Examples with BPlusTree org.apache.jena.dboe.trans.bplustree.BPlusTree used on opensource projects

Example 6 with BPlusTree

use of org.apache.jena.dboe.trans.bplustree.BPlusTree in project jena by apache.

the class LoaderOps method ntBPTree.

/**
 * Get the BPlusTree index for a {@Link NodeTable}
 */
public static BPlusTree ntBPTree(NodeTable nt) {
    NodeTableTRDF ntt = (NodeTableTRDF) (nt.baseNodeTable());
    Index idx = ntt.getIndex();
    return (BPlusTree) idx;
}

Example 7 with BPlusTree

use of org.apache.jena.dboe.trans.bplustree.BPlusTree in project jena by apache.

the class ProcBuildIndexX method indexBuilder.

private static long indexBuilder(DatasetGraph dsg, InputStream input, String indexName) {
    long tickPoint = BulkLoaderX.DataTick;
    int superTick = BulkLoaderX.DataSuperTick;
    // Location of storage, not the DB.
    DatasetGraphTDB dsgtdb = TDBInternal.getDatasetGraphTDB(dsg);
    Location location = dsgtdb.getLocation();
    int keyLength = SystemTDB.SizeOfNodeId * indexName.length();
    int valueLength = 0;
    // The name is the order.
    String primary = indexName;
    String primaryOrder;
    int dftKeyLength;
    int dftValueLength;
    int tupleLength = indexName.length();
    TupleIndex index;
    if (tupleLength == 3) {
        primaryOrder = Names.primaryIndexTriples;
        dftKeyLength = SystemTDB.LenIndexTripleRecord;
        dftValueLength = 0;
        // Find index.
        index = findIndex(dsgtdb.getTripleTable().getNodeTupleTable().getTupleTable().getIndexes(), indexName);
    } else if (tupleLength == 4) {
        primaryOrder = Names.primaryIndexQuads;
        dftKeyLength = SystemTDB.LenIndexQuadRecord;
        dftValueLength = 0;
        index = findIndex(dsgtdb.getQuadTable().getNodeTupleTable().getTupleTable().getIndexes(), indexName);
    } else {
        throw new TDBException("Index name: " + indexName);
    }
    TupleMap colMap = TupleMap.create(primaryOrder, indexName);
    int readCacheSize = 10;
    int writeCacheSize = 100;
    int blockSize = SystemTDB.BlockSize;
    RecordFactory recordFactory = new RecordFactory(dftKeyLength, dftValueLength);
    int order = BPlusTreeParams.calcOrder(blockSize, recordFactory);
    BPlusTreeParams bptParams = new BPlusTreeParams(order, recordFactory);
    int blockSizeNodes = blockSize;
    int blockSizeRecords = blockSize;
    FileSet destination = new FileSet(location, indexName);
    BufferChannel blkState = FileFactory.createBufferChannel(destination, Names.extBptState);
    BlockMgr blkMgrNodes = BlockMgrFactory.create(destination, Names.extBptTree, blockSizeNodes, readCacheSize, writeCacheSize);
    BlockMgr blkMgrRecords = BlockMgrFactory.create(destination, Names.extBptRecords, blockSizeRecords, readCacheSize, writeCacheSize);
    int rowBlock = 1000;
    Iterator<Record> iter = new RecordsFromInput(input, tupleLength, colMap, rowBlock);
    // ProgressMonitor.
    ProgressMonitor monitor = ProgressMonitorOutput.create(BulkLoaderX.LOG_Index, indexName, tickPoint, superTick);
    ProgressIterator<Record> iter2 = new ProgressIterator<>(iter, monitor);
    monitor.start();
    BPlusTree bpt2 = BPlusTreeRewriter.packIntoBPlusTree(iter2, bptParams, recordFactory, blkState, blkMgrNodes, blkMgrRecords);
    bpt2.close();
    monitor.finish();
    // [BULK] End stage.
    long count = monitor.getTicks();
    return count;
}

Example 8 with BPlusTree

use of org.apache.jena.dboe.trans.bplustree.BPlusTree in project jena by apache.

the class BuildTestLib method buildRangeIndex.

public static RangeIndex buildRangeIndex(FileSet mem, RecordFactory factory, IndexParams indexParams) {
    BPlusTree bpt = BPlusTreeFactory.makeMem(5, factory.keyLength(), factory.valueLength());
    bpt.nonTransactional();
    return bpt;
}