Examples with IndexController org.sirix.access.IndexController used on opensource projects

Example 6 with IndexController

use of org.sirix.access.IndexController in project sirix by sirixdb.

the class FindNameIndex method execute.

@Override
public Sequence execute(StaticContext sctx, QueryContext ctx, Sequence[] args) throws QueryException {
    final DBNode doc = (DBNode) args[0];
    final XdmNodeReadTrx rtx = doc.getTrx();
    final IndexController controller = rtx.getResourceManager().getRtxIndexController(rtx.getRevisionNumber());
    if (controller == null) {
        throw new QueryException(new QNm("Document not found: " + ((Str) args[1]).stringValue()));
    }
    final QNm qnm = (QNm) Cast.cast(sctx, (Atomic) args[1], Type.QNM, false);
    final Optional<IndexDef> indexDef = controller.getIndexes().findNameIndex(qnm);
    if (indexDef.isPresent())
        return new Int32(indexDef.get().getID());
    return new Int32(-1);
}

Example 7 with IndexController

use of org.sirix.access.IndexController in project sirix by sirixdb.

the class ScanNameIndex method execute.

@Override
public Sequence execute(StaticContext sctx, QueryContext ctx, Sequence[] args) throws QueryException {
    final DBNode doc = ((DBNode) args[0]);
    final XdmNodeReadTrx rtx = doc.getTrx();
    final IndexController controller = rtx.getResourceManager().getRtxIndexController(rtx.getRevisionNumber());
    if (controller == null) {
        throw new QueryException(new QNm("Document not found: " + ((Str) args[1]).stringValue()));
    }
    final int idx = FunUtil.getInt(args, 1, "$idx-no", -1, null, true);
    final IndexDef indexDef = controller.getIndexes().getIndexDef(idx, IndexType.NAME);
    if (indexDef == null) {
        throw new QueryException(SDBFun.ERR_INDEX_NOT_FOUND, "Index no %s for collection %s and document %s not found.", idx, doc.getCollection().getName(), doc.getTrx().getResourceManager().getResourceConfig().getResource().getFileName().toString());
    }
    if (indexDef.getType() != IndexType.NAME) {
        throw new QueryException(SDBFun.ERR_INVALID_INDEX_TYPE, "Index no %s for collection %s and document %s is not a path index.", idx, doc.getCollection().getName(), doc.getTrx().getResourceManager().getResourceConfig().getResource().getFileName().toString());
    }
    final String names = FunUtil.getString(args, 2, "$names", null, null, false);
    final NameFilter filter = (names != null) ? controller.createNameFilter(names.split(";")) : null;
    final IndexController ic = controller;
    final DBNode node = doc;
    return new LazySequence() {

        @Override
        public Iter iterate() {
            return new BaseIter() {

                Stream<?> s;

                @Override
                public Item next() throws QueryException {
                    if (s == null) {
                        s = new SirixNodeKeyStream(ic.openNameIndex(node.getTrx().getPageTrx(), indexDef, filter), node.getCollection(), node.getTrx());
                    }
                    return (Item) s.next();
                }

                @Override
                public void close() {
                    if (s != null) {
                        s.close();
                    }
                }
            };
        }
    };
}

Example 8 with IndexController

use of org.sirix.access.IndexController in project sirix by sirixdb.

the class CreateCASIndex method execute.

@Override
public Sequence execute(StaticContext sctx, QueryContext ctx, Sequence[] args) throws QueryException {
    if (args.length != 2 && args.length != 3) {
        throw new QueryException(new QNm("No valid arguments specified!"));
    }
    final DBNode doc = ((DBNode) args[0]);
    final XdmNodeReadTrx rtx = doc.getTrx();
    final IndexController controller = rtx.getResourceManager().getWtxIndexController(rtx.getRevisionNumber() - 1);
    if (!(doc.getTrx() instanceof XdmNodeWriteTrx)) {
        throw new QueryException(new QNm("Collection must be updatable!"));
    }
    if (controller == null) {
        throw new QueryException(new QNm("Document not found: " + ((Str) args[1]).stringValue()));
    }
    Type type = null;
    if (args.length > 1 && args[1] != null) {
        final QNm name = new QNm(Namespaces.XS_NSURI, ((Str) args[1]).stringValue());
        type = sctx.getTypes().resolveAtomicType(name);
    }
    final Set<Path<QNm>> paths = new HashSet<>();
    if (args.length == 3 && args[2] != null) {
        final Iter it = args[2].iterate();
        Item next = it.next();
        while (next != null) {
            paths.add(Path.parse(((Str) next).stringValue()));
            next = it.next();
        }
    }
    final IndexDef idxDef = IndexDefs.createCASIdxDef(false, Optional.fromNullable(type), paths, controller.getIndexes().getNrOfIndexDefsWithType(IndexType.CAS));
    try {
        controller.createIndexes(ImmutableSet.of(idxDef), (XdmNodeWriteTrx) doc.getTrx());
    } catch (final SirixIOException e) {
        throw new QueryException(new QNm("I/O exception: " + e.getMessage()), e);
    }
    return idxDef.materialize();
}

Example 9 with IndexController

use of org.sirix.access.IndexController in project sirix by sirixdb.

the class CreateNameIndex method execute.

@Override
public Sequence execute(final StaticContext sctx, final QueryContext ctx, final Sequence[] args) throws QueryException {
    if (args.length != 2 && args.length != 3) {
        throw new QueryException(new QNm("No valid arguments specified!"));
    }
    final DBNode doc = ((DBNode) args[0]);
    final XdmNodeReadTrx rtx = doc.getTrx();
    final IndexController controller = rtx.getResourceManager().getWtxIndexController(rtx.getRevisionNumber() - 1);
    if (!(doc.getTrx() instanceof XdmNodeWriteTrx)) {
        throw new QueryException(new QNm("Collection must be updatable!"));
    }
    if (controller == null) {
        throw new QueryException(new QNm("Document not found: " + ((Str) args[1]).stringValue()));
    }
    final Set<QNm> include = new HashSet<>();
    if (args.length > 1 && args[1] != null) {
        final Iter it = args[1].iterate();
        Item next = it.next();
        while (next != null) {
            include.add((QNm) next);
            next = it.next();
        }
    }
    final IndexDef idxDef = IndexDefs.createSelectiveNameIdxDef(include, controller.getIndexes().getNrOfIndexDefsWithType(IndexType.NAME));
    try {
        controller.createIndexes(ImmutableSet.of(idxDef), (XdmNodeWriteTrx) doc.getTrx());
    } catch (final SirixIOException e) {
        throw new QueryException(new QNm("I/O exception: " + e.getMessage()), e);
    }
    return idxDef.materialize();
}

Example 10 with IndexController

use of org.sirix.access.IndexController in project sirix by sirixdb.

the class CreatePathIndex method execute.

@Override
public Sequence execute(final StaticContext sctx, final QueryContext ctx, final Sequence[] args) throws QueryException {
    if (args.length != 2 && args.length != 3) {
        throw new QueryException(new QNm("No valid arguments specified!"));
    }
    final DBNode doc = ((DBNode) args[0]);
    final XdmNodeReadTrx rtx = doc.getTrx();
    final IndexController controller = rtx.getResourceManager().getWtxIndexController(rtx.getRevisionNumber() - 1);
    if (!(doc.getTrx() instanceof XdmNodeWriteTrx)) {
        throw new QueryException(new QNm("Collection must be updatable!"));
    }
    if (controller == null) {
        throw new QueryException(new QNm("Document not found: " + ((Str) args[1]).stringValue()));
    }
    if (!(doc.getTrx() instanceof XdmNodeWriteTrx)) {
        throw new QueryException(new QNm("Collection must be updatable!"));
    }
    final Set<Path<QNm>> paths = new HashSet<>();
    if (args.length > 2 && args[2] != null) {
        final Iter it = args[2].iterate();
        Item next = it.next();
        while (next != null) {
            paths.add(Path.parse(((Str) next).stringValue()));
            next = it.next();
        }
    }
    final IndexDef idxDef = IndexDefs.createPathIdxDef(paths, controller.getIndexes().getNrOfIndexDefsWithType(IndexType.PATH));
    try {
        controller.createIndexes(ImmutableSet.of(idxDef), (XdmNodeWriteTrx) doc.getTrx());
    } catch (final SirixIOException e) {
        throw new QueryException(new QNm("I/O exception: " + e.getMessage()), e);
    }
    return idxDef.materialize();
}