@Override
public String getItemAsString(final Properties props) throws XQException {
try {
return it.node() && it.type != NodeType.TXT ? serialize() : Token.string(it.atom(null));
} catch (final QueryException e) {
throw new XQException(e.getMessage(), e.code());
}
}
@Override
public String getAtomicValue() throws XQException {
opened();
if (it.node()) throw new BXQException(ATOM);
try {
return Token.string(it.atom(null));
} catch (final QueryException e) {
// function item
throw new BXQException(ATOM);
}
}
@Override
public URI getNodeUri() throws XQException {
opened();
if (!it.node()) throw new BXQException(NODE);
final ANode node = (ANode) it;
try {
return new URI(Token.string(node.base()));
} catch (final URISyntaxException ex) {
throw new BXQException(ex.toString());
}
}
@Override
public final Item ebv(final QueryContext ctx, final InputInfo ii) throws QueryException {
Item it = null;
if (type().zeroOrOne()) {
it = item(ctx, input);
} else {
final Iter ir = iter(ctx);
it = ir.next();
if (it != null && !it.node() && ir.next() != null) CONDTYPE.thrw(input, this);
}
return it == null ? Bln.FALSE : it;
}
@Override
public void prepare() throws QueryException {
// build data with all documents, to prevent dirty reads
md = new MemData(data);
for (final Item d : docs) {
final MemData docData;
if (d.node()) {
// adding a document node
final ANode doc = (ANode) d;
if (doc.ndType() != NodeType.DOC) UPDOCTYPE.thrw(input, doc);
docData = new MemData(data);
new DataBuilder(docData).build(doc);
} else if (d.str()) {
// adding file(s) from a path
final String docpath = string(d.atom(input));
final String nm = ctx.mprop.random(data.meta.name);
final DirParser p = new DirParser(IO.get(docpath), ctx.prop);
final MemBuilder b = new MemBuilder(nm, p, ctx.prop);
try {
docData = b.build();
} catch (final IOException e) {
throw DOCERR.thrw(input, docpath);
}
} else {
throw STRNODTYPE.thrw(input, this, d.type);
}
md.insert(md.meta.size, -1, docData);
}
// set new names, if needed
final IntList pres = md.doc();
if (pres.size() == 1 && name != null) {
// name is specified and a single document is added: set the name
final byte[] nm = path == null ? name : concat(path, SLASH, name);
md.update(pres.get(0), Data.DOC, nm);
} else if (path != null) {
// path is specified: replace the path of each new document
for (int i = 0, is = pres.size(); i < is; i++) {
final int d = pres.get(i);
final byte[] old = md.text(d, true);
final int p = lastIndexOf(old, '/');
final byte[] nm = p < 0 ? old : subtoken(old, p + 1);
md.update(d, Data.DOC, concat(path, SLASH, nm));
}
}
}
@Override
public Node getNode() throws XQException {
opened();
if (!it.node()) throw new BXQException(WRONG, NodeType.NOD, it.type);
return ((ANode) it).toJava();
}
/**
* Checks if the specified expression is a node. Returns the node or an exception.
*
* @param it item to be checked
* @return item
* @throws QueryException query exception
*/
public final ANode checkNode(final Item it) throws QueryException {
if (!it.node()) Err.type(this, NodeType.NOD, it);
return (ANode) it;
}