/**
* Returns all namespace keys and values. Should be only called for element nodes.
*
* @param pre pre value
* @return key and value ids
*/
public final Atts ns(final int pre) {
final Atts as = new Atts();
if (nsFlag(pre)) {
final int[] nsp = nspaces.get(pre, this);
for (int n = 0; n < nsp.length; n += 2)
as.add(nspaces.prefix(nsp[n]), nspaces.uri(nsp[n + 1]));
}
return as;
}
@Override
protected void finishOpen() throws IOException {
try {
final AttributesImpl attrs = new AttributesImpl();
final int as = attributes.size();
for (int a = 0; a < as; a++) {
final byte[] name = attributes.name(a);
final String uri = string(namespaces.get(prefix(name)));
final String lname = string(local(name));
final String rname = string(name);
final String value = string(attributes.value(a));
attrs.addAttribute(uri, lname, rname, null, value);
}
final String uri = string(namespaces.get(elem.prefix()));
final String lname = string(elem.local());
final String rname = string(elem.string());
contentHandler.startElement(uri, lname, rname, attrs);
} catch (final SAXException ex) {
throw new IOException(ex);
}
}
@Override
protected void attribute(final byte[] name, final byte[] value, final boolean standalone) {
byte[] prefix = null;
if (startsWith(name, XMLNS)) {
if (name.length == 5) {
prefix = EMPTY;
} else if (name[5] == ':') {
prefix = substring(name, 6);
}
}
if (prefix != null) {
namespaces.put(prefix, value);
} else {
attributes.add(name, value);
}
}
/**
* Inserts a data instance at the specified pre value. Note that the specified data instance must
* differ from this instance.
*
* @param ipre value at which to insert new data
* @param ipar parent pre value of node
* @param clip data clip
*/
public final void insert(final int ipre, final int ipar, final DataClip clip) {
meta.update();
// update value and document indexes
if (meta.updindex) indexBegin();
resources.insert(ipre, clip);
final int dsize = clip.size();
final int buf = Math.min(dsize, IO.BLOCKSIZE >> IO.NODEPOWER);
// resize buffer to cache more entries
buffer(buf);
// find all namespaces in scope to avoid duplicate declarations
final TokenMap nsScope = nspaces.scope(ipar, this);
// loop through all entries
final IntList preStack = new IntList();
final NSNode nsRoot = nspaces.current();
final HashSet<NSNode> newNodes = new HashSet<NSNode>();
final IntList flagPres = new IntList();
// indicates if database only contains a dummy node
final Data data = clip.data;
int c = 0;
for (int dpre = clip.start; dpre < clip.end; ++dpre, ++c) {
if (c != 0 && c % buf == 0) insert(ipre + c - buf);
final int pre = ipre + c;
final int dkind = data.kind(dpre);
final int dpar = data.parent(dpre, dkind);
// ipar < 0 if document nodes on top level are added
final int dis = dpar >= 0 ? dpre - dpar : ipar >= 0 ? pre - ipar : 0;
final int par = dis == 0 ? -1 : pre - dis;
if (c == 0) nspaces.root(par, this);
while (!preStack.isEmpty() && preStack.peek() > par) nspaces.close(preStack.pop());
switch (dkind) {
case DOC:
// add document
nspaces.prepare();
final int s = data.size(dpre, dkind);
doc(pre, s, data.text(dpre, true));
meta.ndocs++;
preStack.push(pre);
break;
case ELEM:
// add element
nspaces.prepare();
boolean ne = false;
if (data.nsFlag(dpre)) {
final Atts at = data.ns(dpre);
for (int a = 0; a < at.size(); ++a) {
// see if prefix has been declared/ is part of current ns scope
final byte[] old = nsScope.get(at.name(a));
if (old == null || !eq(old, at.value(a))) {
// we have to keep track of all new NSNodes that are added
// to the Namespace structure, as their pre values must not
// be updated. I.e. if an NSNode N with pre value 3 existed
// prior to inserting and two new nodes are inserted at
// location pre == 3 we have to make sure N and only N gets
// updated.
newNodes.add(nspaces.add(at.name(a), at.value(a), pre));
ne = true;
}
}
}
byte[] nm = data.name(dpre, dkind);
elem(
dis,
tagindex.index(nm, null, false),
data.attSize(dpre, dkind),
data.size(dpre, dkind),
nspaces.uri(nm, true),
ne);
preStack.push(pre);
break;
case TEXT:
case COMM:
case PI:
// add text
text(pre, dis, data.text(dpre, true), dkind);
break;
case ATTR:
// add attribute
nm = data.name(dpre, dkind);
// check if prefix already in nsScope or not
final byte[] attPref = prefix(nm);
// check if prefix of attribute has already been declared, otherwise
// add declaration to parent node
if (data.nsFlag(dpre) && nsScope.get(attPref) == null) {
nspaces.add(
par,
preStack.isEmpty() ? -1 : preStack.peek(),
attPref,
data.nspaces.uri(data.uri(dpre, dkind)),
this);
// save pre value to set ns flag later for this node. can't be done
// here as direct table access would interfere with the buffer
flagPres.add(par);
}
attr(
pre,
dis,
atnindex.index(nm, null, false),
data.text(dpre, false),
nspaces.uri(nm, false),
false);
break;
}
}
// finalize and update namespace structure
while (!preStack.isEmpty()) nspaces.close(preStack.pop());
nspaces.root(nsRoot);
if (bp != 0) insert(ipre + c - 1 - (c - 1) % buf);
// reset buffer to old size
buffer(1);
// set ns flags
for (int f = 0; f < flagPres.size(); f++) {
final int fl = flagPres.get(f);
table.write2(fl, 1, name(fl) | 1 << 15);
}
// increase size of ancestors
int p = ipar;
while (p >= 0) {
final int k = kind(p);
size(p, k, size(p, k) + dsize);
p = parent(p, k);
}
if (meta.updindex) {
// add the entries to the ID -> PRE mapping:
idmap.insert(ipre, id(ipre), dsize);
indexEnd();
}
if (!cache) updateDist(ipre + dsize, dsize);
// propagate PRE value shifts to namespaces
if (ipar != -1) nspaces.insert(ipre, dsize, newNodes);
}
/**
* Stores a new prefix and namespace.
*
* @param prefix prefix
* @param uri namespace uri
*/
private void put(final byte[] prefix, final byte[] uri) {
if (decls == null) decls = new Atts();
decls.add(prefix, uri);
}
@Override
protected void startOpen(final QNm name) {
namespaces = new NSDecl(namespaces);
attributes.clear();
}
/**
* Finds the prefix for the specified uri.
*
* @param uri namespace uri
* @return prefix, or empty string
*/
public static byte[] prefix(final byte[] uri) {
for (int s = NS.size() - 1; s >= 0; s--) {
if (eq(NS.string(s), uri)) return NS.name(s);
}
return EMPTY;
}
/**
* Finds the specified namespace uri.
*
* @param pref prefix of the namespace
* @return uri, or {@code null}
*/
public static byte[] uri(final byte[] pref) {
for (int s = NS.size() - 1; s >= 0; s--) {
if (eq(NS.name(s), pref)) return NS.string(s);
}
return null;
}
static {
// reserved namespaces
NS.add(XML, XMLURI);
NS.add(XS, XSURI);
NS.add(XSI, XSIURI);
NS.add(FN, FNURI);
NS.add(MATH, MATHURI);
NS.add(MAP, MAPURI);
NS.add(ANN, ANNURI);
RESERVED = NS.size();
// implementation-defined pre-declarations
NS.add(LOCAL, LOCALURI);
NS.add(OUTPUT, OUTPUTURI);
NS.add(ERR, ERRORURI);
// EXPath namespaces
NS.add(EXPERR, EXPERROR);
NS.add(CRYPTO, CRYPTOURI);
NS.add(FILE, FILEURI);
NS.add(HTTP, HTTPURI);
NS.add(PKG, PKGURI);
NS.add(ZIP, ZIPURI);
// EXQuery namespaces
NS.add(RESTXQ, RESTXQURI);
// BaseX namespaces
NS.add(BXERR, BXERRORS);
NS.add(BASEX, BASEXURI);
NS.add(ADMIN, ADMINURI);
NS.add(ARCHIVE, ARCHIVEURI);
NS.add(CLIENT, CLIENTURI);
NS.add(CONVERT, CONVERTURI);
NS.add(DB, DBURI);
NS.add(FETCH, FETCHURI);
NS.add(FT, FTURI);
NS.add(HASH, HASHURI);
NS.add(HOF, HOFURI);
NS.add(HTML, HTMLURI);
NS.add(INDEX, INDEXURI);
NS.add(JSON, JSONURI);
NS.add(OUT, OUTURI);
NS.add(PROC, PROCURI);
NS.add(PROF, PROFURI);
NS.add(QUERY, QUERYURI);
NS.add(RANDOM, RANDOMURI);
NS.add(REPO, REPOURI);
NS.add(SQL, SQLURI);
NS.add(STREAM, STREAMURI);
NS.add(VLDT, VALIDATEURI);
NS.add(XSLT, XSLTURI);
NS.add(XQRY, XQUERYURI);
NS.add(XQUNIT, XQUNITURI);
}
/**
* Checks if the specified uri is a reserved namespace.
*
* @param uri uri to be checked
* @return result of check
*/
public static boolean reserved(final byte[] uri) {
for (int s = RESERVED - 1; s >= 0; s--) {
if (eq(NS.string(s), uri)) return true;
}
return false;
}