManager transact = broker.getBrokerPool().getTransactionManager();
final Txn transaction = transact.beginTransaction();
DocumentImpl document = null;
try {
document = ((AbstractEXistResource) resource).openDocument(broker, Lock.WRITE_LOCK);
final SecurityManager sm = broker.getBrokerPool().getSecurityManager();
if (!document.getPermissions().validate(user, Permission.WRITE)
&& !sm.hasAdminPrivileges(user)) {
throw new XMLDBException(
ErrorCodes.PERMISSION_DENIED,
"you are not the owner of this resource; owner = "
+ document.getPermissions().getOwner());
}
final R result = modifier.modify(document);
broker.storeXMLResource(transaction, document);
transact.commit(transaction);
return result;
} catch (final EXistException ee) {
transact.abort(transaction);
throw ee;
} catch (final XMLDBException xmldbe) {
transact.abort(transaction);
throw xmldbe;
} catch (final LockException le) {
transact.abort(transaction);
throw le;
} catch (final PermissionDeniedException pde) {
transact.abort(transaction);
throw pde;
} catch (final SyntaxException se) {
transact.abort(transaction);
throw se;
} finally {
transact.close(transaction);
if (document != null) {
((AbstractEXistResource) resource).closeDocument(document, Lock.WRITE_LOCK);
}
}
}
