Examples with LSMInvertedIndexAccessor org.apache.hyracks.storage.am.lsm.invertedindex.impls.LSMInvertedIndexAccessor used on opensource projects

Example 1 with LSMInvertedIndexAccessor

use of org.apache.hyracks.storage.am.lsm.invertedindex.impls.LSMInvertedIndexAccessor in project asterixdb by apache.

the class LSMInvertedIndexTestWorker method performOp.

@Override
public void performOp(ITupleReference tuple, TestOperation op) throws HyracksDataException {
    LSMInvertedIndexAccessor accessor = (LSMInvertedIndexAccessor) indexAccessor;
    IIndexCursor searchCursor = accessor.createSearchCursor(false);
    IIndexCursor rangeSearchCursor = accessor.createRangeSearchCursor();
    RangePredicate rangePred = new RangePredicate(null, null, true, true, null, null);
    IBinaryTokenizerFactory tokenizerFactory = invIndex.getTokenizerFactory();
    int searchModifierIndex = Math.abs(rnd.nextInt()) % TEST_SEARCH_MODIFIERS.length;
    InvertedIndexSearchPredicate searchPred = new InvertedIndexSearchPredicate(tokenizerFactory.createTokenizer(), TEST_SEARCH_MODIFIERS[searchModifierIndex]);
    switch(op) {
        case INSERT:
            {
                insert(accessor, tuple);
                break;
            }
        case DELETE:
            {
                // Randomly pick a document from the corpus to delete.
                if (!documentCorpus.isEmpty()) {
                    int docIndex = Math.abs(rnd.nextInt()) % documentCorpus.size();
                    ITupleReference deleteTuple = documentCorpus.get(docIndex);
                    accessor.delete(deleteTuple);
                    // Swap tupleIndex with last element.
                    documentCorpus.set(docIndex, documentCorpus.get(documentCorpus.size() - 1));
                    documentCorpus.remove(documentCorpus.size() - 1);
                } else {
                    // No existing documents to delete, treat this case as an insert.
                    insert(accessor, tuple);
                }
                break;
            }
        case POINT_SEARCH:
            {
                searchCursor.reset();
                searchPred.setQueryTuple(tuple);
                searchPred.setQueryFieldIndex(0);
                try {
                    accessor.search(searchCursor, searchPred);
                    consumeCursorTuples(searchCursor);
                } catch (HyracksDataException e) {
                    // Ignore.
                    if (e.getErrorCode() != ErrorCode.OCCURRENCE_THRESHOLD_PANIC_EXCEPTION) {
                        throw e;
                    }
                }
                break;
            }
        case SCAN:
            {
                rangeSearchCursor.reset();
                accessor.rangeSearch(rangeSearchCursor, rangePred);
                consumeCursorTuples(rangeSearchCursor);
                break;
            }
        case MERGE:
            {
                accessor.scheduleMerge(NoOpIOOperationCallbackFactory.INSTANCE.createIoOpCallback(), invIndex.getImmutableComponents());
                break;
            }
        default:
            throw new HyracksDataException("Op " + op.toString() + " not supported.");
    }
}