Exemplo n.º 1
0
    def _all_combos(self):
        """
        RETURN AN ITERATOR OF ALL COORDINATES
        """
        combos = PRODUCT(self.dims)
        if not combos:
            return

        calc = [(coalesce(PRODUCT(self.dims[i + 1:]), 1), mm)
                for i, mm in enumerate(self.dims)]

        for c in xrange(combos):
            yield tuple(int(c / dd) % mm for dd, mm in calc)
Exemplo n.º 2
0
 def __len__(self):
     if self.num == 0:
         return 0
     return PRODUCT(self.dims)
Exemplo n.º 3
0
def es_terms_stats(esq, mvel, query):
    select = listwrap(query.select)
    facetEdges = []  # EDGES THAT WILL REQUIRE A FACET FOR EACH PART
    termsEdges = DictList()
    specialEdge = None
    special_index = -1

    # A SPECIAL EDGE IS ONE THAT HAS AN UNDEFINED NUMBER OF PARTITIONS AT QUERY TIME
    # FIND THE specialEdge, IF ONE
    for f, tedge in enumerate(query.edges):
        if tedge.domain.type in domains.KNOWN:
            for p, part in enumerate(tedge.domain.partitions):
                part.dataIndex = p

            # FACETS ARE ONLY REQUIRED IF SQL JOIN ON DOMAIN IS REQUIRED (RANGE QUERY)
            # OR IF WE ARE NOT SIMPLY COUNTING
            # OR IF NO SCRIPTING IS ALLOWED (SOME OTHER CODE IS RESPONSIBLE FOR SETTING isFacet)
            # OR IF WE JUST WANT TO FORCE IT :)
            # OF COURSE THE default EDGE IS NOT EXPLICIT, SO MUST BE A TERM

            facetEdges.append(tedge)
        else:
            if specialEdge:
                Log.error(
                    "There is more than one open-ended edge: self can not be handled"
                )
            specialEdge = tedge
            special_index = f
            termsEdges.append(tedge)

    if not specialEdge:
        # WE SERIOUSLY WANT A SPECIAL EDGE, OTHERWISE WE WILL HAVE TOO MANY FACETS
        # THE BIGGEST EDGE MAY BE COLLAPSED TO A TERM, MAYBE?
        num_parts = 0
        special_index = -1
        for i, e in enumerate(facetEdges):
            l = len(e.domain.partitions)
            if ((e.value and is_keyword(e.value))
                    or len(e.domain.dimension.fields) == 1) and l > num_parts:
                num_parts = l
                specialEdge = e
                special_index = i

        facetEdges.pop(special_index)
        termsEdges.append(specialEdge)

    total_facets = PRODUCT(len(f.domain.partitions)
                           for f in facetEdges) * len(select)
    if total_facets > 100:
        # WE GOT A PROBLEM, LETS COUNT THE SIZE OF REALITY:
        counts = esq.query({
            "from": query.frum,
            "select": {
                "aggregate": "count"
            },
            "edges": facetEdges,
            "where": query.where,
            "limit": query.limit
        })

        esFacets = []

        def add_facet(value, parts, cube):
            if value:
                esFacets.append(parts)

        counts["count"].forall(add_facet)

        Log.note(
            "{{theory_count}} theoretical combinations, {{real_count}} actual combos found",
            real_count=len(esFacets),
            theory_count=total_facets)

        if not esFacets:
            # MAKE EMPTY CUBE
            matricies = {}
            dims = [
                len(e.domain.partitions) + (1 if e.allowNulls else 0)
                for e in query.edges
            ]
            for s in select:
                matricies[s.name] = Matrix(*dims)
            cube = Cube(query.select, query.edges, matricies)
            cube.frum = query
            return cube

    else:
        # GENERATE ALL COMBOS
        esFacets = getAllEdges(facetEdges)

    calcTerm = compileEdges2Term(mvel, termsEdges, DictList())
    term2parts = calcTerm.term2parts

    if len(esFacets) * len(select) > 1000:
        Log.error(
            "not implemented yet"
        )  # WE HAVE SOME SERIOUS PERMUTATIONS, WE MUST ISSUE MULTIPLE QUERIES
        pass

    FromES = build_es_query(query)

    for s in select:
        for parts in esFacets:
            condition = DictList()
            constants = DictList()
            name = [literal_field(s.name)]
            for f, fedge in enumerate(facetEdges):
                name.append(str(parts[f].dataIndex))
                condition.append(buildCondition(mvel, fedge, parts[f]))
                constants.append({
                    "name": fedge.domain.name,
                    "value": parts[f]
                })
            condition.append(query.where)
            name = ",".join(name)

            FromES.facets[name] = {
                "terms_stats": {
                    "key_field":
                    calcTerm.field,
                    "value_field":
                    s.value if is_keyword(s.value) else None,
                    "value_script":
                    mvel.compile_expression(s.value)
                    if not is_keyword(s.value) else None,
                    "size":
                    coalesce(query.limit, 200000)
                }
            }
            if condition:
                FromES.facets[name].facet_filter = simplify_esfilter(
                    {"and": condition})

    data = es09.util.post(esq.es, FromES, query.limit)

    if specialEdge.domain.type not in domains.KNOWN:
        # WE BUILD THE PARTS BASED ON THE RESULTS WE RECEIVED
        partitions = DictList()
        map = {}
        for facetName, parts in data.facets.items():
            for stats in parts.terms:
                if not map[stats]:
                    part = {"value": stats, "name": stats}
                    partitions.append(part)
                    map[stats] = part

        partitions.sort(specialEdge.domain.compare)
        for p, part in enumerate(partitions):
            part.dataIndex = p

        specialEdge.domain.map = map
        specialEdge.domain.partitions = partitions

    # MAKE CUBE
    matricies = {}
    dims = [
        len(e.domain.partitions) + (1 if e.allowNulls else 0)
        for e in query.edges
    ]
    for s in select:
        matricies[s.name] = Matrix(*dims)

    name2agg = {s.name: aggregates[s.aggregate] for s in select}

    # FILL CUBE
    for edgeName, parts in data.facets.items():
        temp = edgeName.split(",")
        pre_coord = tuple(int(c) for c in temp[1:])
        sname = temp[0]

        for stats in parts.terms:
            if specialEdge:
                special = term2parts(stats.term)[0]
                coord = pre_coord[:special_index] + (
                    special.dataIndex, ) + pre_coord[special_index:]
            else:
                coord = pre_coord
            matricies[sname][coord] = stats[name2agg[sname]]

    cube = Cube(query.select, query.edges, matricies)
    cube.frum = query
    return cube