targetElement = targetNode.parent();
} else {
targetElement = (DatabaseElementNode)targetNode;
}
} else if (!pasteNode.isElement()) {
throw new WikiDataException(WikiDataException.InvalidPasteTarget, target.toParameterString());
}
if (pasteNode.isElement()) {
if (targetElement != null) {
if (!targetElement.isGroup()) {
throw new WikiDataException(WikiDataException.InvalidPasteTarget, target.toParameterString());
}
}
Connection con = _connector.getConnection();
try {
SQLDatabaseSchema schema = new SQLDatabaseSchema(con, _versionIndex, _wiki.name());
DocumentNode insertNode = null;
if (targetElement != null) {
// FIXME #copypaste: This code looks unnecessarily complicated
// Isn't:
//
// (GroupSchemaNode)schema.get(targetElement.schema().id())
//
// entirely equivalent to:
//
// (GroupSchemaNode)targetElement.schema()
//
// ?
insertNode = getPasteInsertNode((GroupSchemaNode)schema.get(targetElement.schema().id()), (PasteElementNode)pasteNode, schema);
} else {
insertNode = getPasteInsertNode(null, (PasteElementNode)pasteNode, schema);
}
if (insertNode != null) {
Version version = _versionIndex.getNextVersion(new ProvenanceCopy(user, target, sourceURL));
try {
con.setAutoCommit(false);
try {
if (target.isRootIdentifier()) {
new DatabaseWriter(con, this).insertRootNode((DocumentGroupNode)insertNode, version);
} else {
new DatabaseWriter(con, this).insertNode((NodeIdentifier)target, insertNode, version);
}
for (int i = schema().size(); i < schema.size(); i++) {
new DatabaseWriter(con, this).insertSchemaNode(schema.get(i), version);
}
_versionIndex.add(version);
_versionIndex.store(con);
} catch (org.dbwiki.exception.WikiException wikiException) {
con.rollback();
con.close();
throw wikiException;
}
con.commit();
con.close();
} catch (java.sql.SQLException sqlException) {
throw new WikiFatalException(sqlException);
}
_schema = schema;
}
} catch (java.sql.SQLException sqlException) {
throw new WikiFatalException(sqlException);
}
} else {
// targetElement should be nonnull
assert(targetElement != null);
if (!targetElement.isAttribute()) {
throw new WikiDataException(WikiDataException.InvalidPasteTarget, target.toParameterString());
}
Update update = new Update();
update.add(new NodeUpdate(targetElement.identifier(), ((PasteTextNode)pasteNode).getValue()));
updateNodeWrapped(targetElement, update, _versionIndex.getNextVersion(new ProvenanceCopy(user, targetElement.identifier(), sourceURL)));
}