@Test
public void testCollectDocLevelWhereClause() throws Throwable {
EqOperator op =
(EqOperator)
functions.get(
new FunctionIdent(
EqOperator.NAME,
ImmutableList.<DataType>of(DataTypes.INTEGER, DataTypes.INTEGER)));
List<Symbol> toCollect = Collections.<Symbol>singletonList(testDocLevelReference);
WhereClause whereClause =
new WhereClause(
new Function(
op.info(), Arrays.<Symbol>asList(testDocLevelReference, Literal.newLiteral(2))));
CollectPhase collectNode = getCollectNode(toCollect, whereClause);
Bucket result = collect(collectNode);
assertThat(result, contains(isRow(2)));
}
@Test
public void testCollectShardExpressionsWhereShardIdIs0() throws Exception {
EqOperator op =
(EqOperator)
functions.get(
new FunctionIdent(
EqOperator.NAME,
ImmutableList.<DataType>of(DataTypes.INTEGER, DataTypes.INTEGER)));
List<Symbol> toCollect = ImmutableList.<Symbol>of(testShardIdReference);
CollectPhase collectNode =
new CollectPhase(
UUID.randomUUID(), 0, "shardCollect", shardRouting(0, 1), toCollect, EMPTY_PROJECTIONS);
collectNode.whereClause(
new WhereClause(
new Function(op.info(), Arrays.asList(testShardIdReference, Literal.newLiteral(0)))));
collectNode.maxRowGranularity(RowGranularity.SHARD);
Bucket result = getBucket(collectNode);
assertThat(result, contains(isRow(0)));
}
@Test
public void testCollectWithNullWhereClause() throws Exception {
EqOperator op =
(EqOperator)
functions.get(
new FunctionIdent(
EqOperator.NAME,
ImmutableList.<DataType>of(DataTypes.INTEGER, DataTypes.INTEGER)));
CollectPhase collectNode =
new CollectPhase(
UUID.randomUUID(),
0,
"whereClause",
testRouting,
TO_COLLECT_TEST_REF,
EMPTY_PROJECTIONS);
collectNode.whereClause(
new WhereClause(
new Function(op.info(), Arrays.<Symbol>asList(Literal.NULL, Literal.NULL))));
Bucket result = getBucket(collectNode);
assertThat(result.size(), is(0));
}
/**
* Returns an instance of a with the specified name and number of arguments, or {@code null}.
*
* @param name name of the function
* @param args optional arguments
* @param dyn compile-/run-time flag
* @param ctx query context
* @param ii input info
* @return function instance
* @throws QueryException query exception
*/
public static TypedFunc get(
final QNm name,
final Expr[] args,
final boolean dyn,
final QueryContext ctx,
final InputInfo ii)
throws QueryException {
// get namespace and local name
// parse data type constructors
if (eq(name.uri(), XSURI)) {
final byte[] ln = name.local();
final AtomType type = AtomType.find(name, false);
if (type == null) {
final Levenshtein ls = new Levenshtein();
for (final AtomType t : AtomType.values()) {
if (t.par != null
&& t != AtomType.NOT
&& t != AtomType.AAT
&& t != AtomType.BIN
&& ls.similar(lc(ln), lc(t.string()), 0))
FUNSIMILAR.thrw(ii, name.string(), t.string());
}
}
// no constructor function found, or abstract type specified
if (type == null || type == AtomType.NOT || type == AtomType.AAT) {
FUNCUNKNOWN.thrw(ii, name.string());
}
if (args.length != 1) FUNCTYPE.thrw(ii, name.string());
final SeqType to = SeqType.get(type, Occ.ZERO_ONE);
return TypedFunc.constr(new Cast(ii, args[0], to), to);
}
// pre-defined functions
final StandardFunc fun = Functions.get().get(name, args, ii);
if (fun != null) {
if (!ctx.sc.xquery3 && fun.xquery3()) FEATURE30.thrw(ii);
for (final Function f : Function.UPDATING) {
if (fun.sig == f) {
ctx.updating(true);
break;
}
}
return new TypedFunc(fun, fun.sig.type(args.length));
}
// user-defined function
final TypedFunc tf = ctx.funcs.get(name, args, ii);
if (tf != null) return tf;
// Java function (only allowed with administrator permissions)
final JavaMapping jf = JavaMapping.get(name, args, ctx, ii);
if (jf != null) return TypedFunc.java(jf);
// add user-defined function that has not been declared yet
if (!dyn && FuncType.find(name) == null) return ctx.funcs.add(name, args, ii, ctx);
// no function found
return null;
}