fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesTestWorker.java

/*
 * Copyright 2009-2010 by The Regents of the University of California
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * you may obtain a copy of the License from
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package edu.uci.ics.hyracks.storage.am.lsm.rtree.multithread;

import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
import edu.uci.ics.hyracks.storage.am.common.TestOperationSelector;
import edu.uci.ics.hyracks.storage.am.common.TestOperationSelector.TestOperation;
import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexCursor;
import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
import edu.uci.ics.hyracks.storage.am.common.datagen.DataGenThread;
import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
import edu.uci.ics.hyracks.storage.am.lsm.rtree.impls.LSMRTreeWithAntiMatterTuples.LSMRTreeWithAntiMatterTuplesAccessor;
import edu.uci.ics.hyracks.storage.am.rtree.impls.SearchPredicate;

public class LSMRTreeWithAntiMatterTuplesTestWorker extends AbstractLSMRTreeTestWorker {

    public LSMRTreeWithAntiMatterTuplesTestWorker(DataGenThread dataGen, TestOperationSelector opSelector,
            IIndex index, int numBatches) {
        super(dataGen, opSelector, index, numBatches);
    }

    @Override
    public void performOp(ITupleReference tuple, TestOperation op) throws HyracksDataException, IndexException {
        LSMRTreeWithAntiMatterTuplesAccessor accessor = (LSMRTreeWithAntiMatterTuplesAccessor) indexAccessor;
        ITreeIndexCursor searchCursor = accessor.createSearchCursor();
        MultiComparator cmp = accessor.getMultiComparator();
        SearchPredicate rangePred = new SearchPredicate(tuple, cmp);

        switch (op) {
            case INSERT:
                rearrangeTuple(tuple, cmp);
                accessor.insert(rearrangedTuple);
                break;

            case DELETE:
                rearrangeTuple(tuple, cmp);
                accessor.delete(rearrangedTuple);
                break;

            case SCAN:
                searchCursor.reset();
                rangePred.setSearchKey(null);
                accessor.search(searchCursor, rangePred);
                consumeCursorTuples(searchCursor);
                break;

            case MERGE:
                accessor.scheduleMerge(NoOpIOOperationCallback.INSTANCE);
                break;

            default:
                throw new HyracksDataException("Op " + op.toString() + " not supported.");
        }
    }
}