Examples with PositionBasedResultTuple org.apache.phoenix.schema.tuple.PositionBasedResultTuple used on opensource projects

Example 1 with PositionBasedResultTuple

use of org.apache.phoenix.schema.tuple.PositionBasedResultTuple in project phoenix by apache.

the class HashJoinRegionScanner method processResults.

private void processResults(List<Cell> result, boolean hasBatchLimit) throws IOException {
    if (result.isEmpty())
        return;
    Tuple tuple = useQualifierAsListIndex ? new PositionBasedResultTuple(result) : new ResultTuple(Result.create(result));
    // always returns true.
    if (joinInfo.forceProjection()) {
        tuple = projector.projectResults(tuple, useNewValueColumnQualifier);
    }
    // TODO: fix below Scanner.next() and Scanner.nextRaw() methods as well.
    if (hasBatchLimit)
        throw new UnsupportedOperationException("Cannot support join operations in scans with limit");
    int count = joinInfo.getJoinIds().length;
    boolean cont = true;
    for (int i = 0; i < count; i++) {
        if (!(joinInfo.earlyEvaluation()[i]) || hashCaches[i] == null)
            continue;
        ImmutableBytesPtr key = TupleUtil.getConcatenatedValue(tuple, joinInfo.getJoinExpressions()[i]);
        tempTuples[i] = hashCaches[i].get(key);
        JoinType type = joinInfo.getJoinTypes()[i];
        if (((type == JoinType.Inner || type == JoinType.Semi) && tempTuples[i] == null) || (type == JoinType.Anti && tempTuples[i] != null)) {
            cont = false;
            break;
        }
    }
    if (cont) {
        if (projector == null) {
            int dup = 1;
            for (int i = 0; i < count; i++) {
                dup *= (tempTuples[i] == null ? 1 : tempTuples[i].size());
            }
            for (int i = 0; i < dup; i++) {
                resultQueue.offer(tuple);
            }
        } else {
            KeyValueSchema schema = joinInfo.getJoinedSchema();
            if (!joinInfo.forceProjection()) {
                // backward compatibility
                tuple = projector.projectResults(tuple, useNewValueColumnQualifier);
            }
            resultQueue.offer(tuple);
            for (int i = 0; i < count; i++) {
                boolean earlyEvaluation = joinInfo.earlyEvaluation()[i];
                JoinType type = joinInfo.getJoinTypes()[i];
                if (earlyEvaluation && (type == JoinType.Semi || type == JoinType.Anti))
                    continue;
                int j = resultQueue.size();
                while (j-- > 0) {
                    Tuple lhs = resultQueue.poll();
                    if (!earlyEvaluation) {
                        ImmutableBytesPtr key = TupleUtil.getConcatenatedValue(lhs, joinInfo.getJoinExpressions()[i]);
                        tempTuples[i] = hashCaches[i].get(key);
                        if (tempTuples[i] == null) {
                            if (type == JoinType.Inner || type == JoinType.Semi) {
                                continue;
                            } else if (type == JoinType.Anti) {
                                resultQueue.offer(lhs);
                                continue;
                            }
                        }
                    }
                    if (tempTuples[i] == null) {
                        Tuple joined = tempSrcBitSet[i] == ValueBitSet.EMPTY_VALUE_BITSET ? lhs : TupleProjector.mergeProjectedValue((ProjectedValueTuple) lhs, schema, tempDestBitSet, null, joinInfo.getSchemas()[i], tempSrcBitSet[i], joinInfo.getFieldPositions()[i], useNewValueColumnQualifier);
                        resultQueue.offer(joined);
                        continue;
                    }
                    for (Tuple t : tempTuples[i]) {
                        Tuple joined = tempSrcBitSet[i] == ValueBitSet.EMPTY_VALUE_BITSET ? lhs : TupleProjector.mergeProjectedValue((ProjectedValueTuple) lhs, schema, tempDestBitSet, t, joinInfo.getSchemas()[i], tempSrcBitSet[i], joinInfo.getFieldPositions()[i], useNewValueColumnQualifier);
                        resultQueue.offer(joined);
                    }
                }
            }
        }
        // apply post-join filter
        Expression postFilter = joinInfo.getPostJoinFilterExpression();
        if (postFilter != null) {
            for (Iterator<Tuple> iter = resultQueue.iterator(); iter.hasNext(); ) {
                Tuple t = iter.next();
                postFilter.reset();
                ImmutableBytesPtr tempPtr = new ImmutableBytesPtr();
                try {
                    if (!postFilter.evaluate(t, tempPtr)) {
                        iter.remove();
                        continue;
                    }
                } catch (IllegalDataException e) {
                    iter.remove();
                    continue;
                }
                Boolean b = (Boolean) postFilter.getDataType().toObject(tempPtr);
                if (!b.booleanValue()) {
                    iter.remove();
                }
            }
        }
    }
}